Viewing archive of Wednesday, 2 September 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Sep 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 246 Issued at 2200Z on 02 Sep 2020IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z 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 (03 Sep, 04 Sep, 05 Sep).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 585 km/s at 01/2100Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 29370 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (03 Sep) and quiet levels
on days two and three (04 Sep, 05 Sep).
III. Event Probabilities 03 Sep to 05 Sep
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Sep 068 Predicted 03 Sep-05 Sep 070/070/070 90 Day Mean 02 Sep 070
V. Geomagnetic A Indices
Observed Afr/Ap 01 Sep 016/016 Estimated Afr/Ap 02 Sep 009/009 Predicted Afr/Ap 03 Sep-05 Sep 009/010-006/005-006/005
VI. Geomagnetic Activity Probabilities 03 Sep to 05 Sep
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 15% | 15% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 20% | 20% |
| Major-severe storm | 40% | 20% | 20% |
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