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Solar activity report
Report of Solar-Geophysical Activity 2022 Jan 21 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 21 Issued at 2200Z on 21 Jan 2022IA. Analysis of Solar Active Regions and Activity from 20-2100Z to 21-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 2 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a slight chance for a C-class flare on days one, two, and three (22
Jan, 23 Jan, 24 Jan).
IIA. Geophysical Activity Summary 20-2100Z to 21-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 503 km/s at 21/1732Z. Total IMF reached 8 nT at
21/1256Z. The maximum southward component of Bz reached -5 nT at
21/1417Z. Protons greater than 10 MeV at geosynchronous orbit reached a
peak level of 7 pfu at 20/2105Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 3999 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and two (22 Jan, 23 Jan) and
quiet to unsettled levels on day three (24 Jan).
III. Event Probabilities 22 Jan to 24 Jan
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 21 Jan 097 Predicted 22 Jan-24 Jan 095/093/089 90 Day Mean 21 Jan 097
V. Geomagnetic A Indices
Observed Afr/Ap 20 Jan 005/004 Estimated Afr/Ap 21 Jan 004/006 Predicted Afr/Ap 22 Jan-24 Jan 009/010-010/012-008/008
VI. Geomagnetic Activity Probabilities 22 Jan to 24 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 35% | 25% |
| Minor storm | 10% | 15% | 05% |
| Major-severe storm | 01% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 25% | 25% | 30% |
| Major-severe storm | 35% | 50% | 30% |
All times in UTC
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