Twelve documented floods in ten years near Bellingham — all in the four winter months
Asked:“list of flood events by month last 10 years near belllingham wa mud bay”
Documented flood episodes near Bellingham, Washington — Bellingham Bay, nearby Whatcom County shorelines and the Nooksack River lowlands — from September 1, 2016 through September 1, 2026. Twelve episodes were found, spanning river, coastal/king-tide, stormwater and atmospheric-river flooding; every one fell in November–February.
Every documented flood, 2017–2025
Each circle is one flood episode; size shows how many sources corroborate it. Colour is flood type:river / atmospheric-rivercoastal / king tide
Which months flood
Documented episodes by calendar month across the whole window, stacked by type. Months not shown had no qualifying episode located in the scanned sources.
- The November 13–15, 2021 atmospheric-river flood was a presidential major disaster: about $150 million in countywide damage, thousands displaced and one reported death — the largest episode in the window. cascadiadaily.com
- December 10–12, 2025 brought a second major atmospheric-river flood, reaching Bellingham, Ferndale, Everson, Nooksack, Sumas, Acme and Marietta. bellinghamherald.com
- Coastal king tides repeatedly hit Birch Bay and Sandy Point — December 2018 (~$3 million, Birch Bay Drive one-way for nearly a year), January 2022, December 2022, January 2023 (over $1 million at the Sandy Point fire station) and December 2023. whatcomcounty.us
- By month of year the twelve episodes split January 3, February 1, November 4, December 4 — none in March through October. weatherforyou.com
The full event list
| Dates | Area | Flood type | Impact | Sources |
|---|
Geography and completeness
No scanned source explicitly named Mud Bay as an affected site, so this list covers the surrounding Bellingham/Whatcom region and should not be read as a parcel-level Mud Bay flood log. A documented-events list is also not necessarily exhaustive: missing years and months mean no qualifying episode was located in the scanned sources, not proof that no nuisance flooding occurred.
Documented flood episodes near Bellingham/Whatcom County, WA, 2016-09-01 to 2026-09-01; 12 event rows and 11 year-month aggregate rows compiled from broad web results — Whatcom County reports, City of Bellingham materials, local news and NWS-linked gauge history — with Whatcom County reports prioritized and events corroborated where possible. Counts are documented episodes, not all flooding; sub-event detail was cut for space.