Joint USAF/NOAA Report of Solar and Geophysical Activity 31 Oct 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Oct 31 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 304 Issued at 2200Z on 31 Oct 2007

IA. Analysis of Solar Active Regions and Activity from 30/2100Z to 31/2100Z: Solar activity was very low. No flares were detected. The visible disk was spotless.

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

IIA. Geophysical Activity Summary 30/2100Z to 31/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during the period.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet through the forecast period.

III. Event Probabilities 01 Nov-03 Nov

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

IV. Penticton 10.7 cm Flux

• Observed 31 Oct 067
• Predicted 01 Nov-03 Nov 067/067/067
• 90 Day Mean 31 Oct 068

V. Geomagnetic A Indices O

• bserved Afr/Ap 30 Oct 010/010
• Estimated Afr/Ap 31 Oct 003/008
• Predicted Afr/Ap 01 Nov-03 Nov 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 01 Nov-03 Nov

A. Middle Latitudes

• Active 10/05/05
• Minor storm 01/01/01
• Major-severe storm 01/01/01

B. High Latitudes

• Active 15/05/05
• Minor storm 01/01/01
• Major-severe storm 01/01/01