Enter any address in Hill 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.
Hill County, Montana has recorded 8 flood-related events since 1996 according to NOAA's Storm Events Database, including 2 flash floods and 6 river or area floods. The county has received 13 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 (1986–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm And Flooding | Severe Storm | May 6, 2024 |
| Flooding | Flood | Apr 10, 2023 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Flooding | Flood | Apr 12, 2018 |
| Flooding | Flood | May 19, 2013 |
| Severe Storms And Flooding | Severe Storm | Apr 4, 2011 |
| Severe Storms And Flooding | Severe Storm | Jun 15, 2010 |
| Hurricane Katrina Evacuation | Hurricane | Aug 29, 2005 |
| Severe Storms And Flooding | Severe Storm | Jun 8, 2002 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Jul 27, 2025 | 0.00K |
| Flood | May 7, 2024 | 1.21M |
| Flood | Apr 12, 2023 | 2.00M |
| Flood | Mar 12, 2014 | 0.00K |
| Flood | Mar 17, 2011 | 0.00K |
| Flash Flood | Jul 13, 2011 | 0.00K |
| Flood | Jun 3, 2011 | 0.00K |
| Flash Flood | Jun 27, 1998 | 233K |
Flood — Jul 27, 2025
A persistent troughing pattern brought in good instability and shear to produce severe thunderstorms across the region over the 3 day time frame with strong winds as the primary hazard. There was also isolated large hail. Anomalously high moisture content and slower moving storms brought localized flooding. A thunderstorm produced heavy rainfall and caused flooding in Havre and in Clear Creek o...
Flood — May 7, 2024
A closed upper level low lifted northeast across eastern Montana on May 6th through the 9th. This low merged with a shortwave streaming from the Pacific Northwest. This storm system brought strong winds across Central and North Central Montana with the highest wind gust measured near Whitlash where a mesonet station measured an 87 mph gust. Widespread wind gusts of 55 and 75 mph were measured. ...
Flood — Apr 12, 2023
Unseasonably warm temperatures occurred in the first two weeks of April, with highs near 80 degrees occurring at times. These warm temps, along with occasional rain, resulted in melting of a deep snowpack on top of frozen ground which led to significant runoff into area waterways. Moderate to major flooding occurred along portions of the Milk River and its tributaries. Impactful snowmelt floodi...
Flood — Mar 12, 2014
Southwest flow over the region brought strong west winds to the Rocky Mountains and portions of the adjacent plains. Widespread precipitation was seen over Central and Southwest Montana ahead of a low pressure sytem, associated with favorable dynamics and an upper level jet maximum.
Flood — Mar 17, 2011
Warm temperatures and snowmelt caused widespread flooding.
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 Hill 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 Hill 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.