Damaging storms possible Monday night, into Tuesday

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SAN ANTONIO — The Northern Hill Country now is under a severe thunderstorm watch until 10 p.m., with a threat of large, damaging hail and wind, the National Weather Service reported in a tweet shortly after 3 p.m. Monday.

Severe storms are possible Monday before midnight, then a slight chance of showers and thunderstorms after midnight. Some of these storms may be severe across the Hill Country, Edwards Plateau and Interstate 35 corridor, the weather service said.

The storms could bring large hail and damaging winds stronger than 58 miles per hour, according to Jon Zeitler, science and operations officer for the agency's office serving San Antonio and Austin.

“Some storms could also move slowly and produce minor flash flooding,” Zeitler wrote in a 5:30 a.m. advisory.

The afternoon storms could occur along and west of Interstate 35 and north of U.S. 90, an area that includes San Antonio and Austin. Zeitler predicted they will develop over the Hill Country late in the afternoon before slowly moving east and southeast.

Moist, unstable, windy air will converge with a cold front to cause the storms to develop quickly and powerfully, Zeitler wrote.

“While there is some uncertainty on timing and location, we see consistent signals from the models for the storms to occur,” he wrote.

High temperatures are predicted to reach the upper 80s in Bexar County and about 80 degrees in the Hill Country. Low temperatures will drop to the mid-60s in Bexar County and the lower 60s in the Hill Country.

The NWS also is predicting elevated fire weather conditions Thursday and Saturday along the Rio Grande Plains and Edwards Plateau. Low humidity and gusty winds will increase the potential for wildfires on those days.

amalik@express-news.net

Twitter: @AliaAtSAEN