Subject: Pacific-NW: This Warning Supersedes And Cancels Navpacmetoccen West [240900]

From: SIU Weather Processor <[email-masked]>
Date: Thu, 24 Jul 1997 04:15:02 -0500

909
WTPN32 PGTW 240900
THIS WARNING SUPERSEDES AND CANCELS NAVPACMETOCCEN WEST
GU 232351Z JUL 97
TROPICAL CYCLONE FORMATION ALERT (WTPN22 PGTW 240000 )
1. TROPICAL DEPRESSION 11W WARNING NR 001
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   240600Z2 --- 31.5N9 151.5E2
     MOVEMENT PAST SIX HOURS - 360 DEGREES AT 05 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   REPEAT POSIT: 31.5N9 151.5E2
    ---
   FORECASTS:
   12 HRS, VALID AT:
   241800Z5 --- 32.1N6 151.6E3

PAGE 03 RUHGSGG6102 UNCLAS
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   VECTOR TO 24 HR POSIT: 360 DEG/ 03 KTS
    ---
   24 HRS, VALID AT:
   250600Z3 --- 32.6N1 151.7E4
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   VECTOR TO 36 HR POSIT: 360 DEG/ 04 KTS
    ---
   36 HRS, VALID AT:
   251800Z6 --- 33.3N9 151.7E4
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
    ---
REMARKS:
240900Z5 POSITION 31.6N0  151.5E2
TROPICAL DEPRESSION 11W (TD11W) HAS FORMED IN THE WESTERN
NORTH PACIFIC. CURRENT INTENSITY OF 30 KNOTS IS BASED ON
A 240530Z4 VISIBLE SATELLITE IMAGERY INTENSITY ESTIMATE
OF DVORAK T2.0 (30 KNOTS). THIS DEPRESSION HAS GONE
THROUGH PERIODIC EPISODES OF INCREASED CONVECTION ON ITS
EASTERN SIDE.  240155Z7 ERS-2 SCATTEROMETER DATA

PAGE 04 RUHGSGG6102 UNCLAS
INDICATES 35 KNOT WINDS WERE PRESENT WITHIN THE
CONVECTIVE AREA APPROXIMATELY 150 NM EAST OF THE LOW-
LEVEL CIRCULATION AREA AT THAT TIME. INTENSIFICATION OF
TD11W IS BEING INHIBITED BY STRONG UPPER-LEVEL WESTERLY
WINDS FROM THE OUTFLOW OF TYPHOON ROSIE (10W), LOCATED
APPROXIMATELY 1000 NM EAST-SOUTHEAST OF TD11W.  MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 240600Z2 IS 09 FEET. REFER TO
WWPW30 PGFW FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT
WARNINGS AT 242100Z9 (DTG 241955Z6) AND 250900Z6 (DTG
(250755Z4). IF THE JOINT TYPHOON WARNING CENTER
ANTICIPATES THAT THIS TROPICAL DEPRESSION WILL REACH
TROPICAL STORM INTENSITY, THEN A STANDARD 72 HOUR
TROPICAL CYCLONE WARNING WILL BE ISSUED.  OTHERWISE, 36
HOUR TROPICAL DEPRESSION WARNINGS WILL BE UPDATED EVERY
12 HOURS. THIS WARNING SUPERSEDES AND CANCELS
NAVPACMETOCCEN WEST GU 232351Z JUL 97 TROPICAL CYCLONE
FORMATION ALERT (WTPN22 PGTW 240000 ) REFER TO TYPHOON
ROSIE (10W) WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY
UPDATES.//
BT
#6102

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