Report of Solar-Geophysical Activity
Issued: 2009 Sep 03 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 246 Issued at 2200Z on 03 Sep 2009
IA. Analysis of Solar Active Regions and Activity from
02/2100Z
to 03/2100Z: Solar activity was very low. No flares were observed
during the past 24 hours. The visible disk remained spotless. A slow
CME off the west limb was first visible on SOHO C2 imagery at
03/0254Z.
IB. Solar Activity Forecast: Solar activity is expected to
be very
low.
IIA. Geophysical Activity Summary 02/2100Z to 03/2100Z:
The geomagnetic field was quiet during the past 24 hours.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet, with isolated periods of unsettled levels, on
day 1 (04 September). Predominantly quiet levels are expected on
days 2 and 3 (05-06 September).
III. Event Probabilities 04 Sep-06 Sep
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 03
Sep 069
Predicted 04 Sep-06 Sep 069/069/069
90 Day Mean 03 Sep 068
V. Geomagnetic A Indices
Observed Afr/Ap 02 Sep 002/003
Estimated Afr/Ap 03 Sep 005/010
Predicted Afr/Ap 04 Sep-06 Sep 008/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 04 Sep-06 Sep
A. Middle Latitudes
Active
05/05/05
Minor storm
01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active
10/10/05
Minor storm
01/01/01
Major-severe storm 01/01/01
For current space weather conditions please refer to:
NOAA Space Weather Scale descriptions can be found at
www.sec.noaa.gov/NOAAscales
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