:Product: 1028RSGA.txt
:Issued: 2010 Oct 28 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 Report of Solar and Geophysical Activity
SDF Number 301 Issued at 2200Z on 28 Oct 2010
IA.  Analysis of Solar Active Regions and Activity from  27/2100Z
to 28/2100Z:  Solar activity was very low during the past 24 hours.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low to low with a slight chance for an M-class event from Region
1117 (N22W41).
IIA.  Geophysical Activity Summary 27/2100Z to 28/2100Z:
The geomagnetic field was quiet.  The greater than 2 MeV electron
flux at geosynchronous orbit reached high levels during the period.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet on day 1 (29 Oct).  Quiet to unsettled
conditions are expected on day 2 (30 Oct) due to a weak CME observed
on 26 October.  Quiet conditions are expected to return on day 3 (31
Oct).
III.  Event Probabilities 29 Oct-31 Oct
Class M    10/10/10
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           28 Oct 086
Predicted   29 Oct-31 Oct  085/085/085
90 Day Mean        28 Oct 081
V.  Geomagnetic A Indices
Observed Afr/Ap 27 Oct  003/004
Estimated Afr/Ap 28 Oct  002/005
Predicted Afr/Ap 29 Oct-31 Oct  005/005-007/008-005/005
VI.  Geomagnetic Activity Probabilities 29 Oct-31 Oct
A.  Middle Latitudes
Active                05/10/05
Minor storm           01/05/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                05/15/05
Minor storm           01/05/01
Major-severe storm    01/01/01