UNITED STATES - An atmospheric river storm is forecast to make landfall in the Pacific Northwest on Sunday, with moderate to heavy rainfall continuing through early Tuesday.
The National Weather Service reported that the atmospheric river will be fueled by “what remains of a tropical system.” This is in reference to Typhoon Ewiniar, which hit the Philippines hard this week due to flooding rain and strong winds, leaving several casualties.
As reported by The San Francisco Chronicle, with a pseudo-tropical air mass in place, PNW weather will be rainy, with a chance on Monday for that day to be the wettest June day in recorded history in a few portions of Washington.
Northwestern California will also be affected, with rainfall reported for Crescent City and Eureka. As the news source noted, heavy rainfall is unlikely to reach the Bay Area, but the system will help reinvigorate the marine layer. The source also expressed hope in the system contributing to staving off any seasonal start to wildfires in the state.
Rainfall is forecast to exceed an inch in Seattle, Washington, and Portland, Oregon, with totals of 2–4 inches expected in the Cascade and Olympic mountains.
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