For the third straight day, thunderstorms have posed what meteorologists call life-threatening conditions in the Hill Country, where flooding earlier this month killed at least 131 people.

Major flooding is expected for parts of Texas near the Frio River, the National Weather Service warns. See which counties are at risk Monday.

The flood warning is in effect until Tuesday, July 15, at 7 a.m. for the Frio River. NWS said that major flooding is forecast for the Frio River below Dry Frio, with the National Water Prediction Service predicting the river will hit 18.6 feet at around 5 p.m. The major flood stage for the Frio River is 17 feet.