ABPW10 PGTW 032130
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/032130Z-040600ZSEP2021//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/031951ZSEP2021//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 03SEP21 1800Z, TROPICAL DEPRESSION 17W (SEVENTEEN) WAS 
LOCATED NEAR 32.9N 159.6E, APPROXIMATELY 997 NM EAST OF YOKOSUKA, 
JAPAN, AND HAD TRACKED NORTHEAST-WARD AT 18 KNOTS OVER THE PAST SIX 
HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 25 KNOTS 
GUSTING TO 35 KNOTS. SEE REF A (WTPN31 PGTW 032100) FOR THE FINAL 
WARNING ON THIS SYSTEM.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 94W) PREVIOUSLY LOCATED 
NEAR 11.1N 143.1E IS NOW LOCATED NEAR 10.7N 143.7E, APPROXIMATELY 
165 NM SOUTHWEST OF GUAM. ANIMATED ENHANCED INFRARED SATELLITE 
IMAGERY (EIR) AND A 030412Z AMSR2 89GHZ MICROWAVE IMAGE DEPICT 
CONVECTION CYCLING OVER THE SOUTHWEST QUADRANT OF A BROAD, 
WEAKLY DEFINED LOW-LEVEL CIRCULATION. ENVIRONMENTAL ANALYSIS 
INDICATES FAVORABLE CONDITIONS FOR DEVELOPMENT, WITH ROBUST, DUAL-
CHANNEL OUTFLOW, LOW (5-10KTS) VERTICAL WIND SHEAR (VWS), AND WARM 
(30C) SEA SURFACE TEMPERATURES (SST). GLOBAL MODELS ARE IN GOOD 
AGREEMENT THAT 94W WILL TRACK TO THE NORTHWEST AS IT INTENSIFIES. 
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 13 TO 18 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1008 MB. THE 
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE 
WITHIN THE NEXT 24 HOURS REMAINS LOW.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: ISSUED FINAL WARNING FOR TC 17W.//
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