Ringling Bros.

TD-14 Strengthens Into Tropical Storm Marco

| August 21, 2020 @ 9:58 pm

SUMMARY OF 1100 PM EDT…0300 UTC…INFORMATION

LOCATION…18.7N 84.9W
ABOUT 180 MI…290 KM SE OF COZUMEL MEXICO
MAXIMUM SUSTAINED WINDS…40 MPH…65 KM/H
PRESENT MOVEMENT…NNW OR 330 DEGREES AT 13 MPH…20 KM/H
MINIMUM CENTRAL PRESSURE…1003 MB…29.62 INCHES

WATCHES AND WARNINGS

A Hurricane Watch is in effect for…
* Punta Herrero to Cancun Mexico

A Tropical Storm Warning is in effect for…
* Punta Herrero to Dzilam Mexico

DISCUSSION AND OUTLOOK

At 1100 PM EDT (0300 UTC), the center of Tropical Storm Marco was located near latitude 18.7 North, longitude 84.9 West. Marco is moving toward the north-northwest near 13 mph (20 km/h). A slightly slower northwestward motion is expected for the next day or so, followed by an increase in forward speed by early next week. On the forecast track, the center of Marco will approach the east coast of the Yucatan Peninsula of Mexico on Saturday. The center will then cross the northeastern part of the Yucatan Peninsula Saturday night and move over the central Gulf of Mexico toward the northwestern Gulf on Sunday and Monday.

Maximum sustained winds have increased to near 40 mph (65 km/h) with higher gusts. Additional strengthening is forecast during the next couple of days as the system approaches the Yucatan peninsula and Marco could be near hurricane strength when it moves over the central Gulf of Mexico on Sunday.

Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center.

The estimated minimum central pressure is 1003 MB (29.62 inches) based on reports from the Hurricane Hunter plane.

HAZARDS AFFECTING LAND

WIND: Tropical storm conditions are expected to first reach the eastern Yucatan coast within the warning area by Saturday afternoon and will spread northward and westward within the warning area Saturday night, making outside preparations difficult or dangerous. Hurricane conditions are also possible within the hurricane watch area by late Saturday.

RAINFALL: Marco is expected to produce the following rainfall accumulations through Sunday:

Eastern portions of the Mexican states of Quintana Roo and Yucatan: 3 to 6 inches, isolated maximum totals of 10 inches. This rainfall may result in areas of flash flooding.

Northeast Nicaragua and the Cayman Islands: 1 to 2 inches.

Information taken from the latest National Hurricane Center Public Advisory as of 10:00 pm.

Category: ALL POSTS, Severe Weather, Tropical

About the Author ()

Scott Martin is an operational meteorologist, professional graphic artist, musician, husband, and father. Not only is Scott a member of the National Weather Association, but he is also the Central Alabama Chapter of the NWA president. Scott is also the co-founder of Racecast Weather, which provides forecasts for many racing series across the USA. He also supplies forecasts for the BassMaster Elite Series events including the BassMaster Classic.

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