:Product: 19990607RSGA.txt
:Issued: 1999 Jun 07 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 158 ISSUED AT 2200Z ON 07 JUN 1999
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  06/2100Z
TO 07/2100Z:  SOLAR ACTIVITY WAS LOW. REGIONS 8574 (N28E14) AND 8562
(S16W70) WERE ONCE AGAIN THE MAIN ACTIVITY CENTERS, ALTHOUGH NEITHER
COULD PRODUCE MORE THAN AN ISOLATED SMALL C-CLASS FLARE. THE VISIBLE
DISK IS LESS IMPRESSIVE THAN IT HAS BEEN THE PAST FEW DAYS, AS ONLY
TWELVE SPOT GROUPS ARE NOW VISIBLE. THE LIMBS WERE QUIET.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO PERSIST
AT LOW LEVELS. REGION 8574 MAY PRODUCE AN ISOLATED M-CLASS EVENT,
SHOULD FURTHER DEVELOPMENT OCCUR.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 06/2100Z TO 07/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO REMAIN AT QUIET LEVELS FOR THE NEXT THREE DAYS.
III.  EVENT PROBABILITIES 08 JUN-10 JUN
CLASS M    30/30/30
CLASS X    05/05/05
PROTON     05/05/05
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           07 JUN 158
PREDICTED   08 JUN-10 JUN  155/150/145
90 DAY MEAN        07 JUN 134
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 06 JUN  003/004
ESTIMATED AFR/AP 07 JUN  005/005
PREDICTED AFR/AP 08 JUN-10 JUN  005/005-005/005-005/005
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 08 JUN-10 JUN
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           05/05/05
MAJOR-SEVERE STORM    01/01/01