:Product: 19980202RSGA.txt :Issued: 1998 Feb 02 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 033 ISSUED AT 2200Z ON 02 FEB 1998 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 01/2100Z TO 02/2100Z: SOLAR ACTIVITY WAS VERY LOW. NEW REGION 8149 (N25E70), A SPOTLESS PLAGE REGION, PRODUCED A B7.7/SF FLARE AT 02/1755Z. THIS REGION IS JUST COMING ONTO THE VISIBLE DISK AND NO SPOTS HAVE BEEN DETECTED YET. THE REMAINDER OF THE DISK AND LIMB REMAINED QUIET AND STABLE SAVE FOR A MINOR FILAMENT ERUPTION IN THE NW QUADRANT. NEW REGION 8148 (S29E10), A RAPIDLY DISSIPATING BXO SPOT GROUP, WAS NUMBERED TODAY ALSO. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW TO LOW. REGION 8149 MAY HAVE POTENTIAL FOR ISOLATED C-CLASS ACTIVITY AND AN OUTSIDE CHANCE FOR AN ISOLATED M-CLASS FLARE IF IT GROWS. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 01/2100Z TO 02/2100Z: THE GEOMAGNETIC FIELD WAS QUIET AT ALL LATITUDES. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO REMAIN QUIET FOR THE ENTIRE FORECAST PERIOD. III. EVENT PROBABILITIES 03 FEB-05 FEB CLASS M 05/10/10 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 02 FEB 089 PREDICTED 03 FEB-05 FEB 090/090/088 90 DAY MEAN 02 FEB 097 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 01 FEB 010/007 ESTIMATED AFR/AP 02 FEB 004/005 PREDICTED AFR/AP 03 FEB-05 FEB 005/005-005/005-005/005 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 03 FEB-05 FEB A. MIDDLE LATITUDES ACTIVE 10/10/10 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 10/10/10 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01