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HURRICANE GRACE FORECAST/ADVISORY NUMBER  24
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL072021
0900 UTC THU AUG 19 2021
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
NONE.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A HURRICANE WARNING IS IN EFFECT FOR...
* YUCATAN PENINSULA OF MEXICO FROM CANCUN TO PUNTA HERRERO... 
INCLUDING COZUMEL
 
A HURRICANE WATCH IS IN EFFECT FOR...
* THE COAST OF MAINLAND MEXICO FROM PUERTO VERACRUZ TO CABO ROJO
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* YUCATAN PENINSULA OF MEXICO FROM NORTH OF CANCUN TO CAMPECHE
* YUCATAN PENINSULA OF MEXICO FROM SOUTH OF PUNTA HERRERO TO PUERTO
COSTA MAYA
 
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* SOUTHERN COAST CUBAN PROVINCE OF PINAR DEL RIO...AS WELL AS ISLA
DE LA JUVENTUD
* THE COAST OF MAINLAND MEXICO NORTH OF CABO ROJO TO PUERTO DE
ALTAMIRA
 
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 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 HURRICANE WARNING WILL LIKELY BE REQUIRED FOR PORTIONS 
OF THE WATCH AREA LATER THIS MORNING OR AFTERNOON.
 
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.
 
INTERESTS ELSEWHERE IN EASTERN MAINLAND MEXICO SHOULD MONITOR THE
PROGRESS OF GRACE.
 
HURRICANE CENTER LOCATED NEAR 20.0N  87.2W AT 19/0900Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT  15 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  986 MB
MAX SUSTAINED WINDS  70 KT WITH GUSTS TO  85 KT.
64 KT....... 30NE  20SE   0SW  20NW.
50 KT....... 70NE  30SE  20SW  30NW.
34 KT.......120NE  90SE  60SW  80NW.
12 FT SEAS..195NE 120SE  75SW 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 20.0N  87.2W AT 19/0900Z
AT 19/0600Z CENTER WAS LOCATED NEAR 19.9N  86.4W
 
FORECAST VALID 19/1800Z 20.3N  89.7W...INLAND
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 50NE  30SE   0SW  30NW.
34 KT...120NE  70SE  20SW  80NW.
 
FORECAST VALID 20/0600Z 20.6N  92.6W...OVER WATER
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 40NE  30SE   0SW  30NW.
34 KT...120NE  60SE  40SW  70NW.
 
FORECAST VALID 20/1800Z 20.5N  95.0W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 20NE  15SE   0SW  15NW.
50 KT... 40NE  30SE  20SW  30NW.
34 KT...120NE  80SE  40SW  80NW.
 
FORECAST VALID 21/0600Z 20.1N  97.3W...INLAND
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 40NE  20SE   0SW  20NW.
34 KT...120NE  90SE  40SW 100NW.
 
FORECAST VALID 21/1800Z 19.7N 100.1W...POST-TROP/INLAND
MAX WIND  20 KT...GUSTS  30 KT.
 
FORECAST VALID 22/0600Z...DISSIPATED
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.0N  87.2W
 
INTERMEDIATE PUBLIC ADVISORY...WTNT32 KNHC/MIATCPAT2...AT 19/1200Z
 
NEXT ADVISORY AT 19/1500Z
 
$$
FORECASTER STEWART
 
 
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