Mammoth Mountain Reports 4 to 6 inches of fresh snowfall overnight…..another 4 to 6 inches likely by Thursday…….Main portion of storm to move in late today……Snowfall expected Tonight into Thursday morning then showery weather into Thursday Night with Upslope Snowfall…..
Wednesday November 20, 2013
Posted at 9:04 am by Howard
Thursday AM Update:
Storm total as reported by mammoth Mountain is 7 to 11 inches….pretty much in line with what the Dweebs forecasted….which was 5 to 10 inches then increased to 8 to 12 yesterday AM.
We still may squeeze out another 1 to 3 inches from the next system as the flow at 700mh switches and becomes NE. This is the last in the series of short wave energy with this one coming down and spinning up into a cut off low. So a upslope pattern will develop today in the cold air. The Dweebs note that 700RH blows up this afternoon over the eastern slopes between mid afternoon and this evening. No doubt there will be a few more inches of snowfall here and there. the Dweebs are expecting another 1 to 3 inches by late tonight. The bulk for the precip from this system will be to the south of us with areas of the Owens Valley and Southern Sierra getting quite a bit of precip south of Olancha.
12:30pm Update: Longer Range
Longer Range 12Z Wednesday ECMWF model still has storm system moving toward the South Central West Coast. Looks to be a potentially good precip producer for Mono County Southward beginning Wednesday afternoon the 27th into Thursday. There after system may tap into good moisture pool for significant rains for SC. More later……..
An impressive 4 to 6 inches of snowfall occurred on Mammoth Mountain last night. Not from the stand point that 4 to 6 inches is a lot to fall on Old Woolly, but in that it was mostly orographically induced. Mammoth Weather.com picked up only .05 hundreds……so a lot of Topo Lift was occurring last night to get that much snow! In that the main dynamics is still yet to come, we could reasonably see another 4 to 6 by Thursday, as the meat of the lift comes in later today into tonight. Colder air following moving into the area later today and tonight is a plus for the snow pushers in town. Nice to see a baroclinic leaf forming in back of the wave off the coast of SFO at 8:45am, Wish we could get some of that! Maybe we will late this afternoon. I will have another update later today as the rest of the new guidance comes in. PS Mono Wind event possible for West Side of the Sierra this weekend….Not to worry for Mammoth just a Chilly breezy weekend
Longer Range: Development of Mid Latitude upper low with eventual subtropical fetch for the offering……
This may morph into quite the wet system for Southern California between Thanksgiving and the end of that week……
ECMWF has areas of 2.00 inches that following weekend….