:Product: 19980304RSGA.txt :Issued: 1998 Mar 04 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 063 ISSUED AT 2200Z ON 04 MAR 1998 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 03/2100Z TO 04/2100Z: SOLAR ACTIVITY WAS LOW. REGION 8171 (S24W62) APPEARS TO BE MATURING AS A MODERATELY-SIZED E-TYPE SUNSPOT GROUP WITHOUT APPRECIABLE MAGNETIC COMPLEXITY. THE REGION CONTINUES TO PRODUCE SMALL C-CLASS FLARES, THE LARGEST OF WHICH WAS A C2/SF AT 04/0719Z. A PARTIAL-HALO CME WAS OBSERVED IN THE LASCO CORONOGRAPH AT ABOUT 03/0900Z. REGION 8172 (N22W35) IS GROWING SLOWLY. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE LOW. C-CLASS ACTIVITY SHOULD CONTINUE IN REGION 8171. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 03/2100Z TO 04/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GREATER THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ATLTITUDE WAS MODERATE. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED. III. EVENT PROBABILITIES 05 MAR-07 MAR CLASS M 05/05/05 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 04 MAR 102 PREDICTED 05 MAR-07 MAR 098/096/094 90 DAY MEAN 04 MAR 095 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 03 MAR 003/004 ESTIMATED AFR/AP 04 MAR 010/008 PREDICTED AFR/AP 05 MAR-07 MAR 010/012-005/008-010/010 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 05 MAR-07 MAR A. MIDDLE LATITUDES ACTIVE 15/15/15 MINOR STORM 10/10/10 MAJOR-SEVERE STORM 05/05/05 B. HIGH LATITUDES ACTIVE 15/15/15 MINOR STORM 10/10/10 MAJOR-SEVERE STORM 05/05/05