:Product: 19990201RSGA.txt :Issued: 1999 Feb 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 032 ISSUED AT 2200Z ON 01 FEB 1999 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 31/2100Z TO 01/2100Z: SOLAR ACTIVITY WAS LOW. REGION 8446 (N18W82) PRODUCED A C3/SF FLARE AT 0839Z. THE OTHER SOLAR ACTIVE REGIONS WERE VERY STABLE. A 7 DEGREE FILAMENT NEAR S22W55 DISAPPEARED BETWEEN 31/2057 AND 01/1243Z. TODAY'S H-ALPHA DATA INDICATED SOME FAINT, REMAINING TRACES OF THE FILAMENT, SUGGESTING THAT MATERIAL MAY HAVE FADED RATHER THAN ERUPTED. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE LOW TO VERY LOW. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 31/2100Z TO 01/2100Z: THE GEOMAGNETIC FIELD WAS QUIET DURING THE PAST 24 HOURS. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE UNSETTLED FOR THE NEXT THREE DAYS. III. EVENT PROBABILITIES 02 FEB-04 FEB CLASS M 05/05/05 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 01 FEB 118 PREDICTED 02 FEB-04 FEB 115/115/110 90 DAY MEAN 01 FEB 144 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 31 JAN 003/003 ESTIMATED AFR/AP 01 FEB 005/005 PREDICTED AFR/AP 02 FEB-04 FEB 010/008-010/008-010/012 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 02 FEB-04 FEB A. MIDDLE LATITUDES ACTIVE 05/05/15 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 10/10/15 MINOR STORM 05/05/10 MAJOR-SEVERE STORM 01/01/05