A few linger snow showers are possible this morning. As current system exits….the upper jet still keeps it breezy this morning in the swift WSW upper flow. Upper ridging will build in this evening and diminish winds overnight somewhat. Without any major ridging….there will continue to be clouds and breezy conditions into the weekend.

Next swath of tropical/Subtropical moisture will leave Hawaiian Islands Friday and head for Northern and Central Ca for Saturday. The meat of it really does not get into the Central Sierra until Saturday night with the bulk of it destined for Northern Ca.  This is sort of a replay of the pattern we just went through, except that the colder portion of this next system is colder, more dynamic and negative tilt for Late Sunday night into Monday. Warm advection precipitation with higher snow levels will again effect the Mammoth area Saturday night into Sunday with the snow level plummeting about Sunday Midnight with the FROPA. 1000mb-500mb thicknesses is about 534dm by early Monday am behind the front. Should be good for a 3500 to 4000 foot Snow Level Monday Am.  Best guess….Looks like another foot and a half for the crest. Will update on QPF Friday for the end of the week.

Models are forecasting a ridge over us next Wednesday for some nice weather…..Then timing of next system about Thursday night.

Updated propagation of Amplification “group velocity” of combined long and short wave energy across the Pacific per Hovmoller.

12z 1st-12z 5th Sat AM

12z 4th-12z 8th Tues AM

00z 7th-00z 11th Thu PM

00z 10th-00z 15th Mon PM
Bering sea high remains an anchor feature with series of systems moving across pacific at mid latitudes. Good cold air coming off Asia and resulting cyclogenesis off japan to keep this energy strongly propagating under the high latitude block in the Bering sea. 
The Dweeber……………………:-)


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Reference Glossary of Weather Terms
Disclaimer: I have been a hobbyist meteorologist for over 30 years here in the Mammoth area and I do this for my personal enjoyment. The National Weather Service saves lives every day . . . I do not. When making important planning decisions please use information provided by the National Weather Service as they are the most knowledgeable and accurate information source available today.