Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 9 Jul 2009

By SpaceRef Editor
July 10, 2009
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Jul 09 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 190 Issued at 2200Z on 09 Jul 2009
IA. Analysis of Solar Active Regions and Activity from 08/2100Z
to 09/2100Z: Solar activity was very low. No flares occurred during
the past 24 hours. Region 1024 (S09W65) was quiet and stable as it
approached the west limb.
IB. Solar Activity Forecast: Solar activity is expected to be very
IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z:
The geomagnetic field was mostly quiet. Solar wind started to
increase at approximately 1700Z due to coronal hole effects. This
resulted in an unsettled period for 1800Z to 2100Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected be quiet on day one (10 July). Day two (11 July) is
expected to be quiet to unsettled due to possible coronal hole
effects. Day three (12 July) is expected to be quiet.
III. Event Probabilities 10 Jul-12 Jul
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 09 Jul 069
Predicted 10 Jul-12 Jul 069/069/068
90 Day Mean 09 Jul 070
V. Geomagnetic A Indices
Observed Afr/Ap 08 Jul 003/006
Estimated Afr/Ap 09 Jul 005/005
Predicted Afr/Ap 10 Jul-12 Jul 005/005-007/008-005/005
VI. Geomagnetic Activity Probabilities 10 Jul-12 Jul
A. Middle Latitudes
Active 05/10/05
Minor storm 01/05/01
Major-severe storm 01/01/01
B. High Latitudes
Active 10/15/10
Minor storm 05/10/05
Major-severe storm 01/01/01

SpaceRef staff editor.