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IDG Contributor Network: Incident response lessons from the Texas flash flood

Discussion in 'CSO' started by RSS, Jun 30, 2015.

  1. RSS

    RSS New Member Member

    Flooding rains are not uncommon in Central Texas. The region has long been known as "Flash Flood Alley" due to its hilly terrain, shallow soils, and proximity to the moisture-laden Gulf of Mexico. When rain falls, it essentially has two options: soak into the soil, or flow downhill; the shallow and rocky soils of the Hill Country limit the former, so even a moderate rain causes runoff.

    The weekend of Memorial Day 2015, however, was something else entirely. Over a period of a few hours, between nine and 12.5 inches of rain fell over a wide range of the Hill Country - much of which fell within the watersheds of the Blanco and San Marcos rivers. A foot of rainfall - a third of a typical year's total - inundated the region in just a few hours, and had to go somewhere.

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