River Flooding Expected as Remnants of Hurricane Pamela Move into South Central Texas
New Braunfels Office of Emergency Management (NBOEM) warned today that remnants of Hurricane Pamela, forecast to move into Central Texas over the next several days, could cause serious “river impacts.”
“Stay flood aware over the next three days,” NBOEM warned.
A flash-flood watch issued at 3:44 a.m. today goes into effect at 7 a.m. Wednesday and ends at 7 p.m. Thursday.
The watch area includes Atascosa, Bexar, Blanco, Burnet, Comal, Gillespie, Hays, Kendall, Llano, Travis and Williamson counties.
According to a graphic prepared by the West Gulf River Forecast Center, the Guadalupe River is at moderate risk for flooding.
“Rainfall over the next three days may impact several rivers as it crosses Texas, significant flooding possible, but exact location will depend on rainfall intensity and location,” the agency said.
The U.S. National Weather Service Austin-San Antonio (NWS) said to expect scattered showers and storms today. Small hail and gusty winds cannot be completely ruled out, but the threat is low.
There is also a low chance for storms to produce locally heavy rainfall today along and north of San Antonio to La Grange and a 15% chance that two to five inches of rain could occur over a small area and produce minor flash flooding.
Additional heavy rainfall leading to flash-flooding is possible Wednesday into Thursday.
The greatest threat for this is currently forecast to be across the Hill Country, southern Edwards Plateau, and Rio Grande late on Wednesday night. However, some locally heavy rainfall cannot be ruled out late tonight through tomorrow.
An axis of two- to five-inches of rainfall is currently forecast from the Hill Country to the Rio Grande through Thursday, with localized five- to seven-inch totals expected.
There is a potential for pockets of even higher amounts in this axis. The 1.5- to 3.5-inches of rainfall is forecast through the I-35 corridor, with lesser amounts east.
“It should be stressed that this is a fluid forecast and adjustments are still possible on where the axis of higher rainfall amounts occur,” NWS said.