Tropical Storm Isaac Forecast Advisory Number 4

By | September 26, 2024

000
WTNT25 KNHC 262050
TCMAT5

TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER   4
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL102024
2100 UTC THU SEP 26 2024

TROPICAL STORM CENTER LOCATED NEAR 37.5N  50.6W AT 26/2100Z
POSITION ACCURATE WITHIN  30 NM

PRESENT MOVEMENT TOWARD THE EAST OR  80 DEGREES AT   9 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  995 MB
MAX SUSTAINED WINDS  45 KT WITH GUSTS TO  55 KT.
34 KT....... 30NE  40SE  50SW  40NW.
12 FT SEAS.. 60NE 120SE 180SW 210NW.
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 37.5N  50.6W AT 26/2100Z
AT 26/1800Z CENTER WAS LOCATED NEAR 37.4N  51.2W

FORECAST VALID 27/0600Z 37.6N  48.7W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT...  0NE  30SE   0SW   0NW.
34 KT... 40NE  50SE  50SW  40NW.

FORECAST VALID 27/1800Z 38.2N  45.5W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT...  0NE  40SE  30SW   0NW.
34 KT... 50NE  70SE  60SW  50NW.

FORECAST VALID 28/0600Z 39.2N  42.0W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT...  0NE  20SE   0SW   0NW.
50 KT... 30NE  40SE  40SW  30NW.
34 KT... 80NE  90SE  80SW  60NW.

FORECAST VALID 28/1800Z 40.5N  38.7W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT...  0NE  20SE   0SW   0NW.
50 KT... 40NE  50SE  40SW  40NW.
34 KT...110NE 130SE  90SW 100NW.

FORECAST VALID 29/0600Z 41.9N  35.9W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 50NE  50SE  40SW  50NW.
34 KT...150NE 130SE 110SW 130NW.

FORECAST VALID 29/1800Z 43.0N  33.8W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 50NE  60SE  50SW  50NW.
34 KT...160NE 120SE 110SW 140NW.

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 30/1800Z 44.2N  27.8W...POST-TROP/EXTRATROP
MAX WIND  50 KT...GUSTS  60 KT.
50 KT...  0NE  50SE  50SW   0NW.
34 KT...130NE 100SE  90SW 120NW.

OUTLOOK VALID 01/1800Z 45.5N  22.5W...POST-TROP/EXTRATROP
MAX WIND  40 KT...GUSTS  50 KT.
34 KT...110NE  90SE  80SW 120NW.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 37.5N  50.6W

NEXT ADVISORY AT 27/0300Z

$$
FORECASTER D. ZELINSKY


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