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Tropical Storm Gonzalo Public Advisory Number 8A
2020-07-23 19:33:25| National Hurricane Center (Atlantic)
Issued at 200 PM AST Thu Jul 23 2020 000 WTNT32 KNHC 231733 TCPAT2 BULLETIN Tropical Storm Gonzalo Intermediate Advisory Number 8A NWS National Hurricane Center Miami FL AL072020 200 PM AST Thu Jul 23 2020 ...GONZALO A LITTLE WEAKER... SUMMARY OF 200 PM AST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...9.7N 48.8W ABOUT 850 MI...1370 KM E OF THE SOUTHERN WINDWARD ISLANDS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... None. SUMMARY OF WATCHES AND WARNING IN EFFECT... A Hurricane Watch is in effect for... * Barbados * St. Vincent and the Grenadines A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Interests in the Windward Islands should monitor the progress of this system. Additional watches or warnings will likely be required for some of these islands later today. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 PM AST (1800 UTC), the center of Tropical Storm Gonzalo was located near latitude 9.7 North, longitude 48.8 West. Gonzalo is moving toward the west near 14 mph (22 km/h). A westward to west-northwestward motion with an increase in forward speed is expected through the weekend. On the forecast track, the center of Gonzalo will approach the southern Windward Islands Friday night and move across the islands Saturday and Saturday evening. Satellite-derived wind data indicate that maximum sustained winds have decreased to near 60 mph (95 km/h) with higher gusts. Some re-strengthening is possible during the next couple of days, and there is still a chance that Gonzalo could become a hurricane. The satellite wind data indicate that Gonzalo is an even smaller storm than previously thought, and tropical-storm-force winds only extend outward up to 25 miles (35 km) from the center. The estimated minimum central pressure is 1000 mb (29.53 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Gonzalo can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC. WIND: Hurricane or tropical storm conditions are possible within the watch area on Saturday. RAINFALL: Gonzalo is expected to produce total rain accumulations of 2 to 5 inches, with isolated maximum amounts of 7 inches in Barbados and the Windward Islands from Friday night through Sunday night. Gonzalo is also expected to produce total rain accumulations of 1 to 2 inches in Trinidad and Tobago. Rainfall in Barbados and the Windward Islands could lead to life-threatening flash floods. NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Berg
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