Joint USAF/NOAA Report of Solar and Geophysical Activity 08 Nov 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Nov 08 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 312 Issued at 2200Z on 08 Nov 2007

IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity was very low. No flares were observed during the past 24 hours and the solar disk continues to be spotless.

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

IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field was quiet during the past 24 hours. Solar wind observations from ACE show a small increase in velocity, consistent with a favorably positioned coronal hole. However, the change in the solar wind has not been sufficient to increase activity levels above quiet.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the next three days (09-11 November).

III. Event Probabilities 09 Nov-11 Nov

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

IV. Penticton 10.7 cm Flux

• Observed 08 Nov 070
• Predicted 09 Nov-11 Nov 068/068/068
• 90 Day Mean 08 Nov 068

V. Geomagnetic A Indices

• Observed Afr/Ap 07 Nov 000/001
• Estimated Afr/Ap 08 Nov 003/005
• Predicted Afr/Ap 09 Nov-11 Nov 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 09 Nov-11 Nov

A. Middle Latitudes

• Active 05/05/05
• 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