South Central Oregon Cascades

An strong system will move into the region Tuesday... bringing an
unseasonably cold air mass with it. Snow levels may drop to around
2500 feet by Wednesday morning. This will bring snow to all of the
Cascade passes with 2 to 5 inches possible. Siskiyou Summit may
see several inches of snow with lower amounts in The Mount Shasta
area... and snow levels may drop briefly down to lower passes like
Sexton Summit briefly as well. However... with the longer days and
higher sun angles... soil and Road temps are quite warm with the
Medford agrimet showing soil temps in the mid 60s and both
Siskiyous and Sexton Summit Road temps in the upper 80s into the
90s today. With this warm soil and Road temps even a moderate to
heavy rain preceding the cooler air mass will not cool surface
enough to allow any snow that falls to last more than a couple of
hours on the passes of the I-5 corridor. In the Cascades the snow
may last a little longer off-Road.