Report of Solar-Geophysical Activity

Report of Solar-Geophysical Activity
Issued: 2009 Mar 23 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 082 Issued at 2200Z on 23 Mar 2009

IA. Analysis of Solar Active Regions and Activity from 22/2100Z
to 23/2100Z: Solar activity was very low. No flares were observed
during the past 24 hours.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 22/2100Z to 23/2100Z:
The geomagnetic field was quiet. Solar wind velocities at ACE ranged
from 361-438 km/s, while the IMF Bz ranged between -3 nT and +7 nT.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be predominantly quiet for the next three days (24-26
March).
III. Event Probabilities 24 Mar-26 Mar
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 23 Mar 068
Predicted 24 Mar-26 Mar 070/070/070
90 Day Mean 23 Mar 070
V. Geomagnetic A Indices
Observed Afr/Ap 22 Mar 004/004
Estimated Afr/Ap 23 Mar 003/005
Predicted Afr/Ap 24 Mar-26 Mar 005/005-005/005-006/008
VI. Geomagnetic Activity Probabilities 24 Mar-26 Mar
A. Middle Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 15/10/15
Minor storm 05/01/05
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