Update on Thunderstorm Activity for Late Tonight/Early Monday...

A cold front will combine with several upper-level weather disturbances to produce periods of scattered to numerous showers and scattered thunderstorms across the local area especially from this afternoon through midday on Monday.

A scattered shower or an isolated thunderstorm is possible anytime from now through Monday.  At this time, we expect an uptick in scattered showers, and possibly an isolated thunderstorm or two, across the local area starting this afternoon. Most of the activity this afternoon across the local area will be in the form of light to moderate showers, with any thunderstorms likely to be rather small in size and relatively isolated in coverage.

Further to the West of the local area, scattered to numerous thunderstorms will develop in west-central and southwest Texas later this afternoon into this evening. This activity will attempt to move Eastward into the local region during the pre-dawn hours on Monday (generally between 1-2 a.m. and 5-6 a.m.) but at this time there is considerable uncertainty as to whether the activity will continue to hold together as it moves further East across the Hill Country and toward the local area. Present indications suggest the activity will weak considerably and possibly even start to break up (decrease in coverage) as it approaches the area late tonight/early Monday morning. With this in mind, at this time it appears that at least an uptick in showers can be expected again locally during the pre-dawn and into the mid-morning hours on Monday, with a few scattered thunderstorms also possible during that time. The chance for thunderstorm activity will increase as you move into Western parts of the local area (to the West of I-35).

Although thunderstorm activity does not currently look to be widespread for the local area, locally heavy downpours of rain will be possible with any scattered thunderstorm activity across the local area. Rainfall of around 1 inch to possibly as much as 2 inches is possible in association with any scattered thunderstorm activity, but again, for the local area this currently appears to be a scattered type proposition rather than a widespread one. Elsewhere, in association with showers, rainfall amounts of around 0.5 inch or so would be more common across most of the area.