Mammoth Mountain Weather Forecast & Discussion

December, 8th 2022 @ 10 AM – Winter Storm Watch Friday night through Sunday

Winds are picking up out of the SW in front of a weak system that will move through the area tonight into Friday morning. There could be 2-4 inches of fresh snow out of this first system with a break in the action for most of Friday.

The next large weather system moves in early Saturday and will bring with it waves of moderate to heavy snowfall along with moderate to very strong winds at times.

Snow levels will start out around 7000 feet and then drop down to Bishop by Sunday morning. There is a sub tropical hook up so expect the snowfall amounts to be in the 2-4 foot range. If we buy in the GFS forecast the snowfall total could be even higher.

The winds during this system are forecast at Main Lodge to be southwest @ 25 to 30 mph, with gusts as high as 50-60 mph. Up top wind gusts will be in the 80-100 MPH range at times Saturday into Sunday.

As of now the following week is looking bluebird to pt cloud with more snow possible for the Night of Lights weekend.

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Here is the ECMWF going out to 10 days.

Here is the ECMWF Snowfall GIF for the next 10 days

Here is the GFS 24 Hour Snowfall GIF

ECMWF – Temperature Anomaly

November into March Mammoth Weather Trends

12-8-2022 @ 10 AM – The new run of the EPS Seasonal is out and it continues to show the trend of an average to above-average winter for snowfall. So good vibes moving forward as we continue with this snow season.

See you out on the hill, Snowman

Mammoth Mountain and Eastern Sierra Weather Posts

Who Are We?

Steve Taylor – Mammoth Snowman – Over the last 30+ years, Snowman has spent countless hours studying and learning about Mammoth Mountain Weather and Snow Conditions first hand. He has been skiing around the hill with marked ski poles since March of 1991 so he can measure the fresh snowfall amounts out on the hill. 

Snowman started blogging this information back in 1990 on the old Mammoth BBS system, then the RSN Forums and then on to MammothSnowman.com in 2004 with Video & Photo Blog report. (No YouTube back then). Facebook got added to the fold back in 2008 and then the Facebook Group in 2016. 

Reports, videos, and photos from the website have been featured on both local TV Stations here in Mammoth, along with AP, Fox, ABC, CBS, and NBC News.

Ted Schlaepfer – Mammoth WeatherGuy – The Powder Forecast – Posted Tuesday and Fridays at 5 PM November into Mid May. These forecasts are now responsible for many people getting multiple powder days on Mammoth Mountain over the years.  

Ted’s Bio: Ted has been a full-time Meteorologist (CCM) for the past 25+ years. He has always been fascinated with the weather,” skiing was just a natural extension of my love for snow and rain. I started skiing at age 5,  first discovered Mammoth in 1979 as a youth, and have been a regular visitor since the late ’80s.”.

Here is the link to The WeatherGuys Powder Forecast Page. 

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