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Pacific Northwest Braces for Atmospheric River and Flooding

12/15/2025

39 3 Full Breakdown

Summary

Story summary

Rain returns to the Pacific Northwest as a low-pressure system moves in, bringing warmer-than-average temperatures.
Light morning showers are reported, with heavier rain expected overnight and into the week.
An atmospheric river is projected to hit Thursday, delivering 1-2 inches of rain, especially in the mountains.
Flooding concerns remain for rivers and streams.
Snow accumulation in the Cascades could reach 15-20 inches by Friday night.

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Story summary

Rain returns to the Pacific Northwest as a low-pressure system moves in, bringing warmer-than-average temperatures.
Light morning showers are reported, with heavier rain expected overnight and into the week.
An atmospheric river is projected to hit Thursday, delivering 1-2 inches of rain, especially in the mountains.
Flooding concerns remain for rivers and streams.
Snow accumulation in the Cascades could reach 15-20 inches by Friday night.