ABPW10 PGTW 050200

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

SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH

PACIFIC OCEANS REISSUED/050200Z-050600ZJUN2026//

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) AN AREA OF CONVECTION (INVEST 91W) HAS PERSISTED NEAR 22.5N

120.8E, APPROXIMATELY 55 NM SOUTHWEST OF ISHIGAKIJIMA. THE SYSTEM IS

CURRENTLY CLASSIFIED AS A SUBTROPICAL DISTURBANCE, GENERALLY

CHARACTERIZED AS HAVING BOTH TROPICAL AND MIDLATITUDE CYCLONE

FEATURES. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A

WEAK, DISORGANIZED DISTURBANCE FORMING IN THE VICINITY OF TAIWAN,

SOUTH OF THE MEI-YU/BAIU BOUNDARY WHICH IS CURRENTLY POSITIONED OVER

THE EAST CHINA SEA. ANIMATED RADAR IMAGERY SHOWS BROAD CYCLONIC

TURNING CENTERED OVER SOUTHERN TAIWAN, WITH RAIN BANDS PRIMARILY

DISPLACED TO THE SOUTH OF THE ASSESSED CENTER. EARLIER SCATTEROMETER

WIND SPEED DATA REVEALED A SWATH OF 25 KT WINDS TO THE SOUTH OF THE

CENTER. THE ENVIRONMENT IS ASSESSED TO BE MARGINALLY FAVORABLE FOR

FURTHER DEVELOPMENT, WITH MODERATE (15-20 KTS) VERTICAL WIND SHEAR

(VWS), WARM (28-29 C) SEA SURFACE TEMPERATURES, WEAK POLEWARD AND

EQUATORWARD OUTFLOW ALOFT, AND LAND INTERACTION WITH TAIWAN. 91W IS

EXPECTED TO TRACK QUICKLY NORTHEASTWARD INTO THE EAST CHINA SEA WHERE

IT WILL BECOME EMBEDDED WITHIN AND TRACK ALONG THE MEI-YU/BAIU

BOUNDARY TOWARD SOUTHWESTERN JAPAN, LIKELY RETAINING SUBTROPICAL

CHARACTERISTICS. THE WIND FIELD IS LIKELY TO BE HIGHLY ASYMMETRIC,

WITH THE STRONGEST WINDS EXPECTED ON THE SOUTHEASTERN SIDE OF THE

SYSTEM. AS THE SYSTEM PASSES WEST OF OKINAWA, A BRIEF PERIOD OF

INTENSIFICATION IS POSSIBLE AS IT APPROACHES KYUSHU. FOR HAZARDS AND

WARNINGS, REFERENCE THE FLEET WEATHER CENTER SAN DIEGO HIGH WINDS AND

SEAS PRODUCT OR REFER TO LOCAL WMO DESIGNATED FORECAST AUTHORITY.

MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 28 KNOTS.

MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. THE

POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE

WITHIN THE NEXT 24 HOURS IS 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.

3. JUSTIFICATION FOR REISSUE: JUSTIFICATION FOR REISSUE: ADDED LOW

AREA IN PARA. 1.C.(1).//

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