Joint USAF/NOAA Report of Solar and Geophysical Activity 28 October 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Oct 28 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 301 Issued at 2200Z on 28 Oct 2010
IA. Analysis of Solar Active Regions and Activity from 27/2100Z
to 28/2100Z: Solar activity was very low during the past 24 hours.
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 (N22W41).
IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z:
The geomagnetic field was quiet. The greater than 2 MeV electron
flux at geosynchronous orbit reached high levels during the period.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet on day 1 (29 Oct). Quiet to unsettled
conditions are expected on day 2 (30 Oct) due to a weak CME observed
on 26 October. Quiet conditions are expected to return on day 3 (31
Oct).
III. Event Probabilities 29 Oct-31 Oct
Class M 10/10/10
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 28 Oct 086
Predicted 29 Oct-31 Oct 085/085/085
90 Day Mean 28 Oct 081
V. Geomagnetic A Indices
Observed Afr/Ap 27 Oct 003/004
Estimated Afr/Ap 28 Oct 002/005
Predicted Afr/Ap 29 Oct-31 Oct 005/005-007/008-005/005
VI. Geomagnetic Activity Probabilities 29 Oct-31 Oct
A. Middle Latitudes
Active 05/10/05
Minor storm 01/05/01
Major-severe storm 01/01/01
B. High Latitudes
Active 05/15/05
Minor storm 01/05/01
Major-severe storm 01/01/01