Joint USAF/NOAA Report of Solar and Geophysical Activity 7 May 2009

Product: Report of Solar-Geophysical Activity
Issued: 2009 May 07 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 127 Issued at 2200Z on 07 May 2009

IA. Analysis of Solar Active Regions and Activity from 06/2100Z
to 07/2100Z: Solar activity was very low. No flares were detected.
The visible disk was spotless.

IB. Solar Activity Forecast: Solar activity is expected to be very
low.

IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z:
Geomagnetic field activity was predominately quiet to unsettled. An
isolated active period was observed at high latitudes between
0300-0600Z.

IIB. Geophysical Activity Forecast: Geomagnetic field activity is
expected to be predominately quiet for the next three days (08 – 10
May).

III. Event Probabilities 08 May-10 May
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green

IV. Penticton 10.7 cm Flux
Observed 07 May 070
Predicted 08 May-10 May 070/070/070
90 Day Mean 07 May 070

V. Geomagnetic A Indices
Observed Afr/Ap 06 May 006/006
Estimated Afr/Ap 07 May 008/008
Predicted Afr/Ap 08 May-10 May 005/008-005/008-005/005

VI. Geomagnetic Activity Probabilities 08 May-10 May
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 05/05/01
Major-severe storm 01/01/01