"Solar activity was very low. No flares were detected. The visible disk was
spotless."

Joint USAF/NOAA Report of Solar and Geophysical Activity 4 May 2009

STATUS REPORT
Date Released: Monday, May 4, 2009
Source: Space Environment Center (NOAA)

Product: Report of Solar-Geophysical Activity
Issued: 2009 May 04 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 124 Issued at 2200Z on 04 May 2009

IA. Analysis of Solar Active Regions and Activity from 03/2100Z
to 04/2100Z: 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 03/2100Z to 04/2100Z:
Geomagnetic field activity was at quiet levels.

IIB. Geophysical Activity Forecast: Geomagnetic field activity is
expected to be at quiet levels on day one (05 May). Field activity
is expected to increase to unsettled levels on days two and three
(06 - 07 May) with a chance for active levels at high latitudes due
to a recurrent coronal hole high-speed stream.

III. Event Probabilities 05 May-07 May
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green

IV. Penticton 10.7 cm Flux
Observed 04 May 068
Predicted 05 May-07 May 070/070/070
90 Day Mean 04 May 070

V. Geomagnetic A Indices
Observed Afr/Ap 03 May 002/005
Estimated Afr/Ap 04 May 005/005
Predicted Afr/Ap 05 May-07 May 005/005-010/012-007/008

VI. Geomagnetic Activity Probabilities 05 May-07 May
A. Middle Latitudes
Active 05/25/15
Minor storm 01/05/01
Major-severe storm 01/01/01
B. High Latitudes
Active 05/40/25
Minor storm 01/15/10
Major-severe storm 01/05/01