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Drastic Change In The Weather

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A cold front off shore this morning will pass through the region this afternoon bringing gusty winds, rain and a drastic drop in temperatures. The limiting factor with this storm will be moisture and thus most of the precipitation will be along and west of the Cascades in southern Oregon, in particular at the coast and higher elevations. The coast has a slight chance for isolated thunderstorms this afternoon with the potential for small hail to form. Inland areas could see graupel the next few days as well, especially for higher elevations. Elevations above 2,500 feet by tomorrow morning will be switching from rain to snow! Snow levels drop to 2,500 feet tonight and while snow will not accumulate at first  because roads and soils are still warm, the Cascade passes could see some snow-covered and slick roads by tomorrow morning as temperatures plummet tonight.  Starting this evening through Thursday we could see the following snow totals:

Cascade Passes and Siskiyou Summit: 2″-5″

Kalmiopsis including the newly re-opened Bear Camp Road: 8″-16″

Oregon Cascades: 4″-8″

Siskiyou County and east of the Cascades will see lesser totals but could potentially be up to 3 inches.

With gusty winds today and falling snow tonight the potential for wintery travel will be present, especially by tomorrow morning after snow has had a chance to stick to the roads. While east of the Cascades will see isolated to scattered showers, starting tonight most will be in the form of snow; and winds will be the main concern as gusts up to 45 to 55 mph are possible and a Wind Advisory has been issued from noon until 8 tonight for that area.

A cold air mass will settle over the Pacific Northwest through the remainder of the work week with Wednesday being the coldest day. Temperatures tomorrow morning will be near record lows; well below freezing on the east side could cause pipes to burst thus precautions should be made to protect your pipes. Some localized areas of the west side valleys of southern Oregon could see a frosty start to the day, with the highest threat for frost in the Shasta Valley where a Freeze Watch is in effect late tonight through early tomorrow morning.

Our Memorial Day weekend will be more mild (seasonable) in terms of temperatures but another disturbance will bring another chance for showers late weekend.

I’ll have the latest road reports tomorrow morning and will bring you the all the details on this storm, follow me on Facebook for more. Thanks for logging on and have a great Tuesday!

Meteorologist Megan Parry