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Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Daily Flash Flood Risk

Last Updated: —

These risk levels are set each morning by 6 AM MST and will not be updated for ongoing weather. Remember: any thunderstorm can cause flash flooding, even on low-risk days.

Flash Flood Risk Legend
None
Minor
Moderate
Major
Extreme

Flash Flood Risk Areas

Flash Flood Threat Area

Current Hazards

Rainfall Chances

Day 1

Day 1 Chances of Precipitation

Day 2

Day 2 Chances of Precipitation

Day 3

Day 3 Chances of Precipitation