:Product: 19961025RSGA.txt :Issued: 1996 Oct 25 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 25 OCT 1996 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 24/2100Z TO 25/2100Z: SOLAR ACTIVITY WAS VERY LOW. NO FLARES OCCURRED. NEW REGION 7991, A THREE SPOT 'BXO' NEW CYCLE (POSITIVE LEADER / NEGATIVE TRAILER) GROUP, WAS NUMBERED TODAY. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 24/2100Z TO 25/2100Z: THE GEOMAGNETIC FIELD HAS BEEN AT QUIET TO UNSETTLED LEVELS FOR THE PAST 24 HOURS, WITH A SINGLE PERIOD OF ACTIVE CONDITIONS RECORDED AT HIGH LATITUDES DURING THE INTERVAL 25/0600-0900Z. THE GREATER THAN 2 MEV ELECTRON FLUX WAS MODERATE TO HIGH. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE UNSETTLED TO ACTIVE FOR THE NEXT THREE DAYS, WITH AN INCREASED CHANCE FOR ISOLATED PERIODS OF MINOR STORMING ON DAYS ONE AND TWO, DUE TO A FAVORABLY POSITIONED CORONAL HOLE. III. EVENT PROBABILITIES 26 OCT-28 OCT CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 25 OCT 070 PREDICTED 26 OCT-28 OCT 070/070/070 90 DAY MEAN 25 OCT 071 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 24 OCT 010/011 ESTIMATED AFR/AP 25 OCT 010/010 PREDICTED AFR/AP 26 OCT-28 OCT 020/025-015/015-015/010 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 26 OCT-28 OCT A. MIDDLE LATITUDES ACTIVE 40/35/25 MINOR STORM 25/20/15 MAJOR-SEVERE STORM 10/05/05 B. HIGH LATITUDES ACTIVE 40/35/25 MINOR STORM 25/20/15 MAJOR-SEVERE STORM 10/10/05