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3 snow storms next 8 days - even better news

donbrown

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Blocking Pattern over Northwest Canada will suppress Upper Jet well South into CA this week and into the next…Expect cooler than normal temps with periods of Rain and Snow in the High County…


Tuesday May 12, 2015


Posted at 8:50 am by Howard
.

Wednesday AM Update:

It appears that we have 3 significant short waves (Storms) to expect weather from.

1. The 14th and 15th. Cold Spring system with subtropical tap. A foot+ possible over Mammoth Mtn (4 to 7) inches at 8K….. (2 to 4 inches above 6500)
2. The 17th through the 19th ( Not as cold as Thursdays system) Snow level above 7.5K to 8K
3. *Possibly the 21st and 22nd; then outlook into the end of the month.

Interestingly….the polar jet actually couples with the subtropical jet with these systems giving them more boost…

Observation…..look at the **16K IR Satellite. You can actually see the results of El Nino in the “Massively Strong Convection” north of the equator over the Nino Basin. This is acting to spin up the subtropical jet and depress the Hadley Cell to the south to 130W/20N as the jet curves over and past the Big Island of Hawaii. So we are already seeing the incipient results from an increasingly warm Nino Basin over the Subtropical Eastern Pacific.

*Note: The NW Canadian Block will be breaking down during the end of the 3rd week of May with the anomalous 500MB heights lowering in that area. This should allow the upper jet to lift back to the north with the majority of anomalous precipitation shifting into the Northern Great Basin, Northward. Warmer and drier weather should be the result over the central sierra, except for some isolated thunderstorms the last week of May.

** SEE: http://sat.wrh.noaa.gov/satellite/loopsat.php?wfo=mtr&area=west&type=ir&size=16

Climate:

The new updated PDO for the month of April is out. It shows the strong positive record-breaking teleconnection that has been grossly responsible for this years drought is weakening rapidly…..The updated AMO is still negative which is a good thing.



Dr Howard and the Dweebs…………………………….:)
.- See more at: http://mammothweather.com/#sthash.TDmA7xEn.dpuf
 
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