:Product: 0227RSGA.txt
:Issued: 2008 Feb 27 2203 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 058 Issued at 2200Z on 27 Feb 2008
IA.  Analysis of Solar Active Regions and Activity from  26/2100Z
to 27/2100Z:  Solar activity was very low.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 26/2100Z to 27/2100Z:
The geomagnetic field was quiet to unsettled.  Solar wind
measurements at the ACE spacecraft indicated signatures consistent
with a co-rotating interaction region around 27/1400Z.  The greater
than 2 MeV electron flux at geosynchronous orbit reached high levels
today.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at unsettled to active conditions with isolated minor
storm levels at high latitudes for 28-29 February due to a coronal
hole high speed stream.  Predominately unsettled conditions are
expected for 01 March.
III.  Event Probabilities 28 Feb-01 Mar
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           27 Feb 071
Predicted   28 Feb-01 Mar  070/070/070
90 Day Mean        27 Feb 075
V.  Geomagnetic A Indices
Observed Afr/Ap 26 Feb  002/003
Estimated Afr/Ap 27 Feb  008/010
Predicted Afr/Ap 28 Feb-01 Mar  015/015-012/015-010/010
VI.  Geomagnetic Activity Probabilities 28 Feb-01 Mar
A.  Middle Latitudes
Active                25/20/15
Minor storm           10/05/05
Major-severe storm    05/01/01
B.  High Latitudes
Active                30/30/20
Minor storm           15/15/10
Major-severe storm    05/05/05