Enter any address in Teton County, Montana to see its FEMA flood zone
3 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Teton County, Montana has recorded 9 flood-related events since 1996 according to NOAA's Storm Events Database, including 3 flash floods and 6 river or area floods. The county has received 11 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 (1975–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm And Flooding | Severe Storm | May 6, 2024 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Strawberry Fire | Fire | Sep 11, 2017 |
| Severe Winter Storm And Straight-line Winds | Severe Storm | Apr 15, 2016 |
| Severe Storms And Flooding | Severe Storm | Apr 4, 2011 |
| Hurricane Katrina Evacuation | Hurricane | Aug 29, 2005 |
| Wildfires | Fire | Jul 13, 2000 |
| Heavy Rains, Landslides & Flooding | Flood | Feb 24, 1986 |
| Drought | Drought | Aug 22, 1977 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jul 20, 2021 | 0.00K |
| Flood | Jan 15, 2020 | 250.00K |
| Flood | May 26, 2019 | 0.00K |
| Flood | Mar 28, 2018 | 0.00K |
| Flood | Mar 10, 2011 | 0.00K |
| Flood | Jun 7, 2011 | 0.00K |
| Flash Flood | Aug 11, 2010 | 0.00K |
| Flood | May 25, 2008 | 0.00K |
| Flash Flood | Jun 10, 2002 | — |
Flash Flood — Jul 20, 2021
An unstable southwesterly flow developed ahead of an approaching Pacific trough and brought strong to severe thunderstorms over a three day period. Surface based CAPE routinely exceeded 1000 j/kg as steep mid-level lapse rates above 8C/km were common. Dry sub-cloud layers helped produce strong thunderstorm wind gusts and effective shear well above 30 kts was enough for quarter size hail and la...
Flood — Jan 15, 2020
A prolonged period of single digit and sub-zero temperatures caused large areas of anchor ice developed on the Spring Creek in the northeastern section of Choteau, which caused up to a couple of feet flood water to enter parts of a nearby residential area and a section of railroad. The impacts from the overland flooding were mostly confined to vacant lots. However, there were reports of basemen...
Flood — May 26, 2019
A slow-moving low pressure system was accompanied by unusually-high amounts of moisture, periods of steady of heavy rain, and some thunderstorms over north-central Montana during May 25th through the early morning of the 28th. In addition, relatively-high snow levels allowed rain to fall on lingering snowpack along the Rocky Mountain Front, where easterly upslope flow enhanced rainfall totals. ...
Flood — Mar 28, 2018
An ice jam along Clear Creek in Blaine County caused flooding during the evening of March 27th into the early morning of the 28th. In addition, snowmelt flooding led to several road closures in Pondera and Teton Counties.
Flood — Mar 10, 2011
Flooding due to snowmelt occurred over portions of Pondera and Teton counties.
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 Teton County, Montana:
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 Teton County, Montana 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.