ABPW10 PGTW 130400
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/130400Z-130600ZAPR2021//
REF/A/JOINT TYPHOON WRNCEN PEARL HARBOR HI/130321Z APR 21//
AMPN/REF IS TROPICAL CYCLONE FORMATION ALERT (WTPN21 PGTW 130330)//
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 94W) PREVIOUSLY LOCATED 
NEAR 5.9N 141.5E IS NOW LOCATED NEAR 7.3N 138.5E, APPROXIMATELY 134 
NM SOUTH OF YAP. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) 
DEPICTS PERSISTENT CONVECTION PARTIALLY OBSCURING A LOW LEVEL 
CIRUCLATION CENTER (LLCC). A 122137 SSMIS 91GHZ SATELLITE IMAGE 
DEPICTS MINOR LOWER LEVEL BANDING AND DEEP CONVECTION TO THE 
NORTHERN PERIPHERY. ANALYSIS INDICATES A FAVORABLE ENVIRONMENT FOR 
DEVELOPMENT WITH WARM (29-30C) SEA SURFACE TEMPERATURES (SST), DUAL-
CHANNEL UPPER LEVEL OUTFLOW, AND LOW TO MODERATE (10-20 KTS) 
VERTICAL WIND SHEAR (VWS). GLOBAL MODELS ARE IN AGREEMENT THAT 
INVEST 94W WILL CONTINUE TO TRACK NORTHWESTWARD, CONSOLIDATE AND 
STRENGTHEN FOR THE NEXT 48-96 HOURS. 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 REMAINS HIGH. 
SEE REF A (WTPN21 PGTW 130330) 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: REISSUED TCFA FOR  AREA IN PARA 1.B. 
(1).//
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