Another cold front will bring another round of rain Wednesday morning with the heaviest rain falling along the coast and coastal mountains, the Mt Shasta area and Cascades. Snow levels will start around 4,000 feet Wednesday then drop to 3,500′ Wednesday night and potentially down to 3,000′ at times and this could cause travel problems over Highways 140, 230 and 66 especially around Crater Lake and Diamond Lake; even Siskiyou Summit may pick up an inch or two by Thursday morning. Shower activity will be decreasing Wednesday night into Thursday which could lead to lighter totals and less travel impacts.
Rain on Thursday will be lighter and more isolated but this break is short lived as the heaviest rain of the week will arrive Friday and Saturday as we tap into tropical moisture. The cold fronts the first half of the week are coming from a colder and drier origin and wont be as impressive as Friday’s storm, with the biggest impacts at the coast and coastal mountains through Thursday.
Friday and Saturday’s storm is tapping into tropical moisture which means a lot of moisture, gusty winds and high snow levels. Snow levels will climb back to 7,000 feet by Saturday so travel impacts will be minimal. Showers will taper off Sunday before returning Monday afternoon.
Meteorologist Megan Parry