Report of Solar-Geophysical Activity

Issued: 2007 Jul 25 2200 UTC

Prepared jointly by the U.S. Dept. of Commerce, NOAA,

Space Environment Center and the U.S. Air Force.

 

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 207 Issued at 2200Z on 26 Jul 2007

IA. Analysis of Solar Active Regions and Activity from 25/2100Z
to 26/2100Z: Solar activity was very low.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z:
The geomagnetic field ranged from quiet to minor storm.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet to unsettled.
III. Event Probabilities 27 Jul-29 Jul
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 26 Jul 068
Predicted 27 Jul-29 Jul 070/070/070
90 Day Mean 26 Jul 074
V. Geomagnetic A Indices
Observed Afr/Ap 25 Jul 002/002
Estimated Afr/Ap 26 Jul 010/015
Predicted Afr/Ap 27 Jul-29 Jul 010/015-005/005-005/005
VI. Geomagnetic Activity Probabilities 27 Jul-29 Jul
A. Middle Latitudes
Active 10/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 10/10/10
Minor storm 05/05/05
Major-severe storm 01/01/01