CNN —A powerful “bomb cyclone” will combine with an atmospheric river to unleash over a month’s worth of rain, hurricane-force wind gusts and feet of mountain snow to parts of the Pacific Northwest and Northern California.
This bomb cyclone will work with an atmospheric river, a long plume of water vapor moving like a river through the atmosphere, to wring out heavy rainfall and significant mountain snowfall in the Pacific Northwest and Northern California beginning Tuesday.
The pair will stall along the coast and hammer the area with hazardous conditions through the week and into the weekend.
Rainfall of this magnitude is expected to cause significant urban flooding, debris flow on roadways and river flooding.
Strong winds could cause extensive damage to trees and power lines,” the National Weather Service office in Seattle warned.
Persons:
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Organizations:
CNN, National Weather Service, Weather Prediction, WPC
Locations:
Pacific Northwest, Northern California, San Francisco, Medford , Oregon, California, San Francisco Bay, Oregon, Washington, Seattle, Sierra Nevada