Joint USAF/NOAA Report of Solar and Geophysical Activity 27 October 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 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 2010
IA. Analysis of Solar Active Regions and Activity from 26/2100Z
to 27/2100Z: Solar activity was at low levels. Region 1117 (N22W28)
produced a C1.2/Sf at 27/1703Z. The remaining regions were quiet and
unchanged.
IB. Solar Activity Forecast: Solar activity is expected to be very
low to low with a slight chance for an M-class event from Region
1117.
IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z:
The geomagnetic field was at quiet levels for the past 24 hours.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet on day one (28 October). Quiet to unsettled
levels, with isolated active periods, are expected on days two and
three (29-30 October) in response to the CME observed on 26 October.
III. Event Probabilities 28 Oct-30 Oct
Class M 10/10/10
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 27 Oct 088
Predicted 28 Oct-30 Oct 084/084/084
90 Day Mean 27 Oct 081
V. Geomagnetic A Indices
Observed Afr/Ap 26 Oct 006/008
Estimated Afr/Ap 27 Oct 005/005
Predicted Afr/Ap 28 Oct-30 Oct 005/005-008/008-008/008
VI. Geomagnetic Activity Probabilities 28 Oct-30 Oct
A. Middle Latitudes
Active 10/15/15
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 10/20/20
Minor storm 01/01/01
Major-severe storm 01/01/01