FloodZoneMap.org

Flash Flood — Cass, TX

Mar 15, 2024

Strong and deep convection became widespread over the Ark-La-Tex and downstream portions of southern Arkansas on March 15th. This occurred along an outflow boundary on the southwestern flank of a decaying MCS, and a favorable environment encouraged increased training over several hours. The mesoscale environment was characterized by ML CAPE of 1000-2000 J/kg, PWATs of 1.5-1.8 inches, and deep layer shear of 30-50 knots. In addition, a highly favorable coupled overlap of 850 mb convergence and 25

Source: NOAA National Weather Service Storm Events Database (event 1171043). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Cass, TX

This event is one of many recorded floods in Cass County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Cass County flood data →

More Flood Stories

Flash Flood$500K damage

Cass, TX · Jul 28, 2009

A mesoscale convective complex formed across southeast Oklahoma, southwest Arkansas and northeast Texas during the predawn hours of July 28th and spread southeast towards the Interstate 20 corridor of northeast Texas into northwest Louisiana during the day.

Read the full account →
Flash Flood$250K damage

Cass, TX · Jul 28, 2009

A mesoscale convective complex formed across southeast Oklahoma, southwest Arkansas and northeast Texas during the predawn hours of July 28th and spread southeast towards the Interstate 20 corridor of northeast Texas into northwest Louisiana during the day.

Read the full account →
Tropical Storm$250K damage

Cass, TX · Sep 13, 2008

Hurricane Ike came onshore across extreme southeast Texas during the late night hours of September 12th and the pre-dawn hours of September 13th.

Read the full account →
Flash Flood

Cass, TX · Apr 4, 2025

A stationary front extended across portions of Northeast Texas and Southwest Arkansas during the early morning hours on April 4th, but lifted north into Southeast Oklahoma and Western Arkansas during the day.

Read the full account →