:Product: 19980301RSGA.txt :Issued: 1998 Mar 01 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 060 ISSUED AT 2200Z ON 01 MAR 1998 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 28/2100Z TO 01/2100Z: SOLAR ACTIVITY WAS LOW. REGION 8169 (S21W72) PRODUCED TWO C-CLASS SUBFLARES AROUND MID PERIOD. OTHERWISE, OCCASIONAL B-CLASS X-RAY BURSTS OCCURRED. REGION 8171 (S23W23) DISPLAYED GRADUAL GROWTH THROUGH THE PERIOD. REGIONS 8172 (N22E05) AND 8173 (S17E71) WERE NUMBERED. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE LOW. REGIONS 8169 AND 8171 ARE CAPABLE OF C-CLASS FLARE PRODUCTION. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 28/2100Z TO 01/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED. ACTIVE LEVELS ARE POSSIBLE ON THE FINAL DAY OF THE FORECAST PERIOD. III. EVENT PROBABILITIES 02 MAR-04 MAR CLASS M 05/05/05 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 01 MAR 098 PREDICTED 02 MAR-04 MAR 100/098/096 90 DAY MEAN 01 MAR 095 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 28 FEB 012/012 ESTIMATED AFR/AP 01 MAR 008/009 PREDICTED AFR/AP 02 MAR-04 MAR 005/005-005/005-010/010 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 02 MAR-04 MAR A. MIDDLE LATITUDES ACTIVE 10/10/20 MINOR STORM 01/01/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 15/15/30 MINOR STORM 05/05/10 MAJOR-SEVERE STORM 01/01/01