ABPW10 PGTW 180600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR/HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN
/AND/SOUTH PACIFIC OCEANS/180600Z-190600ZAUG2021//
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 16W) PREVIOUSLY LOCATED 
NEAR 13.5N 143.3E IS NOW LOCATED NEAR 14.3N 138.1E, APPROXIMATELY 
389 NM WEST OF GUAM. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY 
AND A 180413Z ASMR2 89GHZ IMAGE DEPICT DEEP CONVECTION OVER AN 
OBSCURED LOW LEVEL CENTER. A 180042Z ASCAT PASS REVEALS A CLOSED, 
BROAD CIRCULATION WITH POCKETS OF 20KT WIND OFFSET TO THE EAST AND 
NORTH OF THE CENTER. THE OVERALL ENVIRONMENT IS FAVORABLE WITH WARM 
SST VALUES (31-32 CELSIUS), LOW VERTICAL WIND SHEAR (05-10 KTS) AND 
DUAL CHANNEL OUTFLOW. 16W WILL CONTINUE TO TRACK WEST WITH NUMERICAL 
MODELS HAVING MINOR INTESIFICATION THROUGH TAUS 24-48. MAXIMUM 
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 10 TO 15 KNOTS. MINIMUM SEA 
LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. THE POTENTIAL FOR 
THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 
HOURS REMAINS 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.//
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