:Product: 0424RSGA.txt
:Issued: 2020 Apr 24 2200 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Weather Prediction Center and the U.S. Air Force.
#
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 115 Issued at 2200Z on 24 Apr 2020

IA.  Analysis of Solar Active Regions and Activity from 23/2100Z to
24/2100Z: 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 (25 Apr, 26 Apr, 27 Apr).

IIA.  Geophysical Activity Summary 23/2100Z to 24/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 405 km/s at 24/0238Z. Total IMF reached 8
nT at 24/1618Z. The maximum southward component of Bz reached -7 nT at
24/1644Z.  Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 422 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on days one, two, and three (25 Apr, 26 Apr, 27
Apr).

III.  Event probabilities 25 Apr-27 Apr
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           24 Apr 071
Predicted   25 Apr-27 Apr 071/071/071
90 Day Mean        24 Apr 071

V.  Geomagnetic A Indices
Observed Afr/Ap 23 Apr  004/005
Estimated Afr/Ap 24 Apr  006/006
Predicted Afr/Ap 25 Apr-27 Apr  005/005-005/005-005/005

VI.  Geomagnetic Activity Probabilities 25 Apr-27 Apr
A.  Middle Latitudes
Active                10/10/10
Minor Storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           20/20/20
Major-severe storm    10/10/10