Enter any address in Cass County, Missouri to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Cass County. Between 1993 and 2023, NOAA Storm Events data recorded 57 flash flood events and 15 general flood events. Recent examples include flash flooding on local roadways after heavy rain in April 2021, and minor flash flooding occurring alongside damaging winds in May 2021.
National Flood Insurance Program (NFIP) claims data shows a significant number of claims in Zone A, with an average payout of $14,808 for a water depth of 2.7 feet. Claims in Zone X, despite being a lower flood risk designation, show a higher average payout of $28,750 with an average water depth of 2.9 feet. Homeowners in Zone A, and those in Zone X who may experience deeper water, should pay close attention to flood risk.
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, Missouri has recorded 72 flood-related events since 1996 according to NOAA's Storm Events Database, including 57 flash floods and 15 river or area floods. The county has received 22 federal disaster declarations, 4 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1973–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Winter Storm | Severe Storm | Jan 31, 2011 |
| Severe Winter Storm And Snowstorm | Severe Storm | Jan 31, 2011 |
| Severe Storms, Flooding, And Tornadoes | Severe Storm | Jun 12, 2010 |
| Severe Winter Storm | Severe Ice Storm | Jan 26, 2009 |
| Severe Storms And Flooding | Severe Storm | Jun 1, 2008 |
| Severe Winter Storms | Severe Ice Storm | Dec 8, 2007 |
| Severe Storms And Flooding | Severe Storm | May 5, 2007 |
| Severe Storms, Tornadoes And Flooding | Severe Storm | Mar 8, 2006 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jun 28, 2021 | 0.00K |
| Flash Flood | Apr 28, 2021 | 0.00K |
| Flash Flood | May 27, 2021 | 0.00K |
| Flash Flood | Jun 25, 2021 | 0.00K |
| Flood | Jul 30, 2020 | 0.00K |
| Flood | Jul 29, 2020 | 0.00K |
| Flash Flood | May 28, 2020 | 0.00K |
| Flash Flood | Apr 30, 2019 | 0.00K |
| Flash Flood | Sep 28, 2019 | 0.00K |
| Flash Flood | May 24, 2019 | 0.00K |
Flash Flood — Jun 28, 2021
Heavy rain produced some marginal flash flooding in Miami County Kansas and nearby Bates County Missouri.
Flash Flood — Apr 28, 2021
After heavy rain moved through the Kansas City Metro several local roadways were inundated with running water.
Flash Flood — May 27, 2021
On the morning of May 27 a line of storms moved through northwest Missouri, producing some damaging winds, along with some minor flash flooding. In the afternoon the clouds cleared out, and a second round of severe thunderstorms formed, this time bringing some large hail, along with damaging winds.
Flash Flood — Jun 25, 2021
Late in the afternoon, and through the evening hours on June 24 a cluster of storms over southeast Nebraska congealed into a line of thunderstorms that focused across northern Missouri. Most notably within this line of storms was a cluster of QLCS tornadoes that formed in Grundy County. There may have been other tornadoes associated with circulations that were noted on radar, but emergency mana...
Flood — Jul 30, 2020
Throughout the final few days of the month a mid level trough dug into the central part of the CONUS, and produced several rounds of moderate to heavy rain. Several areas reported well over 6 inches of rain over the 2 day period, with the high values occurring in Johnson County Missouri where almost 10 inches of rain over the 36-48 period was reported. Most of the flooding was minor and little ...
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, Missouri:
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, Missouri 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.