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Hurricane Grace Intermediate Advisory Number 32A
NWS National Hurricane Center Miami FL AL072021
700 AM CDT Sat Aug 21 2021
...GRACE MOVING FARTHER INLAND OVER EASTERN MEXICO...
...STRONG WINDS AND HEAVY RAINS SPREADING ACROSS PORTIONS OF
SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION
ABOUT 60 MI...100 KM ENE OF MEXICO CITY MEXICO
MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H
PRESENT MOVEMENT...WSW OR 250 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...980 MB...28.93 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
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
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere withing the warning area.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 700 AM CDT (1200 UTC), the center of Hurricane Grace was located
inland near latitude 19.9 North, longitude 98.3 West. Grace is
moving toward the west-southwest near 14 mph (22 km/h), and this
general motion is expected to continue through tonight. On the
forecast track, Grace will continue to move farther inland and reach
central Mexico later today.
Maximum sustained winds have decreased to near 90 mph (150 km/h)
with higher gusts. Continued rapid weakening is expected as Grace
moves inland over the mountains of central Mexico today, and the
hurricane is forecast to weaken to a tropical storm by this
afternoon, and then dissipate tonight or Sunday.
Hurricane-force winds extend outward up to 30 miles (45 km) from
the center and tropical-storm-force winds extend outward up to 150
miles (240 km).
The estimated minimum central pressure is 980 mb (28.93 inches).
HAZARDS AFFECTING LAND
Key messages for Grace can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT2, WMO header WTNT42 KNHC and
on the web at www.hurricanes.gov/graphics_at2.shtml?key_messages.
STORM SURGE: A dangerous storm surge will raise water levels by as
much as 2 to 4 ft above normal tide levels in areas of onshore
winds during the next few hours near where Grace made landfall. Near
the coast, the surge will be accompanied by large and destructive
WIND: Hurricane conditions are expected to continue within portions
of the hurricane warning area in mainland Mexico over the next few
hours. Tropical storm conditions are expected to continue within
the tropical storm warning area in mainland Mexico for the next
RAINFALL: Grace is expected to produce the following rainfall
Over Veracruz, Puebla, Tlaxcala, Hidalgo, Queretaro, and eastern San
Luis Potosi...6 to 12 inches of rain with isolated maximum totals
of 18 inches are expected through Sunday. Heavy rainfall from
Grace will result in significant flash and urban flooding as well
SURF: High surf generated by Grace will affect the southern Gulf of
Mexico coastline through the weekend. These swells are likely to
cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.
Next complete advisory at 1000 AM CDT.