:Product: 0902RSGA.txt
:Issued: 2018 Sep 02 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 245 Issued at 2200Z on 02 Sep 2018

IA.  Analysis of Solar Active Regions and Activity from 01/2100Z to
02/2100Z: 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 (03 Sep, 04 Sep, 05 Sep).

IIA.  Geophysical Activity Summary 01/2100Z to 02/2100Z: The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 384 km/s at 02/1358Z. Total IMF reached 5 nT at
02/1457Z. The maximum southward component of Bz reached -4 nT at
02/1621Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 19396 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on day one (03 Sep) and quiet levels
on days two and three (04 Sep, 05 Sep).

III.  Event probabilities 03 Sep-05 Sep
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           02 Sep 068
Predicted   03 Sep-05 Sep 068/068/070
90 Day Mean        02 Sep 070

V.  Geomagnetic A Indices
Observed Afr/Ap 01 Sep  005/003
Estimated Afr/Ap 02 Sep  006/006
Predicted Afr/Ap 03 Sep-05 Sep  008/008-006/005-006/005

VI.  Geomagnetic Activity Probabilities 03 Sep-05 Sep
A.  Middle Latitudes
Active                20/15/10
Minor Storm           05/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           25/25/20
Major-severe storm    25/20/15