Joint USAF/NOAA Report of Solar and Geophysical Activity 04 Aug 2008

Product: Report of Solar-Geophysical Activity
Issued: 2008 Aug 04 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 217 Issued at 2200Z on 04 Aug 2008

IA. Analysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: Solar activity was very low. No flares were observed during the past 24 hours. The solar disk is spotless.

IB. Solar Activity Forecast: Solar activity is expected to be very low.

IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z: The geomagnetic field was mostly quiet.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet on days one and two (5-6 July) and quiet to unsettled on day three (7 July).

III. Event Probabilities 05 Aug-07 Aug

• Class M 01/01/01
• Class X 01/01/01
• Proton 01/01/01
• PCAF Green

IV. Penticton 10.7 cm Flux

• Observed 04 Aug 066
• Predicted 05 Aug-07 Aug 066/066/066
• 90 Day Mean 04 Aug 067

V. Geomagnetic A Indices

• Observed Afr/Ap 03 Aug 003/004
• Estimated Afr/Ap 04 Aug 005/005
• Predicted Afr/Ap 05 Aug-07 Aug 005/005-005/005-007/008

VI. Geomagnetic Activity Probabilities 05 Aug-07 Aug

A. Middle Latitudes

• Active 01/01/10
• Minor storm 01/01/01
• Major-severe storm 01/01/01

B. High Latitudes

• Active 01/01/15
• Minor storm 01/01/01
• Major-severe storm 01/01/01