NWS Warns of Major Flooding Along Texas' Frio River

Days after the Guadalupe River flooded and claimed dozens of lives, another major river in Texas has triggered warnings from the National Weather Service.

While a flash flood warning for northeastern Kinney County and northwestern Uvalde County expired at 1 p.m. Monday, a flood advisory remained in effect for Real and Edwards counties, as worries about a cresting Frio River continued to grow.

Here's what we know.

NWS warns of Frio River flash floods

The Frio River at Concan and the Frio River below Dry Frio near Uvalde were expected to reach major flood stage, the weather service said. Forecasters urged those along the river to seek higher ground.

Meanwhile, thunderstorms continued to soak the flash flood warning area, where 3 to 5 inches of rain had already fallen, the weather service said. Doppler weather radar indicated as of 11 a.m. that at least another inch of rainfall was possible.

Flash flooding was already occurring, according to radar and automated rain gauges in the area. Communities in the warning area included Laguna, Montell, Reagan Wells and Turkey Mountain.

The weather service also issued a flood advisory for Edwards and Real counties until 2:30 p.m., citing minor flooding in low-lying areas with poor drainage and water overwhelming roadways.

Up to 2 inches of rain have already fallen in the advisory area, with an additional inch expected. Affected areas include Devil's Sinkhole State Natural Area and Prade Ranch.

Earlier Monday, around 9:15 a.m., the weather service reported seeing heavy rainfall along the Rio Grande and in the southern Edwards Plateau, with radar estimating rainfall rates of up to 3 inches an hour.

Forecasters continued to urge the public in the affected areas to avoid low water crossings and stay away from flooded areas.

Garner State Park is closed to day visitors because of flooding, according to the Texas Parks & Wildlife website.

Where is the Frio River? Where does the Frio River start and end?

Like the Guadalupe River, the Frio River stretches through the Texas Hill Country. It begins in the Edwards Plateau near Leakey in north-central Real County and flows southeast. It empties into the Atascosa River within the Nueces River Basin, near the town of Three Rivers in central Live Oak County.