Snow could fall on the valley floor by tonight as a series of storms bear down on the region creating possible blizzard conditions at times.
The snow level is predicted to drop to 1,500 feet, with more chances of snow into Tuesday as early holiday travelers hit the roads, according to the National Weather Service Medford office.
Chain advisories are being issued for mountainous areas, including the Siskiyou Summit, which had 8 inches of snow by Sunday evening.
The Oregon Department of Transportation already issued warnings of snow flurries and spots of ice on the summit Sunday, urging motorists to carry chains or have traction tires.
Medford had a brief respite from the rain Sunday afternoon, but another storm was bearing down on the area for the night.
"That front's going to be screaming in here this evening," said Tom Wright, meteorologist for the National Weather Service, on Sunday afternoon.
After this relatively warm front leaves the valley by this morning, a much colder system will rush in by Tuesday night, dropping temperatures down to 28 degrees in Medford and 25 degrees in Ashland.
Wright said forecasts indicate an inch or 2 of snow could fall in parts of the Medford area.
Cold weather will continue across the region through Tuesday night.
"There will definitely be a solid freeze everywhere from the coast to the inland," he said.
The storm system will hit the area in bands, so that one town might get up to 2 inches while another town could get several tenths of an inch, Wright said.
ODOT was warning motorists of possible blizzard conditions in the mountains.
A winter weather advisory for motorists will be in place from 1 p.m. today until 4 p.m. Tuesday for areas above 1,500 feet, with snow accumulations of 1 to 3 inches.
Many areas of Interstate 5 could have hazardous conditions during the storm period, so transportation officials are urging motorists to exercise caution while driving.
Call Damian Mann at 541-776-4476 or email firstname.lastname@example.org.