1 advisory is in effect for Whatcom County, WA. The most serious is a coastal flood advisory.
Since 2016 the National Weather Service has issued about 521 alerts that included Whatcom County, roughly 52 a year. The most common is the wind advisory (167 from 2016 to 2025). No tornado warnings were recorded here in that period. 1 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
San Juan County; Lowlands of Western Whatcom CountyUntil · NWS Seattle WA
COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY
Full alert text
* WHAT...Minor coastal flooding. Inundation of 1.75 to 2.25 feet
above ground level is possible along shorelines and low-lying
coastal areas.
* WHERE...San Juan County and Lowlands of Western Whatcom County
zones.
* WHEN...Until noon PST today.
* IMPACTS...Minor coastal flooding due to tidal overflow is
expected around high tide. This may lead to flooding of
parking lots, parks, and roads, with only isolated road
closures expected.
What to do: If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.
Inundation above ground level refers to the height above the Mean
Higher High Water (MHHW) level.
Map data: NWS, OpenFreeMap, OpenStreetMap
Recent alerts in Whatcom County
Issued
Alert
Area
Nov 14, 10:43 AM EST
Coastal Flood Advisory
San Juan County; Lowlands of Western Whatcom County
Whatcom County alert history
Alert events that included Whatcom County or its forecast zones, from the NWS warning archive.
1 tornadoes have been recorded in Whatcom County since 1950. That ranks 24 of 39 counties in Washington. The most recent was on April 27, 2004 (rated F0).