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Chill falls over the Atlantic as the official season heads towards close
Days since last H. Landfall - US: Any 211 (Idalia) , Major: 211 (Idalia) Florida - Any: 211 (Idalia) Major: 211 (Idalia)
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#1017613 (Received by flhurricane at: 12:36 PM 18.Sep.2020)
TCMAT4

SUBTROPICAL STORM ALPHA SPECIAL FORECAST/ADVISORY NUMBER 1
NWS NATIONAL HURRICANE CENTER MIAMI FL AL242020
1630 UTC FRI SEP 18 2020

THERE ARE NO COASTAL TROPICAL CYCLONE WATCHES OR WARNINGS IN EFFECT.

INTERESTS IN PORTUGAL SHOULD MONITOR THE PROGRESS OF ALPHA.
ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND IN PRODUCTS FROM
THE PORTUGUESE INSTITUTE FOR SEA AND ATMOSPHERE AT WWW.IPMA.PT.

SUBTROPICAL STORM CENTER LOCATED NEAR 39.9N 9.3W AT 18/1630Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE NORTHEAST OR 35 DEGREES AT 15 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 999 MB
MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT.
34 KT....... 30NE 30SE 30SW 0NW.
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 39.9N 9.3W AT 18/1630Z
AT 18/1200Z CENTER WAS LOCATED NEAR 38.9N 10.3W

FORECAST VALID 19/0000Z 41.5N 7.5W...POST-TROP/INLAND
MAX WIND 30 KT...GUSTS 40 KT.

FORECAST VALID 19/1200Z 44.2N 4.2W...POST-TROP/EXTRATROP
MAX WIND 30 KT...GUSTS 40 KT.

FORECAST VALID 20/0000Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 39.9N 9.3W

NEXT ADVISORY AT 18/2100Z

$$
FORECASTER BLAKE