000
WTNT23 KNHC 170230
TCMAT3

HURRICANE GERT FORECAST/ADVISORY NUMBER  17
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL082017
0300 UTC THU AUG 17 2017

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

HURRICANE CENTER LOCATED NEAR 40.1N  58.4W AT 17/0300Z
POSITION ACCURATE WITHIN  25 NM

PRESENT MOVEMENT TOWARD THE EAST-NORTHEAST OR  65 DEGREES AT  32 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  967 MB
EYE DIAMETER 10 NM
MAX SUSTAINED WINDS  90 KT WITH GUSTS TO 110 KT.
64 KT....... 30NE  30SE   0SW   0NW.
50 KT....... 50NE  60SE  15SW  20NW.
34 KT....... 90NE 120SE  80SW  50NW.
12 FT SEAS..120NE 240SE 300SW 240NW.
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 40.1N  58.4W AT 17/0300Z
AT 17/0000Z CENTER WAS LOCATED NEAR 39.5N  60.3W

FORECAST VALID 17/1200Z 42.6N  52.1W
MAX WIND  75 KT...GUSTS  90 KT.
64 KT... 30NE  35SE  15SW   0NW.
50 KT... 50NE  70SE  40SW  30NW.
34 KT... 90NE 140SE 110SW  60NW.

FORECAST VALID 18/0000Z 46.5N  43.8W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 40NE  60SE  50SW   0NW.
34 KT... 90NE 150SE 120SW  60NW.

FORECAST VALID 18/1200Z 50.5N  38.0W...POST-TROP/EXTRATROP
MAX WIND  50 KT...GUSTS  60 KT.
50 KT...  0NE  50SE   0SW   0NW.
34 KT...150NE 150SE 120SW 100NW.

FORECAST VALID 19/0000Z 52.5N  35.0W...POST-TROP/EXTRATROP
MAX WIND  45 KT...GUSTS  55 KT.
34 KT...200NE 150SE 120SW 150NW.

FORECAST VALID 20/0000Z 53.5N  31.5W...POST-TROP/EXTRATROP
MAX WIND  40 KT...GUSTS  50 KT.
34 KT...150NE 150SE 180SW 200NW.

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 21/0000Z...MERGED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 40.1N  58.4W

NEXT ADVISORY AT 17/0900Z

$$
FORECASTER PASCH