ABPW10 PGTW 270200
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/270200Z-270600ZOCT2020//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/261952ZOCT2020//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 26OCT20 1800Z, TYPHOON 21W (MOLAVE) WAS LOCATED NEAR 
13.2N 115.9E, APPROXIMATELY 472 NM EAST-SOUTHEAST OF DA NANG, 
VIETNAM, AND HAD TRACKED WESTWARD AT 18 KNOTS OVER THE PAST SIX 
HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 90 KNOTS 
GUSTING TO 110 KNOTS. SEE REF A (WTPN32 PGTW 262100) FOR FURTHER 
DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 99W) PREVIOUSLY LOCATED 
NEAR 12N 140E IS NOW LOCATED NEAR 15.5N 141.5E, APPROXIMATELY 224 NM 
NORTHWEST OF GUAM. ANIMATED MULTISPECTRAL SATELLITE 
IMAGERY DEPICTS A CONSOLIDATING LOW LEVEL CIRCULATION (LLC) WITH 
PERSISTENT DEEP CONVECTION OVERHEAD. A 260012Z MHS METOP-B 89GHZ 
MICROWAVE IMAGE SHOWS LIMITED DEEP CONVECTION IN THE VICINITY OF THE 
LLC. FURTHERMORE, THE WIND FIELD DEPICTED IN A 262351Z ASCAT-B PASS 
DEPICTS WEAK (5-10 KTS) WINDS ALONG THE SOUTHWESTERN PERIPHERY OF 
THE SYSTEM CENTER, AND STRONGER (25-30 KTS) WINDS PRESENT ALONG THE 
NORTHEASTERN PERIPHERY. INVEST 99W IS CURRENTLY IN A MARGINAL 
ENVIRONMENT WITH MODERATE UPPER LEVEL OUTFLOW, WARM (30 TO 31 
CELSIUS) SEA SURFACE TEMPERATURES AND LOW VERTICAL WIND SHEAR (10-
15KNOTS). GLOBAL MODELS ARE IN GOOD AGREEMENT THAT 99W WILL CONTINUE 
TO TRACK GENERALLY WEST-NORTHWESTWARD WITH MINIMAL INTENSIFICATION. 
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 10 TO 15 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. 
 MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 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 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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