San Antonio, Texas – Strong to severe thunderstorms are expected to develop across South Central Texas beginning Friday evening, with storm activity continuing into Saturday. Forecasters warn that large hail and damaging wind gusts will be the primary threats, especially in areas west of Interstate 35.
Friday Evening Storm Risk
A marginal severe weather risk, classified as Level 1 out of 5, is in effect after 6 p.m. Friday. The greatest concern initially centers on Val Verde County and parts of the western Hill Country. While widespread severe weather is not anticipated, isolated storms may quickly intensify.
Residents in these areas could see bursts of heavy rain, frequent lightning, and pockets of large hail. Storms may develop rapidly during the late evening hours, and conditions could change quickly within a short period of time.
Saturday: Broader Risk Across South Central Texas
On Saturday afternoon and evening, the marginal severe risk is expected to expand eastward and impact a wider portion of the region. Cities including Austin, San Antonio, New Braunfels, and surrounding communities fall within the potential impact zone.
During this time, damaging wind gusts and large hail remain the main concerns. Although not every location will experience severe conditions, isolated storms could produce brief but intense impacts. Forecasters emphasize that storm coverage is likely to increase through Saturday evening before gradually diminishing overnight.
Travel Concerns Along Major Highways
Motorists traveling along key roadways such as I-35, I-10, US-90, US-281, and Loop 1604 should remain alert for rapidly changing weather conditions. Sudden downpours may reduce visibility, and strong wind gusts could create hazardous driving situations.
Heavy rainfall over short periods may also lead to localized ponding on roadways. Drivers are encouraged to slow down during storms, maintain safe following distances, and avoid driving through flooded areas.
What Residents Should Know
Although the overall severe threat remains limited, even marginal risk events can produce isolated strong storms. These storms may form quickly and strengthen with little warning.
Residents planning outdoor activities Friday night or Saturday are advised to monitor updated forecasts and stay weather aware. Having multiple ways to receive alerts—such as weather apps, mobile notifications, or local emergency warning systems—can help ensure timely action if severe weather develops.
Securing loose outdoor items ahead of approaching storms is also a good precaution, especially with the possibility of gusty winds.
Outlook Into Saturday Night
Storm activity is expected to taper off late Saturday night as the system weakens. However, brief strong storms cannot be ruled out before conditions fully settle.
While widespread severe weather is not expected at this time, isolated thunderstorms could still pack a punch. Staying informed and prepared will be key as South Central Texas heads into an active stretch of weather heading into the weekend.
