Hurricane Gaston

Forecast Advisory 18

---

157
WTNT22 KNHC 270251
TCMAT2

TROPICAL STORM GASTON FORECAST/ADVISORY NUMBER 18
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016
0300 UTC SAT AUG 27 2016

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL STORM CENTER LOCATED NEAR 27.0N 50.8W AT 27/0300Z
POSITION ACCURATE WITHIN 15 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 315 DEGREES AT 13 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 997 MB
MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT.
50 KT....... 50NE 30SE 0SW 30NW.
34 KT.......130NE 80SE 40SW 100NW.
12 FT SEAS..150NE 120SE 120SW 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 27.0N 50.8W AT 27/0300Z
AT 27/0000Z CENTER WAS LOCATED NEAR 26.6N 50.3W

FORECAST VALID 27/1200Z 28.0N 52.5W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 60NE 30SE 20SW 30NW.
34 KT...130NE 80SE 40SW 100NW.

FORECAST VALID 28/0000Z 29.2N 54.1W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 30NE 20SE 0SW 20NW.
50 KT... 70NE 40SE 30SW 40NW.
34 KT...130NE 100SE 60SW 100NW.

FORECAST VALID 28/1200Z 30.2N 55.2W
MAX WIND 80 KT...GUSTS 100 KT.
64 KT... 30NE 25SE 20SW 25NW.
50 KT... 70NE 50SE 30SW 40NW.
34 KT...130NE 100SE 80SW 100NW.

FORECAST VALID 29/0000Z 30.8N 55.7W
MAX WIND 90 KT...GUSTS 110 KT.
50 KT... 70NE 60SE 40SW 50NW.
34 KT...140NE 120SE 90SW 100NW.

FORECAST VALID 30/0000Z 31.8N 55.4W
MAX WIND 95 KT...GUSTS 115 KT.
50 KT... 80NE 80SE 60SW 60NW.
34 KT...150NE 150SE 100SW 100NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY

OUTLOOK VALID 31/0000Z 33.0N 52.0W
MAX WIND 90 KT...GUSTS 110 KT.

OUTLOOK VALID 01/0000Z 35.0N 47.5W
MAX WIND 80 KT...GUSTS 100 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 27.0N 50.8W

NEXT ADVISORY AT 27/0900Z

$$
FORECASTER BLAKE