A rather cool weekend shaping up as off shore Trofing pushes east through California….A little frost possible in the wind protected valleys, Sunday AM…Warmer early next week ….

This Summer has shown to be quite the trough’y one with very low thunderstorm days. Highs in Mammoth have run a good 5 to 6 degrees below normal this Summer.   In fact our average warmest day in July is 88 degrees, while 80 was the warmest.  We are settling in on a cool breezy weekend as low pressure from the Gulf of AK spreads cooling of some 5 to 7 degrees tomorrow in the high country.  Expect highs in the low to mid 60s on Saturday with breezy dry weather. Sunday morning, lows with range in the 30s and 40s.   Some cool spots like Devels Post Pile and Tuolumne Meadows may actually drop to the 20s Sunday AM.  Some frost is expected…..First taste of Fall?


Expect warmer weather with highs returning to near normal, then cooler the following weekend….Long range models continue the trend of the west coast Trof more often than not in August. this is typically a mild dry pattern with breezy weather in the high country. However, any tropical storm later this month could come into play getting caught up in the upper flow….


Dr Howard and the Dweebs………………….:-)

The return of troughing along the west coast will bring slightly cooler temperatures this week along with an enhanced Zephyr…The pattern will ensure a dry week for Mammoth Lakes….

Latest update shows an upper off-shore trough will keep our air-mass dry through at least Saturday.   The Southwest flow brings both stability to our atmosphere as well as a drier air-mass. Some cooling will occur by midweek with high temps settling back to the mid 70s from a high of 79 on Sunday. Lows at night that have been in the 50s will cool down to the 40s in the more wind protected areas. The Mono County Zephyr will be enhanced each afternoon and evening hours so that areas of Town like the Mammoth Meadow area will have gusts to at least 30 mph. Other areas of town will have west winds in the 10 to 20 mph range. The SW Monsoon and its air-mass modifying effects has shifted well east of California, not allowing any related precipitation at least through Saturday. This is true for both the Southern and Central Sierra. Some of the global models this morning try to build back westward, the continental high, strong enough to bring a warm up,  along with moisture, and the air-mass modification. Thus will introduce  the slight chance of showers and thunderstorms by early next week.  At the moment, it is only a slight chance, until there is more agreement with in the global models for that following week.


Dr Howard and the Dweebs……………………………………:-)


Weather to turn dry again following a wet Thursday…Warmest temps of the Summer Sunday and Monday…..Dry weather to continue through next Friday….Will the Monsoon deliver the final act of the Bluesapalooza?

After a brief encounter with the SW Monsoon, The series of upper trofs moving through the pacific NW will deepen, pushing drier air into the region. As the same time, the Continental High will retrograde westward and become stretched East-West, shunting Monsoon moisture to the south over old Mexico.  The core of the warm air gets centered more over California in the days to come. As a result, instead of the troughing providing cooling, higher heights aloft will create warming instead.  Expect Mammoth to approach 80 degrees by Sunday with little change in temps through Tuesday.  Our Mono County Zephyr will be back early next week providing the usual afternoon and evening winds. The drier air will allow nighttime temps to lower into the 40s……So great sleeping weather ahead!!

The  Bluesapalooza, “Blues and Brews fest” is next weekend. The weather pattern has the Continental High shifting east again by then. As a result, it is possible that Monsoon moisture may make a return by next Saturday or Sunday. Lets hope it’s the end of the week!

The Dweebs will update later this week.


Daytime highs in the upper 70s and low 80s the next 5 days with night time lows cooling to the 40s.   The Mono County Zephyr will pick up in the days ahead into the 15 to 30 MPH range in the breeziest arenas of town…. That is in the afternoon and evening hours…


Dr Howard and the Dweebs………………………..:-)