Joint USAF/NOAA Report of Solar and Geophysical Activity 27 May 2009

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 May 27 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 147 Issued at 2200Z on 27 May 2009

IA. Analysis of Solar Active Regions and Activity from 26/2100Z
to 27/2100Z: Solar activity was very low. No flares occurred during
the past 24 hours. The solar disk continues to be void of sunspots.

IB. Solar Activity Forecast: Solar activity is expected to be very
low for the next three days (28-30 May).

IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z:
The geomagnetic field was quiet during the past 24 hours.

IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet for the next three days (28-30 May).

III. Event Probabilities 28 May-30 May
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green

IV. Penticton 10.7 cm Flux
Observed 27 May 067
Predicted 28 May-30 May 068/068/068
90 Day Mean 27 May 070

V. Geomagnetic A Indices
Observed Afr/Ap 26 May 002/004
Estimated Afr/Ap 27 May 003/003
Predicted Afr/Ap 28 May-30 May 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 28 May-30 May

A. Middle Latitudes
Active 10/10/05
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