Central Pacific Basin Tropical Cyclones

Hurricane Iona Forecast Advisory


036 
WTPA21 PHFO 290253
TCMCP1
 
HURRICANE IONA FORECAST/ADVISORY NUMBER   8
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   CP012025
ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL
0300 UTC TUE JUL 29 2025
 
HURRICANE CENTER LOCATED NEAR 10.9N 152.2W AT 29/0300Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT  11 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  985 MB
MAX SUSTAINED WINDS  75 KT WITH GUSTS TO  90 KT.
64 KT....... 15NE  15SE   0SW  15NW.
50 KT....... 25NE  25SE  15SW  25NW.
34 KT....... 50NE  50SE  30SW  50NW.
4 M SEAS.... 80NE  40SE  70SW  80NW.
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 10.9N 152.2W AT 29/0300Z
AT 29/0000Z CENTER WAS LOCATED NEAR 10.9N 151.6W
 
FORECAST VALID 29/1200Z 10.9N 153.8W
MAX WIND  95 KT...GUSTS 115 KT.
64 KT... 20NE  20SE  10SW  20NW.
50 KT... 30NE  30SE  20SW  30NW.
34 KT... 70NE  50SE  40SW  60NW.
 
FORECAST VALID 30/0000Z 10.9N 156.3W
MAX WIND 105 KT...GUSTS 130 KT.
64 KT... 20NE  20SE  10SW  20NW.
50 KT... 30NE  30SE  20SW  30NW.
34 KT... 80NE  60SE  40SW  70NW.
 
FORECAST VALID 30/1200Z 10.9N 159.3W
MAX WIND  95 KT...GUSTS 115 KT.
64 KT... 20NE  20SE  10SW  20NW.
50 KT... 30NE  30SE  20SW  30NW.
34 KT... 80NE  60SE  40SW  70NW.
 
FORECAST VALID 31/0000Z 11.2N 162.9W
MAX WIND  75 KT...GUSTS  90 KT.
64 KT... 20NE  10SE   5SW  20NW.
50 KT... 30NE  25SE  15SW  25NW.
34 KT... 70NE  50SE  40SW  70NW.
 
FORECAST VALID 31/1200Z 11.5N 166.7W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 20NE  15SE  10SW  20NW.
34 KT... 70NE  50SE  40SW  60NW.
 
FORECAST VALID 01/0000Z 12.1N 170.4W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE   0SE   0SW  20NW.
34 KT... 60NE  40SE  30SW  60NW.
 
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 02/0000Z 13.7N 178.0W
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 50NE  30SE  20SW  50NW.
 
OUTLOOK VALID 03/0000Z 15.9N 176.5E
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 50NE  20SE  20SW  50NW.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 10.9N 152.2W
 
NEXT ADVISORY AT 29/0900Z
 
$$
FORECASTER JELSEMA (CPHC)
  



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