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HURRICANE LAURA FORECAST/ADVISORY NUMBER  23
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL132020
1500 UTC TUE AUG 25 2020
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
A STORM SURGE WARNING IS IN EFFECT FROM SAN LUIS PASS TEXAS TO THE
MOUTH OF THE MISSISSIPPI RIVER...INCLUDING AREAS INSIDE THE PORT
ARTHUR HURRICANE FLOOD PROTECTION SYSTEM.
 
A HURRICANE WARNING IS IN EFFECT FROM SAN LUIS PASS TEXAS TO
INTRACOASTAL CITY LOUISIANA.
 
A TROPICAL STORM WARNING IS IN EFFECT FROM SARGENT TEXAS TO SAN LUIS
PASS AND FROM EAST OF INTRACOASTAL CITY TO THE MOUTH OF THE
MISSISSIPPI RIVER.
 
A STORM SURGE WATCH IS IN EFFECT FROM FREEPORT TEXAS TO SAN LUIS
PASS.
 
THE TROPICAL STORM WARNING FOR THE DRY TORTUGAS HAS BEEN
DISCONTINUED.
 
THE TROPICAL STORM WARNING FOR CUBA HAS BEEN DISCONTINUED. 
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A STORM SURGE WARNING IS IN EFFECT FOR...
* SAN LUIS PASS TEXAS TO THE MOUTH OF THE MISSISSIPPI RIVER
 
A HURRICANE WARNING IS IN EFFECT FOR...
* SAN LUIS PASS TEXAS TO INTRACOASTAL CITY LOUISIANA
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* SARGENT TEXAS TO SAN LUIS PASS
* EAST OF INTRACOASTAL CITY LOUISIANA TO THE MOUTH OF THE
MISSISSIPPI RIVER
 
A STORM SURGE WATCH IS IN EFFECT FOR...
* FREEPORT TEXAS TO SAN LUIS PASS
* MOUTH OF THE MISSISSIPPI RIVER TO OCEAN SPRINGS MISSISSIPPI
* LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND LAKE BORGNE
 
A HURRICANE WATCH IS IN EFFECT FOR...
* EAST OF INTRACOASTAL CITY TO WEST OF MORGAN CITY LOUISIANA
 
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 HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA.  A WARNING IS TYPICALLY ISSUED
36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF
TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE
PREPARATIONS DIFFICULT OR DANGEROUS.  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.
 
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA.  A WATCH IS TYPICALLY ISSUED 48 HOURS
BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE
WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR
DANGEROUS.
 
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA.
 
HURRICANE CENTER LOCATED NEAR 23.7N  87.0W AT 25/1500Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT  14 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  990 MB
MAX SUSTAINED WINDS  65 KT WITH GUSTS TO  80 KT.
64 KT....... 40NE   0SE   0SW   0NW.
50 KT....... 60NE  60SE  40SW  40NW.
34 KT.......150NE 140SE  60SW  90NW.
12 FT SEAS..210NE 100SE  30SW 150NW.
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 23.7N  87.0W AT 25/1500Z
AT 25/1200Z CENTER WAS LOCATED NEAR 23.3N  86.3W
 
FORECAST VALID 26/0000Z 24.6N  89.2W
MAX WIND  75 KT...GUSTS  90 KT.
64 KT... 40NE  30SE  30SW  30NW.
50 KT... 60NE  60SE  40SW  40NW.
34 KT...150NE 140SE  60SW 100NW.
 
FORECAST VALID 26/1200Z 26.0N  91.5W
MAX WIND  90 KT...GUSTS 110 KT.
64 KT... 40NE  30SE  30SW  30NW.
50 KT... 60NE  60SE  40SW  40NW.
34 KT...140NE 130SE  60SW 100NW.
 
FORECAST VALID 27/0000Z 28.0N  93.3W
MAX WIND 100 KT...GUSTS 120 KT.
64 KT... 35NE  30SE  30SW  30NW.
50 KT... 60NE  60SE  50SW  50NW.
34 KT...130NE 120SE  60SW 100NW.
 
FORECAST VALID 27/1200Z 30.5N  93.9W...INLAND
MAX WIND  80 KT...GUSTS 100 KT.
64 KT... 30NE  30SE  20SW  20NW.
50 KT... 50NE  50SE  30SW  40NW.
34 KT...100NE 110SE  50SW  70NW.
 
FORECAST VALID 28/0000Z 33.1N  93.6W...INLAND
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 30NE  40SE  30SW  30NW.
 
FORECAST VALID 28/1200Z 35.2N  92.1W...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 29/1200Z 37.5N  83.5W...INLAND
MAX WIND  25 KT...GUSTS  35 KT.
 
OUTLOOK VALID 30/1200Z 40.5N  69.5W...POST-TROP/EXTRATROP
MAX WIND  40 KT...GUSTS  50 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.7N  87.0W
 
INTERMEDIATE PUBLIC ADVISORY...WTNT33 KNHC/MIATCPAT3...AT 25/1800Z
 
NEXT ADVISORY AT 25/2100Z
 
$$
FORECASTER BEVEN
 
 
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