:Product: 0909RSGA.txt
:Issued: 2019 Sep 09 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 252 Issued at 2200Z on 09 Sep 2019

IA.  Analysis of Solar Active Regions and Activity from 08/2100Z to
09/2100Z: 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 (10 Sep, 11 Sep, 12 Sep).

IIA.  Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 555 km/s at 09/1036Z. Total IMF reached 7
nT at 09/0801Z. The maximum southward component of Bz reached -6 nT at
09/0917Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 9362 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on day one (10 Sep) and quiet levels
on days two and three (11 Sep, 12 Sep).

III.  Event probabilities 10 Sep-12 Sep
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           09 Sep 069
Predicted   10 Sep-12 Sep 068/068/068
90 Day Mean        09 Sep 067

V.  Geomagnetic A Indices
Observed Afr/Ap 08 Sep  009/010
Estimated Afr/Ap 09 Sep  011/013
Predicted Afr/Ap 10 Sep-12 Sep  007/008-004/005-004/005

VI.  Geomagnetic Activity Probabilities 10 Sep-12 Sep
A.  Middle Latitudes
Active                10/05/05
Minor Storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           20/15/15
Major-severe storm    10/10/10