Mammoth Mountain
Today's Forecast
↑35° ↓15°
forecast icon
  • Dewpoint↓16° / ↑7°
  • Humidity↑38% / ↓95%
  • Regional New Snow10"
  • Regional Snow Depth43"
Mostly cloudy before noon and then mostly cloudy later into the evening. Chance of snow in the afternoon, snow in the evening.
Snowfall forecasted to be a trace in the early morning followed by another 3 to 5 inches before noon and 5 to 8 inches in the afternoon followed by another dusting later into the evening.
Potential Precip: 0.21 to 1.05 inches
Winds SW 29 to 41 mph through the morning becoming W 22 to 34 mph in the afternoon, evening with gusts up to 57 mph. Expected wind chill to be -10 to 15 degrees throughout the day.
Daily Freezing Level In Feet
Monday the 21st
↑21° ↓10°
forecast icon
  • Dewpoint↓6° / ↑-3°
  • Humidity↑34% / ↓92%
  • Regional New Snow0"
  • Regional Snow Depth44"
Cloudy becoming mostly cloudy through the morning, and then mostly clear with a few clouds becoming clear into the evening. Chance of snow after daylight.
Snowfall expected to be a dusting in the early morning.
Potential Precip: trace amount
Winds NW 9 to 20 mph through the morning becoming E 12 to 23 mph in the afternoon, evening with gusts up to 42 mph. Expected wind chill to be -16 to -4 degrees throughout the day.
Daily Freezing Level In Feet
Tuesday the 22nd
↑32° ↓14°
forecast icon
  • Dewpoint↓5° / ↑-4°
  • Humidity↑14% / ↓60%
  • Regional New Snow0"
  • Regional Snow Depth41"
Clear through the morning, and then partly cloudy through the afternoon and evening.
No snow.
No precipitation expected.
Winds N 8 to 19 mph through the morning shifting to S 7 to 16 mph in the afternoon, evening with gusts up to 24 mph. Expected wind chill to be -9 to 14 degrees throughout the day.
Daily Freezing Level In Feet
Wednesday the 23rd
↑37° ↓23°
forecast icon
  • Dewpoint↓13° / ↑9°
  • Humidity↑32% / ↓60%
  • Regional New Snow0"
  • Regional Snow Depth32"
Partly cloudy through the morning, and then partly cloudy becoming mostly clear with a few clouds into the evening.
No snow throughout the day.
No precipitation expected throughout the day.
Winds S 7 to 16 mph through the morning becoming 9 to 20 mph in the afternoon, evening with gusts up to 37 mph. Expected wind chill to be 13 to 21 degrees throughout the day.
Daily Freezing Level In Feet
Thursday the 24th
↑37° ↓26°
forecast icon
  • Dewpoint↓8° / ↑10°
  • Humidity↑35% / ↓54%
  • Regional New Snow0"
  • Regional Snow Depth25"
Partly cloudy throughout the day.
None expected throughout the day.
No precipitation expected throughout the day.
Winds variable at 2 to 9 mph through the morning becoming variable at 3 to 10 mph in the afternoon, evening with gusts up to 11 mph. Wind chill expected to be 20 to 30 degrees throughout the day.
Daily Freezing Level In Feet
Friday the 25th
↑37° ↓29°
forecast icon
  • Dewpoint↓11° / ↑9°
  • Humidity↑33% / ↓46%
  • Regional New Snow0"
  • Regional Snow Depth9"
Mostly cloudy through the morning, and then partly cloudy through the afternoon and evening.
None expected throughout the day.
No precipitation expected.
Winds variable at 3 to 10 mph through the morning shifting to W 4 to 13 mph in the afternoon, evening with gusts up to 16 mph. Wind chill expected to be 24 to 26 degrees throughout the day.
Daily Freezing Level In Feet
  • Last Update20 Jan @ 05:01
  • Snow Last 24hrs0"
  • Snow Past 48 hrs0"
  • Season Total166"
  • Average Base Depth87 to 120"
  • Today's Snow Potential10"
Comments
42 - 62in, past 6 days. Snow surface is packed powder and machine groomed

  • High Lift Elevation11053
  • Base Elevation7953
  • Vertical Drop3,100ft
  • Longest TrailUnknown
  • Trails152 of 154
  • Lifts24 of 25
  • Acreage3200 of 3500 ( 99% )
Other Info
  • Groomed Night Ski Trails73 ( 47% )
  • Trails with Snow Making5 ( 3% )
  • Cross Country Area18
  • Tubingyes
  • Tubing Hours10a-5p
42°
Current Weather Icon
 
Conditions
  • Humidity53%
  • Dewpoint26°
  • SustainedSW 5mph
  • GustingSW 14mph
  • VisibilityUnreported
  • Snow DepthUnreported
Comments
Unreported
Location
CRESTVIEW, CA
  • Elevation9,088ft
  • UpdatedJan 20 @ 11:08
42°
Current Weather Icon
 
Conditions
  • Humidity53%
  • Dewpoint26°
  • SustainedSW 5mph
  • GustingSW 14mph
  • VisibilityUnreported
  • Snow DepthUnreported
Comments
Unreported
Location
CRESTVIEW, CA
  • Elevation9,088ft
  • UpdatedJan 20 @ 11:08
Top
Base
Super pipe
Super pipe
McCoy-Chair 23-top
McCoy-Chair 23-top
Contact
Location
  • City: Mammoth
  • State: California
  • Country: United States
All Maps
{STATION_DATA_VAR}
TAHOE FORECAST DISCUSSION - JAN 17, 2019
VERIFICATION: From the 11th of January: "Next Tuesday through Thursday (15th-17th Jan)... HEAVY SNOW, multiple feet per day even, moves into Tahoe and Mammoth, thanks to deep moisture and strong dynamics, plus an always favored southwest flow of winds across the mountains. The last storm, late Wednesday through Thursday, looks the strongest and looks like it will move in across the area, for full forcing to deliver max snowfall. Show up next Friday for the most fresh + sunshine possibilities as clearing is expected..." CM

VERIFICATION -LONGER RANGE From weeks ago... "this unsettled period should last into around the 18th-20th of January..."

LONGER RANGE FORECAST Updated Thursday Jan 17, 2019: After the predicted FEET of snow... This coming Sunday afternoon through overnight (20 Jan) a fast moving storm hits Tahoe, mainly northern Tahoe, with a quick 6 to 10 inches of snow (1 foot for favored northern areas like Boreal), after some heavy snow today (Thursday)... then (no change in this forecast for weeks now-->) For the last part of Jan and early February (through the 8th of Feb maybe), we start off with a snow down time under high pressure ridging (Eastern Pacific ridge). Storms begin to move in again after, frequently for frequent snow. CM

Patreon: https://www.patreon.com/snowforecast

TahoePic for site

NOTES: When paying full attention to the Tahoe area, which I have been watching weather patterns for since the 1970's, no one is more accurate in their forecasts of weather events/ timing/ snow totals, including in the long range. We gained quite a reputation for our Tahoe forecasts over a span of almost 15 years, gaining the attention of TV stations who used the forecasts with no mention of source, a movie financier who wanted me to be a part of a "think tank" group of professionals, radio stations, etc. Even major growers/ ag interests were using these free forecasts (for the longer range accuracy of weather event timing and significance), as an accurate long range forecaster is the equivalent of a "fortune teller", as told to me by the movie financier. There are competitors who charge for their info, and we do not, even though our information is a paid service in other formats we continue to deliver to agriculture customers to this day (Circa 1995). As I stated, I put my forecasts up against anyone else's in the area.

I never charged the site user for my services. The skier/ snowboarder has enough to pay for with fuel, lift tickets and passes, gear, life, etc., and I feel it is a service that should be provided by the host, the resort, to its visitors, even if in the form of advertising on the site. I have the same awesome, nice traffic as the rest of the snow sports niche sites, but am not going to run Google ads so they can charge $20/ cpm and give us less than a dollar cpm (literally their crumbs, and what are they creating on a daily basis? weather forecasts? So, no thanks).

That said... I watch Colorado as that is where the business is for me. Recently, Bogus Basin joined the client list and now we work up a complete custom forecast for them as well, with a long range outlook. I will be drawing from that already completed work to deliver you some short, but mostly longer range outlooks for Tahoe, for now. I hope it is useful for you. CM

 
LONG RANGE FORECAST - JAN 05, 2019
It has been a while since we updated this outlook. When paying full attention to any area we forecast for, which I have been watching weather patterns for (the western US also) since the 1970's, I put my forecasts of weather events/ timing/ snow totals up against any, especially in the long range. We gained quite a reputation for our Tahoe and Utah forecasts over a span of almost 15 years, gaining the attention of TV stations who used the forecasts with no mention of source, a movie financier who wanted me to be a part of a "think tank" group of professionals, radio stations, etc. Even major growers/ ag interests were using these free forecasts (for the longer range accuracy of weather event timing and significance), as an accurate long range forecaster is the equivalent of a "fortune teller", as told to me by the movie financier. There are competitors who charge for their info, and we do not, even though our information is a paid service in other formats we continue to deliver to agriculture customers to this day (Circa 1995). As I stated, I put my forecasts up against anyone else's in the area.

We gave out over $50,000 in SWAG (lodging, tickets, passes, gear, even Nativa Naturals food) from 2009-2011, stuff we couldn't even afford to buy ourselves, to many people from SFO and SAC, TVL area. If you check my bio you will see my story, there is a LOT more to it than what I am typing here.

I have received many emails due to the missing updates. The answer is, we have not had any support from advertisers, resorts, anyone in this region since around 2013. I continued on with the forecasting hoping for some support in the form of advertising or sponsorship, but it didn't happen, and I do not know anyone else who works for free.

That said, I would like to get these forecast outlooks going again-->

I never charged the site user for this service. The skier/ snowboarder has enough to pay for with fuel, lift tickets and passes, gear, life, etc., and I feel it is a service that should be provided by the host, the resort, to its visitors, even if in the form of advertising on the site. I have the same awesome, nice traffic as the rest of the snow sports niche sites, but am not going to run Google ads so they can charge $20/ cpm and give us less than a dollar cpm.

That said... I watch Colorado as that is where the business is for me. Recently, Bogus Basin joined the client list and now we work up a complete custom forecast for them as well, with a long range outlook. I will be drawing from that already completed work to deliver you a broad-brush longer range outlook for the western US, for now. I hope it is useful for you:

LONGER RANGE: The 9th-10th of January another low pressure system moves in with good potential snowfall, significant snow for the west coast mainly, less as we move inland, southern areas favored like southwest US areas,The 11-12th (roughly) and then the 13th-20th of January, we expect unsettled conditions to continue dominating the western US (had this forecast for over a month, early Dec forecast for this mid-late Jan time frame), and we expect a prominent moisture tap from the tropics, as El Nino starts to show itself more... So basically, between the 9th and 20th, we expect many more storms to move through with snow for most western US resort areas, down south to including Southern California and even favoring the southwest US as a more southerly track seems more likely... This unsettled period should last into around the 18th-20th of January, then in the last part of Jan and early February (through the 8th of Feb maybe), we start off with a snow down time under more dominant high pressure ridging. More to come. CM

Mountain Summit Forecast

Sunday
↑35° / ↓15°
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AM

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↑35° / ↓24°
Skys
Mostly cloudy before noon.
Snow
Snowfall forecasted to be a dusting in the early morning, then another 3 to 5 inches before noon.
Precipitation
Potential Precip: trace amount
Winds
Morning winds near the top SW 29 to 41 mph with gusts up to 57 mph. Expected wind chill to be 0 to 13 degrees through the morning.

PM

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↑26° / ↓16°
Skys
Mostly cloudy through the afternoon and evening. Expect periods of snow through the afternoon and evening.
Snow
Snowfall expected to be 5 to 8 inches in the afternoon, then another dusting in the evening.
Precipitation
Potential Precip: 0.21 to 1.05 inches
Winds
Afternoon winds near the top W 22 to 34 mph with gusts up to 37 mph. Wind chill expected to be -11 to 2 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph
Monday
↑24° / ↓10°
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AM

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↑21° / ↓13°
Skys
Cloudy becoming mostly cloudy through the morning. Chance of snow after daylight.
Snow
Snowfall forecasted to be a trace amount in the early morning.
Precipitation
Potential Precip: trace amount
Winds
Morning winds near the top NW 9 to 20 mph with gusts up to 25 mph. Wind chill expected to be -19 to -5 degrees through the morning.

PM

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↑20° / ↓12°
Skys
Mostly clear with a few clouds becoming clear through the afternoon and evening.
Snow
No snow through the afternoon and evening.
Precipitation
Potential Precip: trace amount
Winds
Afternoon winds near the top E 12 to 23 mph with gusts up to 42 mph. Wind chill expected to be -7 to 0 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph
Tuesday
↑35° / ↓20°
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AM

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↑33° / ↓22°
Skys
Clear before noon.
Snow
None expected in the morning hours.
Precipitation
None expected through the morning.
Winds
Morning winds near the top N 8 to 19 mph with gusts up to 24 mph. Wind chill expected to be 4 to 16 degrees through the morning.

PM

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↑30° / ↓25°
Skys
Partly cloudy through the afternoon and evening.
Snow
No snow.
Precipitation
None expected.
Winds
Afternoon winds near the top S 7 to 16 mph with gusts up to 23 mph. Expected wind chill to be 16 to 21 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph
Wednesday
↑39° / ↓27°
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AM

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↑38° / ↓32°
Skys
Partly cloudy before noon.
Snow
No snow in the morning hours.
Precipitation
No precipitation expected in the morning hours.
Winds
Morning winds near the top S 7 to 16 mph with gusts up to 22 mph. Wind chill expected to be 20 to 24 degrees through the morning.

PM

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↑33° / ↓29°
Skys
Partly cloudy becoming mostly clear with a few clouds through the afternoon and evening.
Snow
No snow through the afternoon and evening.
Precipitation
None expected through the afternoon and evening.
Winds
Afternoon winds near the top 9 to 20 mph with gusts up to 37 mph. Expected wind chill to be 22 to 25 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph
Thursday
↑38° / ↓28°
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AM

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↑38° / ↓32°
Skys
Partly cloudy through the morning.
Snow
None expected.
Precipitation
No precipitation expected through the morning.
Winds
Morning winds near the top variable at 2 to 9 mph. Expected wind chill to be 23 to 31 degrees through the morning.

PM

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↑33° / ↓29°
Skys
Partly cloudy through the afternoon and evening.
Snow
None expected through the afternoon and evening.
Precipitation
None expected.
Winds
Afternoon winds near the top variable at 3 to 10 mph. Expected wind chill to be 26 to 32 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph
Friday
↑37° / ↓29°
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AM

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↑37° / ↓33°
Skys
Mostly cloudy through the morning.
Snow
None expected.
Precipitation
None expected through the morning.
Winds
Morning winds near the top variable at 3 to 10 mph. Expected wind chill to be 24 to 26 degrees through the morning.

PM

icon
↑32° / ↓29°
Skys
Partly cloudy into the evening.
Snow
None expected through the afternoon and evening.
Precipitation
None expected through the afternoon and evening.
Winds
Afternoon winds near the top W 4 to 13 mph with gusts up to 16 mph. Wind chill expected to be 24 to 27 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph

Mountain Base Forecast

Sunday
↑35° / ↓19°
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AM

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↑35° / ↓26°
Skys
Mostly cloudy through the morning.
Snow
Snowfall forecasted to be a dusting in the early morning, then another 3 to 5 inches before noon.
Precipitation
Potential Precip: trace amount
Winds
Morning winds around the base SW 29 to 41 mph with gusts up to 57 mph. Wind chill expected to be 6 to 14 degrees through the morning.

PM

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↑31° / ↓19°
Skys
Mostly cloudy through the afternoon and evening. Expect periods of snow through the afternoon and evening.
Snow
Snowfall expected to be 5 to 8 inches in the afternoon, then another trace in the evening.
Precipitation
Potential Precip: 0.21 to 1.05 inches
Winds
Afternoon winds around the base W 22 to 34 mph with gusts up to 37 mph. Expected wind chill to be -1 to 13 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph
Monday
↑26° / ↓11°
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AM

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↑26° / ↓16°
Skys
Overcast becoming mostly cloudy before noon. Chance of snow after daylight.
Snow
Snowfall expected to be a trace in the early morning.
Precipitation
Potential Precip: trace amount
Winds
Morning winds around the base NW 9 to 20 mph with gusts up to 25 mph. Expected wind chill to be -7 to 6 degrees through the morning.

PM

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↑21° / ↓11°
Skys
Mostly clear with a few clouds becoming clear into the evening.
Snow
No snow through the afternoon and evening.
Precipitation
Potential Precip: trace amount
Winds
Afternoon winds around the base E 12 to 23 mph with gusts up to 42 mph. Expected wind chill to be -12 to 6 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph
Tuesday
↑33° / ↓14°
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AM

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↑31° / ↓16°
Skys
Clear before noon.
Snow
No snow in the morning hours.
Precipitation
No precipitation expected.
Winds
Morning winds around the base N 8 to 19 mph with gusts up to 24 mph. Expected wind chill to be -10 to 12 degrees through the morning.

PM

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↑27° / ↓23°
Skys
Partly cloudy through the afternoon and evening.
Snow
No snow.
Precipitation
No precipitation expected.
Winds
Afternoon winds around the base S 7 to 16 mph with gusts up to 23 mph. Wind chill expected to be 11 to 16 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph
Wednesday
↑39° / ↓24°
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AM

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↑37° / ↓29°
Skys
Partly cloudy before noon.
Snow
No snow in the morning hours.
Precipitation
No precipitation expected in the morning hours.
Winds
Morning winds around the base S 7 to 16 mph with gusts up to 22 mph. Wind chill expected to be 13 to 22 degrees through the morning.

PM

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↑33° / ↓28°
Skys
Partly cloudy becoming mostly clear with a few clouds into the evening.
Snow
None expected.
Precipitation
No precipitation expected through the afternoon and evening.
Winds
Afternoon winds around the base 9 to 20 mph with gusts up to 37 mph. Expected wind chill to be 22 to 25 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph
Thursday
↑38° / ↓26°
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AM

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↑38° / ↓31°
Skys
Partly cloudy through the morning.
Snow
No snow.
Precipitation
No precipitation expected.
Winds
Morning winds around the base variable at 2 to 9 mph. Wind chill expected to be 23 to 30 degrees through the morning.

PM

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↑32° / ↓28°
Skys
Partly cloudy into the evening.
Snow
None expected.
Precipitation
None expected through the afternoon and evening.
Winds
Afternoon winds around the base variable at 3 to 10 mph. Wind chill expected to be 25 to 32 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph
Friday
↑38° / ↓28°
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AM

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↑38° / ↓33°
Skys
Mostly cloudy through the morning.
Snow
None expected through the morning.
Precipitation
None expected in the morning hours.
Winds
Morning winds around the base variable at 3 to 10 mph. Expected wind chill to be 24 to 28 degrees through the morning.

PM

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↑32° / ↓29°
Skys
Partly cloudy through the afternoon and evening.
Snow
None expected.
Precipitation
No precipitation expected through the afternoon and evening.
Winds
Afternoon winds around the base W 4 to 13 mph with gusts up to 16 mph. Expected wind chill to be 23 to 26 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph

Snow Maker's Corner

Regional Soil Temperatures
  • Soil High Temperature29°
  • Soil Low Temperature23°
Summit Wet Bulb Temperatures (F)
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Base Wet Bulb Temperatures (F)
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Regional Soil Temperatures
  • Soil High Temperature27°
  • Soil Low Temperature19°
Summit Wet Bulb Temperatures (F)
chart
Base Wet Bulb Temperatures (F)
chart
Regional Soil Temperatures
  • Soil High Temperature24°
  • Soil Low Temperature13°
Summit Wet Bulb Temperatures (F)
chart
Base Wet Bulb Temperatures (F)
chart
Regional Soil Temperatures
  • Soil High Temperature26°
  • Soil Low Temperature15°
Summit Wet Bulb Temperatures (F)
chart
Base Wet Bulb Temperatures (F)
chart
Regional Soil Temperatures
  • Soil High Temperature28°
  • Soil Low Temperature20°
Summit Wet Bulb Temperatures (F)
chart
Base Wet Bulb Temperatures (F)
chart