Kitsap County, Washington

What hazards hit Kitsap County most?

The most frequent records are high wind and dust records: 74 since 1996. The rank column places the county among Washington's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.

How many tornadoes has Kitsap County had?

NOAA records 2 tornadoes in Kitsap County from 1991 to 2018, the strongest rated EF2, with 0 deaths and 0 injuries recorded in the county. That is 5th of 39 Washington counties by days with tornadoes per 1,000 square miles since 1950. A tornado that crossed a county line is counted in each county it touched, with the length of its path inside the county.

Counted as whole tornadoes rather than county records, the Storm Prediction Center's database holds 2 tornadoes whose track touched Kitsap County since 1950 (NOAA's county records number 2, the same count); along their whole tracks they killed 0 people.

Map of the strongest tornado tracks in Washington.

Source: NOAA NCEI Storm Events Database, tornado records by county (path length in the county, maximum width); ratings as published: F scale before February 1, 2007, EF scale after. Whole-track figures: NOAA Storm Prediction Center tornado database (1950-2025). SPC severe weather database.

When was the last damaging storm in Kitsap County?

The most recent record with damage, injuries or deaths is the January 31, 2022 winter weather (1 death).

A man was killed in a single car crash around 7:17 am PST Monday, 1/31/2022. According to Washington State Patrol, speed and ice were factors in the collision which resulted when a man in a truck attempted to speed past another vehicle, then lost control after hitting a patch of ice while on an overpass on Highway 303. The truck struck and rolled over a Jersey barrier, falling onto the road below. The driver died in the crash, while a passenger sustained only minor injuries. Temperatures around the area were generally in the 30 to 33 degree range at the time of the incident and according to a media report icy roads ...were reported around the region with similar reports from Central Kitsap Fire and Rescue.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 1005005)

Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.

The deadliest and costliest records

Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.

Is it getting more frequent?

Records per decade for Kitsap County's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).

Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).

What time of year?

Records by month in Kitsap County. The two busiest months are in violet.

Source: NOAA NCEI Storm Events Database, records by the month they began.

Federal disaster declarations for Kitsap County

FEMA's register lists 16 declarations that include Kitsap County: 14 major disasters, 2 emergencies and 0 fire management assistance declarations. Most were for flood (6) and severe storm (4).

Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.

How many floods has Kitsap County had?

NOAA's Storm Events Database holds 17 flood or flash flood records for Kitsap County from 1997 to 2022, on 16 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Kitsap County ranks 877th of 2,942 U.S. counties.

The National Flood Insurance Program has paid $4.2 million on 229 claims filed in Kitsap County; the most in one year was 74 in 2022. Claims count insured losses only: uninsured flood damage is not in this file.

Source: FEMA OpenFEMA NFIP Redacted Claims, as of September 8, 2026; claims by year of loss, payments in the dollars of the year paid. OpenFEMA dataset page.

FEMA's modeled risk for Kitsap County

FEMA's National Risk Index rates Kitsap County Relatively Moderate overall, with an expected annual loss of $158 million. These are FEMA's model estimates of future loss from 18 hazards, not a count of what happened; they can differ from the record above.

Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.

Counties that share a border with Kitsap County

1. King County 574
2. Snohomish County 542
3. Jefferson County 487
4. Pierce County 436
5. Mason County 265
6. Kitsap County 198
7. Island County 171

Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.

Next

• Tornadoes in WashingtonEvery Washington tornado since 1950 and the counties with the most per square mile
• High wind and dust storms in WashingtonThe state's high wind and dust records, by county, year and month
• The Washington recordEvery hazard in the state, its deadliest events and its federal declarations
• FEMA's risk rating for each hazard in Kitsap CountyThe hazard risk calculator: 18 hazards beside the county's record
• Download Kitsap County's FEMA declarations (CSV)16 rows: every declaration that named the county, for your own analysis