:Product: 19981030RSGA.txt :Issued: 1998 Oct 30 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 303 ISSUED AT 2200Z ON 30 OCT 1998 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 29/2100Z TO 30/2100Z: SOLAR ACTIVITY WAS VERY LOW. ALL SIX SPOTTED REGIONS WERE STABLE AND UNPRODUCTIVE. REGION 8375 (N17E58) IS THE LARGEST IN WHITE LIGHT AND H-ALPHA. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW TO LOW. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 29/2100Z TO 30/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GREATER THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT WAS HIGH. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO PERSIST AT QUIET TO UNSETTLED LEVELS THROUGHOUT THE PERIOD. III. EVENT PROBABILITIES 31 OCT-02 NOV CLASS M 05/05/05 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 30 OCT 112 PREDICTED 31 OCT-02 NOV 115/115/120 90 DAY MEAN 30 OCT 131 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 29 OCT 008/008 ESTIMATED AFR/AP 30 OCT 007/010 PREDICTED AFR/AP 31 OCT-02 NOV 005/008-005/008-005/008 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 31 OCT-02 NOV A. MIDDLE LATITUDES ACTIVE 10/10/10 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 20/20/20 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01