:Product: 0323RSGA.txt
:Issued: 2020 Mar 24 0055 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 83 Issued at 2200Z on 23 Mar 2020

IA.  Analysis of Solar Active Regions and Activity from 22/2100Z to
23/2100Z: 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 (24 Mar, 25 Mar, 26 Mar).

IIA.  Geophysical Activity Summary 22/2100Z to 23/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 522 km/s at 23/1621Z. Total IMF reached 6
nT at 22/0012Z. The maximum southward component of Bz reached -5 nT at
23/0142Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1,230 pfu.

IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on day one (24 Mar) and quiet levels
on days two and three (25 Mar, 26 Mar).

III.  Event probabilities 23 Mar-25 Mar
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           23 Mar 070
Predicted   24 Mar-26 Mar 070/070/070
90 Day Mean        23 Mar 071

V.  Geomagnetic A Indices
Observed Afr/Ap 22 Mar  005/009
Estimated Afr/Ap 23 Mar  012/014
Predicted Afr/Ap 24 Mar-26 Mar  008/008-006/005-006/005

VI.  Geomagnetic Activity Probabilities 24 Mar-26 Mar
A.  Middle Latitudes
Active                20/10/10
Minor Storm           05/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                25/15/15
Minor Storm           20/10/10
Major-severe storm    10/05/05