Archive for July, 2011

Minor Gulf of California Surge Developing Sunday Pm into Tuesday adding to 1st Monsoon surge this year….

A deep, rich moisture pool is now over Mexico with much of it the result of now defunct TS Arleen. A .75 – 1.00 area of PWAT is expected to surge north through Mammoth by Mid week. As the Continental high forms over the four corner states, moisture and vorticity will be channeled up the Eastern Sierra early next week with the moisture surge peaking about Tuesday PM into Wednesday Night. Showers and Thunder A good Bet.  This will be the first Monsoon Surge this season.  High temps in Mammoth will peak Sunday. With the moisture advection expected early next week the high temps may be tempered a bit pulling back into the low 80s by Tuesday/Wednesday.


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.

Above Normal Temperatures Arrive In Eastern California Today With A Chance Of Thunder By Sunday…..Mammoth is set for its first string of 80+ degree days beginning today!

The mean upper high over Texas and Oklahoma is forecast to expand westward during the next 5 days. As it does several things will happen:

1. It will get really hot across the desert regions of California and very warm here at resort levels. (low to mid 80s in Mammoth and June)
2. Lower surface pressures will begin to draw up a little moisture from old Mexico, juicing 700mb levels to our south. 

    a. This will begin the process of convection each day with isolated showers and thunderstorms over/east of the crest. The Dweebs refer to this a passive juicing as parcels of air get lifted and accumulate over a period of days in the mid levels.  (Note, the Dweebs do not expect this to be a classic monsoon pattern yet…however the long range models are trending that way toward mid July as a HT 500; 594dm sets up over Utah.

    b. The Mono Zephyr will begin to converge with southerly flow from up the Owens Valley, with forcing (surface convergence in the usual areas)  (IE Sherwin Grade to Bodie Hills)

3. The heated deserts will increase sea breezes forcing more air over the anomalously cold waters off the California coast (-PDO) with more June Gloom in July.

All in all it is really Summer now here in the Eastern Sierra as we have just had out last gasp of Winter on Wednesday!

Let the Summer Fun Begin!!! If you have not planted yet in the high country….go now and plant!


Dr Howard and the Dweebs…………………………:-)

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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.