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Solar activity report

Report of Solar-Geophysical Activity 2020 May 29 2200 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 150 Issued at 2200Z on 29 May 2020

IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z

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 likely to be low with a slight chance for an M-class flare on days one, two, and three (30 May, 31 May, 01 Jun).
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 318 km/s at 29/2049Z. Total IMF reached 5 nT at 29/2057Z. The maximum southward component of Bz reached -3 nT at 29/1116Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 167 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (30 May, 31 May) and quiet levels on day three (01 Jun).
III. Event Probabilities 30 May to 01 Jun
Class M20%15%15%
Class X01%01%01%
IV. Penticton 10.7 cm Flux
  Observed       29 May 070
  Predicted   30 May-01 Jun 072/072/072
  90 Day Mean        29 May 070

V. Geomagnetic A Indices
  Observed Afr/Ap 28 May  002/002
  Estimated     Afr/Ap 29 May  003/005
  Predicted    Afr/Ap 30 May-01 Jun  008/008-009/008-006/005

VI. Geomagnetic Activity Probabilities 30 May to 01 Jun
A. Middle Latitudes
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Minor storm25%25%15%
Major-severe storm20%20%05%

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