:Product: 19960509RSGA.txt :Issued: 1996 May 09 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 130 ISSUED AT 2200Z ON 09 MAY 1996 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 08/2100Z TO 09/2100Z: SOLAR ACTIVITY WAS LOW WITH ONE C-CLASS ERUPTIVE EVENT FROM REGION 7962 (S07E40). A C2/1F FLARE OCCURRED AT 08/2146Z FROM THIS REGION. REGION 7962 IS CURRENTLY CLASSIFIED AS A C-TYPE BETA GROUP WITH 7 SPOTS AND AN AREA OF 130 MILLIONTHS. THE OTHER OPTICAL FLARE WAS A B8/SF FLARE WHICH ALSO ORIGINATED FROM 7962 AT 08/2236Z. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE LOW WITH ISOLATED C-CLASS FLARES, MOST LIKELY FROM REGION 7962 AS IT MOVES ACROSS THE DISK. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 08/2100Z TO 09/2100Z: THE GEOMAGNETIC FIELD HAS BEEN AT QUIET TO UNSETTLED LEVELS FOR THE PAST 24 HOURS. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE AT QUIET TO UNSETTLED LEVELS AT THE MIDDLE LATITUDES AND UNSETTLED TO ACTIVE AT HIGH LATITUDES FOR THE NEXT 24 HOURS. III. EVENT PROBABILITIES 10 MAY-12 MAY CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 09 MAY 076 PREDICTED 10 MAY-12 MAY 078/078/080 90 DAY MEAN 09 MAY 070 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 08 MAY 008/008 ESTIMATED AFR/AP 09 MAY 008/006 PREDICTED AFR/AP 10 MAY-12 MAY 010/010-015/020-010/015 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 10 MAY-12 MAY A. MIDDLE LATITUDES ACTIVE 20/25/20 MINOR STORM 10/10/10 MAJOR-SEVERE STORM 05/05/05 B. HIGH LATITUDES ACTIVE 25/30/25 MINOR STORM 10/10/10 MAJOR-SEVERE STORM 05/10/05