Enter any address in Cheyenne County, Colorado to see its FEMA flood zone
Flash flooding from intense thunderstorms is the primary flood hazard in Cheyenne County. Between 1993 and 2023, NOAA Storm Events data recorded 27 flash flood events compared to 4 general flood events. Recent occurrences include flash flooding on July 12, 2020, which made a portion of Highway 385 impassable, and another event on June 16, 2023, that saw multiple reports of over two inches of rain, worsening existing flooding.
These events are often characterized by rapid, heavy rainfall, sometimes exceeding 3.5 inches in under 30 minutes, leading to basement flooding and damage to structures. Residents in areas prone to rapid runoff, particularly those in low-lying areas or without a designated Base Flood Elevation, should pay close attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
8 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Cheyenne County, Colorado has recorded 31 flood-related events since 1996 according to NOAA's Storm Events Database, including 27 flash floods and 4 river or area floods. The county has received 9 federal disaster declarations, 2 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1965–2023)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms, Flooding, And Tornadoes | Flood | Jun 8, 2023 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Snow | Snowstorm | Dec 28, 2006 |
| Hurricane Katrina Evacuation | Coastal Storm | Aug 29, 2005 |
| Wildfires | Fire | Apr 23, 2002 |
| Severe Winter Storms | Severe Storm | Apr 11, 2001 |
| Drought | Drought | Jan 29, 1977 |
| Tornadoes, Severe Storms & Flooding | Tornado | Jun 19, 1965 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Aug 28, 2025 | 1.00K |
| Flash Flood | Jun 16, 2023 | 0.00K |
| Flood | Jul 6, 2022 | 0.01K |
| Flash Flood | Jul 12, 2020 | 2.50K |
| Flash Flood | Jul 29, 2019 | 0.00K |
| Flash Flood | Jul 8, 2019 | 0.00K |
| Flash Flood | Aug 2, 2017 | 150.00K |
| Flash Flood | Aug 2, 2017 | 75.00K |
| Flash Flood | Apr 15, 2016 | 0.00K |
| Flash Flood | Sep 2, 2016 | 0.00K |
Flash Flood — Aug 28, 2025
During the night a high precipitation storm moved over eastern Colorado, producing rainfall estimates of 3.5 inches, the most of which fell in less than 30 minutes. This caused some basement flash flooding. There was also a report of farm stead having moderate damage from the thunderstorm winds.
Flash Flood — Jun 16, 2023
In the early afternoon of the 16th, a system of thunderstorms formed in east central Colorado and progressed eastward. The strongest cells of this system remained south of I-70 through Colorado. Up to 1.75 inch diameter hail was reported from this system. Multiple reports of greater than 2 inches of rain were also reported with this system which caused flash flooding to occur in Cheyenne county...
Flood — Jul 6, 2022
During the afternoon hours on the 6th, isolated storms developed over Eastern Colorado and evolved into a line of storms that moved east into Northwest Kansas through the night. These storms produced wind gusts estimated up to 60 mph across Cheyenne County, Colorado along with up to penny sized hail and heavy rain up to 4.5 inches. The heaviest rainfall amounts were reported in the eastern half...
Flash Flood — Jul 12, 2020
Thunderstorms initiated along a dry line in central Colorado moving east and forming a cluster of supercells that produced up to 70 mph wind gusts and large hail up to tennis ball in size across Yuma County. Supercells developed over Cheyenne County as the northern cluster crossed into Kansas and Nebraska. The southern cells eventually formed a cluster that was able to produce up to half dollar...
Flash Flood — Jul 29, 2019
Severe thunderstorms produced hail to one inch in diameter. The hail destroyed approximately 500 acres of corn.
Source: NOAA National Weather Service Storm Events Database.
FEMA assigns flood zone designations to areas in Cheyenne County, Colorado:
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 Cheyenne County, Colorado 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.