Enter any address in Glacier County, Montana to see its FEMA flood zone
1 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Glacier 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 11 federal disaster declarations, 3 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1974–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| 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 |
| Severe Storms And Flooding | Severe Storm | Jun 8, 2002 |
| Wildfires | Fire | Jul 13, 2000 |
| Heavy Rains, Landslides & Flooding | Flood | Feb 24, 1986 |
| Drought | Drought | Aug 22, 1977 |
| Rains, Showmelt, Storms & Flooding | Flood | Jun 28, 1975 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | May 26, 2019 | 0.00K |
| Flood | Jun 18, 2014 | 0.00K |
| Flood | May 24, 2011 | 0.00K |
| Flood | Jun 7, 2011 | 0.00K |
| Flood | May 23, 2008 | 0.00K |
| Flash Flood | Jun 10, 2002 | — |
| Flash Flood | Jun 6, 2002 | — |
| Flood | Mar 20, 1997 | — |
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 — Jun 18, 2014
A potent low pressure system moved across the Pacific Northwest bringing a period of widespread precipitation and below average temperatures. Rain was seen over the lower elevations with snow in some of the higher terrain. The heaviest precipitation was seen along eastern slopes of the Continental Divide.
Flood — May 24, 2011
Rising rivers, rapid snowmelt and continuous rain prompted the declaration on 5/24/11.
Flood — Jun 7, 2011
Rain and snowmelt. Presidential Disaster Declaration for Montana made on 6/17/11.
Flood — May 23, 2008
A persistent closed low pressure system brought heavy rain to much of North Central Montana. Rainfall of 2 to 5 inches was common over the plains and valleys while rain amounts over 10 inches were reported in the mountains. The heavy rains caused many rivers and streams to overflow their banks for several days.
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 Glacier 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 Glacier 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.