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Tropical Storm Sam Forecast Advisory


000
WTNT23 KNHC 232050
TCMAT3

TROPICAL STORM SAM FORECAST/ADVISORY NUMBER   5
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL182021
2100 UTC THU SEP 23 2021

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL STORM CENTER LOCATED NEAR 11.1N  39.7W AT 23/2100Z
POSITION ACCURATE WITHIN  15 NM

PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT  14 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB
MAX SUSTAINED WINDS  50 KT WITH GUSTS TO  60 KT.
50 KT....... 20NE   0SE   0SW   0NW.
34 KT....... 50NE  30SE   0SW  50NW.
12 FT SEAS.. 90NE   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 11.1N  39.7W AT 23/2100Z
AT 23/1800Z CENTER WAS LOCATED NEAR 11.0N  39.1W

FORECAST VALID 24/0600Z 11.5N  41.9W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 30NE   0SE   0SW   0NW.
34 KT... 60NE  40SE   0SW  50NW.

FORECAST VALID 24/1800Z 11.9N  44.2W
MAX WIND  75 KT...GUSTS  90 KT.
64 KT... 20NE   0SE   0SW   0NW.
50 KT... 30NE  20SE   0SW  20NW.
34 KT... 70NE  40SE  30SW  50NW.

FORECAST VALID 25/0600Z 12.3N  46.0W
MAX WIND  90 KT...GUSTS 110 KT.
64 KT... 25NE  15SE  10SW  15NW.
50 KT... 40NE  30SE  20SW  30NW.
34 KT... 70NE  50SE  40SW  50NW.

FORECAST VALID 25/1800Z 12.6N  47.4W
MAX WIND 100 KT...GUSTS 120 KT.
64 KT... 25NE  20SE  10SW  20NW.
50 KT... 40NE  30SE  20SW  30NW.
34 KT... 90NE  70SE  50SW  70NW.

FORECAST VALID 26/0600Z 13.1N  48.7W
MAX WIND 105 KT...GUSTS 130 KT.
50 KT... 50NE  40SE  30SW  40NW.
34 KT...100NE  80SE  60SW  70NW.

FORECAST VALID 26/1800Z 13.7N  50.0W
MAX WIND 110 KT...GUSTS 135 KT.
50 KT... 50NE  40SE  30SW  40NW.
34 KT...100NE  90SE  60SW  80NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY

OUTLOOK VALID 27/1800Z 15.2N  52.5W
MAX WIND 110 KT...GUSTS 135 KT.

OUTLOOK VALID 28/1800Z 17.5N  55.5W
MAX WIND 110 KT...GUSTS 135 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 11.1N  39.7W

NEXT ADVISORY AT 24/0300Z

$$
FORECASTER PAPIN




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