Hurricane Gert

Forecast Advisory 13

---

549
WTNT23 KNHC 160232
TCMAT3

HURRICANE GERT FORECAST/ADVISORY NUMBER 13
NWS NATIONAL HURRICANE CENTER MIAMI FL AL082017
0300 UTC WED AUG 16 2017

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

HURRICANE CENTER LOCATED NEAR 34.8N 70.3W AT 16/0300Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE NORTHEAST OR 35 DEGREES AT 13 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 979 MB
MAX SUSTAINED WINDS 75 KT WITH GUSTS TO 90 KT.
64 KT....... 20NE 20SE 0SW 0NW.
50 KT....... 50NE 50SE 0SW 0NW.
34 KT.......100NE 100SE 60SW 40NW.
12 FT SEAS..180NE 180SE 120SW 120NW.
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 34.8N 70.3W AT 16/0300Z
AT 16/0000Z CENTER WAS LOCATED NEAR 34.1N 71.1W

FORECAST VALID 16/1200Z 36.3N 67.6W
MAX WIND 80 KT...GUSTS 100 KT.
64 KT... 30NE 35SE 15SW 0NW.
50 KT... 50NE 60SE 30SW 30NW.
34 KT...100NE 130SE 60SW 60NW.

FORECAST VALID 17/0000Z 38.5N 62.2W
MAX WIND 85 KT...GUSTS 105 KT.
64 KT... 30NE 35SE 15SW 0NW.
50 KT... 50NE 60SE 30SW 30NW.
34 KT...100NE 130SE 60SW 60NW.

FORECAST VALID 17/1200Z 41.1N 54.8W
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 30NE 40SE 30SW 0NW.
50 KT... 50NE 70SE 50SW 30NW.
34 KT...100NE 140SE 130SW 70NW.

FORECAST VALID 18/0000Z 44.9N 46.8W...POST-TROP/EXTRATROP
MAX WIND 65 KT...GUSTS 80 KT.
50 KT... 50NE 70SE 50SW 0NW.
34 KT...100NE 160SE 140SW 70NW.

FORECAST VALID 19/0000Z 53.0N 35.5W...POST-TROP/EXTRATROP
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...130NE 150SE 110SW 70NW.

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 20/0000Z 55.5N 31.5W...POST-TROP/EXTRATROP
MAX WIND 45 KT...GUSTS 55 KT.

OUTLOOK VALID 21/0000Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 34.8N 70.3W

NEXT ADVISORY AT 16/0900Z

$$
FORECASTER BEVEN