:Product: 19990609RSGA.txt
:Issued: 1999 Jun 09 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 160 ISSUED AT 2200Z ON 09 JUN 1999
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  08/2100Z
TO 09/2100Z:  SOLAR ACTIVITY WAS LOW. ONLY OCCASIONAL SMALL C-CLASS
EVENTS OCCURRED DURING THE DAY. REGION 8574 (N29W12) CONTINUES TO BE
THE MOST ACTIVE REGION, PRODUCING TWO SMALL C-CLASS EVENTS AND
SEVERAL OPTICAL SUB FLARES. TWO NEW REGIONS WERE ASSIGNED: 8579
(N12E10) AND 8580 (S19E67).
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE LOW.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 08/2100Z TO 09/2100Z:
THE GEOMAGNETIC FIELD WAS MOSTLY QUIET TO UNSETTLED WITH A SINGLE
ACTIVE PERIOD OCCURRING 09/1500-1800UT.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE MOSTLY QUIET TO UNSETTLED DURING THE NEXT 24 HOURS,
WITH A CHANCE OF ISOLATED ACTIVE CONDITIONS. QUIET TO UNSETTLED
CONDITIONS ARE EXPECTED JUNE 11-12.
III.  EVENT PROBABILITIES 10 JUN-12 JUN
CLASS M    30/30/30
CLASS X    05/05/05
PROTON     05/05/05
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           09 JUN 165
PREDICTED   10 JUN-12 JUN  165/165/160
90 DAY MEAN        09 JUN 135
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 08 JUN  012/015
ESTIMATED AFR/AP 09 JUN  010/010
PREDICTED AFR/AP 10 JUN-12 JUN  010/010-005/010-005/010
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 10 JUN-12 JUN
A.  MIDDLE LATITUDES
ACTIVE                20/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                25/15/15
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01