National Weather Service United States Department of Commerce

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Overall travel conditions should be smooth through Christmas Day. A system tracking through the region brings a round of snow and possibly freezing rain Christmas night into Friday. Highest snowfall amounts are expected in the northern half of the U.P.
Although amounts should be mainly light, some snow and/or freezing rain could impact post-Christmas travel Thursday night into Friday. Please continue to monitor the forecast if you have travel plans.
If you have post-travel plans to or from lower MI Thursday night into Friday, be aware of the potential for light snow and freezing rain to impact travel, especially over parts of the Lower Peninsula.