Slow-moving cold front brings dangerous flood threats and heavy rain across Texas

A slow-moving cold front is expected to bring widespread rain and thunderstorms across Texas, with flood watches covering large parts of North, Central and South Texas through Thursday or Friday. Forecasters expect 1 to 4 inches of rain in many areas, with isolated totals of 6 to 8 inches and intense rainfall rates that could cause dangerous, life-threatening flooding. Storms may also bring large hail, damaging winds and a lower risk of an isolated tornado, with timing varying across the region; officials urge residents to check flood risks and avoid roads that may inundate. Dallas is also expected to see rain beginning early Thursday. Farther northeast, the St. Louis region is forecast to receive 1 to 2 inches of rain through Friday morning, without widespread flash flooding, followed by a sunny, cooler weekend.
Forecasters said the heaviest Texas rain may arrive in two rounds: from Wednesday night through Thursday afternoon, then again Thursday night into Friday morning. Intense storms could produce rainfall rates of 2 to 4 inches per hour.
Storm timing varies locally: Kerrville, Uvalde and Fredericksburg could face severe storms as early as Wednesday night, while San Antonio and the I-35 corridor were not expected to face the main hazards before 5 a.m. Thursday.
A flash-flood warning was issued early Thursday for Montague and northwestern Cooke counties in North Texas, where flooding had already become an immediate concern.
The St. Louis forecast attributed the rain to a slow-moving cold front interacting with tropical moisture moving north from the Pacific and the remnants of Hurricane Polo.
Texas residents were advised to check whether they live in a floodplain and identify nearby roads prone to flooding so they can plan alternate routes.
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