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POST-TROPICAL CYCLONE GERT FORECAST/ADVISORY NUMBER 20
NWS NATIONAL HURRICANE CENTER MIAMI FL AL082017
2100 UTC THU AUG 17 2017
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
POST-TROPICAL CYCLONE CENTER LOCATED NEAR 44.8N 46.0W AT 17/2100Z
POSITION ACCURATE WITHIN 25 NM
PRESENT MOVEMENT TOWARD THE EAST-NORTHEAST OR 60 DEGREES AT 34 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 985 MB
MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT.
50 KT....... 40NE 60SE 0SW 0NW.
34 KT.......120NE 200SE 120SW 20NW.
12 FT SEAS..180NE 120SE 660SW 90NW.
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 44.8N 46.0W AT 17/2100Z
AT 17/1800Z CENTER WAS LOCATED NEAR 44.0N 48.0W
FORECAST VALID 18/0600Z 47.8N 40.5W...POST-TROP/EXTRATROP
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...180NE 240SE 120SW 90NW.
FORECAST VALID 18/1800Z 50.6N 36.2W...POST-TROP/EXTRATROP
MAX WIND 40 KT...GUSTS 50 KT.
34 KT...180NE 180SE 120SW 120NW.
FORECAST VALID 19/0600Z 52.5N 35.0W...POST-TROP/EXTRATROP
MAX WIND 35 KT...GUSTS 45 KT.
34 KT...210NE 120SE 60SW 150NW.
FORECAST VALID 19/1800Z...DISSIPATED
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 44.8N 46.0W
THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON THIS SYSTEM. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE
FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER
SERVICE...UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC.
$$
FORECASTER ZELINSKY
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