ABPW10 PGTW 161430
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/161430Z-170600ZFEB2021//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/161351ZFEB2021//
AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 91W) PREVIOUSLY LOCATED 
NEAR 7.3N 135.6E IS NOW LOCATED NEAR 7.4N 134.7E, APPROXIMATELY 15 
NM EAST OF BABELTHUAP, PALAU, FSM. ANIMATED ENHANCED INFRARED (EIR) 
SATELLITE IMAGERY AND A 160927Z SSMIS 91GHZ SATELLITE IMAGE DEPICT 
FORMATIVE CONVECTIVE BANDING BEGINNING TO WRAP INTO AN OBSCURED LOW 
LEVEL CIRCULATION CENTER (LLCC). INVEST 91W IS IN A FAVORABLE 
ENVIRONMENT FOR DEVELOPMENT WITH LOW TO MODERATE (10-20 KT) VERTICAL 
WIND SHEAR (VWS), GOOD POLEWARD OUTFLOW, AND WARM (29-30C)SEA 
SURFACE TEMPERATURES (SST). GLOBAL MODELS ARE IN GOOD AGREEMENT THAT 
91W WILL STRENGTHEN AND CONSOLIDATE AS IT TRACKS WEST-
NORTHWESTWARD.  MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 
TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1005 
MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL 
CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH. SEE REF A 
(WTPN21 PGTW 161400) FOR FURTHER DETAILS.
      (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: UPGRADED AREA IN PARA 1.B.(1) TO 
HIGH.//
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