ABPW10 PGTW 210330
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS REISSUED/210330Z-210600ZOCT2023//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/201952ZOCT2023//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/210251ZOCT2023//
NARR/REF A IS A TROPICAL CYCLONE FINAL WARNING. REF B IS A TROPICAL 
CYCLONE FORMATION ALERT.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 20OCT23 1800Z, TROPICAL DEPRESSION 16W (SANBA) WAS LOCATED 
NEAR 19.9N 108.7E, APPROXIMATELY 235 NM NORTH OF DA NANG, VIETNAM, AND 
HAD TRACKED SOUTHWESTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 25 KNOTS GUSTING TO 35 KNOTS. 
SEE REF A (WTPN31 PGTW 202100) FOR THE FINAL WARNING ON THIS SYSTEM.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   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:
      (1) THE AREA OF CONVECTION (INVEST 90P) PREVIOUSLY LOCATED NEAR 
7.1S 169.3E IS NOW LOCATED NEAR 7.4S 168.8E, APPROXIMATELY 525 NM EAST-
NORTHEAST OF HONIARA, SOLOMON ISLANDS. ANIMATED MULTISPECTRAL SATELLITE 
IMAGERY DEPICTS A CONSOLIDATING, PARTIALLY EXPOSED LOW-LEVEL CIRCULATION 
CENTER (LLCC) WITH PERSISTENT DEEP CONVECTION AND FORMATIVE BANDING IN 
THE NORTHERN AND EASTERN PERIPHERIES. A 202237Z ASCAT-C IMAGE REVEALS 
SPARSE 30 KT WINDS SOUTH OF THE CIRCULATION CENTER. ENVIRONMENTAL 
ANALYSIS INDICATES THAT 90P IS IN A FAVORABLE ENVIRONMENT FOR 
DEVELOPMENT WITH GOOD OUTFLOW ALOFT, LOW (10-15 KTS) VERTICAL WIND 
SHEAR, AND WARM (29-30 C) SST. GLOBAL MODELS ARE IN GOOD AGREEMENT THAT 
90P WILL TRACK SOUTH-SOUTHWESTWARD AND CONTINUE TO DEVELOP OVER THE NEXT 
24-48 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 25 TO 30 
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 B (WTPS21 PGTW 210300) 
FOR FURTHER DETAILS.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 2.B.(1) TO HIGH.//
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