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Solar activity report
Report of Solar-Geophysical Activity 2020 Aug 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 222 Issued at 2200Z on 09 Aug 2020IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 1 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 (10
Aug, 11 Aug, 12 Aug).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 461 km/s at 09/1706Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 2502 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (10 Aug, 11 Aug, 12
Aug).
III. Event Probabilities 10 Aug to 12 Aug
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Aug 074 Predicted 10 Aug-12 Aug 075/075/075 90 Day Mean 09 Aug 070
V. Geomagnetic A Indices
Observed Afr/Ap 08 Aug 005/005 Estimated Afr/Ap 09 Aug 003/005 Predicted Afr/Ap 10 Aug-12 Aug 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 10 Aug to 12 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 10% | 10% | 10% |
All times in UTC
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