Enter any address in Cass County, Texas to see its FEMA flood zone
Flash flooding from thunderstorms is the most frequent flood event in Cass County, TX, with 32 occurrences recorded in the NOAA Storm Events Database over the last 30 years. Other flood types, including general floods and tropical storms, have occurred less frequently. Recent flash flood events include those on April 4th, 2025, and March 15th, 2024, which were associated with stationary fronts, developing low-level jets, and strong convection.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A and Zone X_SHADED have experienced the most claims. Zone X_SHADED claims, in particular, show a higher average payout and water depth compared to other zones. Homeowners in Zone A and Zone X_SHADED, as well as those in Zone X_UNSHADED and Zone X, should pay close attention to flood risk information.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
18 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Cass County, Texas has recorded 36 flood-related events since 1996 according to NOAA's Storm Events Database, including 32 flash floods and 3 river or area floods. The county has received 28 federal disaster declarations, 5 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1966–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Hurricane Beryl | Hurricane | Jul 5, 2024 |
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Flood | Apr 26, 2024 |
| Severe Winter Storm | Severe Ice Storm | Feb 11, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 11, 2021 |
| Tropical Storms Marco And Laura | Hurricane | Aug 23, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms And Flooding | Flood | Apr 17, 2016 |
| Severe Storms, Tornadoes, And Flooding | Flood | Mar 7, 2016 |
| Severe Winter Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | Dec 26, 2015 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Apr 4, 2025 | 0.00K |
| Flash Flood | Mar 15, 2024 | 0.00K |
| Flash Flood | Jun 3, 2024 | 0.00K |
| Flash Flood | Feb 12, 2020 | 0.00K |
| Flash Flood | May 8, 2019 | 0.00K |
| Flood | Dec 8, 2018 | 0.00K |
| Flash Flood | Apr 10, 2017 | 0.00K |
| Flash Flood | Apr 30, 2016 | 0.00K |
| Flash Flood | Mar 9, 2016 | 0.00K |
| Flash Flood | Jul 28, 2009 | 250.00K |
Flash Flood — 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. This was in response to an intensifying low level jet that developed ahead of a large upper trough that extended from the Intermountain West into the Plains, which provided the necessary l...
Flash Flood — 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 l...
Flash Flood — Jun 3, 2024
A linear mesoscale convective system (MCS) advanced southeast into the Ark-La-Tex from Oklahoma during the afternoon and evening hours on June 3rd. A pocket of strong instability was present ahead of the line, where MLCAPE values ranged from around 2500 to 3500 J/kg range and surface dew points were in the 70s. Instability along with strong large-scale ascent associated with a vorticity maxima ...
Flash Flood — Feb 12, 2020
Areas of showers remained persistent across much of the Ark-La-Tex through much of the day on February 11th, along the subtropical jet stream that extended over much of Texas and the Lower Mississippi Valley ahead of a strong upper level low pressure system just off the Northwest Baja California coast. These rains primed the already wet soils on the 11th, before the low pressure system began to...
Flash Flood — May 8, 2019
A strong upper level trough of low pressure extending from the Intermountain West into the Four Corners Region energized the southwest flow aloft across the Southern Plains during much of the day on May 8th, with a strong low level jet sustaining a mesoscale convective complex (MCS) across much of Oklahoma into Northcentral Texas south into the Texas Hill Country. While these storms gradually w...
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Cass County, Texas:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Cass County, Texas that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.