Report of Solar-Geophysical Activity
Issued: 2005 Oct 26 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 299 Issued at 2200Z on 26 Oct 2005 IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: Solar activity was at very low levels. No sunspots were reported on the visible disk. No new regions were numbered today.
IB. Solar Activity Forecast: Solar activity is expected to be at very low levels.
IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z:
The geomagnetic field was at quiet to active levels. Solar wind speed is elevated at approximately 530 km/s due to a geoeffective coronal hole high speed wind stream.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels. Isolated active conditions are possible due to the ongoing effects of a coronal hole high speed stream.
III. Event Probabilities 27 Oct-29 Oct
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 26 Oct 072
Predicted 27 Oct-29 Oct 070/075/075
90 Day Mean 26 Oct 087
V. Geomagnetic A Indices
Observed Afr/Ap 25 Oct 017/019
Estimated Afr/Ap 26 Oct 010/010
Predicted Afr/Ap 27 Oct-29 Oct 010/012-010/015-010/015 VI. Geomagnetic Activity Probabilities 27 Oct-29 Oct A. Middle Latitudes
Active 25/25/25
Minor storm 15/15/15
Major-severe storm 05/05/05
B. High Latitudes
Active 30/35/35
Minor storm 20/20/20
Major-severe storm 05/05/05