Report of Solar-Geophysical Activity

Report of Solar-Geophysical Activity
Issued: 2009 Mar 26 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 085 Issued at 2200Z on 26 Mar 2009

IA. Analysis of Solar Active Regions and Activity from 25/2100Z
to 26/2100Z: Solar activity was very low. Two B-class flares were
observed: the first was a B1.8 at 26/0143Z from an unnumbered area
(N23W12), the second was a B3.5 at 26/0216Z from beyond the east
limb (based on Stereo B images).
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z:
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet to unsettled on day one (27 March). Days two
and three (28-29 March) are expected to be quiet.
III. Event Probabilities 27 Mar-29 Mar
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 26 Mar 069
Predicted 27 Mar-29 Mar 070/072/072
90 Day Mean 26 Mar 070
V. Geomagnetic A Indices
Observed Afr/Ap 25 Mar 007/010
Estimated Afr/Ap 26 Mar 007/008
Predicted Afr/Ap 27 Mar-29 Mar 007/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 27 Mar-29 Mar
A. Middle Latitudes
Active 10/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 15/10/10
Minor storm 05/01/01
Major-severe storm 01/01/01

For current space weather conditions please refer to:

http://www.sec.noaa.gov/SWN/

http://www.sec.noaa.gov/alerts/

NOAA Space Weather Scale descriptions can be found at www.sec.noaa.gov/NOAAscales