Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 30 May 2009

By SpaceRef Editor
May 31, 2009
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 May 30 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 150 Issued at 2200Z on 30 May 2009
IA. Analysis of Solar Active Regions and Activity from 29/2100Z
to 30/2100Z: Solar activity was very low. No flares were observed
during the past 24 hours. The visible disk remained spotless. A
slow-moving CME from the west limb was observed on LASCO C2 imagery
at 29/1530Z.
IB. Solar Activity Forecast: Solar activity is expected to be very
IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z:
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet for the next three days (31 May – 2 Jun). The
CME observed on 29 May does not appear to be geoeffective.
III. Event Probabilities 31 May-02 Jun
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 30 May 069
Predicted 31 May-02 Jun 070/070/070
90 Day Mean 30 May 069
V. Geomagnetic A Indices
Observed Afr/Ap 29 May 004/005
Estimated Afr/Ap 30 May 003/005
Predicted Afr/Ap 31 May-02 Jun 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 31 May-02 Jun
A. Middle Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 05/05/10
Minor storm 01/01/01
Major-severe storm 01/01/01

SpaceRef staff editor.