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TROPICAL STORM IONA FORECAST/ADVISORY NUMBER  18
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   CP012025
ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL
1500 UTC THU JUL 31 2025
 
TROPICAL STORM CENTER LOCATED NEAR 12.7N 168.7W AT 31/1500Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT  18 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1001 MB
MAX SUSTAINED WINDS  45 KT WITH GUSTS TO  55 KT.
34 KT....... 40NE   0SE   0SW  40NW.
4 M SEAS....220NE 100SE  60SW 150NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
 
REPEAT...CENTER LOCATED NEAR 12.7N 168.7W AT 31/1500Z
AT 31/1200Z CENTER WAS LOCATED NEAR 12.5N 167.8W
 
FORECAST VALID 01/0000Z 13.3N 171.5W
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 40NE   0SE   0SW  40NW.
 
FORECAST VALID 01/1200Z 14.0N 174.9W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 30NE   0SE   0SW  30NW.
 
FORECAST VALID 02/0000Z 14.7N 178.0W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 30NE   0SE   0SW  30NW.
 
FORECAST VALID 02/1200Z 15.5N 179.2E
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 30NE   0SE   0SW  30NW.
 
FORECAST VALID 03/0000Z 16.4N 176.5E
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE   0SE   0SW  30NW.
 
FORECAST VALID 03/1200Z 17.2N 174.2E
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE   0SE   0SW  30NW.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
 
OUTLOOK VALID 04/1200Z 19.0N 169.7E
MAX WIND  30 KT...GUSTS  40 KT.
 
OUTLOOK VALID 05/1200Z 21.4N 165.9E...POST-TROP/REMNT LOW
MAX WIND  30 KT...GUSTS  40 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 12.7N 168.7W
 
NEXT ADVISORY AT 31/2100Z
 
$$
FORECASTER BEVEN
 
 
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