Tropical Storm Iona Forecast Advisory Number 5

000
WTPA21 PHFO 280837
TCMCP1
 
TROPICAL STORM IONA FORECAST/ADVISORY NUMBER   5
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   CP012025
ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL
0900 UTC MON JUL 28 2025
 
TROPICAL STORM CENTER LOCATED NEAR 10.9N 149.3W AT 28/0900Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT  10 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1001 MB
MAX SUSTAINED WINDS  45 KT WITH GUSTS TO  55 KT.
34 KT....... 40NE  20SE  20SW  40NW.
4 M SEAS.... 60NE   0SE   0SW  60NW.
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 149.3W AT 28/0900Z
AT 28/0600Z CENTER WAS LOCATED NEAR 10.9N 148.8W
 
FORECAST VALID 28/1800Z 10.9N 150.6W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 15NE   0SE   0SW  15NW.
34 KT... 60NE  40SE  30SW  60NW.
 
FORECAST VALID 29/0600Z 10.9N 152.7W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 10NE   0SE   0SW  10NW.
50 KT... 25NE  10SE  10SW  20NW.
34 KT... 80NE  40SE  30SW  70NW.
 
FORECAST VALID 29/1800Z 11.0N 155.1W
MAX WIND  75 KT...GUSTS  90 KT.
64 KT... 10NE   0SE   0SW  10NW.
50 KT... 30NE  15SE  10SW  25NW.
34 KT... 80NE  50SE  40SW  70NW.
 
FORECAST VALID 30/0600Z 11.2N 158.0W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 10NE   0SE   0SW  10NW.
50 KT... 25NE  10SE  10SW  20NW.
34 KT... 80NE  50SE  40SW  70NW.
 
FORECAST VALID 30/1800Z 11.6N 161.2W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 20NE   0SE   0SW  15NW.
34 KT... 70NE  30SE  20SW  60NW.
 
FORECAST VALID 31/0600Z 12.0N 164.8W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 60NE  30SE  20SW  50NW.
 
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 01/0600Z 12.9N 172.0W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 50NE  30SE   0SW  40NW.
 
OUTLOOK VALID 02/0600Z 14.5N 179.5W...POST-TROP/REMNT LOW
MAX WIND  30 KT...GUSTS  40 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 10.9N 149.3W
 
NEXT ADVISORY AT 28/1500Z
 
$$
FORECASTER JELSEMA (CPHC)