ABPW10 PGTW 050600

MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//

SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH

PACIFIC OCEANS/050600Z-060600ZJUN2026//

RMKS/

1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):

   A. TROPICAL CYCLONE SUMMARY: NONE.

   B. TROPICAL DISTURBANCE SUMMARY: NONE.

   C. SUBTROPICAL SYSTEM SUMMARY:

      (1) THE AREA OF CONVECTION (INVEST 91W) PREVIOUSLY LOCATED NEAR

22.5N 120.8E IS NOW LOCATED NEAR 22.2N 120.2E, APPROXIMATELY 25 NM

SOUTH-SOUTHWEST OF KAOHSIUNG. THE SYSTEM IS CURRENTLY CLASSIFIED AS A

SUBTROPICAL DEPRESSION, GENERALLY CHARACTERIZED AS HAVING BOTH

TROPICAL AND MIDLATITUDE CYCLONE FEATURES. ANIMATED MULTISPECTRAL

SATELLITE IMAGERY (MSI), ALONG WITH ANIMATED TAIWAN RADAR DATA, AND

SURFACE AND SHIP OBSERVATIONS DEPICT A WEAK, DISORGANIZED ROTATION

MOVING INLAND OVER SOUTH CENTRAL TAIWAN, TO THE EAST OF KAOHSIUNG. THE

SYSTEM LIES WELL SOUTH OF THE MAI-YU/BAIU BOUNDARY (MBC) CURRENTLY

DRAPED ACROSS THE EAST CHINA SEA (ECS). ANIMATED RADAR DATA DEPICTS

STRONG CONVECTIVE RAIN BANDS ACROSS THE SOUTHERN HEMISPHERE OF THE

ROTATION WITH POCKETS OF ISOLATED AND FRAGMENTED CONVECTION DEVELOPING

ALONG THE EASTERN COAST OF TAIWAN. SHIP OBSERVATIONS ACROSS THE REGION

DEPICT STRENGTHENING NORTHEASTERLIES TO THE NORTH AND WEST OF TAIWAN,

AND STRONG SOUTH-SOUTHWESTERLIES ALONG THE EAST COAST. OVER THE NEXT

24 HOURS, 91W IS FORECAST TO MOVE BACK OVER WATER, EMERGING OFF TAIWAN

IN THE VICINITY OF HUALIEN AND MOVING RAPIDLY NORTHEASTWARD INTO THE

ECS. ENVIRONMENTAL CONDITIONS ARE CONDUCIVE FOR A MODERATE AMOUNT OF

INTENSIFICATION AFTER THE SYSTEM MOVES AWAY FROM THE DISRUPTIVE

EFFECTS OF TAIWAN. THE SYSTEM WILL RAPIDLY MOVE NORTHEASTWARD WHILE

STEADILY BECOMING MORE SUBTROPICAL IN NATURE. AROUND THE 36 HOUR

POINT, IT WILL BEGIN TO EMBED WITHIN THE MBC BOUNDARY AND REACH PEAK

INTENSITY AS IT PASSES WEST OF OKINAWA. THE WIND FIELD IS FORECAST TO

EXPAND AS IT MOVES THROUGH THE ECS, WITH THE HIGHEST WINDS BEING

LOCATED IN THE EASTERN HEMISPHERE OF THE CIRCULATION. MAXIMUM

SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 28 KNOTS. MINIMUM SEA

LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. FOR HAZARDS AND

WARNINGS, REFERENCE THE FLEET WEATHER CENTER SAN DIEGO HIGH WINDS

AND SEAS PRODUCT OR REFER TO LOCAL WMO DESIGNATED FORECAST AUTHORITY.

THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE

WITHIN THE NEXT 24 HOURS REMAINS LOW.

      (2) NO OTHER SUBTROPICAL SYSTEMS.

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.//

NNNN