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

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Jul 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 208 Issued at 2200Z on 27 Jul 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 was void of sunspots.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
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 July).
III. Event Probabilities 28 Jul-30 Jul
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 27 Jul 068
Predicted 28 Jul-30 Jul 069/069/070
90 Day Mean 27 Jul 069
V. Geomagnetic A Indices
Observed Afr/Ap 26 Jul 001/003
Estimated Afr/Ap 27 Jul 004/004
Predicted Afr/Ap 28 Jul-30 Jul 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 28 Jul-30 Jul
A. Middle Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01