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Solar activity report

Report of Solar-Geophysical Activity 2020 Aug 20 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 233 Issued at 2200Z on 20 Aug 2020

IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z

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 on days one, two, and three (21 Aug, 22 Aug, 23 Aug).
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 326 km/s at 20/0253Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 137 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on days one and two (21 Aug, 22 Aug) and quiet to unsettled levels on day three (23 Aug).
III. Event Probabilities 21 Aug to 23 Aug
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       20 Aug 070
  Predicted   21 Aug-23 Aug 070/070/069
  90 Day Mean        20 Aug 070

V. Geomagnetic A Indices
  Observed Afr/Ap 19 Aug  009/007
  Estimated     Afr/Ap 20 Aug  004/005
  Predicted    Afr/Ap 21 Aug-23 Aug  006/005-006/005-007/006

VI. Geomagnetic Activity Probabilities 21 Aug to 23 Aug
A. Middle Latitudes
Active10%10%10%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active20%20%15%
Minor storm20%20%25%
Major-severe storm10%10%20%

All times in UTC

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