Tuesday, November 15, 2011

Thunderstorm Complex Moving Toward the I-35 Corridor in Texas...

A complex of showers and heavy thunderstorms continues to advance Eastward this morning, and is currently approaching the I-35 corridor. The activity, as shown on the latest radar image above, is moving East/Northeast at about 25 mph.  Some of the individual storms within the area are moving at about 30 mph.

San Antonio will see showers and thunderstorms overspread the city from now through 8am CST.  Locally heavy downpours, gusty winds and small hail are possible, along with dangerous lightning.

Showers and thunderstorms will reach Austin by 8am CST, overspreading the region from West to East.  At this time, the activity up Austin's way is not as strong, however locally heavy downpours, gusty winds and frequent lightning are all likely.  A couple of the embedded storms could intensify prior to arrival and produce a small hail threat as well.

A Severe Thunderstorm Watch is in effect for the Austin/San Antonio area until 11am CST:

Rainfall will average one half to one inch, with localized amounts near 2 inches possible in heavier thunderstorms.  Here is how the rainfall potential looks for the period 6am to 12 Noon CST:

...and from 12 Noon to 6pm CST:

Based on its present speed of travel, the complex is likely to reach the Houston area around midday.  The latest NAM computer model radar forecast valid 1pm CST is shown below:

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