Small Storm Now Affecting the Sierra with light snowfall and gusty winds……The current active weather pattern will likely continue though Christmas Day……
Saturday December 19, 2015
Posted at 3:01 pm by Howard
Sunday Afternoon…..Low and behold….. It just may be showing up in the longest range of the EC and GFS the pattern that we have been waiting for….End of the first week of January.
Sunday AM: Mammoth Mountain Reports 6 to 8 inches of new…
Best ‘Night of Light’s’ Ever at Canyon Lodge Last Night!! With a Fireworks Areal Display that rivaled any July Fourth Celebration…
Brief update this AM…..
There is quite an unsettled period developing with overall light snowfall expected on the east side of the sierra. Because of the lack of dynamics and angle of the upper flow to the sierra, the best snowfall will be over the west side of the sierra and up to the Crest. Areas east will have a lot of shadowing….. A windy pattern will developing as well with a WNW jet that will eventually sag south of Mammoth by Christmas Day. Strong gusty winds are highlighted beginning later today then on and off into Wednesday….. The Snow level will rise to the 7500 foot level by Tuesday afternoon but come down Wednesday and especially Christmas Eve and Day.
Snowfall amounts in town will be light through Wednesday. With no more than 1 to 5 inches in any 24 hours period. The Christmas Eve storm is likely to bring a foot plus. Wednesday appears to be the best day for travel…And again the following weekend
Because the models are differentiating on the exact track of the Christmas Storm…The Dweebs will fine tune this one early this coming week….
The Eastern Sierra will continue to have unsettled weather with more wind early to mid-week than precipitation. Today ‘s present storm according to California Rivers Forecast Center has the area between Yosemite to Huntington Lake with about .85 hundreds QPF. At 10:1 that’s about 8.5 inches of snow over the upper elevations.
The next pattern change coming up for next week is associated with a strong WNW jet that will drag a lot of moisture into Northern CA. However, only light to possibly moderate amounts will fall over the Southern Mono County Sierra Crest Sunday night into Tuesday Night. What we have here is a strong WNW upper jet into Northern CA and Oregon. This is potentially a very windy pattern for the upper elevations, Especially Monday into Tuesday night. However there will be waves in this upper flow that will bring wet snow to the Sierra. Note: If you are planning on Flying to Mammoth early next week, and especially Monday and Tuesday, you may want to have an alternate plan incase the flights are canceled due to strong winds. Wednesday does not look “as” windy and may be the best break from the upper jet which begins to pivot from the WNW to from WSW Wednesday into Thursday.
Of course there will be periods of precipitation beginning Sunday night on into Tuesday Night. It looks light Sunday night with about .25 of an inch of water EQ and possibly moderate precip Tuesday with amounts around .50. The snow level will be rising and so expect wet snow over the upper elevations with the snow level rising to about 7500 feet by Tuesday afternoon. It begins to come down Tuesday night into Wednesday and drops to 2700 feet by Friday AM. So Friday Christmas Day will be quite cold.
A colder storm is expected Christmas Eve into Christmas Day. That one may bring an 18 to 24 inch storm….Depending upon how quickly it moves in and out. It is expected to begin sometime between 4:00am and 10:00AM Thursday with heavy snow Thursday afternoon and snow showers Friday…..Saturday looks Blue Birdy.
Dr Howard and the Dweebs……………….:-)