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TROPICAL STORM IONA FORECAST/ADVISORY NUMBER  16
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   CP012025
ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL
0300 UTC THU JUL 31 2025
 
TROPICAL STORM CENTER LOCATED NEAR 11.8N 164.8W AT 31/0300Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 275 DEGREES AT  20 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB
MAX SUSTAINED WINDS  45 KT WITH GUSTS TO  55 KT.
34 KT....... 50NE  30SE  30SW  50NW.
4 M SEAS....220NE 100SE  70SW 160NW.
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 11.8N 164.8W AT 31/0300Z
AT 31/0000Z CENTER WAS LOCATED NEAR 11.7N 163.8W
 
FORECAST VALID 31/1200Z 12.2N 167.7W
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 40NE  20SE  20SW  40NW.
 
FORECAST VALID 01/0000Z 12.8N 171.3W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE  20SE  20SW  40NW.
 
FORECAST VALID 01/1200Z 13.4N 174.8W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE  20SE  10SW  30NW.
 
FORECAST VALID 02/0000Z 14.2N 177.7W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE  20SE  10SW  30NW.
 
FORECAST VALID 02/1200Z 15.0N 179.6E
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 50NE  20SE  10SW  30NW.
 
FORECAST VALID 03/0000Z 16.0N 177.3E
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 50NE  20SE  10SW  40NW.
 
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 04/0000Z 18.2N 172.6E
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE  10SE   0SW  30NW.
 
OUTLOOK VALID 05/0000Z 20.6N 168.1E
MAX WIND  30 KT...GUSTS  40 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 11.8N 164.8W
 
NEXT ADVISORY AT 31/0900Z
 
$$
FORECASTER GIBBS (CPHC)
 
 
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