Tropical Storm Beta headed to Texas Coast

No Wait Weather

HOUSTON (CW39) – 09/20/2020-9am update:

CURRENT WATCHES AND WARNINGS:

A Storm Surge Warning is in effect for:

Port Aransas, Texas to Rockefeller Wildlife Refuge, Louisiana, including Copano Bay, Aransas Bay, San Antonio Bay, Matagorda Bay, Galveston Bay, Sabine Lake, and Lake Calcasieu

A Tropical Storm Warning is in effect for:

Port Aransas Texas to Morgan City Louisiana A Tropical Storm Watch is in effect for… * Port Mansfield to Port Aransas Texas. Here is the latest track.

Tropical Storm Beta still has winds of 60mph and it’s approximately 200 miles southeast of Galveston. It’s nearly stationary and it has not intensified in the past 24 hours due to wind shear and dry air that’s worked itself in the circulation. Remember the cold front that came through? This is good news, since it will not be a major hurricane once it makes landfall. The main threat continues to be heavy rainfall the next few days.

Through Thursday, Beta is expected to produce rainfall accumulations of 8 to 12 inches with isolated totals of 15 inches from the middle Texas coast to southern Louisiana. Houston metro area will likely see 4 to 10 inches over the next five days. Forecasting rainfall amounts has been tricky and it remains challenging, but the rule continues to be heaviest rain along the coast, not as extreme north of I-10.

High tides, storm surge and swells will be a great concern. Storm surge from Matagorda Bay to Galveston, 2 to 4 feet are expected. Conditions along the coast are already deteriorating, with some minor flooding taking place.

Beta will likely stall or move extremely slowly once it makes landfall Tuesday morning. Hopefully by Tuesday night or Wednesday it move again, and it should be through Houston by Wednesday night or Thursday.

How about winds? Not a huge concern not damage expected like what Laura brought to Louisiana, but south of I-10, we could get 30-40mph winds with gusts close to 45mph. Power outages will be more of a concern along the coast, where winds could gust above 50mph.

Expect outer rain bands to begin today along the coast and progressively work their way inland. We should see breaks between the rain, but we’re looking at periods of rain from Monday through Thursday. Flash flooding could become as issue, but bayous should be able to handle the rainfall rates.

Stay weather-aware everyone!

[Image of WPC QPF U.S. rainfall potential]

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