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HURRICANE GRACE FORECAST/ADVISORY NUMBER  30
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL072021
2100 UTC FRI AUG 20 2021
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
NONE.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A HURRICANE WARNING IS IN EFFECT FOR...
* THE COAST OF MAINLAND MEXICO FROM PUERTO VERACRUZ TO CABO ROJO
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF MAINLAND MEXICO FROM NORTH OF CABO ROJO TO BARRA DEL
TORDO
 
A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN 12 TO 24
HOURS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED
TO COMPLETION.
 
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHING THE WARNING AREA...IN THIS CASE WITHIN 12
TO 24 HOURS.
 
HURRICANE CENTER LOCATED NEAR 20.5N  95.1W AT 20/2100Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 265 DEGREES AT   9 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  979 MB
EYE DIAMETER  25 NM
MAX SUSTAINED WINDS  80 KT WITH GUSTS TO 100 KT.
64 KT....... 20NE   0SE   0SW  20NW.
50 KT....... 60NE  30SE  30SW  50NW.
34 KT.......160NE  90SE  80SW 100NW.
12 FT SEAS..240NE  90SE  90SW 240NW.
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 20.5N  95.1W AT 20/2100Z
AT 20/1800Z CENTER WAS LOCATED NEAR 20.6N  94.6W
 
FORECAST VALID 21/0600Z 20.4N  96.6W...NEAR THE COAST
MAX WIND  90 KT...GUSTS 110 KT.
64 KT... 20NE  10SE  10SW  20NW.
50 KT... 40NE  30SE  20SW  30NW.
34 KT...130NE  70SE  60SW  90NW.
 
FORECAST VALID 21/1800Z 19.9N  98.9W...INLAND
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 50NE  30SE  20SW  40NW.
 
FORECAST VALID 22/0600Z 19.5N 101.9W...INLAND
MAX WIND  30 KT...GUSTS  40 KT.
 
FORECAST VALID 22/1800Z...DISSIPATED
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.5N  95.1W
 
INTERMEDIATE PUBLIC ADVISORY...WTNT32 KNHC/MIATCPAT2...AT 21/0000Z
 
NEXT ADVISORY AT 21/0300Z
 
$$
FORECASTER REINHART/CANGIALOSI
 
 
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