Atlantic Basin Tropical Cyclones

Tropical Depression Eighteen Forecast Advisory


000
WTNT23 KNHC 230833
TCMAT3

TROPICAL DEPRESSION EIGHTEEN FORECAST/ADVISORY NUMBER   3
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL182021
0900 UTC THU SEP 23 2021

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL DEPRESSION CENTER LOCATED NEAR 10.5N  36.4W AT 23/0900Z
POSITION ACCURATE WITHIN  40 NM

PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT  13 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB
MAX SUSTAINED WINDS  30 KT WITH GUSTS TO  40 KT.
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 10.5N  36.4W AT 23/0900Z
AT 23/0600Z CENTER WAS LOCATED NEAR 10.4N  35.7W

FORECAST VALID 23/1800Z 10.8N  38.4W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 50NE   0SE   0SW  40NW.

FORECAST VALID 24/0600Z 11.3N  40.9W
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 70NE   0SE   0SW  50NW.

FORECAST VALID 24/1800Z 11.9N  43.3W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE   0SE   0SW   0NW.
34 KT... 80NE  40SE   0SW  50NW.

FORECAST VALID 25/0600Z 12.5N  45.2W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 20NE  20SE   0SW  20NW.
34 KT... 80NE  50SE  20SW  40NW.

FORECAST VALID 25/1800Z 13.0N  46.9W
MAX WIND  70 KT...GUSTS  85 KT.
50 KT... 30NE  20SE  10SW  20NW.
34 KT... 80NE  60SE  30SW  50NW.

FORECAST VALID 26/0600Z 13.7N  48.3W
MAX WIND  80 KT...GUSTS 100 KT.
50 KT... 40NE  30SE  20SW  30NW.
34 KT... 90NE  80SE  40SW  60NW.

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 27/0600Z 15.0N  50.8W
MAX WIND  90 KT...GUSTS 110 KT.

OUTLOOK VALID 28/0600Z 16.9N  53.9W
MAX WIND 100 KT...GUSTS 120 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 10.5N  36.4W

NEXT ADVISORY AT 23/1500Z

$$
FORECASTER CANGIALOSI




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