Enter any address in Grundy County, Missouri to see its FEMA flood zone
Flash flooding from severe thunderstorms is the dominant flood character in Grundy County. Over the past 30 years, NOAA Storm Events data shows 30 recorded flash flood events compared to 9 general flood events. Recent examples include flash flooding reported on May 28, 2019, due to widespread severe weather, and isolated flash flooding from heavy rain on June 5, 2019.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A have experienced an average payout of $27,411 with an average water depth of 1.5 feet. Claims in Zone X, which typically represents areas with lower flood risk, have shown a higher average payout of $51,366, though with a reported negative water depth, suggesting these claims may be for events outside of typical inundation or represent different types of flood-related damage. Homeowners in areas designated as Zone A, and those located near waterways, should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
4 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Grundy County, Missouri has recorded 39 flood-related events since 1996 according to NOAA's Storm Events Database, including 30 flash floods and 9 river or area floods. The county has received 21 federal disaster declarations, 1 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1976–2023)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Severe Storm | Jul 29, 2023 |
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Severe Storm | Jun 24, 2021 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Apr 29, 2019 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | Sep 9, 2014 |
| 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 Storms, Tornadoes, And Flooding | Severe Storm | May 8, 2009 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Aug 4, 2023 | 0.00K |
| Flash Flood | May 14, 2020 | 0.00K |
| Flash Flood | May 28, 2019 | 0.00K |
| Flash Flood | May 26, 2019 | 0.00K |
| Flash Flood | Jun 5, 2019 | 0.00K |
| Flood | Oct 8, 2018 | 0.00K |
| Flood | Jun 29, 2017 | 0.00K |
| Flood | Jul 13, 2017 | 0.00K |
| Flash Flood | Jul 13, 2017 | 0.00K |
| Flash Flood | Jul 12, 2017 | 0.00K |
Flash Flood — Aug 4, 2023
On the afternoon and evening of August 4th, severe storms developed over western Missouri and moved eastward into central Missouri. A supercell produced a 4.5 mile long EF0 tornado in rural Ray County near the community of Millville, with another supercell producing a 1.5 mile long EF0 near Malta Bend in Saline County. A few other wind damage and 60 mph wind gusts reports were received with the...
Flash Flood — May 14, 2020
Scattered thunderstorms formed across central Missouri, which produced hail between 1 and 2 inches and occasional gusty winds around 60 top 70 mph.
Flash Flood — May 28, 2019
Widespread severe weather moved through the region on May 28. One supercell produced several tornadoes, including the Lawrence to Linwood, Kansas tornado. This storm then went on to produce an EF-2 tornado in northeastern Clay County and did damage to portions of Kearney, Missouri. Earlier in the day, through the morning and early afternoon hours several storms moved through northern Missouri c...
Flash Flood — May 26, 2019
A couple rounds of strong to severe storms moved through the region, with some minor flash flooding and marginal severe weather.
Flash Flood — Jun 5, 2019
A few storms produced sub-severe hail, along with isolated hail up to golf ball sized. Isolated flash flooding also occurred due to heavy rain.
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 Grundy 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 Grundy 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.