Big Storms to March toward Northwestern Gulf Coast

By , Meteorologist
Mar 19, 2010; 9:20 AM ET
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The same storm that is spreading heavy snow from the Rockies into the Plains will also trigger locally damaging storms on its southeastern flank into the weekend.

The main threats with the storms include blinding downpours, locally damaging wind gusts over 50 mph, and large hail. While a widespread tornado outbreak is not expected, there is some risk for a few isolated tornadoes.

Sporadic power outages can occur where winds blow hard enough to down large tree branches and power lines. Roof damage may also occur in some areas.

Sudden downpours will slow travel along portions of the heavily traveled I-10 and I-20 corridors. The heaviest storms can also trigger localized flash flooding.

Late this afternoon and tonight, the threat for storms will focus from eastern Oklahoma to northern Texas. Dallas will lie in the path of storms.

The threat for storms will increase by Saturday afternoon over an area spanning central Arkansas to the coast of Texas and western Louisiana. Houston, Galveston and Shreveport are some of the cities at risk.

Storms will concentrate over the central Gulf Coast Saturday night, threatening places like New Orleans and Mobile, Ala.

The conditions for severe weather may diminish by Sunday over the southern Atlantic Seaboard.

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