Joint USAF/NOAA Report of Solar and Geophysical Activity 25 August 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Aug 25 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 237 Issued at 2200Z on 25 Aug 2010
IA. Analysis of Solar Active Regions and Activity from 24/2100Z
to 25/2100Z: Solar activity has been at very low levels. No flares
were observed over the past 24 hours.
IB. Solar Activity Forecast: Solar activity is forecast to be very
low for the next 3 days (26-28 August).
IIA. Geophysical Activity Summary 24/2100Z to 25/2100Z:
The geomagnetic field was mostly unsettled to active with a period of
minor storming between 25/00Z and 25/06Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is
forecast to be mostly unsettled to active with a chance for an
isolated period of minor storming for the next 3 days (26-28
August).
III. Event Probabilities 26 Aug-28 Aug
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 25 Aug 074
Predicted 26 Aug-28 Aug 075/075/075
90 Day Mean 25 Aug 077
V. Geomagnetic A Indices
Observed Afr/Ap 24 Aug 013/018
Estimated Afr/Ap 25 Aug 018/020
Predicted Afr/Ap 26 Aug-28 Aug 012/015-008/010-008/008
VI. Geomagnetic Activity Probabilities 26 Aug-28 Aug
A. Middle Latitudes
Active 50/40/30
Minor storm 20/10/05
Major-severe storm 05/01/01
B. High Latitudes
Active 50/50/40
Minor storm 25/15/05
Major-severe storm 10/01/01