Flooding from prolonged atmospheric river expected in Monroe, Snohomish

SNOHOMISH — Flooding along the Snohomish River could inundate roads and farm land near Monroe through the weekend, the National Weather Service said in a Friday warning.

In the flood warning, the National Weather Service in Seattle said that the Snohomish River was expected to rise to 17 feet by noon Friday in the Monroe area. It is expected to crest near 18.3 feet by Friday night. Flood stage along the river in that area is at 15 feet. The flooding will likely impact farmlands, roads and some residential areas, according to the National Oceanic and Atmospheric Administration, known as NOAA. Levees will likely be damaged.

On Friday afternoon, water levels along the Snohomish River were high, forcing the closure of the riverfront trail in Snohomish. That city is also expected to see major flooding around 11 p.m. Friday, with an expected crest of 30.5 feet, according to data from NOAA. Low farmlands and some roads could be flooded, according to NOAA.

Other parts of the county faced less severe flood warnings. The Skykomish River near Gold Bar will see moderate flooding through early Saturday morning, according to the National Weather Service. The Stillaguamish River at Arlington will see minor flooding.

https://www.heraldnet.com/2026/03/20/flooding-from-prolonged-atmospheric-river-expected-in-monroe-snohomish/