Slow-Moving Storms Forecast to Bring Summer Rainfall Totals Across Parts of Texas

Slow-moving storms are forecast to drop a summer’s worth of rain over parts of Texas through Thursday, Cnn reported. Much of eastern, central and southwestern Texas could see downpours heavy enough to trigger flash flooding, with the greatest risk near the US-Mexico border in the Rio Grande Valley and the southern Edwards Plateau.

Austin, Houston and San Antonio could see at least localized flash flooding, especially on Monday and Tuesday.

The Hill Country is also at risk, though the highest totals could stay just southwest of the region. A flood watch has been issued through Thursday evening for more than 5 million people in south-central Texas including Austin, Del Rio, San Angelo and San Antonio. Texas Gov.

Greg Abbott activated the state’s emergency response on Sunday to make state resources available, including water rescue teams and helicopters. “Texans are urged never to drive or walk through flooded roadways, as floodwaters may be deeper and move more rapidly than they appear,” a release from the governor’s office said.

Abundant Gulf moisture is clashing with a stalled front and a pocket of energy in the upper atmosphere, fueling the heavy rain threat.

Weather systems can produce rainfall rates of 2 to 4 inches per hour under these conditions. The week’s most serious heavy rain threat is expected in southwest Texas from near Interstate 10 to the Rio Grande River along the Mexico border, including Del Rio. A Level 3 of 4 flash flood risk has been issued through Wednesday by the Weather Prediction Center.

Rain in southwest Texas on Monday is expected to intensify in the late evening and continue overnight. Rainfall totals in southwest Texas could reach 2 to 6 inches, with locally higher amounts up to 10 inches possible. The higher-end totals would be close to what Del Rio typically sees from June to August.