Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 05 Sep 2009

By SpaceRef Editor
September 5, 2009
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Sep 05 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 248 Issued at 2200Z on 05 Sep 2009
IA. Analysis of Solar Active Regions and Activity from 04/2100Z
to 05/2100Z: Solar activity was very low. No flares were observed.
The visible disk remained spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z:
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet on days one and two (06-07 September). Quiet to
unsettled levels, with isolated active periods at high latitudes,
are expected on day three (08 September), as a coronal hole
high-speed stream is expected to rotate into a geoeffective
position.
III. Event Probabilities 06 Sep-08 Sep
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 05 Sep 069
Predicted 06 Sep-08 Sep 068/068/068
90 Day Mean 05 Sep 068
V. Geomagnetic A Indices
Observed Afr/Ap 04 Sep 004/005
Estimated Afr/Ap 05 Sep 003/005
Predicted Afr/Ap 06 Sep-08 Sep 005/005-005/005-007/008
VI. Geomagnetic Activity Probabilities 06 Sep-08 Sep
A. Middle Latitudes
Active 05/05/20
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 05/05/25
Minor storm 01/01/05
Major-severe storm 01/01/01

SpaceRef staff editor.