The KSAT Weather Authority app's radar includes a 24-hour futurecast view to track expected storms in the coming day. You can access this feature through the radar menu under the "gear" icon in the upper right corner. In the menu, select: Forecast Radar (24hr). 

Selecting this data layer creates a 24-hour look-ahead view of the radar. Make sure to return to "National Radar" for live weather conditions.