Viewing archive of Friday, 8 January 2021
Solar activity report
Report of Solar-Geophysical Activity 2021 Jan 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 8 Issued at 2200Z on 08 Jan 2021IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
on days one, two, and three (09 Jan, 10 Jan, 11 Jan).
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 443 km/s at 08/0005Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 207 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on day one (09 Jan) and quiet to unsettled levels
on days two and three (10 Jan, 11 Jan).
III. Event Probabilities 09 Jan to 11 Jan
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 08 Jan 075 Predicted 09 Jan-11 Jan 075/075/075 90 Day Mean 08 Jan 085
V. Geomagnetic A Indices
Observed Afr/Ap 07 Jan 004/005 Estimated Afr/Ap 08 Jan 002/004 Predicted Afr/Ap 09 Jan-11 Jan 005/005-008/008-007/008
VI. Geomagnetic Activity Probabilities 09 Jan to 11 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 01% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 25% | 25% |
| Major-severe storm | 15% | 25% | 25% |
All times in UTC
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