Enter any address in Laramie County, Wyoming to see its FEMA flood zone
Flash flooding from summer thunderstorms dominates Laramie County's flood events. Between 1993 and 2023, the NOAA Storm Events Database recorded 86 flash flood events compared to 6 general flood events. For example, intense rainfall associated with monsoon moisture led to urban flooding in Cheyenne in July 2025.
National Flood Insurance Program (NFIP) claims data shows that properties in Zone X_UNSHADED have experienced the most claims, with an average payout of $6,345 for 0.6 feet of water depth. Properties in Zone A have also seen significant claims, averaging $5,158 with 1.3 feet of water depth. Homeowners in areas designated as Zone A or Zone X_UNSHADED should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
5 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Laramie County, Wyoming has recorded 92 flood-related events since 1996 according to NOAA's Storm Events Database, including 86 flash floods and 6 river or area floods. The county has received 5 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 (1979–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Happy Jack Fire | Fire | Mar 1, 2024 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Hail & Flooding | Flood | Aug 7, 1985 |
| Severe Storms & Tornadoes | Tornado | Jul 19, 1979 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jul 24, 2025 | 0.00K |
| Flash Flood | Jul 23, 2025 | 0.00K |
| Flash Flood | Jun 20, 2024 | 0.00K |
| Flash Flood | Jun 21, 2023 | 0.00K |
| Flash Flood | Jul 20, 2023 | 0.00K |
| Flash Flood | Jul 20, 2023 | 60.00K |
| Flash Flood | Jun 11, 2023 | 0.00K |
| Flash Flood | Jun 6, 2023 | 0.00K |
| Flash Flood | Aug 3, 2023 | 0.00K |
| Flash Flood | Aug 1, 2023 | 0.00K |
Flash Flood — Jul 24, 2025
A surge of monsoon moisture brought strong thunderstorms to southeast Wyoming and western Nebraska the afternoon and evening of July 24th. Strong winds, hail, and flash flooding were reported with storms.
Flash Flood — Jul 23, 2025
A push of monsoon moisture into southeast Wyoming lead to the development of widespread showers and storms that eventually converged over the city of Cheyenne. Intense rainfall lead to impressive rainfall rates, resulting in urban flooding across the city.
Flash Flood — Jun 20, 2024
An intense supercell thunderstorm originated near Chugwater, Wyoming, during the early to mid afternoon hours on 6/20, tracking across southern Platte and Goshen counties through approximately 3:00 PM MDT before moving into the western Nebraska Panhandle. Storm chasers reported extremely large and destructive hail up to 4.5 inches in diameter along with wind gusts in excess of 70 MPH, noting th...
Flash Flood — Jun 21, 2023
Showers and thunderstorms initially developed over the higher terrain of the Laramie Range late in the afternoon on 6/21, rapidly increasing in both coverage and intensity as they tracked slowly eastward through the evening. This activity evolved into a large, slow moving cluster of moderate to heavy rain and embedded thunderstorms, with pockets of small to marginally severe (quarter to half do...
Flash Flood — Jul 20, 2023
A strong monsoonal moisture push led to afternoon thunderstorms with heavy rainfall leading to flash flooding in Cheyenne and Laramie and areas in-between.
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 Laramie County, Wyoming:
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 Laramie County, Wyoming 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.