First Day of Spring….
The past week was good but it’s time to move forward. There is another storm approaching the Pacific NW that will move in on Tuesday. Warmer air coming up ahead of the storm is overriding the cold air in place and some light snow showers are breaking out around the lake. The ridge off the coast will continue to build in toward CA through the middle of the week with temperatures warming back into the 40′s and 50′s by Wednesday and Thursday.
Another storm will move into the Pacific NW on Thursday flattening the ridge but most of the precip will still stay to the North of Tahoe. We could see a few light snow showers on the mountains and some light rain/snow showers at lake level. Although the weather will stay unsettled we won’t see any accumulating snow through Friday as the big snows stay to the North.
Then the trough will dig down off the coast as the ridge builds in over the West. The ridge over the West will try to keep the trough from pushing inland but it looks like the next storm coming across the Pacific will help to start pushing it inland over the weekend. Some forecast models show the cold front pushing in Saturday and slowly spinning across CA through Monday, while others Sunday through Tuesday. The other question is how weakened will the low be and how much moisture will it have when it comes in. The Southerly flow on the East side of the storm will keep most of the precip on the crest at first. Right now models show anything from a foot up to 3 feet over the trough day period.
The next upstream system that helps to push the first one inland may move in right on the heels of the first next Wednesday. Some forecast models show it becoming a cut-off low as well but coming inland by Thursday as the first storm has cleared the way and another storm behind it will help to push it inland. Another storm is right behind that and could push in by Saturday the 31st.
We will have to continue to watch the track of the systems next week to see how far South they end up coming and how much precip they can bring into Tahoe. BA
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