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ALERT
Type II Radio Emission
Issued: 05.12.2024 11.11 UTC
Type II Radio Emission
Begin Time: 2024 Dec 05 1040 UTC
Estimated Velocity: 456 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

ALERT
Type II Radio Emission
Issued: 04.12.2024 10.46 UTC
Type II Radio Emission
Begin Time: 2024 Dec 04 1004 UTC
Estimated Velocity: 423 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Issued: 03.12.2024 08.55 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4765
Valid From: 2024 Dec 02 2321 UTC
Now Valid Until: 2024 Dec 03 1500 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 4
Publié: 03.12.2024 03.09 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Dec 03 0259 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Publié: 02.12.2024 23.22 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Dec 02 2321 UTC
Valid To: 2024 Dec 03 0900 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 5
Publié: 30.11.2024 02.42 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Nov 30 0242 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

WARNING
Geomagnetic K-index of 5 expected
Publié: 30.11.2024 01.55 UTC
Geomagnetic K-index of 5 expected
Valid From: 2024 Nov 30 0155 UTC
Valid To: 2024 Nov 30 1500 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 4
Publié: 30.11.2024 01.24 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Nov 30 0123 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Publié: 30.11.2024 01.15 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 30 0112 UTC
Valid To: 2024 Nov 30 1500 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

CANCEL WATCH
Geomagnetic Storm Category G2 Predicted
Publié: 29.11.2024 17.34 UTC
Geomagnetic Storm Category G2 Predicted
Cancel Serial Number: 245
Original Issue Time: 2024 Nov 26 1749 UTC

Comment: G2 conditions are no longer anticipated.

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

WATCH
Geomagnetic Storm Category G2 Predicted
Publié: 26.11.2024 17.49 UTC
Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
Nov 27: None (Below G1) Nov 28: G1 (Minor) Nov 29: G2 (Moderate)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

ALERT
Type II Radio Emission
Publié: 26.11.2024 00.13 UTC
Type II Radio Emission
Begin Time: 2024 Nov 25 2200 UTC
Estimated Velocity: 490 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

ALERT
Type II Radio Emission
Publié: 25.11.2024 21.07 UTC
Type II Radio Emission
Begin Time: 2024 Nov 25 2043 UTC
Estimated Velocity: 248 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

SUMMARY
10cm Radio Burst
Publié: 25.11.2024 08.21 UTC
10cm Radio Burst
Begin Time: 2024 Nov 25 0733 UTC
Maximum Time: 2024 Nov 25 0734 UTC
End Time: 2024 Nov 25 0736 UTC
Duration: 3 minutes
Peak Flux: 210 sfu
Latest Penticton Noon Flux: 203 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

SUMMARY
X-ray Event exceeded M5
Publié: 25.11.2024 08.15 UTC
X-ray Event exceeded M5
Begin Time: 2024 Nov 25 0724 UTC
Maximum Time: 2024 Nov 25 0742 UTC
End Time: 2024 Nov 25 0802 UTC
X-ray Class: M9.4
Location: N21E90
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

ALERT
X-Ray Flux exceeded M5
Publié: 25.11.2024 07.38 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Nov 25 0736 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

ALERT
Geomagnetic K-index of 4
Publié: 24.11.2024 23.36 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Nov 24 2328 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Publié: 24.11.2024 23.08 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 24 2308 UTC
Valid To: 2024 Nov 25 0600 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Publié: 22.11.2024 23.16 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4761
Valid From: 2024 Nov 22 1719 UTC
Now Valid Until: 2024 Nov 23 0600 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

SUMMARY
Proton Event 10MeV Integral Flux exceeded 10pfu
Publié: 22.11.2024 20.35 UTC
Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Nov 21 1925 UTC
Maximum Time: 2024 Nov 22 0355 UTC
End Time: 2024 Nov 22 1845 UTC
Maximum 10MeV Flux: 125 pfu
NOAA Scale: S2 - Moderate

ALERT
Geomagnetic K-index of 4
Publié: 22.11.2024 17.59 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Nov 22 1759 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Publié: 22.11.2024 17.20 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 22 1719 UTC
Valid To: 2024 Nov 22 2359 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

SUMMARY
Proton Event 10MeV Integral Flux exceeded 100pfu
Publié: 22.11.2024 15.08 UTC
Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2024 Nov 21 1925 UTC
Maximum Time: 2024 Nov 22 0355 UTC
End Time: 2024 Nov 22 0530 UTC
Maximum 10MeV Flux: 125 pfu
NOAA Scale: S2 - Moderate

SUMMARY
Proton Event 100MeV Integral Flux exceeded 1pfu
Publié: 22.11.2024 09.55 UTC
Proton Event 100MeV Integral Flux exceeded 1pfu
Begin Time: 2024 Nov 21 1855 UTC
Maximum Time: 2024 Nov 21 2010 UTC
End Time: 2024 Nov 22 0305 UTC
Maximum 100MeV Flux: 7 pfu

CANCEL WARNING
Proton 100MeV Integral Flux above 1pfu expected
Publié: 22.11.2024 09.50 UTC
Proton 100MeV Integral Flux above 1pfu expected
Cancel Serial Number: 115
Original Issue Time: 2024 Nov 21 1900 UTC

Comment: 100MeV proton flux has steadily decreased and is anticipated to remain below the 1 pfu threshold barring another event.

Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

ALERT
Proton Event 10MeV Integral Flux exceeded 100pfu
Publié: 22.11.2024 01.12 UTC
Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2024 Nov 22 0112 UTC
NOAA Scale: S2 - Moderate

Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience small, increased radiation exposures.
Spacecraft - Infrequent single-event upsets to satellites are possible.
Radio - Small effects on polar HF (high frequency) propagation resulting in fades at lower frequencies.

EXTENDED WARNING
Proton 100MeV Integral Flux above 1pfu expected
Publié: 21.11.2024 23.36 UTC
Proton 100MeV Integral Flux above 1pfu expected
Extension to Serial Number: 114
Valid From: 2024 Nov 21 1851 UTC
Now Valid Until: 2024 Nov 22 1500 UTC
Warning Condition: Persistence

Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

EXTENDED WARNING
Proton 10MeV Integral Flux above 10pfu expected
Publié: 21.11.2024 23.36 UTC
Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 589
Valid From: 2024 Nov 21 1917 UTC
Now Valid Until: 2024 Nov 22 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

ALERT
Proton Event 10MeV Integral Flux exceeded 10pfu
Publié: 21.11.2024 20.10 UTC
Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Nov 21 1925 UTC
NOAA Scale: S1 - Minor

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

WARNING
Proton 10MeV Integral Flux above 10pfu expected
Publié: 21.11.2024 19.18 UTC
Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2024 Nov 21 1917 UTC
Valid To: 2024 Nov 22 0300 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

ALERT
Proton Event 100MeV Integral Flux exceeded 1pfu
Publié: 21.11.2024 19.03 UTC
Proton Event 100MeV Integral Flux exceeded 1pfu
Begin Time: 2024 Nov 21 1855 UTC

Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

WARNING
Proton 100MeV Integral Flux above 1pfu expected
Publié: 21.11.2024 19.00 UTC
Proton 100MeV Integral Flux above 1pfu expected
Valid From: 2024 Nov 21 1851 UTC
Valid To: 2024 Nov 21 2359 UTC
Warning Condition: Onset

Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

CANCEL WARNING
Proton 100MeV Integral Flux above 1pfu expected
Publié: 21.11.2024 18.59 UTC
Proton 100MeV Integral Flux above 1pfu expected
Cancel Serial Number: 112
Original Issue Time: 2024 Nov 21 1853 UTC

Comment: Correction being sent for correct end time. Should be 21/2359 UTC.

Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

WARNING
Proton 100MeV Integral Flux above 1pfu expected
Publié: 21.11.2024 18.53 UTC
Proton 100MeV Integral Flux above 1pfu expected
Valid From: 2024 Nov 21 1851 UTC
Valid To: 2024 Nov 22 2359 UTC
Warning Condition: Onset

Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

WARNING
Geomagnetic K-index of 4 expected
Publié: 20.11.2024 04.52 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 20 0452 UTC
Valid To: 2024 Nov 20 1200 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Publié: 19.11.2024 11.58 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 19 1157 UTC
Valid To: 2024 Nov 19 1800 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

CANCEL WARNING
Geomagnetic K-index of 4 expected
Publié: 16.11.2024 12.04 UTC
Geomagnetic K-index of 4 expected
Cancel Serial Number: 4757
Original Issue Time: 2024 Nov 16 0245 UTC

Comment: Incorrect date. This warning is canceled as of 16/1200 UTC.

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 4
Publié: 16.11.2024 02.59 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Nov 16 0258 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Publié: 16.11.2024 02.45 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 16 0245 UTC
Valid To: 2024 Nov 17 1200 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Publié: 14.11.2024 17.38 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4755
Valid From: 2024 Nov 14 0540 UTC
Now Valid Until: 2024 Nov 15 0900 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Publié: 14.11.2024 05.42 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 14 0540 UTC
Valid To: 2024 Nov 14 1800 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Publié: 10.11.2024 23.07 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4753
Valid From: 2024 Nov 08 1940 UTC
Now Valid Until: 2024 Nov 11 2359 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

SUMMARY
10cm Radio Burst
Publié: 10.11.2024 20.34 UTC
10cm Radio Burst
Begin Time: 2024 Nov 10 2015 UTC
Maximum Time: 2024 Nov 10 2018 UTC
End Time: 2024 Nov 10 2019 UTC
Duration: 4 minutes
Peak Flux: 370 sfu
Latest Penticton Noon Flux: 221 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

WARNING
Geomagnetic K-Index of 6 expected
Publié: 10.11.2024 19.40 UTC
Geomagnetic K-Index of 6 expected
Valid From: 2024 Nov 10 1935 UTC
Valid To: 2024 Nov 10 2359 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

ALERT
Geomagnetic K-index of 5
Publié: 10.11.2024 19.10 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Nov 10 1908 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

WARNING
Geomagnetic K-index of 5 expected
Publié: 10.11.2024 14.46 UTC
Geomagnetic K-index of 5 expected
Valid From: 2024 Nov 10 1445 UTC
Valid To: 2024 Nov 10 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Type II Radio Emission
Publié: 10.11.2024 12.28 UTC
Type II Radio Emission
Begin Time: 2024 Nov 10 1207 UTC
Estimated Velocity: 928 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

SUMMARY
X-ray Event exceeded M5
Publié: 10.11.2024 12.27 UTC
X-ray Event exceeded M5
Begin Time: 2024 Nov 10 1151 UTC
Maximum Time: 2024 Nov 10 1206 UTC
End Time: 2024 Nov 10 1214 UTC
X-ray Class: M9.4
Optical Class: 2b
Location: S09E24
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

SUMMARY
10cm Radio Burst
Publié: 10.11.2024 12.25 UTC
10cm Radio Burst
Begin Time: 2024 Nov 10 1203 UTC
Maximum Time: 2024 Nov 10 1204 UTC
End Time: 2024 Nov 10 1205 UTC
Duration: 2 minutes
Peak Flux: 400 sfu
Latest Penticton Noon Flux: 221 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

ALERT
X-Ray Flux exceeded M5
Publié: 10.11.2024 12.07 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Nov 10 1203 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Publié: 10.11.2024 11.46 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4752
Valid From: 2024 Nov 08 1940 UTC
Now Valid Until: 2024 Nov 10 2359 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Publié: 09.11.2024 23.20 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4751
Valid From: 2024 Nov 08 1940 UTC
Now Valid Until: 2024 Nov 10 1200 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 5
Publié: 09.11.2024 13.38 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Nov 09 1334 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 5 expected
Publié: 09.11.2024 11.46 UTC
Geomagnetic K-index of 5 expected
Extension to Serial Number: 1951
Valid From: 2024 Nov 09 0156 UTC
Now Valid Until: 2024 Nov 09 2100 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 5
Publié: 09.11.2024 11.46 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Nov 09 1142 UTC
Synoptic Period: 0900-1200 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Publié: 09.11.2024 11.07 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4750
Valid From: 2024 Nov 08 1940 UTC
Now Valid Until: 2024 Nov 09 2359 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 5 expected
Publié: 09.11.2024 01.56 UTC
Geomagnetic K-index of 5 expected
Valid From: 2024 Nov 09 0156 UTC
Valid To: 2024 Nov 09 1200 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 4
Publié: 08.11.2024 20.12 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Nov 08 2010 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Publié: 08.11.2024 19.40 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 08 1940 UTC
Valid To: 2024 Nov 09 1200 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Electron 2MeV Integral Flux exceeded 1000pfu
Publié: 07.11.2024 16.03 UTC
Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2024 Nov 07 1535 UTC
Station: 16

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

ALERT
Type II Radio Emission
Publié: 07.11.2024 08.14 UTC
Type II Radio Emission
Begin Time: 2024 Nov 07 0535 UTC
Estimated Velocity: 281 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

SUMMARY
X-ray Event exceeded M5
Publié: 06.11.2024 14.50 UTC
X-ray Event exceeded M5
Begin Time: 2024 Nov 06 1427 UTC
Maximum Time: 2024 Nov 06 1438 UTC
End Time: 2024 Nov 06 1445 UTC
X-ray Class: M5.3
Location: S07E68
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

ALERT
X-Ray Flux exceeded M5
Publié: 06.11.2024 14.35 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Nov 06 1433 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

ALERT
Type II Radio Emission
Publié: 06.11.2024 14.04 UTC
Type II Radio Emission
Begin Time: 2024 Nov 06 1350 UTC
Estimated Velocity: 256 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

SUMMARY
X-ray Event exceeded X1
Publié: 06.11.2024 13.53 UTC
X-ray Event exceeded X1
Begin Time: 2024 Nov 06 1324 UTC
Maximum Time: 2024 Nov 06 1340 UTC
End Time: 2024 Nov 06 1346 UTC
X-ray Class: X2.3
Optical Class: 2b
Location: S09E17
NOAA Scale: R3 - Strong

Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

ALERT
X-Ray Flux exceeded M5
Publié: 06.11.2024 13.41 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Nov 06 1339 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

SUMMARY
X-ray Event exceeded M5
Publié: 06.11.2024 09.09 UTC
X-ray Event exceeded M5
Begin Time: 2024 Nov 06 0848 UTC
Maximum Time: 2024 Nov 06 0850 UTC
End Time: 2024 Nov 06 0854 UTC
X-ray Class: M5.8
Location: N15W57
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

ALERT
X-Ray Flux exceeded M5
Publié: 06.11.2024 08.51 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Nov 06 0849 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

WARNING
Geomagnetic K-index of 4 expected
Publié: 06.11.2024 02.42 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 06 0241 UTC
Valid To: 2024 Nov 06 1200 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

CANCEL WARNING
Geomagnetic K-index of 4 expected
Publié: 06.11.2024 02.41 UTC
Geomagnetic K-index of 4 expected
Cancel Serial Number: 4747
Original Issue Time: 2024 Nov 06 0238 UTC

Comment: Issued in error for valid to date

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Publié: 06.11.2024 02.38 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 06 0238 UTC
Valid To: 2024 Nov 07 1200 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

Table

Date Radio flux 10.7 cm SESC Le nombre des taches solaires Tache de la zone 10E-6 De nouvelles régions GOES15 X-ray Bkgd flux éclairs
X-ray Optique
C M X S 1 2 3
05-11-2024 245 149 1450 0 * 7 5 0 15 1 1 0
06-11-2024 260 155 1650 2 * 7 13 1 10 2 0 0
07-11-2024 239 164 1900 1 * 6 7 0 11 4 0 0
08-11-2024 231 167 1680 0 * 13 1 0 15 1 0 0
09-11-2024 221 176 1630 1 * 8 1 0 26 2 0 0
10-11-2024 231 121 1420 0 * 7 3 0 5 3 2 0
11-11-2024 182 138 1180 2 * 3 2 0 3 3 0 0
12-11-2024 172 116 620 0 * 8 0 0 6 0 0 0
13-11-2024 150 109 600 1 * 9 2 0 3 1 0 0
14-11-2024 147 96 530 1 * 6 0 0 1 0 0 0
15-11-2024 149 71 630 0 * 3 2 0 3 0 0 0
16-11-2024 140 71 540 1 * 8 1 0 1 1 0 0
17-11-2024 146 117 655 4 * 5 0 0 2 0 0 0
18-11-2024 165 118 730 2 * 16 10 0 8 2 0 0
19-11-2024 157 109 610 0 * 9 0 0 6 0 0 0
20-11-2024 163 113 650 1 * 7 1 0 1 0 0 0
21-11-2024 166 148 520 3 * 5 0 0 1 0 0 0
22-11-2024 179 170 640 1 * 8 2 0 7 1 0 0
23-11-2024 200 156 655 1 * 10 2 0 3 1 1 0
24-11-2024 203 164 1025 2 * 7 1 0 4 0 0 0
25-11-2024 220 140 1110 0 * 7 7 0 9 0 1 0
26-11-2024 222 163 1500 2 * 7 0 0 4 0 0 0
27-11-2024 225 141 1130 0 * 11 1 0 1 0 0 0
28-11-2024 214 149 1300 1 * 4 0 0 1 0 0 0
29-11-2024 220 162 1430 0 * 9 0 0 3 0 0 0
30-11-2024 204 103 1190 0 * 12 0 0 2 1 0 0
01-12-2024 186 83 1000 1 * 5 0 0 0 0 0 0
02-12-2024 185 113 910 2 * 8 0 0 7 0 0 0
03-12-2024 185 126 850 1 * 7 0 0 4 0 0 0
04-12-2024 175 105 690 1 * 8 3 0 5 0 0 0
Moyenne/Total 193 130 1014 31 230 64 1 167 23 5 0

Graphique de synthèse

éclairs

Solar wind

Solar Wind

Le vent solaire est un flux de plasma libéré de la haute atmosphère du Soleil. Il se compose principalement d'électrons, de protons et de particules alpha avec des énergies généralement comprises entre 1,5 et 10 keV. Le flux de particules varie en densité, température et vitesse dans le temps et sur la longitude solaire. Ces particules peuvent échapper à la gravité du Soleil en raison de leur haute énergie, de la température élevée de la couronne et des phénomènes magnétiques, électriques et électromagnétiques qu'elle contient.

Le vent solaire est divisé en deux composantes, respectivement appelées le vent solaire lent et le vent solaire rapide. Le vent solaire lent a une vitesse d'environ 400 km / s, une température de 1,4–1,6 × 10e6 K et une composition proche de la couronne. En revanche, le vent solaire rapide a une vitesse typique de 750 km / s, une température de 8 × 10e5 K et il correspond presque à la composition de la photosphère du Soleil. Le vent solaire lent est deux fois plus dense et plus variable en intensité que le vent solaire rapide. Le vent lent a également une structure plus complexe, avec des régions turbulentes et des structures à grande échelle.

Solar radio flux at 10.7 cm

Solar radio flux at 10.7 cm

Le flux radioélectrique solaire à 10,7 cm (2800 MHz) est un excellent indicateur de l'activité solaire. Souvent appelé indice F10.7, c'est l'un des enregistrements les plus anciens d'activité solaire. Les émissions radio F10.7 proviennent de haut dans la chromosphère et bas dans la couronne de l'atmosphère solaire. Le F10.7 est bien corrélé avec le nombre de taches solaires ainsi qu'avec un certain nombre d'enregistrements d'irradiance solaire UltraViolet (UV) et visible. Rapporté en «unités de flux solaire» (s.f.u.), le F10.7 peut varier de moins de 50 s.f.u., à plus de 300 s.f.u., au cours d'un cycle solaire.

Flares

Flares

Une éruption solaire est un éclair soudain de luminosité observé à la surface du Soleil ou sur le flanc solaire, qui est interprété comme une importante libération d'énergie allant jusqu'à 6 × 10e25 joules d'énergie. Ils sont souvent, mais pas toujours, suivis d'une éjection de masse coronale colossale. La fusée éjecte des nuages ​​d'électrons, d'ions et d'atomes à travers la couronne du soleil dans l'espace. Ces nuages ​​atteignent généralement la Terre un jour ou deux après l'événement.

Les éruptions solaires affectent toutes les couches de l'atmosphère solaire (photosphère, chromosphère et couronne), lorsque le milieu plasma est chauffé à des dizaines de millions de kelvin, tandis que les électrons, les protons et les ions plus lourds sont accélérés à près de la vitesse de la lumière. Ils produisent un rayonnement à travers le spectre électromagnétique à toutes les longueurs d'onde, des ondes radio aux rayons gamma, bien que la plupart de l'énergie soit répartie sur des fréquences en dehors de la plage visuelle et pour cette raison, la majorité des fusées éclairantes ne sont pas visibles à l'œil nu et doivent être observé avec des instruments spéciaux. Les éruptions se produisent dans les régions actives autour des taches solaires, où des champs magnétiques intenses pénètrent dans la photosphère pour relier la couronne à l'intérieur solaire. Les fusées éclairantes sont alimentées par la libération soudaine (de quelques minutes à des dizaines de minutes) d'énergie magnétique stockée dans la couronne. Les mêmes rejets d'énergie peuvent produire des éjections de masse coronale (CME), bien que la relation entre les CME et les éruptions ne soit pas encore bien établie.

La fréquence d'apparition des éruptions solaires varie, de plusieurs par jour lorsque le Soleil est particulièrement «actif» à moins d'une par semaine lorsque le Soleil est «calme», suivant le cycle de 11 ans (le cycle solaire). Les grosses fusées éclairantes sont moins fréquentes que les plus petites.

Classification

Les éruptions solaires sont classées comme A, B, C, M ou X selon le flux de pointe (en watts par mètre carré, W / m2) de rayons X de 100 à 800 picomètres près de la Terre, tel que mesuré sur le vaisseau spatial GOES.

Classification Peak Flux Range at 100-800 picometer
W/m2
A < 10e-7
B 10e-7 to 10e-6
C 10e-6 to 10e-5
M 10e-5 to 10e-4
X 10e-4 to 10e-3
Z > 10e-3

An earlier flare classification is based on Hα spectral observations. The scheme uses both the intensity and emitting surface. The classification in intensity is qualitative, referring to the flares as: (f)aint, (n)ormal or (b)rilliant. The emitting surface is measured in terms of millionths of the hemisphere and is described below. (The total hemisphere area AH = 6.2 × 1012 km2.)

Classification Corrected area
(millionths of hemisphere)
S < 100
1 100 - 250
2 250 - 600
3 600 - 1200
4 > 1200

Sunspot number

Sunspots

Les taches solaires sont des phénomènes temporaires sur la photosphère du Soleil qui apparaissent visiblement comme des taches sombres par rapport aux régions environnantes. Ils correspondent à des concentrations de champ magnétique qui inhibent la convection et entraînent une température de surface réduite par rapport à la photosphère environnante. Les taches solaires apparaissent généralement par paires, avec des membres de paires de polarité magnétique opposée. Le nombre de taches solaires varie en fonction du cycle solaire d'environ 11 ans.

Les populations de taches solaires augmentent rapidement et diminuent plus lentement selon un cycle irrégulier de 11 ans, bien que des variations significatives du nombre de taches solaires observant la période de 11 ans soient connues sur des périodes plus longues. Par exemple, de 1900 aux années 1960, la tendance des maxima solaires du nombre de taches solaires a été à la hausse; des années 1960 à nos jours, il a quelque peu diminué. Au cours des dernières décennies, le Soleil a eu un niveau moyen d'activité des taches solaires nettement élevé; il était également actif pour la dernière fois il y a plus de 8 000 ans.

Le nombre de taches solaires est en corrélation avec l'intensité du rayonnement solaire au cours de la période depuis 1979, lorsque les mesures par satellite du flux radiatif absolu sont devenues disponibles. Étant donné que les taches solaires sont plus sombres que la photosphère environnante, on peut s'attendre à ce que plus de taches solaires conduisent à moins de rayonnement solaire et à une constante solaire diminuée. Cependant, les marges environnantes des taches solaires sont plus lumineuses que la moyenne et sont donc plus chaudes; Dans l'ensemble, plus de taches solaires augmentent la constante solaire ou la luminosité du Soleil. La variation causée par le cycle des taches solaires à la production solaire est relativement faible, de l'ordre de 0,1% de la constante solaire (une plage pic à creux de 1,3 W / m2 contre 1366 W / m2 pour la constante solaire moyenne).

K-indices



Aujourd’hui


0h
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2. 33 2. 33 1.



Data


Estimated Planetary

Estimated Planetary

Date A K-indices (UTC)
0h 3h 6h 9h 12h 15h 18h 21h
06-11-2024 10 3. 33 3. 33 2.
07-11-2024 9 1. 33 1. 00 2.
08-11-2024 11 2. 33 1. 00 1.
09-11-2024 32 4. 00 4. 00 3.
10-11-2024 25 4. 00 4. 00 2.
11-11-2024 10 2. 33 2. 00 3.
12-11-2024 5 2. 00 1. 33 2.
13-11-2024 7 3. 00 2. 33 0.
14-11-2024 11 1. 00 3. 33 1.
15-11-2024 13 3. 00 3. 67 2.
16-11-2024 8 3. 67 2. 67 2.
17-11-2024 8 1. 00 3. 00 2.
18-11-2024 4 1. 00 2. 00 0.
19-11-2024 9 1. 00 1. 00 1.
20-11-2024 9 1. 00 3. 00 3.
21-11-2024 8 0. 67 1. 33 1.
22-11-2024 12 2. 33 2. 00 0.
23-11-2024 8 2. 00 1. 67 1.
24-11-2024 7 1. 67 1. 67 1.
25-11-2024 11 3. 33 2. 33 2.
26-11-2024 7 3. 33 2. 33 1.
27-11-2024 5 1. 00 0. 67 1.
28-11-2024 4 2. 00 1. 00 0.
29-11-2024 8 1. 67 2. 33 1.
30-11-2024 11 4. 67 3. 33 2.
01-12-2024 7 1. 33 1. 00 2.
02-12-2024 6 2. 33 2. 00 1.
03-12-2024 13 3. 67 3. 00 2.
04-12-2024 7 1. 67 1. 33 1.
05-12-2024 7 2. 33 2. 33 1.

Middle Latitude

Date A K-indices
06-11-2024 9 3 3 2 2 3 2 1 1
07-11-2024 7 1 1 2 2 1 3 2 2
08-11-2024 7 1 0 2 1 2 1 3 3
09-11-2024 24 4 3 3 5 4 4 3 3
10-11-2024 15 4 3 2 1 4 3 3 2
11-11-2024 7 2 1 3 2 2 2 1 1
12-11-2024 4 2 1 2 1 2 1 1 0
13-11-2024 5 2 2 0 0 3 1 1 1
14-11-2024 10 0 3 2 1 3 2 2 4
15-11-2024 10 3 3 3 2 2 2 2 2
16-11-2024 8 3 3 3 2 2 1 0 1
17-11-2024 6 0 3 2 2 2 1 1 1
18-11-2024 3 1 2 0 0 2 2 0 1
19-11-2024 6 0 1 2 2 3 2 2 1
20-11-2024 8 0 3 3 2 2 2 1 2
21-11-2024 5 0 2 2
22-11-2024 10 1 1 1 2 3 4 2 3
23-11-2024 7 2 1 1 1 3 2 3 1
24-11-2024 7 1 1 2 1 2 2 2 3
25-11-2024 9 2 2 2 2 3 3 1 2
26-11-2024 6 3 2 0 1 2 2 1 2
27-11-2024 3 0 0 1 1 1 2 1 1
28-11-2024 3 1 1 0 1 1 2 1 0
29-11-2024 6 1 2 1 2 2 2 2 2
30-11-2024 9 4 2 2 1 2 2 1 2
01-12-2024 6 1 1 2 2 2 2 2 2
02-12-2024 6 2 2 1 0 2 2 2 2
03-12-2024 10 3 2 3 2 2 3 2 2
04-12-2024 5 1 1 1 1 2 2 2 2
05-12-2024 2 2 1 1 1

High Latitude

Date A K-indices
06-11-2024 24 3 2 6 5 4 2 1 1
07-11-2024 11 1 1 3 5 2 2 1 1
08-11-2024 7 1 1 1 3 2 0 3 2
09-11-2024 48 2 3 4 6 6 6 6 3
10-11-2024 35 4 2 3 5 6 5 5 2
11-11-2024 23 1 1 6 5 4 3 2 1
12-11-2024 5 0 1 3 1 1 3 1 0
13-11-2024 13 1 1 0 4 5 3 2 1
14-11-2024 14 0 2 1 3 4 4 3 3
15-11-2024 22 2 3 4 4 4 5 3 2
16-11-2024 9 3 2 4 3 2 1 0 0
17-11-2024 14 0 1 2 5 5 1 1 0
18-11-2024 2 0 1 0 1 1 2 0 0
19-11-2024 21 0 0 2 3 6 5 3 1
20-11-2024 11 0 2 4 4 3 2 1 0
21-11-2024 7 0 1 3 3 1 1 1 3
22-11-2024 19 2 1 0 3 5 5 3 3
23-11-2024 11 1 1 2 4 4 2 2 1
24-11-2024 3 0 1 0 0 0 1 2 2
25-11-2024 17 3 2 1 5 4 4 1 1
26-11-2024 2 1 1 0 1 2 1 0 0
27-11-2024 2 0 0 0 2 1 0 0 1
28-11-2024 1 1 1 0 0 0 0 1 0
29-11-2024 0 1 0 4 1 1
30-11-2024 5 3 3 2 0 1 0 0 1
01-12-2024 5 0 0 2 4 0 0 1 1
02-12-2024 2 0 0 0 0 2 0 1 1
03-12-2024 21 2 2 5 5 3 3 4 1
04-12-2024 8 1 0 1 4 3 1 1 2
05-12-2024 1 1 0 3 1

About

The K-index quantifies disturbances in the horizontal component of earth's magnetic field with an integer in the range 0–9 with 1 being calm and 5 or more indicating a geomagnetic storm. It is derived from the maximum fluctuations of horizontal components observed on a magnetometer during a three-hour interval. The label K comes from the German word Kennziffer meaning “characteristic digit”. The K-index was introduced by Julius Bartels in 1938.

The Estimated 3-hour Planetary Kp-index is derived at the NOAA Space Weather Prediction Center using data from the following ground-based magnetometers:

  • Sitka, Alaska
  • Meanook, Canada
  • Ottawa, Canada
  • Fredericksburg, Virginia
  • Hartland, UK
  • Wingst, Germany
  • Niemegk, Germany
  • Canberra, Australia

These data are made available thanks to the cooperative efforts between SWPC and data providers around the world, which currently includes the U.S. Geological Survey, Natural Resources Canada (NRCAN), the British Geological Survey, the German Research Centre for Geosciences (GFZ), and Geoscience Australia. Important magnetometer observations are also contributed by the Institut de Physique du Globe de Paris and the Korean Space Weather Center K-index Watches are issued when the highest predicted NOAA estimated Kp-indices for a day are K = 5, 6, 7, or >= 8 and is reported in terms of the NOAA G scale. K-index Warnings are issued when NOAA estimated Kp-indices of 4, 5, 6, and 7 or greater are expected. K-index Alerts are issued when the NOAA estimated Kp-indices reach 4, 5, 6, 7, 8, or 9.


More info
Source de données: NOAA, Wikipedia

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