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Tropical Storm GRACE


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BULLETIN
Tropical Storm Grace Advisory Number  33
NWS National Hurricane Center Miami FL       AL072021
1000 AM CDT Sat Aug 21 2021
 
...GRACE WEAKENING RAPIDLY OVER LAND BUT STILL CAUSING VERY
HEAVY RAINS AND FLOODING OVER PORTIONS OF EAST-CENTRAL MEXICO...
 
 
SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...19.7N 98.9W
ABOUT 25 MI...40 KM NNE of CIUDAD DE MEXICO
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...WSW OR 250 DEGREES AT 13 MPH...20 KM/H
MINIMUM CENTRAL PRESSURE...990 MB...29.24 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
The Hurricane Warning for the coast of mainland Mexico from Puerto
Veracruz to Cabo Rojo is replaced by a Tropical Storm Warning.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Tropical Storm Warning is in effect for...
* The coast of mainland Mexico from Puerto Veracruz to Barra del
Tordo
 
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 1000 AM CDT (1500 UTC), the center of Tropical Storm Grace was
located near latitude 19.7 North, longitude 98.9 West.  Grace is
moving toward the west-southwest near 13 mph (20 km/h) and a 
generally westward motion is expected into early Sunday.  On the 
forecast track, the center will move over central and west-central 
Mexico through tonight.

Maximum sustained winds have decreased to near 70 mph (110 km/h) 
with higher gusts.  Continued rapid weakening is expected while 
the system moves over the mountains of central and west-central 
Mexico today and tonight, and Grace is forecast to weaken to a 
tropical depression tonight and dissipate by early Sunday.
 
Tropical-storm-force winds extend outward up to 150 miles (240 km)
from the center.
 
The estimated minimum central pressure is 990 mb (29.24 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: Storm surge flooding should continue to subside along
the coast of Mexico.
 
WIND:  Tropical storm conditions are expected to continue within
the tropical storm warning area along the coast of Mexico for the
next few hours.
 
RAINFALL: Grace is expected to produce the following rainfall
amounts:
 
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.  Over Ciudad de Mexico, 1
to 3 inches with isolated maximum totals of 5 inches.  Heavy
rainfall from Grace will result in significant flash and urban
flooding as well as mudslides.
 
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 ADVISORY
-------------
Next intermediate advisory at 100 PM CDT.
Next complete advisory at 400 PM CDT.
 
$$
Forecaster Pasch
 
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