:Product: 19960511RSGA.txt :Issued: 1996 May 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 132 ISSUED AT 2200Z ON 11 MAY 1996 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 10/2100Z TO 11/2100Z: SOLAR ACTIVITY WAS VERY LOW. REGION 7962 (S07E14) SHOWED MODEST GROWTH AND PRODUCED A COUPLE B-CLASS EVENTS. THE MAJORITY OF ACTIVITY IN THIS REGION IS OCCURING IN A SHEARED SECTION OF MAGNETIC FIELD SOUTH OF THE LARGE CENTRAL SPOT. YESTERDAY'S DELTA CONFIGURATION IS GONE TODAY AS THE NEGATIVE POLARITY SECTION HAS SPLIT OFF FROM THE MAIN SPOT. A SMALL BIPOLE REGION EMERGED JUST EAST OF 7962 AND WAS ASSIGNED REGION NUMBER 7964 (S07E26). IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE LOW. REGION 7962 SHOWS GOOD POTENTIAL FOR PRODUCING AN ISOLATED C-CLASS EVENT. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 10/2100Z TO 11/2100Z: THE GEOMAGNETIC FIELD HAS BEEN AT MOSTLY QUIET LEVELS FOR THE PAST 24 HOURS. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE GENERALLY UNSETTLED FOR THE NEXT TWO DAYS. AN INCREASE TO UNSETTLED TO ACTIVE LEVELS IS EXPECTED ON THE THIRD DAY DUE TO RECURRENCE. III. EVENT PROBABILITIES 12 MAY-14 MAY CLASS M 05/05/05 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 11 MAY 076 PREDICTED 12 MAY-14 MAY 079/080/080 90 DAY MEAN 11 MAY 070 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 10 MAY 007/006 ESTIMATED AFR/AP 11 MAY 006/006 PREDICTED AFR/AP 12 MAY-14 MAY 010/012-010/015-015/020 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 12 MAY-14 MAY A. MIDDLE LATITUDES ACTIVE 10/10/40 MINOR STORM 05/05/10 MAJOR-SEVERE STORM 05/05/05 B. HIGH LATITUDES ACTIVE 10/10/35 MINOR STORM 05/05/15 MAJOR-SEVERE STORM 05/05/05