:Product: 1028RSGA.txt
:Issued: 2006 Oct 28 2204 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment 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 2006
IA.  Analysis of Solar Active Regions and Activity from  27/2100Z
to 28/2100Z:  Solar activity was very low. New Region 920 (S07W82)
was numbered today.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 27/2100Z to 28/2100Z:
The geomagnetic field was quiet to active due to a geoeffective
coronal hole high speed stream. Solar wind speed at ACE increased
from approximately 310 km/s to 540 km/s.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to active with isolated minor storm periods
possible at high latitudes on 29 October due to the continued
effects from a coronal hole high speed stream. Quiet to unsettled
conditions are expected on 30 and 31 October.
III.  Event Probabilities 29 Oct-31 Oct
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           28 Oct 075
Predicted   29 Oct-31 Oct  075/070/070
90 Day Mean        28 Oct 077
V.  Geomagnetic A Indices
Observed Afr/Ap 27 Oct  003/002
Estimated Afr/Ap 28 Oct  010/015
Predicted Afr/Ap 29 Oct-31 Oct  008/010-004/005-002/005
VI.  Geomagnetic Activity Probabilities 29 Oct-31 Oct
A.  Middle Latitudes
Active                20/15/10
Minor storm           10/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                30/20/15
Minor storm           15/10/05
Major-severe storm    05/01/01