Recreational Weather for Mammoth Mountain and Eastern Sierra

Mammoth Mountain & Eastern Sierra Weather Forecast

Recreational Weather for Mammoth Mountain and Eastern Sierra

July 5th, 2022 @ 11:50 AM – Hello good afternoon this is the Snowman with your Mammoth Mountain and Eastern Sierra Weather Forecast.

Cool Days with breezy SW winds at times will be the rule for most of the week here in the Eastern Sierra.

As the trough of low pressure that is off the coast starts to weaken, temperatures will slowly come up to about average by Thursday into Saturday.

This is a dry pattern so no Summer Thunder Storms can be expected this week. 

If you’re going to be out for an adventure this week, here is what you can expect for highs, lows, and winds the next few days.

Elevation 8900 Feet @ the Main Lodge and the Mammoth Lakes Basin. Sunny, with highs in the low to mid-60s. It will continue to be breezy, with a southwest wind of 15 to 25 mph, with gusts as high as 35 mph. Higher elevations will see higher wind gusts at times.

Elevation 7900 Feet @ Mammoth Lakes Sunny, with highs in the upper 60s to low 70s. Winds will be southwest at 15 to 20 mph, with gusts as high as 30-35 mph.

Elevation 4200 Feet @ Bishop to Mill Pond Sunny, with highs in the low-90s.  Afternoon winds will be south to southeast at 11 to 20 mph, with gusts as high as 30 mph. Lows during the early morning hours will be down into the upper 50s.

Here are the links to the specific highs, lows, and wind speeds for many of the major recreation points in the Eastern Sierra: Mammoth Mountain Main Lodge, Top of Mammoth Mountain, Mammoth Lakes, June Lake, Crowley Lake, Toms Place, Rock Creek Lake, Bishop & Mill Pond, South Lake.

**Locals Tip: As we move into Summer if you’re coming up bring a fan with you if you’re staying in a condo or home. They help big time when it’s warm and muggy in the high country. We have 4 of them along with ceiling fans that run when it’s Summer time. No AC in Mammoth so be prepared.

Have a great day and I hope to see you out on the hill for some Mountain Bike action soon, Snowman

10 Day Outlook Model Runs

July 5th, 2022 @ 11:24 AM – A deep low-pressure system for the Summer season sits just off the coast of Northern California and Oregon. That system will continue to keep temperatures below the average along with breezy conditions for the high country and all areas during the pm hours most of the week.

That system will take most of the weak to weaken, during that time the low stays in almost the same location. By next Sunday heights will have rise again and the Eastern Sierra will be a bit above average temperature-wise.

Out around day 10, it looks like a good old-fashioned Summer time warm-up will begin.

While not in the extreme heat range like last Summer’s events it looks like the Eastern Sierra will get hot and muggy as the EPS brings in enough moisture for daily afternoon thunderstorms. For those planning back-country travel, this is something to be watching and be prepared for.

Pray now that those T storms are abundantly wet as it’s getting very dry in the forest at this time.

PS: I also suggest everyone get N95 masks and keep them in their backpacks or bike bags. If we do get any local fire starts the higher grade masks will help with particulates, the blue masks are worthless in wildfires, don’t buy the lie that they work.

Here is the EPS .gif for the next 10 days.

EPS 10 Day Temperature Anomaly Chart 

EPS 10 Day 24 Hour Precipitation Chart

EPS 45 Day Ensemble Mean

There are 2 updates a week that we get for this the EPS 45 Day, the run below is from the 23rd of June.

This is the EPS 45 Day Height Anomaly GIF.

EPS 45 Day Temperature Anomaly

EPS 45 Day Precipitation Anomaly Chart – There are a couple shots for precipitation later this month.

ECMWF & CFS v2 Long Range Seasonal Outlook
for July 2022

7-7-22 @ 5:47 PM Here are the most recent long range fantasy Euro & CFS outlook data.

Looking at the information the EU model as a neutral Nino state for the upcoming snow season. With December and January having above average precipitation.

Got to take it all with a grain of salt as the CFS v2 wants to have us in the weak La Nina state with well below normal precipitation through December and then normal in January.

Of course this is all long range fantasy data that can be fun to look at on a hot Summer day. Let’s hope and pray that over the next few months both these models go green for the wet month of late 22 and and 2023.

**The new Euro data comes out each month around the 5th of the month. The next update on this data will be around August 7th here at the Mammoth Snowman website.

ENSO - La Nina & El Nino

6-2013-22 Looking for latest information on the ENSO?

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 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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