:Product: 19970528RSGA.txt
:Issued: 1997 May 28 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 148 ISSUED AT 2200Z ON 28 MAY 1997
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  27/2100Z
TO 28/2100Z:  SOLAR ACTIVITY WAS LOW. TODAY'S ONLY C-CLASS EVENT
OCCURRED AT 0342Z: THE OPTICAL COUNTERPART WAS NOT OBSERVED. REGIONS
8046 (S27W01) AND 8047 (N26E55) ARE THE ONLY SPOTTED REGIONS VISIBLE
AS REGION 8045 (N02, WEST LIMB) HAS ROTATED OFF THE DISK. BOTH OF
THESE GROUPS CONSIST OF SMALL SPOTS WITHOUT PENUMBRA.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 27/2100Z TO 28/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET DURING THE PAST 24 HOURS.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS.
III.  EVENT PROBABILITIES 29 MAY-31 MAY
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           28 MAY 077
PREDICTED   29 MAY-31 MAY  077/077/077
90 DAY MEAN        28 MAY 074
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 27 MAY  017/021
ESTIMATED AFR/AP 28 MAY  005/007
PREDICTED AFR/AP 29 MAY-31 MAY  008/008-007/008-007/008
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 29 MAY-31 MAY
A.  MIDDLE LATITUDES
ACTIVE                10/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                15/15/15
MINOR STORM           10/10/10
MAJOR-SEVERE STORM    01/01/01