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Photos show atmospheric river bringing flooding to Pacific Northwest

Photos show atmospheric river bringing flooding to Pacific Northwest

Western parts of the Pacific Northwestare facing flooding after an atmospheric river moved over the region.

On Tuesday, Dec. 9, Washington and Oregon saw heavy rain that impacted local waterways, according to the National Weather Service in Seattle. Areas in Washington experienced at least half an inch of rain per hour.

Paradise, Washington, located on the south slope of Mount Rainier National Park, around 103 miles southeast of Seattle, received 3.25 inches of rain in the last 10 hours.

The flooding was caused by an atmospheric river. These systems, which are often called a "Pineapple Express," are a "long, narrow region in the atmosphere – like rivers in the sky – that transports most of the water vapor outside of the tropics," according to theNational Oceanic and Atmospheric Administration.

The flooding was brought on after two atmospheric rivers moved over the region back-to-back, according toAccuWeather

The atmospheric river has shifted southward this morning, but we're not out of the woods just yet. Precipitation will shift back northward later today, bringing another round of heavy rainfall and causing significant river flooding to continue.#WAwxpic.twitter.com/jbnOi2Aisn

— NWS Seattle (@NWSSeattle)December 9, 2025

The Pacific Northwest region includes Oregon, Washington, Idaho and British Columbia, Canada. Oregon and Washington were the states primarily affected on Dec. 9.

Significant river flooding is expected to continue throughout the week, but drier conditions are possible during the weekend, according to the NWS.

Photos show the aftermath of the torrential downpour, including cars submerged halfway in flood waters and residents using boats to navigate flooded areas.

From floods to fires:See FEMA respond to disasters across the US

See photos of the flooding in Washington, Oregon

A drone view shows a person walking between baseball fields flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A drone view shows a home surrounded by water in an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A drone view shows a property flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. Bob Peterson uses a boat to search for items that floated away from a little league baseball field in an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A drone view shows vehicles in an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A drone view shows baseball fields flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A drone view shows an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A drone view shows a home surrounded by water in an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A drone view shows Bob Peterson using a boat to search for items that floated away from a little league baseball field in an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A drone view shows an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A drone view shows farmland in an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A car drives through standing water on Commercial Street SE on Friday, Dec. 5, 2025, in Salem, Ore.

Atmospheric river brings chaotic weather to Washington and Oregon

Drew Glastetter walks through floodwaters in an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, on Dec. 9, 2025. Bob Peterson uses a boat to search for items that floated away from a little league baseball field in an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, on Dec. 9, 2025. A drone view shows an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, U.S., December 9, 2025. A drone view shows a home surrounded by water in an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, on Dec. 9, 2025. A drone view shows vehicles in an area flooded by the Snoqualmie River, as an atmospheric river brings rain and flooding to the Pacific Northwest, in Fall City, Washington, on Dec. 9, 2025.

Julia is a Trending reporter for USA TODAY and covers scientific studies and trending news. Connect with her onLinkedIn,X,Instagram, andTikTok: @juliamariegz, or email her at jgomez@gannett.com

This article originally appeared on USA TODAY:See photos of Pacific Northwest flooding in Washington, Oregon

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