:Product: 1031RSGA.txt
:Issued: 2008 Oct 31 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 305 Issued at 2200Z on 31 Oct 2008
IA.  Analysis of Solar Active Regions and Activity from  30/2100Z
to 31/2100Z:  Solar activity was very low. No flares were observed.
New-cycle polarity Region 1007 (N34E04) was simply structured and
stable.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 30/2100Z to 31/2100Z:
Geomagnetic field activity was at quiet to unsettled levels. ACE
solar wind measurements indicated a subsiding recurrent coronal hole
high-speed stream. Solar wind velocities gradually decreased from
729 to 567 km/sec during the period. The greater than 2 MeV electron
flux at geosynchronous orbit reached high levels during the period.
IIB.  Geophysical Activity Forecast:  Geomagnetic field activity is
expected to be at mostly quiet levels through the period (01 - 03
November).
III.  Event Probabilities 01 Nov-03 Nov
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           31 Oct 068
Predicted   01 Nov-03 Nov  069/069/069
90 Day Mean        31 Oct 067
V.  Geomagnetic A Indices
Observed Afr/Ap 30 Oct  011/011
Estimated Afr/Ap 31 Oct  005/008
Predicted Afr/Ap 01 Nov-03 Nov  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 01 Nov-03 Nov
A.  Middle Latitudes
Active                15/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/10/10
Minor storm           05/01/01
Major-severe storm    01/01/01