Joint USAF/NOAA Report of Solar and Geophysical Activity 22 May 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 May 22 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 142 Issued at 2200Z on 22 May 2010
IA. Analysis of Solar Active Regions and Activity from 21/2100Z
to 22/2100Z: Solar activity was very low. Region 1072 (S16E08) has
grown in both white light areal coverage and sunspot count and
remains a beta magnetic configuration. No x-ray flares were
observed during the period.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z:
The geomagnetic field was quiet. Solar wind velocity observed from
the ACE spacecraft show speeds averaging around 370 km/s.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at quiet levels for the next three days (23-25 May).
III. Event Probabilities 23 May-25 May
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 22 May 073
Predicted 23 May-25 May 074/075/075
90 Day Mean 22 May 078
V. Geomagnetic A Indices
Observed Afr/Ap 21 May 004/005
Estimated Afr/Ap 22 May 002/005
Predicted Afr/Ap 23 May-25 May 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 23 May-25 May
A. Middle Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01