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Severe thunderstorms erupting across the central United States will threaten localized flooding near the border of Oklahoma and Texas into Saturday night.
Severe thunderstorms will slowly wane across the Plains into Saturday evening.
One corridor of violent thunderstorms will erupt over northern Texas and neighboring parts of southern Oklahoma. A separate zone of severe weather will erupt over South Dakota and Nebraska.
Severe thunderstorms near and to the south of the Red River will be capable of producing damaging winds, a few instances of hail and an isolated tornado. This includes in Dallas and Wichita Falls, Texas.
However, there is likely to be many more reports of flash flooding as the thunderstorms congregate together and prolong heavy rainfall into Saturday night.
“Heavy rainfall rates up to 2 inches per hour at times will cause flash flooding in some communities,” AccuWeather Storm Warning Meteorologist Brian Koochel said.
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“Widespread rainfall totals of 1 to 3 inches are expected, with localized areas that see more persistent thunderstorm activity receiving 6 inches or more,” Koochel said.
This amount of rainfall will easily run off soil that is already saturated, causing rises on small streams and rivers.
"Rapidly rising water may lead to major flooding and evacuations in a few communities," AccuWeather Senior Meteorologist Kristina Pydynowski said.
Individuals with plans to travel across the Plains along stretches of interstates 20, 30, 35, 40 and 44 should be aware of the threat for adverse weather to affect a portion of their trip.
Some roads, especially those that drain poorly and are low-lying, could be impassable due to high water.
"Adding to the danger is that the flooding rain will be unleashed at night, making it difficult for motorists to see that a road is flooding or bridge is damaged," Pydynowski said.
The core of heaviest rainfall will shift toward the lower Mississippi Valley by the end of the weekend.
Downpours may become even more frequent across the South as the storm continues to sweep eastward early in the week.
While violent thunderstorms threaten the southern Plains, another zone of severe weather is expected to erupt farther north from South Dakota to Nebraska and neighboring areas into Saturday evening.
Cities at risk include Rapid City, South Dakota, and Valentine and Scottsbluff, Nebraska.
In addition to damaging winds, the strongest thunderstorms will unleash large hail and a tornado or two.
"The risk for flooding will be more widespread in the southern Plains, but localized issues may develop in this region," Pydynowski said. "Regardless, motorists should be prepared for reduced visibility and a heightened risk of hydroplaning."
The severe thunderstorms will transition to pockets of steadier rain over eastern South Dakota and into Minnesota later on Saturday night.
The risk for isolated severe thunderstorms will then focus on the central High Plains to end the weekend.
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