:Product: 19971006RSGA.txt :Issued: 1997 Oct 06 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 279 ISSUED AT 2200Z ON 06 OCT 1997 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 05/2100Z TO 06/2100Z: SOLAR ACTIVITY HAS BEEN VERY LOW WITH JUST MINOR ISOLATED LOW FREQUENCY SWEEPS AND BURSTS. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO REMAIN VERY LOW FOR THE ENTIRE PERIOD. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 05/2100Z TO 06/2100Z: THE GEOMAGNETIC FIELD WAS QUIET AT ALL LATITUDES. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOPHYSICAL FIELD IS EXPECTED TO BE QUIET TO UNSETTLED FOR THE ENTIRE PERIOD DUE TO FAVORABLE POSITIONING OF AN EXTENSION OF THE NORTHERN POLAR CORONAL HOLE. III. EVENT PROBABILITIES 07 OCT-09 OCT CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 06 OCT 084 PREDICTED 07 OCT-09 OCT 084/084/086 90 DAY MEAN 06 OCT 084 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 05 OCT 002/002 ESTIMATED AFR/AP 06 OCT 003/003 PREDICTED AFR/AP 07 OCT-09 OCT 015/020-015/015-010/010 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 07 OCT-09 OCT A. MIDDLE LATITUDES ACTIVE 20/15/10 MINOR STORM 10/10/05 MAJOR-SEVERE STORM 05/05/01 B. HIGH LATITUDES ACTIVE 25/20/10 MINOR STORM 15/15/05 MAJOR-SEVERE STORM 05/05/01