Viewing archive of Wednesday, 26 August 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Aug 26 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 239 Issued at 2200Z on 26 Aug 2020IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z 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 (27 Aug, 28 Aug, 29 Aug).
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 486 km/s at 26/1824Z. Total IMF reached 8 nT at
26/0224Z. The maximum southward component of Bz reached -7 nT at
26/1509Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 132 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on day one (27 Aug) and quiet to unsettled levels
on days two and three (28 Aug, 29 Aug).
III. Event Probabilities 27 Aug to 29 Aug
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Aug 070 Predicted 27 Aug-29 Aug 070/070/070 90 Day Mean 26 Aug 070
V. Geomagnetic A Indices
Observed Afr/Ap 25 Aug 003/003 Estimated Afr/Ap 26 Aug 006/008 Predicted Afr/Ap 27 Aug-29 Aug 007/008-007/008-010/010
VI. Geomagnetic Activity Probabilities 27 Aug to 29 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 40% |
| Minor storm | 05% | 05% | 15% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 25% | 30% | 50% |
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