:Product: 19970208RSGA.txt :Issued: 1997 Feb 08 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 039 ISSUED AT 2200Z ON 08 FEB 1997 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 07/2100Z TO 08/2100Z: SOLAR ACTIVITY WAS VERY LOW. THERE WERE NO SIGNIFICANT FLARES. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO REMAIN VERY LOW FOR THE ENTIRE FORECAST PERIOD. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 07/2100Z TO 08/2100Z: THE GEOMAGNETIC FIELD WAS AT QUIET TO MAJOR STORM LEVELS FOR THE PAST 24 HOURS. MAJOR STORMING OCCURRED BETWEEN 08/1200 AND 08/1500Z. SPACE BASED SOLAR WIND DATA INCDATE A HIGH SPEED, LOW DENSITY STREAM AT THAT TIME. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT 48 HOURS. MID LATITUDE ACTIVE LEVELS AND HIGH LATITUDE ACTIVE TO MINOR STORM LEVELS ARE EXPECTED ON DAY THREE OF THE FORECAST PERIOD IN RESPONSE TO THE LARGE CME OBSERVED EARLY 7 FEBRUARY. HIGH LATITUDE STATIONS MAY SEE OCCASSIONAL PERIODS OF MAJOR STORMING DURING THAT TIME. III. EVENT PROBABILITIES 09 FEB-11 FEB CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 08 FEB 075 PREDICTED 09 FEB-11 FEB 076/076/074 90 DAY MEAN 08 FEB 078 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 07 FEB 003/003 ESTIMATED AFR/AP 08 FEB 014/020 PREDICTED AFR/AP 09 FEB-11 FEB 010/012-010/010-025/027 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 09 FEB-11 FEB A. MIDDLE LATITUDES ACTIVE 10/10/35 MINOR STORM 05/05/30 MAJOR-SEVERE STORM 01/01/25 B. HIGH LATITUDES ACTIVE 10/15/30 MINOR STORM 05/10/30 MAJOR-SEVERE STORM 01/01/30