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Tropical Depression Grace Public Advisory Number 12
2021-08-16 10:47:42| National Hurricane Center (Atlantic)
Issued at 500 AM EDT Mon Aug 16 2021 000 WTNT32 KNHC 160847 TCPAT2 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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