Joint USAF/NOAA Report of Solar and Geophysical Activity 23 Jun 2009

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Jun 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 174 Issued at 2200Z on 23 Jun 2009
IA. Analysis of Solar Active Regions and Activity from 22/2100Z
to 23/2100Z: Solar activity was very low. No flares occurred during
the past 24 hours. Region 1023 (S25E15) was the only spotted group
on the disk and was stable and quiet.
IB. Solar Activity Forecast: Solar activity is expected to be very
low for the next three days (24-26 June).
IIA. Geophysical Activity Summary 22/2100Z to 23/2100Z:
The geomagnetic field was quiet during the past 24 hours.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be mostly quiet with a chance for unsettled levels for
the first day (24 June) due to possible coronal hole effects.
Activity levels are expected to be quiet for the second and third
days (25-26 June).
III. Event Probabilities 24 Jun-26 Jun
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 23 Jun 068
Predicted 24 Jun-26 Jun 068/068/068
90 Day Mean 23 Jun 070
V. Geomagnetic A Indices
Observed Afr/Ap 22 Jun 002/003
Estimated Afr/Ap 23 Jun 002/004
Predicted Afr/Ap 24 Jun-26 Jun 007/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 24 Jun-26 Jun
A. Middle Latitudes
Active 15/10/10
Minor storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 20/10/10
Minor storm 10/05/05
Major-severe storm 01/01/01