:Product: 0914RSGA.txt
:Issued: 2013 Sep 14 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 257 Issued at 2200Z on 14 Sep 2013

IA.  Analysis of Solar Active Regions and Activity from 13/2100Z to
14/2100Z: Solar activity has been at very low levels for the past 24
hours. There are currently 2 numbered sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is expected to be very low
with a slight chance for a C-class flare on days one, two, and three (15
Sep, 16 Sep, 17 Sep).

IIA.  Geophysical Activity Summary 13/2100Z to 14/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
609 km/s at 14/0604Z. Total IMF reached 7 nT at 13/2238Z. The maximum
southward component of Bz reached -3 nT at 14/0005Z.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on day one (15 Sep), quiet to active levels on day
two (16 Sep) and quiet to unsettled levels on day three (17 Sep).

III.  Event probabilities 15 Sep-17 Sep
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           14 Sep 093
Predicted   15 Sep-17 Sep 095/095/100
90 Day Mean        14 Sep 113

V.  Geomagnetic A Indices
Observed Afr/Ap 13 Sep  010/010
Estimated Afr/Ap 14 Sep  007/007
Predicted Afr/Ap 15 Sep-17 Sep  005/005-011/013-008/010

VI.  Geomagnetic Activity Probabilities 15 Sep-17 Sep
A.  Middle Latitudes
Active                05/35/25
Minor Storm           01/10/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/25
Minor Storm           15/35/35
Major-severe storm    05/45/25