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BULLETIN
Tropical Depression Grace Advisory Number  12
NWS National Hurricane Center Miami FL       AL072021
500 AM EDT Mon Aug 16 2021
 
...GRACE APPROACHING THE SOUTHERN COAST OF THE DOMINICAN REPUBLIC...
...FLASH FLOODING AND MUDSLIDES POSSIBLE ACROSS HISPANIOLA TODAY...
 
 
SUMMARY OF 500 AM EDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...17.4N 70.2W
ABOUT 160 MI...260 KM ESE OF PORT AU PRINCE HAITI
ABOUT 510 MI...825 KM E OF MONTEGO BAY JAMAICA
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 15 MPH...24 KM/H
MINIMUM CENTRAL PRESSURE...1010 MB...29.83 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Tropical Storm Watch is in effect for...
* Entire coast of the Dominican Republic
* Entire coast of Haiti
 
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, in this case within 24 hours.
 
Interests elsewhere in Cuba, Jamaica, and the Cayman Islands should
monitor the progress of Grace.
 
For storm information specific to your area, please monitor
products issued by your national meteorological service.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 500 AM EDT (0900 UTC), the center of Tropical Depression Grace
was located near latitude 17.4 North, longitude 70.2 West. The
depression is moving toward the west near 15 mph (24 km/h). A west 
to west-northwestward motion is expected over the next several 
days. 
 
Maximum sustained winds are near 35 mph (55 km/h) with higher gusts.
Little change in strength is forecast during the next day or so. 
Slow strengthening is expected to begin by Tuesday.  
 
The estimated minimum central pressure is 1010 mb (29.83 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
Key messages for Grace can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC
and on the web at
www.hurricanes.gov/graphics_at2.shtml?key_messages.
 
WIND:  Tropical storm conditions are possible in the Dominican
Republic today, and in Haiti today into tonight.
 
RAINFALL:  The system is expected to produce the following rainfall
amounts:
 
The system is expected to produce the following rainfall amounts:

Over Haiti and the Dominican Republic...5 to 10 inches of rain with 
isolated maximum totals of 15 inches are expected across the 
southern terrain areas through Tuesday. This heavy rainfall may lead 
to flash and urban flooding, and possible mudslides.

Over Cuba, Jamaica, and the Cayman Islands....2 to 4 inches of rain 
with isolated maximum totals of 6 inches are expected through 
Thursday.
 
SURF:  Swells generated by Grace will continue to affect portions of 
Hispaniola and Puerto Rico over the next day or so, and will spread 
westward to Jamaica and the southern portions of Cuba. 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 800 AM EDT.
Next complete advisory at 1100 AM EDT.
 
$$
Forecaster Latto
 
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