:Product: 19960911RSGA.txt :Issued: 1996 Sep 11 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 255 ISSUED AT 2200Z ON 11 SEP 1996 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 10/2100Z TO 11/2100Z: SOLAR ACTIVITY WAS VERY LOW. NO FLARES OCCURRED. THERE ARE NO NUMBERED ACTIVE REGIONS. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 10/2100Z TO 11/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO ACTIVE. SOLAR WIND DATA SUGGESTS THAT THE HIGH-SPEED STREAM MENTIONED YESTERDAY CONTINUES TO IMPACT THE EARTH. 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 BECOMING QUIET TO UNSETTLED BY THE END OF THE THREE DAY FORECAST PERIOD. III. EVENT PROBABILITIES 12 SEP-14 SEP CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 11 SEP 068 PREDICTED 12 SEP-14 SEP 068/068/068 90 DAY MEAN 11 SEP 071 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 10 SEP 034/028 ESTIMATED AFR/AP 11 SEP 020/017 PREDICTED AFR/AP 12 SEP-14 SEP 015/013-010/010-010/008 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 12 SEP-14 SEP A. MIDDLE LATITUDES ACTIVE 25/30/30 MINOR STORM 30/15/15 MAJOR-SEVERE STORM 05/05/05 B. HIGH LATITUDES ACTIVE 25/30/30 MINOR STORM 30/15/15 MAJOR-SEVERE STORM 05/05/05