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

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Oct 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 300 Issued at 2200Z on 27 Oct 2009
IA. Analysis of Solar Active Regions and Activity from 26/2100Z
to 27/2100Z: Solar activity was low. Region 1029 (N15W45) produced
several C-class events, the largest being a C 1.7 at 0924Z.
IB. Solar Activity Forecast: Solar activity is expected to be low.
C-class events are expected from Region 1029.
IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z:
Geomagnetic field activity was quiet.
IIB. Geophysical Activity Forecast: Geomagnetic field activity is
expected to be quiet.
III. Event Probabilities 28 Oct-30 Oct
Class M 05/05/05
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 27 Oct 082
Predicted 28 Oct-30 Oct 082/082/078
90 Day Mean 27 Oct 069
V. Geomagnetic A Indices
Observed Afr/Ap 26 Oct 003/003
Estimated Afr/Ap 27 Oct 005/005
Predicted Afr/Ap 28 Oct-30 Oct 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 28 Oct-30 Oct
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