Joint USAF/NOAA Report of Solar and Geophysical Activity 24 Nov 2005

Product: Report of Solar-Geophysical Activity
Issued: 2005 Nov 24 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 328 Issued at 2200Z on 24 Nov 2005

IA. Analysis of Solar Active Regions and Activity from 23/2100Z to 24/2100Z: Solar activity was at very low levels. Regions 822 (S09W81) and 824 (S13E19) have remained quiescent. No new regions were numbered today.

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

IIA. Geophysical Activity Summary 23/2100Z to 24/2100Z: The geomagnetic field was at quiet to active levels. Solar wind speed is slightly elevated at about 475 km/s.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels.

III. Event Probabilities 25 Nov-27 Nov

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

IV. Penticton 10.7 cm Flux

• Observed 24 Nov 087
• Predicted 25 Nov-27 Nov 085/080/080
• 90 Day Mean 24 Nov 085

V. Geomagnetic A Indices

• Observed Afr/Ap 23 Nov 007/008
• Estimated Afr/Ap 24 Nov 006/007
• Predicted Afr/Ap 25 Nov-27 Nov 005/005-005/005-008/012

VI. Geomagnetic Activity Probabilities 25 Nov-27 Nov

A. Middle Latitudes

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

B. High Latitudes

• Active 25/25/30
• Minor storm 10/10/15
• Major-severe storm 01/01/05