Here's a quick look at the Uvalde Temp and Dew Point sounding from the radiometer this morning at 932am CDT Wed comparing the last 24 hours. Notice the cooling of 1.5 DegC below 4000msl and warming aloft from 5000 to 9000msl. What this means is that there will be a later trigger time. Thermals heights and strengths will be lower due to the slight stabilizing influence.
Walt Rogers - WGC Met Ops