Flash Flood Watch Issued for Austin Area

THE LATEST FROM THE NATIONAL WEATHER SERVICE:

....Flash Flood Watch in Effect through Midnight for Portions of the Hill Country and Austin Metro....

...Slight Risk for Severe Storms Today through Tonight...

....Locally Heavy Rainfall Possible Today through this Evening...

Timing and Area of Concern:

Rio Grande: Morning through Afternoon

Hill Country: Morning through Afternoon

I-35 Corridor: Afternoon through Evening

Coastal Prairies: Evening through Overnight

Threats & Impacts:

Rainfall:

  • 1 to 3 inches, with isolated pockets up to 5 inches, across the Flash Flood Watch area (Gillespie, Llano, Burnet, Blanco, Hays, Travis, and Williamson counties)
  • Generally 1/2 to 2 inches elsewhere

Winds: Slight risk some storms could produce wind gusts up to 60 mph

Hail: Slight risk some storms could produce hail up to golf ball sized

Tornadoes:  Isolated tornadoes possible

Overview:

Widespread showers and isolated thunderstorms were occurring early this morning across the northern Hill Country along a cold front slowly moving into the area. Scattered showers were developing early this morning elsewhere across the region.

As the cold front continues slowly south through the morning and early afternoon it will interact with increasing gulf moisture and a potent upper level disturbance. Showers and storms are then expected to increase further in coverage across portions of the Rio Grande and the remainder of the Hill Country and Central Texas through morning and into the early afternoon. The storms may form into a broken line that moves through the I-35 corridor this afternoon into the early evening, then into the Coastal Prairies during the evening and overnight hours.

There is a slight risk isolated to scattered storms could become severe, with hail and damaging straight-line wind gusts the primary threats. Isolated tornadoes are also possible. In addition, locally heavy rainfall, potentially leading to flash flooding is possible, especially across the Flash Flood Watch area.

Confidence:

Showers and Storms: Very High

Severe Storms: Medium

Rainfall Amounts: Medium

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