:Product: 19980326RSGA.txt
:Issued: 1998 Mar 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 085 ISSUED AT 2200Z ON 26 MAR 1998
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  25/2100Z
TO 26/2100Z:  SOLAR ACTIVITY WAS MODERATE. REGION 8185 (S25E12)
PRODUCED A LONG DURATION M1/2B AT 26/1259Z. REGION 8185 IS THE
LARGEST REGION ON THE DISK AND IS CURRENTLY A FHC GROUP.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY SHOULD BE LOW TO
MODERATE. REGION 8185 REMAINS CAPABLE OF PRODUCING ISOLATED M-CLASS
EVENTS.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 25/2100Z TO 26/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED FROM 25/2100Z TO
26/1200Z. UNSETTLED TO ACTIVE CONDITIONS WERE OBSERVED THE REMAINDER
OF THE PERIOD.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD SHOULD BE
QUIET TO UNSETTLED THROUGH THE FORECAST PERIOD.
III.  EVENT PROBABILITIES 27 MAR-29 MAR
CLASS M    20/20/20
CLASS X    05/05/05
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           26 MAR 110
PREDICTED   27 MAR-29 MAR  111/111/110
90 DAY MEAN        26 MAR 099
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 25 MAR  009/016
ESTIMATED AFR/AP 26 MAR  010/012
PREDICTED AFR/AP 27 MAR-29 MAR  010/012-010/010-010/010
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 27 MAR-29 MAR
A.  MIDDLE LATITUDES
ACTIVE                20/20/20
MINOR STORM           10/10/10
MAJOR-SEVERE STORM    05/05/05
B.  HIGH LATITUDES
ACTIVE                25/25/25
MINOR STORM           15/15/15
MAJOR-SEVERE STORM    05/05/05