NHC/NOAA 11AM Update – Gonzalo producing Heavy Rain Across the Southern Windward Islands

Gonzalo is causing gusty winds across portions of the southern Windward Islands. Interests in the southern Windward Islands should monitor the progress of Gonzalo and follow any advice given by local officials.

BULLETIN
Tropical Storm Gonzalo Advisory Number 16
NWS National Hurricane Center Miami FL AL072020
1100 AM AST Sat Jul 25 2020

…GONZALO PRODUCING HEAVY RAIN ACROSS THE SOUTHERN WINDWARD
ISLANDS…

SUMMARY OF 1100 AM AST…1500 UTC…INFORMATION
———————————————–
LOCATION…10.5N 60.5W
ABOUT 55 MI…90 KM E OF TRINIDAD
MAXIMUM SUSTAINED WINDS…40 MPH…65 KM/H
PRESENT MOVEMENT…W OR 275 DEGREES AT 18 MPH…30 KM/H
MINIMUM CENTRAL PRESSURE…1009 MB…29.80 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY…

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT…

A Tropical Storm Warning is in effect for…
* Tobago
* Grenada and its dependencies

A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within the next 12 hours.

Interests elsewhere in the Windward Islands should monitor the progress of this system.

Learn more here

For storm information specific to your area, please monitor products issued by your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 1100 AM AST (1500 UTC), the center of Tropical Storm Gonzalo was located near latitude 10.5 North, longitude 60.5 West. Gonzalo is moving toward the west near 18 mph (30 km/h). A general westward to
west-northwestward motion is expected today and tonight. On the forecast track, Gonzalo will move across the southern Windward Islands this afternoon or evening and over the southeastern Caribbean Sea on Sunday.

Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Little change in strength is forecast before Gonzalo reaches the southern Windward Islands later today. Weakening is expected after Gonzalo moves over the southeastern Caribbean Sea, and the system is forecast to dissipate by Sunday night.

Tropical-storm-force winds extend outward up to 25 miles (35 km) from the center.

The estimated minimum central pressure is 1009 mb (29.80 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Gonzalo can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT2, WMO header WTNT42 KNHC, and on the web a www.hurricanes.gov/text/MIATCDAT2.shtml.

WIND: Tropical storm conditions are expected within portions of the Tropical Storm Warning area today.

RAINFALL: Gonzalo is expected to produce total rain accumulations of 2 to 4 inches over Trinidad and Tobago and far northeastern Venezuela. Gonzalo is also expected to produce 1 to 3 inches over the southern Windward Islands, the Leeward Antilles, and the remainder of far northern Venezuela. This includes Saint Vincent and the Grenadines, Grenada, Aruba, Bonaire, and Curacao. Isolated maximum amounts of 6 inches are possible in the mountainous terrain of Trinidad and Tobago and far northeastern Venezuela, which may lead to flash flooding.

NEXT ADVISORY
————-
Next intermediate advisory at 200 PM AST.
Next complete advisory at 500 PM AST.

Forecaster Zelinsky

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