A storm system developing Monday morning will slowly move east bringing several rounds of severe weather through Oklahoma and Texas for the next several days. Additionally, it is increasing likely flash floods will threaten parts of the southern U.S. due to slow moving thunderstorms that develop with this system.
There is a slight risk for severe weather Monday from central Oklahoma to central Texas, including Oklahoma City and Wichita Falls. The threat includes damaging winds and large hail. While widespread tornadic activity is not expected, brief tornadoes cannot be ruled out.
The threat will slide south and east on Tuesday toward the major cities in Texas in the I-35 corridor, including Dallas, Waco, Austin and San Antonio. The threat includes damaging winds, large hail and possible tornadoes. The severe threat is expected to linger in this region as we head toward Wednesday.
Ahead of the developing low pressure, numerous thunderstorms and rain showers will develop across the central U.S. The system will have trouble moving east due to a developing ridge of high pressure on the East Coast.
As a result, thunderstorms that do develop will be slow moving and produce high rainfall amounts. There is an increasing likelihood of flash flooding and river flooding over the next several days from Texas to Illinois.
A flood watch has already been issued for northeast Oklahoma to central Illinois Monday morning. Nearly a month ago, parts of the central U.S., especially Arkansas, received incredible rainfall amounts — locally over 1 foot. There are still some flood warnings for rivers in Louisiana, Mississippi and Arkansas due to rivers still running high. With year-to-date precipitation in this region roughly one to two times the average, the threshold for flooding remains rather low.
Locally, 4 to 6 inches of rain is expected in parts of Louisiana, Arkansas and Mississippi through Friday.
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SOURCE: ABC News, Daniel Manzo