ABPW10 PGTW 181400
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/181400Z-191400ZJUN2021//
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 5.2N 155.7E IS NOW LOCATED NEAR 6.0N 153.7E, APPROXIMATELY 133 
NM SOUTHEAST OF CHUUK. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY 
(EIR) DEPICTS A VERY BROAD AREA OF DENSE, PERSISTENT CONVECTION WITH 
FRAGMENTED RAIN BANDS BEGINNING TO ORGANIZE. THE SLOW CONSOLIDATION 
IS ALSO EVIDENT ON RECENT TOTAL PRECIPITABLE WATER ANIMATION. THE 
ENVIRONMENT IS FAVORABLE FOR DEVELOPMENT WITH CONDUCIVE, WARM (28-29 
CELSIUS) SEA SURFACE TEMPERATURE VALUES AND LOW (5-10 KTS) VERTICAL 
WIND SHEAR. FURTHERMORE, A POINT SOURCE DIRECTLY OVER THE ANALYZED 
POSITION REVEALS SUPPORTIVE, ROBUST RADIAL DIVERGENCE ALOFT THAT IS 
CLEARLY EVIDENT IN THE ANIMATED EIR LOOP. NUMERICAL MODELS ARE IN 
AGREEMENT THAT INVEST 94W WILL CONTINUE TO TRACK WEST-NORTHWESTWARD 
TOWARD GUAM AS IT SLOWLY INTENSIFIES OVER THE NEXT 24 HOURS.  
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 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 IS UPGRADED TO MEDIUM.
      (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 
MEDIUM.
//
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