Viewing archive of Sunday, 11 April 2021
Solar activity report
Report of Solar-Geophysical Activity 2021 Apr 11 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 101 Issued at 2200Z on 11 Apr 2021IA. Analysis of Solar Active Regions and Activity from 10-2100Z to 11-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 10-2100Z to 11-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 12 Apr to 14 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 11 Apr 073 Predicted 12 Apr-14 Apr 072/072/072 90 Day Mean 11 Apr 076
V. Geomagnetic A Indices
Observed Afr/Ap 10 Apr 003/004 Estimated Afr/Ap 11 Apr 006/007 Predicted Afr/Ap 12 Apr-14 Apr 006/005-006/005-007/008
VI. Geomagnetic Activity Probabilities 12 Apr to 14 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 01% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 25% |
| Major-severe storm | 20% | 15% | 20% |
All times in UTC
Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future
Gillam, MB, Whitehorse, YTFairbanks, AK
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Edmonton, AB, Saskatoon, SK, Yellowknife, NTAnchorage, AK, Juneau, AK
Current data suggests there is a slight possibility for aurora to appear at the following middle latitude regions in the near future
Calgary, ABLatest news
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| Monthly mean Sunspot Number | |
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