Viewing archive of Wednesday, 19 August 2020

Solar activity report

Report of Solar-Geophysical Activity 2020 Aug 19 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 232 Issued at 2200Z on 19 Aug 2020

IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z

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 (20 Aug, 21 Aug, 22 Aug).
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 381 km/s at 19/0357Z. Total IMF reached 8 nT at 18/2122Z. The maximum southward component of Bz reached -8 nT at 18/2127Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 162 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on day one (20 Aug), quiet to unsettled levels on day two (21 Aug) and quiet levels on day three (22 Aug).
III. Event Probabilities 20 Aug to 22 Aug
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       19 Aug 071
  Predicted   20 Aug-22 Aug 070/070/070
  90 Day Mean        19 Aug 070

V. Geomagnetic A Indices
  Observed Afr/Ap 18 Aug  007/007
  Estimated     Afr/Ap 19 Aug  006/007
  Predicted    Afr/Ap 20 Aug-22 Aug  013/016-007/008-006/005

VI. Geomagnetic Activity Probabilities 20 Aug to 22 Aug
A. Middle Latitudes
Active35%25%15%
Minor storm15%10%05%
Major-severe storm01%01%01%
B. High Latitudes
Active10%15%15%
Minor storm30%30%20%
Major-severe storm50%40%20%

All times in UTC

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