Mammoth Mountain & Eastern Sierra Weather Forecast
Mammoth Weather Update for Wednesday, July 28th, 2021
Synopsis: The main weather story through Saturday will be the continued daily thunderstorm chances.
Look for an increase in thunderstorm activity over the next few days before the threat ends and we dry out next week.
While impossible to nail down what exact locations get hit with t storms, areas that due could get up to an inch of rain by Saturday. With up to 2+ inches in some isolated locations in the back country.
Local area vegetation has moistened up a bit so the rain we have had helping at this point.
Temperatures: Look for the mid to upper 60s for Mammoth Mountain with a lot to mid-70s for Mammoth Lakes. Down in Bishop, it’s cooled off down into the low 90s.
In areas that do get under a heavy thunderstorm, temperatures can drop 20 or more degrees fast. Be prepared if you plan to be outdoor during the pm hours the next few days.
Winds: will be strong near Thunderstorms the next few days. Starting next week the good old SW afternoon winds will be back.
Smoke and Haze: We have been experiencing some haze with very light smoke at times. Nothing to worry about at this time.
Extended Outlook: Looking out over the next 16 days I am still not seeing any excessive heat waves. Some of the models want to keep the T Storms going for the next week before they try to dry us out.
Looking out towards Fall and into the Winter months, it’s looking dry and warm to start. Models have moved from a neutral winter to forecasting a la Nina to set up again.
Kind of early to jump on how strong it could be. Mammoth and the central Sierra have done good with weak La Nina’s, not so bad with moderate ones but if it’s strong again expect a drier year.
Mammoth Ski Patrol Weather Station
HRRR Temperature Forecast
HRRR Precipitation Forecast
HRRR Current Dew Point
HRRR Current Humidity Levels
ECMWF Accumulated Precipitation
ECMWF EPS Ensemble going out 10 days / 240 hour
Temperature Anomaly Outlook
Precipitation Anomaly Outlook
Forecasting Weather Images
The MOJO Outlook
Mammoth Mountain and Eastern Sierra Weather Posts
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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.
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