Tropical Storm Beta Forecast Advisory Number 11

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Issued at 0900 UTC SUN SEP 20 2020


000
WTNT22 KNHC 200854
TCMAT2

TROPICAL STORM BETA FORECAST/ADVISORY NUMBER 11
NWS NATIONAL HURRICANE CENTER MIAMI FL AL222020
0900 UTC SUN SEP 20 2020

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

THE HURRICANE WATCH FROM PORT ARANSAS TO HIGH ISLAND...TEXAS HAS
BEEN DISCONTINUED.

THE STORM SURGE WATCH BETWEEN BAFFIN BAY AND PORT ARANSAS...TEXAS
HAS BEEN DISCONTINUED.

THE TROPICAL STORM WATCH SOUTH OF PORT MANSFIELD...TEXAS HAS BEEN
DISCONTINUED.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A STORM SURGE WARNING IS IN EFFECT FOR...
* PORT ARANSAS...TEXAS TO ROCKEFELLER WILDLIFE
REFUGE...LOUISIANA...INCLUDING COPANO BAY...ARANSAS BAY...SAN
ANTONIO BAY...MATAGORDA BAY... GALVESTON BAY...SABINE LAKE...AND
LAKE CALCASIEU

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* PORT ARANSAS TEXAS TO MORGAN CITY LOUISIANA

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* PORT MANSFIELD TO PORT ARANSAS TEXAS

A STORM SURGE WARNING MEANS THERE IS A DANGER OF LIFE-THREATENING
INUNDATION...FROM RISING WATER MOVING INLAND FROM THE
COASTLINE...DURING THE NEXT 36 HOURS IN THE INDICATED LOCATIONS. FOR
A DEPICTION OF AREAS AT RISK...PLEASE SEE THE NATIONAL WEATHER
SERVICE STORM SURGE WATCH/WARNING GRAPHIC...AVAILABLE AT
HURRICANES.GOV. THIS IS A LIFE-THREATENING SITUATION. PERSONS
LOCATED WITHIN THESE AREAS SHOULD TAKE ALL NECESSARY ACTIONS TO
PROTECT LIFE AND PROPERTY FROM RISING WATER AND THE POTENTIAL FOR
OTHER DANGEROUS CONDITIONS. PROMPTLY FOLLOW EVACUATION AND OTHER
INSTRUCTIONS FROM LOCAL OFFICIALS.

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS.

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

TROPICAL STORM CENTER LOCATED NEAR 27.0N 92.7W AT 20/0900Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 3 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 997 MB
MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT.
50 KT....... 80NE 0SE 0SW 0NW.
34 KT.......170NE 30SE 40SW 140NW.
12 FT SEAS.. 90NE 0SE 180SW 180NW.
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 27.0N 92.7W AT 20/0900Z
AT 20/0600Z CENTER WAS LOCATED NEAR 26.9N 92.5W

FORECAST VALID 20/1800Z 27.2N 93.4W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 70NE 0SE 0SW 20NW.
34 KT...140NE 30SE 40SW 120NW.

FORECAST VALID 21/0600Z 27.6N 94.6W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 60NE 0SE 0SW 20NW.
34 KT...130NE 40SE 40SW 90NW.

FORECAST VALID 21/1800Z 28.2N 95.6W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 60NE 0SE 0SW 20NW.
34 KT...110NE 40SE 40SW 50NW.

FORECAST VALID 22/0600Z 28.8N 96.2W...INLAND
MAX WIND 45 KT...GUSTS 55 KT.
34 KT... 80NE 40SE 40SW 20NW.

FORECAST VALID 22/1800Z 29.2N 96.2W...INLAND
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 0NE 50SE 50SW 0NW.

FORECAST VALID 23/0600Z 29.7N 95.5W...INLAND
MAX WIND 30 KT...GUSTS 40 KT.

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 24/0600Z 31.4N 92.9W...INLAND
MAX WIND 25 KT...GUSTS 35 KT.

OUTLOOK VALID 25/0600Z 33.8N 90.2W...POST-TROP/INLAND
MAX WIND 20 KT...GUSTS 30 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 27.0N 92.7W

INTERMEDIATE PUBLIC ADVISORY...WTNT32 KNHC/MIATCPAT2...AT 20/1200Z

NEXT ADVISORY AT 20/1500Z

$$
FORECASTER CANGIALOSI

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