A significant storm for the mountains is shaping up for Northern California and parts of Southern Oregon. Heavy snow will fall in the Mt. Shasta, Black Butte and Snowman’s Pass area, and including other locations of Siskiyou County above 3,500 feet Tuesday and Wednesday. Some snow will fall to as low as 2,500 feet, and very heavy snow accumulations above 4,000 feet of 6 to 15 inches on Tuesday and Tuesday night, with additional accumulations Wednesday. Southern Oregon’s Cascades, Siskiyou’s, Coastal Ranges and mountain passes over Klamath and Lake Counties will see accumulating snow. At least 6 to 12 inches for the Cascades and Siskiyou’s and 3 to 7 inches for mountain passes east of the Cascades. In the Basin, Klamath Falls and lower elevations will accumulate 2 to 4 inches, most of which will come late Tuesday and early Wednesday…followed by snow showers and colder weather later Wednesday through Thursday.
The Valleys of Western Oregon will see rain, heavy at times from the Illinois Valley to the Western Rogue Valley (including Grants Pass) and into Southern Douglas County. 1/2 to 1 and 1/2 inches of rain is likely here. While the rain shadowing impact of the Siskiyou’s on Medford, Ashland, Central Point to Eagle Point will be evident…with lower amounts in the 1/4 to 1/2 inch range.
Along the Coast, 2 to 5 inches of rain will fall Tuesday, with additional accumulations Wednesday and Thursday. Heaviest amounts will fall in Southern Curry County and the nearby hills and mountains.
Friday will see an off-shore flow and drying conditions region-wide. The weekend looks spectacular, as high pressure brings a return to sunshine and 60′s.