Subject: Pacific-NW: [240000]

From: SIU Weather Processor <[email-masked]>
Date: Wed, 23 Jul 1997 20:44:38 -0500

334
WTPN22 PGTW 240000

PAGE 02 RUHGSGG5692 UNCLAS
SUBJ/TROPICAL CYCLONE FORMATION ALERT 232357Z JUL 97//
REF/A/RMG/NAVPACMETOCCEN WEST GU/230955Z JUL 97//
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS
POSSIBLE WITHIN A 150 NM RADIUS OF 31.1N5 152.8E6 WITHIN
THE NEXT 06 TO 12 HOURS.  AVAILABLE DATA DOES NOT JUSTIFY
ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS
TIME.  WINDS IN THE AREA ARE ESTIMATED TO BE 20 TO 25
KNOTS.  METSAT IMAGERY AT 232230Z INDICATES THAT A
CIRCULATION CENTER IS LOCATED NEAR 30.9N2 152.2E0.  THE
SYSTEM IS MOVING SLOWLY NORTHEASTWARD.
2. REMARKS:
SUBJECT DISTURBANCE HAS MAINTAINED ORGANIZED CONVECTION
ON ITS EAST SIDE FOR OVER 12 HOURS.  SCATTEROMETER WIND
DATA INDICATES SUSTAINED WINDS OF 20-25 KNOTS ASSOCIATED
WITH THIS SUBTROPICAL CYCLONE.  UPPER-LEVEL WESTERLY
WINDS FROM THE OUTFLOW OF TYPHOON ROSIE (10W) HAD BEEN
PREVIOUSLY INHIBITING DEVELOPMENT.  THESE WINDS ARE
DECREASING SOMEWHAT, PROMOTING MINIMAL DEVELOPMENT OF
THIS DISTURBANCE.

PAGE 03 RUHGSGG5692 UNCLAS
3. THIS ALERT VALID UNTIL 250000Z7.
4. SEE REF A FOR DETAILS ON A TROPICAL CYCLONE FORMATION
ALERT LOCATED NEAR 7.0N7 147.4E6.//
BT
#5692

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