:Product: 0213RSGA.txt
:Issued: 2021 Feb 13 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 44 Issued at 2200Z on 13 Feb 2021

IA.  Analysis of Solar Active Regions and Activity from 12/2100Z to
13/2100Z: 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 (14 Feb, 15 Feb, 16 Feb).

IIA.  Geophysical Activity Summary 12/2100Z to 13/2100Z: The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 551 km/s at 13/0721Z. Total IMF reached 14
nT at 13/0216Z. The maximum southward component of Bz reached -13 nT at
13/0216Z.  Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 198 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to active levels on day one (14 Feb) and quiet to
unsettled levels on days two and three (15 Feb, 16 Feb).

III.  Event probabilities 14 Feb-16 Feb
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           13 Feb 071
Predicted   14 Feb-16 Feb 071/071/071
90 Day Mean        13 Feb 082

V.  Geomagnetic A Indices
Observed Afr/Ap 12 Feb  004/003
Estimated Afr/Ap 13 Feb  011/015
Predicted Afr/Ap 14 Feb-16 Feb  009/012-007/010-007/008

VI.  Geomagnetic Activity Probabilities 14 Feb-16 Feb
A.  Middle Latitudes
Active                25/20/15
Minor Storm           05/05/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/20
Minor Storm           25/30/30
Major-severe storm    30/25/25