:Product: 19970226RSGA.txt
:Issued: 1997 Feb 26 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 057 ISSUED AT 2200Z ON 26 FEB 1997
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  25/2100Z
TO 26/2100Z:  SOLAR ACTIVITY REMAINED VERY LOW. THE DISK BECAME
SPOTLESS.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW FOR THE NEXT THREE DAYS.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 25/2100Z TO 26/2100Z:
THE GEOMAGNETIC FIELD WAS PREDOMINANTLY QUIET TO UNSETTLED.  A PERIOD
OF ACTIVE LEVELS AT MID LATITUDES AND MINOR TO MAJOR LEVELS AT HIGH
LATITUDES OCCURRED FROM 26/12-15Z.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED TOMORROW AND QUIET ON THE SECOND
AND THIRD DAYS.
III.  EVENT PROBABILITIES 27 FEB-01 MAR
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           26 FEB 074
PREDICTED   27 FEB-01 MAR  074/074/074
90 DAY MEAN        26 FEB 076
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 25 FEB  008/005
ESTIMATED AFR/AP 26 FEB  016/010
PREDICTED AFR/AP 27 FEB-01 MAR  010/008-005/008-005/008
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 27 FEB-01 MAR
A.  MIDDLE LATITUDES
ACTIVE                15/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                20/15/15
MINOR STORM           10/05/05
MAJOR-SEVERE STORM    01/01/01