Truckers face another day of delays as heavy rain persists in areas from Texas to the Great Lakes.
A strong cold front and the remnants of Hurricane Pamela will continue to pull abundant moisture from the Gulf of Mexico, producing torrential downpours as well as more potential flash flooding and potential road closures.
The heaviest rain will impact drivers in portions of southern Texas and northwestern Arkansas, which received record daily rainfall Wednesday — 4.56 inches in Fort Smith, Arkansas, and 2.64 inches in San Antonio. Because the ground is saturated, additional rainfall of 1 to 3 inches will make these areas prone to flash flooding, which already occurred near San Antonio early Thursday morning. The National Weather Service still has flash flood watches posted for these areas.
Downpours could also hit places like St. Louis, Chicago and Indianapolis later Thursday into Friday, leading to localized flash flooding. Severe storms are possible Friday, with large hail, destructive winds and isolated tornadoes from the Missouri Bootheel and western Tennessee to Louisville, Kentucky, and Cincinnati.
Major lanes of concern
• Interstate 35 from San Antonio to Austin.
• Interstate 10 from San Antonio to Columbus, Texas.
• Interstate 37 from San Antonio to Campbellton, Texas.
• Interstate 40 from Fort Smith to Russellville, Arkansas.
Other notable weather
Several more inches of snow could pile up Thursday in western portions of Wyoming and Colorado, with lighter amounts in the northern Rockies.
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