Mammoth Mountain Weather Forecast & Discussion

January 11th @ 6 PM Good evening, currently out on Mammoth Mountain you will find cloudy skies with light to moderate snow falling at this time. Up top, the temperature is 21 degrees with SW winds at 19 with gusts to 30 MPH at times with 4 inches of fresh snow today. Down at Main Lodge, the temperature is 28 with light wind and 3 1/2 inches of ne

w snow since 6 AM.

If you’re going to be out on Mammoth Mountain the next couple of days here is what you can expect weather-wise.

For Thursday expect morning lows at first bell in the low 20s. Mid-day temperatures will be in the mid to upper 30s. Winds will be SW @ 15 to 20 mph, with gusts 25-30 mph over the higher elevations.

On Friday look for increasing clouds with a chance of snow showers developing during the day, SW winds @ 15 to 20 mph, with gusts as high as 35-45+ mph over the mid and upper mountain.

The Martin Luther King Weekend Outlook is calling for more light to heavy snowfall at times right into Monday. Looks like the inches forecast is off the table as there could be a couple feet of fresh by Sunday. The snow will be heavy and wet at around a 8-1 ratio Saturday into Sunday.

Next week the snow continues with several feet of snow possible during the early part of the week, the fine details will be worked out in later posts.

The next big break in the weather will be coming around the 20th of this month when a blocking ridge of high pressure sets up to the west of Mammoth Mountain and the Eastern Sierra.

If the ridge ends up in that position Mammoth Mountain could come under the influence of several inside sliders along with some cold winter temperatures like we had before this current mid latitude storm cycle.

What the good people of Mammoth Lakes need right now is a break so snow removal crews can catch up and people can recover.

Happy Winter Day Everyone, Snowman 

Mammoth Mountain Weather Radar Image Live Feed from Intelicast
Mammoth Mountain Weather Radar Image Live Feed from Intelicast
Mammoth Mountain Weather Satellite View Live Feed from W.U.
Mammoth Mountain Weather Satellite Image Live Feed
Well Above Avarage Snowfall for January 10th

Mammoth Mountain Weather Synopsis / Forecast & Data

January 10th, 2023 @ 10:36 AM

The mid-latitude storm door will be winding done now as the last significant AR band has moved thru the area. Next up will be the Main core of the low that’s just offshore. As that mass moves into the Mammoth Mountain area there will be more moderate to heavy snow showers at times. The snowfall between cells will remain light and last right into Wednesday afternoon. 

After Wednesday’s light snow, the area will get a break from the snowfall into mid-day Friday when snow showers could start creeping back into the area.

By Saturday morning there should be several inches of fresh snow on the ground with a foot expected over the following 12 hours. More snow is expected Sunday into the following Tuesday when the ECM has the pattern go dry.

Beyond Tuesday, the GFS, of course, has one more system with a couple of feet, but until the ECM is on board with that outcome I would not count on a mid-week system next week.

Right on day 10 the pattern change takes place with a ridge of high pressure starting to take over the weather for the next 7-10 days. That ridge will allow the Ski Area and Town to catch up from the 21-day mid-latitude storm cycle.

This pattern looks to last up until around the 20th of January when a ridge will move into the area for the first big break in the action. At that time the mid latitude jet look like it will come to an end. That would complete the classic 21-day wet cycles we have seen over the years here in Mammoth. 

EPS Weeklies Precipitation Anomaly out 31 Days

EPS Weeklies Precipitation out 31 Days

EPS Weeklies Temperature Anomaly out 31 Days

1-7-2022 – 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