:Product: 0907RSGA.txt
:Issued: 2013 Sep 07 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 250 Issued at 2200Z on 07 Sep 2013

IA.  Analysis of Solar Active Regions and Activity from 06/2100Z to
07/2100Z: Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
06/2250Z. There are currently 3 numbered sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is expected to be very low
with a chance for a C-class flares on days one, two, and three (08 Sep,
09 Sep, 10 Sep).

IIA.  Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 420 km/s at
06/2107Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 1006 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on day one (08 Sep) and quiet levels with a chance
for unsettled to active levels on days two and three (09 Sep, 10 Sep).

III.  Event probabilities 08 Sep-10 Sep
Class M    05/05/05
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           07 Sep 099
Predicted   08 Sep-10 Sep 095/100/105
90 Day Mean        07 Sep 114

V.  Geomagnetic A Indices
Observed Afr/Ap 06 Sep  005/004
Estimated Afr/Ap 07 Sep  005/005
Predicted Afr/Ap 08 Sep-10 Sep  006/005-007/010-009/010

VI.  Geomagnetic Activity Probabilities 08 Sep-10 Sep
A.  Middle Latitudes
Active                10/25/25
Minor Storm           01/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           15/30/30
Major-severe storm    10/30/30