ABIO10 PGTW 141800
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN/141800Z-
151800ZAPR2023//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/131951ZAPR2023//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. NORTH INDIAN OCEAN AREA (MALAY PENINSULA WEST TO COAST OF AFRICA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
2. SOUTH INDIAN OCEAN AREA (135E WEST TO COAST OF AFRICA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 13APR23 1800Z, TROPICAL CYCLONE 18S (ILSA) WAS LOCATED NEAR 
20.5S 119.9E, APPROXIMATELY 341 NM EAST-NORTHEAST OF LEARMONTH, 
AUSTRALIA, AND HAD TRACKED SOUTHEASTWARD AT 13 KNOTS OVER THE PAST SIX 
HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 115 KNOTS 
GUSTING TO 140 KNOTS. SEE REF A (WTXS31 PGTW 132100) FOR THE FINAL 
WARNING ON THIS SYSTEM.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//
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