Enter any address in Lewis County, Washington to see its FEMA flood zone
River overflow and atmospheric river events are the primary flood drivers in Lewis County. Recent events include significant rainfall from atmospheric rivers in January 2021 and November 2021, which caused widespread flooding. Coastal flooding, driven by King Tides and strong winds, also occurred in December 2022.
National Flood Insurance Program data shows a substantial number of claims in Zone A, indicating areas with higher flood risk. However, claims are also present in other zones, including Zone X_UNSHADED and Zone X_SHADED, with significant average payouts and water depths recorded in some of these areas. Homeowners in coastal areas, those located near rivers, and properties in zones with higher flood risk should pay particular attention to flood preparedness.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
9 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Lewis County, Washington has recorded 9 flood-related events since 1996 according to NOAA's Storm Events Database. The county has received 36 federal disaster declarations, 19 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1964–2025)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms, Straight-line Winds, Flooding, Landslides, And Mudslides | Flood | Dec 9, 2025 |
| Severe Winter Storms, Straight-line Winds, Flooding, Landslides, And Mudslides | Severe Storm | Jan 5, 2024 |
| Severe Winter Storm, Straight-line Winds, Flooding, Landslides, And Mudslides | Severe Storm | Nov 3, 2022 |
| Severe Winter Storms, Snowstorms, Straight-line Winds, Floodin | Flood | Dec 26, 2021 |
| Severe Storms, Straight-line Winds, Flooding, Landslides, And Mudslides | Flood | Nov 5, 2021 |
| Severe Winter Storm, Straight-line Winds, Flooding, Landslides, And Mudslides | Severe Storm | Dec 29, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Flooding, Landslides, And Mudslides | Flood | Jan 20, 2020 |
| Severe Winter Storms, Flooding, Landslides, Mudslides | Flood | Jan 30, 2017 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Coastal Flood | Dec 27, 2022 | — |
| Flood | Jan 13, 2021 | 1.45M |
| Flood | Nov 12, 2021 | 526.00K |
| Flood | Jan 3, 2021 | 1.45M |
| Flood | Nov 18, 2015 | 200.00K |
| Flood | Dec 8, 2015 | 100.00K |
| Flood | Jan 7, 2009 | 8.40M |
| Flood | Dec 2, 2007 | 50.00M (1 deaths) |
| Flood | Nov 4, 2006 | 8.80M (2 deaths) |
Coastal Flood — Dec 27, 2022
Coastal flooding between 8 AM - 11 AM high tide cycle on 12/27. The event was a result of King Tides, coinciding with significantly strong low pressure in the area and strong winds. Wind gusts of up to 64 MPH occurred in the event as well as observed tidal conditions 1-2 feet above the HAT.
Flood — Jan 13, 2021
The period from January 10 to 16 continued a pattern of a strong and persistent Aleutian Low pressure system in the eastern Pacific that began December 29, 2020 and which directed the jet stream and primary storm track at Washington State. This resulted in a series of atmospheric rivers and wind storms that battered Washington State. Water vapor transport into Washington State averaged 160-200...
Flood — Nov 12, 2021
An upper level trough Gulf Low continued off the west coast that brought a series of atmospheric rivers resulting in flooding across parts of western Washington. This second atmospheric river episode of the month was a set of three atmospheric rivers back-to-back-to-back. Water vapor transport into Western Washington averaged 160 - 200% of normal during the period of 11 November - 16 November. ...
Flood — Jan 3, 2021
From December 29 - January 16, a strong and persistent Aleutian Low pressure system developed in the eastern Pacific which directed the jet stream and primary storm track at Washington State that resulted in a rapid series of atmospheric rivers and wind storms that battered Washington State. Water vapor transport into Washington State averaged 160-200% of normal during the period from December ...
Flood — Nov 18, 2015
The Elwha River flexed its new muscles during the most recent round of storms and severely damaged Olympic Hot Springs Road and effectively buried a campground in silt.|The river rose to 23.19 feet, major flood, on Nov. 17 during a heavy rainstorm that produced 5.6 inches of rain on that date in the Elwha watershed.|When the water receded, Olympic National Park officials discovered the water ha...
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 Lewis County, Washington:
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 Lewis County, Washington 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.