Hurricane Helene Forecast Advisory Number 11

By | September 26, 2024

000
WTNT24 KNHC 260253
TCMAT4

HURRICANE HELENE FORECAST/ADVISORY NUMBER  11
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092024
0300 UTC THU SEP 26 2024

HURRICANE CENTER LOCATED NEAR 23.1N  86.6W AT 26/0300Z
POSITION ACCURATE WITHIN  20 NM

PRESENT MOVEMENT TOWARD THE NORTH OR 360 DEGREES AT   8 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  972 MB
MAX SUSTAINED WINDS  75 KT WITH GUSTS TO  90 KT.
64 KT....... 30NE  30SE   0SW   0NW.
50 KT....... 60NE  60SE  40SW  40NW.
34 KT.......210NE 300SE  90SW 120NW.
12 FT SEAS..240NE 270SE 150SW 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 23.1N  86.6W AT 26/0300Z
AT 26/0000Z CENTER WAS LOCATED NEAR 22.8N  86.7W

FORECAST VALID 26/1200Z 25.4N  86.1W
MAX WIND  95 KT...GUSTS 115 KT.
64 KT... 30NE  40SE  25SW  20NW.
50 KT... 80NE  90SE  50SW  40NW.
34 KT...270NE 270SE 120SW 120NW.

FORECAST VALID 27/0000Z 29.5N  84.5W
MAX WIND 115 KT...GUSTS 140 KT.
64 KT... 40NE  50SE  25SW  20NW.
50 KT... 80NE 100SE  50SW  40NW.
34 KT...270NE 270SE 140SW 140NW.

FORECAST VALID 27/1200Z 34.3N  84.7W...INLAND
MAX WIND  50 KT...GUSTS  70 KT.
50 KT... 40NE  40SE  20SW  20NW.
34 KT...200NE 200SE  50SW  60NW.

FORECAST VALID 28/0000Z 36.7N  87.1W...POST-TROP/EXTRATROP
MAX WIND  30 KT...GUSTS  50 KT.

FORECAST VALID 28/1200Z 36.8N  88.5W...POST-TROP/EXTRATROP
MAX WIND  25 KT...GUSTS  35 KT.

FORECAST VALID 29/0000Z 36.7N  87.0W...POST-TROP/EXTRATROP
MAX WIND  20 KT...GUSTS  30 KT.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 125 NM
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY

OUTLOOK VALID 30/0000Z 36.7N  84.9W...POST-TROP/EXTRATROP
MAX WIND  15 KT...GUSTS  20 KT.

OUTLOOK VALID 01/0000Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.1N  86.6W

INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 26/0600Z

NEXT ADVISORY AT 26/0900Z

$$
FORECASTER PASCH


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