A severe thunderstorm watch is now in effect for portions of the Edwards Plateau, Hill Country, and South-Central Texas until 7 PM this evening. This watch includes Eagle Pass, Uvalde, Pleasanton, San Antonio, Boerne, Kerrville, Kingsland, Austin, San Marcos, and Cuero. The strongest storms this afternoon may be capable of producing quarter to ping-pong ball size hail and localized wind gusts of 60 to 70 MPH. An isolated tornado is not out of the question.

Most storms in this area will be north of an outflow boundary, thus keeping the tornado threat quite low. However, the strongest storms will be capable of producing hail and localized gusty winds, in addition to heavy rainfall. Movement of the storms will be off to the northeast. We may see a cluster or line of storms begin to organize later this afternoon. Those storms would then begin moving more east/northeast.

Here is the full watch text from the Storm Prediction Center.
Severe Thunderstorm Watch Number 98
NWS Storm Prediction Center Norman OK
1150 AM CDT Wed Apr 24 2019

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Parts of south central Texas and the Hill Country

* Effective this Wednesday morning and evening from 1150 AM until
700 PM CDT.

* Primary threats include…
Scattered large hail events to 1.5 inches in diameter likely
Isolated damaging wind gusts to 70 mph possible
A tornado or two possible

SUMMARY…Mainly elevated thunderstorms are expected to continue
developing through the afternoon, with large hail the main threat.
Isolated damaging gusts, and perhaps a tornado, will be possible
with storms closer to the outflow boundary that will sag southward
near the southern edge of the watch area.