California is basking in the spring sun this week with temperatures in the Sierra up into the 50’s and 60’s. This is on the south side of a warm subtropical jet stream streaming copious amounts of moisture into Washington state and the Cascades.
In Washington the high snow levels and rain in the mountains is causing a lot of runoff. Further south in California the skiers are lathering up with plenty of sunscreen. The pattern will begin to change this weekend so don’t get too used to spring just yet.
By Saturday and Sunday a much colder but weaker storm will be moving into the Pacific Northwest with lowering snow levels in the Cascades. There could be several inches over the weekend. Further South the Sierra Nevada will only see some clouds and high temperatures lowering about 10 degrees by Sunday.
Next week the pattern undergoes even more changes. Cold low pressure will begin to work its way down the West Coast from the Gulf of Alaska and will merge with a system moving East from near Hawaii. The two will combine to bring what could be quite a bit of snow to the mountains of the entire West Coast.
If the current forecast holds, several areas may be measuring the snow in feet by the end of next week. That will be quite a drastic change over this week for skiers in California. Don’t put away the coats quite yet.
Bryan Allegretto is a Weather Forecaster for OpenSnow.com.
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