Enter any address in Union County, Oregon 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.
Union County, Oregon has recorded 12 flood-related events since 1996 according to NOAA's Storm Events Database, including 3 flash floods and 9 river or area floods. The county has received 8 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 (1964–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms, Flooding, Landslides, And Mudslides | Flood | Feb 5, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Hurricane Katrina Evacuation | Coastal Storm | Aug 29, 2005 |
| Severe Winter Storms | Severe Storm | Dec 26, 2003 |
| High Winds, Severe Storms And Flooding | Flood | Feb 4, 1996 |
| Drought | Drought | Apr 29, 1977 |
| Heavy Rains & Flooding | Flood | Dec 24, 1964 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | May 20, 2020 | 0.00K |
| Flood | Feb 6, 2020 | 750.00K |
| Flood | Apr 8, 2019 | 250.00K |
| Flood | Mar 9, 2014 | 0.00K |
| Flood | May 15, 2011 | 2.00M |
| Flood | Jun 2, 2010 | 0.00K |
| Flood | May 18, 2008 | 30.00K |
| Flood | May 6, 2005 | — |
| Flash Flood | Jul 19, 2004 | 5K |
| Flash Flood | Sep 8, 1998 | — |
Flood — May 20, 2020
Heavy rain with QPF amounts of 2-4 inches across the Blue Mountains, Blue Mountain Foothills, and John Day Highlands produced areal and river flooding on May 20th and ending on May 21st. Most of the flooding was minor.
Flood — Feb 6, 2020
Summary : Heavy snow on February 4-5, 2020 was followed by a period of heavy rain, February 5-7. Snow levels rose to near 5000 feet. The heavy rain and snow melt lead to moderate flooding and several landslides along the East Slopes of the Washington Cascades. There was record flooding on several rivers, including the Umatilla, Walla Walla and Touchet rivers with widespread flooding of numer...
Flood — Apr 8, 2019
Snow water equivalents near 200% of normal in the Blue Mountains coupled with warm temperatures and near record rainfall totals for April produced significant river flooding across eastern Oregon.
Flood — Mar 9, 2014
Heavy rain fell across much of the northern Blue Mountains and Wallowa County throughout the first week of March. March 9th received very heavy rain with snow levels around 6000ft. This allowed for a significant increase in runoff, which lead to a quick rise in rivers for the period. Flooding was reported at the confluence of Five Points Creek and the Grande Ronde River near Hilgard. Field f...
Flood — May 15, 2011
An upper level low pressure system moved over the Pacific Northwest. Moist and unstable conditions ahead of the low triggered widespread thunderstorms with heavy rainfall and isolated large hail. This combined with the abundant spring snow-pack and wet ground to cause flooding and flash flooding. As the upper low brought colder air. late season heavy snow ended the episode in the Blue Mountain...
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 Union County, Oregon:
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 Union County, Oregon 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.