Atlas 15 - HoustonNewMedia.org

How Bad Was That Storm?

Reduce Flooding — Sat, 27 Jan 2024 16:34:10 +0000

A week of rain has ended. Flood crests are passing. And many are asking, “How bad was that storm?” The short answer to the question: depending on where you live in the region, you got a 1- to 5-year rainfall. Why is that? And how do you determine it? It’s simple. Let’s start with the […]

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Here Come New Precipitation-Frequency Estimates…Again

Reduce Flooding — Tue, 05 Sep 2023 21:12:16 +0000

NOAA’s new Atlas 15 precipitation-frequency estimates will soon replace recently introduced Atlas 14 estimates – even before the Atlas 14 estimates have been fully adopted and integrated into local regulations. About Precipitation-Frequency Estimates Engineers use precipitation-frequency estimates to design, plan and manage infrastructure under Federal, State and local regulations. For instance, to ensure homes are […]

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New Data Suggests Houston’s Expected 100-Year Flood Is More Likely to Happen Every 8 to 23 Years

Reduce Flooding — Tue, 27 Jun 2023 00:14:10 +0000

First Street Foundation, a non-profit risk-research group, estimates (based on what it says are “well known” Atlas-14 flaws) that a so-called 100-year flood event in Houston could likely happen every 8 to 23 years. NOAA’s Atlas 14, a massive, years-long effort, which hasn’t even been fully implemented yet, may already be seriously out of date […]

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