Tropical Storm Isaias Forecast Advisory Number 20

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Issued at 0300 UTC SUN AUG 02 2020


014
WTNT24 KNHC 020253
TCMAT4

TROPICAL STORM ISAIAS FORECAST/ADVISORY NUMBER 20
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092020
0300 UTC SUN AUG 02 2020

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* BOCA RATON TO THE VOLUSIA/FLAGLER COUNTY LINE FLORIDA
* BIMINI...THE BERRY ISLANDS...AND GRAND BAHAMA ISLAND

A STORM SURGE WATCH IS IN EFFECT FOR...
* JUPITER INLET TO PONTE VEDRA BEACH FLORIDA

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* NORTH OF OCEAN REEF TO SOUTH OF BOCA RATON FLORIDA
* LAKE OKEECHOBEE
* VOLUSIA/FLAGLER COUNTY LINE TO PONTE VEDRA BEACH FLORIDA

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* NORTH OF PONTE VEDRA BEACH FLORIDA TO SOUTH SANTEE RIVER SOUTH
CAROLINA

INTERESTS ELSEWHERE ALONG THE SOUTHEAST AND MID-ATLANTIC COASTS OF
THE UNITED STATES SHOULD MONITOR THE PROGRESS OF ISAIAS. ADDITIONAL
WATCHES OR WARNINGS MAY BE REQUIRED TONIGHT OR SUNDAY.

A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA. PREPARATIONS TO PROTECT LIFE
AND PROPERTY SHOULD BE RUSHED TO COMPLETION.

A STORM SURGE WATCH MEANS THERE IS A POSSIBILITY OF LIFE-
THREATENING INUNDATION...FROM RISING WATER MOVING INLAND FROM THE
COASTLINE...IN THE INDICATED LOCATIONS DURING THE NEXT 48 HOURS.
FOR A DEPICTION OF AREAS AT RISK...PLEASE SEE THE NATIONAL WEATHER
SERVICE STORM SURGE WATCH/WARNING GRAPHIC...AVAILABLE AT
HURRICANES.GOV.

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA.

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.

TROPICAL STORM CENTER LOCATED NEAR 25.5N 79.1W AT 02/0300Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT 8 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 995 MB
MAX SUSTAINED WINDS 60 KT WITH GUSTS TO 75 KT.
50 KT....... 40NE 30SE 0SW 30NW.
34 KT.......100NE 50SE 0SW 90NW.
12 FT SEAS..150NE 45SE 0SW 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 25.5N 79.1W AT 02/0300Z
AT 02/0000Z CENTER WAS LOCATED NEAR 25.3N 78.9W

FORECAST VALID 02/1200Z 26.6N 79.9W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 20NE 15SE 0SW 15NW.
50 KT... 40NE 30SE 20SW 30NW.
34 KT...100NE 70SE 30SW 100NW.

FORECAST VALID 03/0000Z 28.0N 80.5W...ON COAST
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 20NE 15SE 0SW 15NW.
50 KT... 40NE 30SE 20SW 30NW.
34 KT...100NE 70SE 30SW 100NW.

FORECAST VALID 03/1200Z 29.7N 80.8W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 40NE 30SE 20SW 30NW.
34 KT...100NE 70SE 30SW 80NW.

FORECAST VALID 04/0000Z 32.0N 80.0W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 40NE 30SE 20SW 30NW.
34 KT...100NE 80SE 30SW 80NW.

FORECAST VALID 04/1200Z 35.3N 78.1W...INLAND
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 30NE 30SE 0SW 0NW.
34 KT...100NE 100SE 30SW 60NW.

FORECAST VALID 05/0000Z 39.7N 74.8W...INLAND
MAX WIND 40 KT...GUSTS 50 KT.
34 KT... 50NE 50SE 0SW 0NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY

OUTLOOK VALID 06/0000Z 47.0N 66.0W...POST-TROP/INLAND
MAX WIND 35 KT...GUSTS 45 KT.

OUTLOOK VALID 07/0000Z 51.5N 57.5W...POST-TROP/INLAND
MAX WIND 30 KT...GUSTS 40 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 25.5N 79.1W

INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 02/0600Z

NEXT ADVISORY AT 02/0900Z

$$
FORECASTER PASCH

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