Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 30 July 2010

By SpaceRef Editor
July 30, 2010
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Jul 30 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 211 Issued at 2200Z on 30 Jul 2010
IA. Analysis of Solar Active Regions and Activity from 29/2100Z
to 30/2100Z: Solar activity was very low. Region (1092) produced a
few B-class x-ray flares. The largest of these was a B9 at 30/0221Z
associated with a limb event CME visible off the northeast limb on
LASCO C3 imagery as well as STEREO A and B coronagraphs.
IB. Solar Activity Forecast: Solar activity is forecast to be very
low to low with a chance for a C-class flare for the next 3 days (31
July-02 August).
IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z:
The geomagnetic field was mostly quiet with an isolated period of
unsettled conditions between 15-18Z. The greater than 2 MeV electron
flux at geosynchronous orbit reached high levels during the past 24
IIB. Geophysical Activity Forecast: The geomagnetic field is
forecast to be mostly quiet with a few isolated periods of unsettled
conditions for the next 3 days (31 July-02 August).
III. Event Probabilities 31 Jul-02 Aug
Class M 05/05/05
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 30 Jul 085
Predicted 31 Jul-02 Aug 085/085/085
90 Day Mean 30 Jul 075
V. Geomagnetic A Indices
Observed Afr/Ap 29 Jul 005/007
Estimated Afr/Ap 30 Jul 005/007
Predicted Afr/Ap 31 Jul-02 Aug 005/006-005/006-005/006
VI. Geomagnetic Activity Probabilities 31 Jul-02 Aug
A. Middle Latitudes
Active 30/30/30
Minor storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 40/40/40
Minor storm 10/10/10
Major-severe storm 01/01/01

SpaceRef staff editor.