Mammoth Mountain
Today's Forecast
↑40° ↓25°
forecast icon
  • Dewpoint↓7° / ↑4°
  • Humidity↑14% / ↓63%
  • Regional New Snow0"
  • Regional Snow Depth3"
Clear before noon and then clear later into the evening.
No snow today.
None expected.
Winds NE 8 to 17 mph through the morning becoming variable at 2 to 9 mph in the afternoon, evening with gusts up to 21 mph. Expected wind chill to be 4 to 33 degrees throughout the day.
Daily Freezing Level In Feet
Saturday the 21st
↑41° ↓40°
forecast icon
  • Dewpoint↓15° / ↑20°
  • Humidity↑14% / ↓70%
  • Regional New Snow0"
  • Regional Snow Depth1"
Clear through the morning, and then mostly clear with a few clouds becoming partly cloudy into the evening.
None expected.
None expected.
Winds variable at 3 to 10 mph through the morning shifting to variable at 3 to 10 mph in the afternoon, evening with gusts up to 13 mph. Expected wind chill to be 30 to 34 degrees throughout the day.
Daily Freezing Level In Feet
Sunday the 22nd
↑40° ↓34°
forecast icon
  • Dewpoint↓18° / ↑10°
  • Humidity↑19% / ↓66%
  • Regional New Snow0"
  • Regional Snow Depth0"
Partly cloudy through the morning, and then partly cloudy becoming mostly clear with a few clouds into the evening.
No snow throughout the day.
None expected.
Winds SW 9 to 20 mph through the morning shifting to SW 10 to 21 mph in the afternoon, evening with gusts up to 24 mph. Wind chill expected to be 19 to 32 degrees throughout the day.
Daily Freezing Level In Feet
Monday the 23rd
↑42° ↓35°
forecast icon
  • Dewpoint↓16° / ↑19°
  • Humidity↑12% / ↓67%
  • Regional New Snow0"
  • Regional Snow Depth0"
Partly cloudy becoming mostly clear with a few clouds through the morning, and then clear becoming partly cloudy into the evening.
None expected today.
No precipitation expected.
Winds S 5 to 14 mph through the morning shifting to variable at 3 to 10 mph in the afternoon, evening with gusts up to 18 mph. Expected wind chill to be 20 to 35 degrees throughout the day.
Daily Freezing Level In Feet
Tuesday the 24th
↑41° ↓39°
forecast icon
  • Dewpoint↓16° / ↑6°
  • Humidity↑12% / ↓55%
  • Regional New Snow0"
  • Regional Snow Depth0"
Mostly cloudy becoming cloudy through the morning, and then mostly cloudy through the afternoon and evening.
No snow.
None expected throughout the day.
Winds S 5 to 14 mph through the morning becoming SW 5 to 14 mph in the afternoon, evening with gusts up to 18 mph. Expected wind chill to be 30 to 35 degrees throughout the day.
Daily Freezing Level In Feet
Wednesday the 25th
↑43° ↓39°
forecast icon
  • Dewpoint↓19° / ↑9°
  • Humidity↑21% / ↓58%
  • Regional New Snow0"
  • Regional Snow Depth0"
Partly cloudy becoming clear through the morning, and then clear through the afternoon and evening.
None expected throughout the day.
None expected throughout the day.
Winds SE 4 to 13 mph through the morning shifting to 9 to 20 mph in the afternoon, evening with gusts up to 25 mph. Wind chill expected to be 31 to 35 degrees throughout the day.
Daily Freezing Level In Feet
  • Last Update19 Apr @ 07:04
  • Snow Last 24hrs0"
  • Snow Past 48 hrs1"
  • Season Total259"
  • Average Base Depth70 to 150"
  • Today's Snow Potential0"
Comments
10 - 11in, past 7 days. Snow surface is machine groomed and packed powder

  • High Lift Elevation11,053ft
  • Base Elevation7,953ft
  • Vertical Drop3,100ft
  • Longest Trail3.2 miles
  • Trails76 of 150
  • Lifts11 of 28
  • Acreage1095 of 3500 ( 51% )
Other Info
  • Groomed Night Ski Trails40 ( 27% )
  • Tubing Hours10a-5p
56°
Current Weather Icon
 
Conditions
  • Humidity14%
  • Dewpoint
  • SustainedNW 1mph
  • GustingNW 10mph
  • VisibilityUnreported
  • Snow DepthUnreported
Comments
Unreported
Location
CRESTVIEW, CA
  • Elevation9,088ft
  • UpdatedApr 20 @ 06:09
56°
Current Weather Icon
 
Conditions
  • Humidity14%
  • Dewpoint
  • SustainedNW 1mph
  • GustingNW 10mph
  • VisibilityUnreported
  • Snow DepthUnreported
Comments
Unreported
Location
CRESTVIEW, CA
  • Elevation7,799ft
  • UpdatedApr 20 @ 06:09
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 - Mammoth - April 04, 2018
Wednesday, April 4th, 2018

..NOW THROUGH THE WEEKEND...
Mild weather is expected through Thursday. A few light showers are possible today and Thursday, mainly well north of Interstate 80. A strong atmospheric river will impact northeast California and western Nevada Friday into Saturday, bringing periods of moderate to heavy rain, high elevation snow, gusty winds, and concerns for flooding along rivers and streams.

..MORE DETAIL...
(Translated from NWS but added in some detail and our own outlook)
A strong late season Atmospheric River (AR) will bring periods of heavy precipitation to the region Friday and Saturday. With a strong sub-tropical influence and the jet stream (cold air to the north of this) forecast to stay well north of the region during most of precipitation event. Precip will fall
primarily as rain, even in the higher elevations above 9,000 and 10,000 feet. The main concern continues to be flooding, both for small creeks and streams, and for main stem rivers. There is a flood watch in effect from late Friday afternoon through Saturday for the Sierra and the Sierra foothills.

It is late in the atmospheric river season and this AR is forecast to be solidly in the strong category, which is quite rare for this time of year. PWAT (moisture) and IVT (moisture + transport) anomalies are on the very high end of their respective scales for this time of year, and between Friday afternoon and Saturday morning, several inches of water or more will fall on thew west slopes of the Sierra Nevada.

Precipitation will begin to move into the Sierra and NE California by Thursday night with periods of light to moderate precipitation through Friday afternoon as warm advection precipitation begins to push into the Sierra. A 6-12 hour period of very heavy precipitation is expected Friday night into Saturday morning as the core of the low pressure nears the Pacific Northwest coast, bringing increased forcing to the moisture laden
environment over the Sierra. The very warm temperatures aloft will promote more efficient warm rain processes and will likely result in impressive rain rates Friday night (heavy rain and flooding likely).

Current forecast for QPF is up to around 3-4 inches along the Sierra crest with 1.5-2 inches along the immediate lee of the Sierra and 0.5-1.0 inch spilling into western Nevada. During the period of heaviest precipitation the jet stream and the cold core of the low is forecast to remain well north of the
Sierra. Very warm subtropical air is forecast to move into the area from the southwest with mid-level temperatures potentially rising to around +3C to +5C during the heaviest precipitation. This will likely push snow levels to 10,000+ to 11,000 feet later Friday through early Saturday. CM

NEXT WEEK...
Early through mid next week looks busy with storms, colder this time, with snow levels to resort bases... Moderate to heavy snow is expected Tuesday and again next Thursday (9th/ 11th), followed by some sunshine and warming. After the 15th/ 16th or so we see high pressure build in across the eastern Pacific and west US coast, with sunny skies and warming temperatures, quite spring-like. CM
Feel free to share this, but please cite credit to snowforecast.com. Thank you! CM

Snowforecast.com Copyright © 1998–2018. Unauthorized Use Prohibited.
US Extended Snowfall Outlook - Updated Feb 14, 2018
LONG RANGE OUTLOOK from snowforecast.com - Feb 15, 2018

Wednesday, Feb 14, 2018

LONGER RANGE: Saturday/ Sunday (17th-18th) through late next week we expect a busy pattern, with all areas of the west seeing frequent snow, some areas like Colorado should see snow every day it looks like, and with heavy snow for Colorado overall Sunday through next week, more moderate to maybe heavy for Utah and the northern Rocky Mountains (including the inland Northwest)/ Southwest Canada, and mostly light snow across Tahoe, but at least it will be snowing again. Winter is definitely coming back!

--> Late February and into March should be busy for the western US, with frequent storms for Tahoe and Utah, moving across Colorado also as the east Pacific ridge breaks down some (Feb 20th-22nd), allowing strong Pacific energy and moisture to move into the western US and southwest Canada, with abundant snowfall for all areas including those parched in recent months like in California. This should have been the pattern across the western US already, if patterns were anything near "normal" so far in 2018... Do You want to see OTHER AREAS mentioned, email me and let me know... CM


Feel free to share this, but please cite credit to snowforecast.com. Thank you! CM

Snowforecast.com Copyright © 1998–2018. Unauthorized Use Prohibited.

Mountain Summit Forecast

Friday
↑41° / ↓26°
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AM

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↑35° / ↓26°
Skys
Clear through the morning.
Snow
None expected through the morning.
Precipitation
No precipitation expected through the morning.
Winds
Morning winds near the top NE 8 to 17 mph with gusts up to 21 mph. Expected wind chill to be 6 to 23 degrees through the morning.

PM

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↑41° / ↓35°
Skys
Clear into the evening.
Snow
No snow.
Precipitation
None expected.
Winds
Afternoon winds near the top variable at 2 to 9 mph. Wind chill expected to be 23 to 34 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph
Saturday
↑42° / ↓41°
icon 0"
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AM

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↑42° / ↓41°
Skys
Clear before noon.
Snow
None expected through the morning.
Precipitation
No precipitation expected.
Winds
Morning winds near the top variable at 3 to 10 mph. Expected wind chill to be 33 to 35 degrees through the morning.

PM

icon
↑42° / ↓41°
Skys
Mostly clear with a few clouds becoming partly cloudy through the afternoon and evening.
Snow
None expected through the afternoon and evening.
Precipitation
No precipitation expected through the afternoon and evening.
Winds
Afternoon winds near the top variable at 3 to 10 mph. Wind chill expected to be 32 to 35 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph
Sunday
↑41° / ↓35°
icon 0"
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AM

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↑41° / ↓40°
Skys
Partly cloudy through the morning.
Snow
None expected in the morning hours.
Precipitation
None expected in the morning hours.
Winds
Morning winds near the top SW 9 to 20 mph with gusts up to 25 mph. Expected wind chill to be 27 to 33 degrees through the morning.

PM

icon
↑40° / ↓35°
Skys
Partly cloudy becoming mostly clear with a few clouds into the evening.
Snow
No snow.
Precipitation
No precipitation expected.
Winds
Afternoon winds near the top SW 10 to 21 mph with gusts up to 26 mph. Expected wind chill to be 20 to 27 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph
Monday
↑43° / ↓36°
icon 0"
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AM

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↑42° / ↓36°
Skys
Partly cloudy becoming mostly clear with a few clouds before noon.
Snow
No snow.
Precipitation
None expected.
Winds
Morning winds near the top S 5 to 14 mph with gusts up to 18 mph. Wind chill expected to be 21 to 32 degrees through the morning.

PM

icon
↑43° / ↓42°
Skys
Clear becoming partly cloudy through the afternoon and evening.
Snow
No snow through the afternoon and evening.
Precipitation
No precipitation expected.
Winds
Afternoon winds near the top variable at 3 to 10 mph. Expected wind chill to be 32 to 36 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph
Tuesday
↑43° / ↓40°
icon 0"
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AM

icon
↑42° / ↓40°
Skys
Mostly cloudy becoming overcast through the morning.
Snow
No snow.
Precipitation
None expected through the morning.
Winds
Morning winds near the top S 5 to 14 mph with gusts up to 18 mph. Expected wind chill to be 31 to 36 degrees through the morning.

PM

icon
↑43° / ↓42°
Skys
Mostly cloudy through the afternoon and evening.
Snow
None expected through the afternoon and evening.
Precipitation
No precipitation expected through the afternoon and evening.
Winds
Afternoon winds near the top SW 5 to 14 mph. Wind chill expected to be 32 to 34 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph
Wednesday
↑44° / ↓40°
icon 0"
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AM

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↑44° / ↓40°
Skys
Partly cloudy becoming clear through the morning.
Snow
None expected in the morning hours.
Precipitation
None expected.
Winds
Morning winds near the top SE 4 to 13 mph. Expected wind chill to be 33 to 36 degrees through the morning.

PM

icon
↑44° / ↓44°
Skys
Clear through the afternoon and evening.
Snow
None expected.
Precipitation
No precipitation expected through the afternoon and evening.
Winds
Afternoon winds near the top 9 to 20 mph. Wind chill expected to be 35 to 36 degrees into the evening.
Hourly Temperatures at 9,519ft
temperature graph

Mountain Base Forecast

Friday
↑47° / ↓28°
icon 0"
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AM

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↑40° / ↓28°
Skys
Clear through the morning.
Snow
None expected in the morning hours.
Precipitation
None expected.
Winds
Morning winds around the base NE 8 to 17 mph with gusts up to 21 mph. Wind chill expected to be 8 to 28 degrees through the morning.

PM

icon
↑47° / ↓40°
Skys
Clear into the evening.
Snow
None expected.
Precipitation
None expected.
Winds
Afternoon winds around the base variable at 2 to 9 mph. Wind chill expected to be 28 to 39 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph
Saturday
↑53° / ↓40°
icon 0"
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AM

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↑49° / ↓40°
Skys
Clear through the morning.
Snow
No snow in the morning hours.
Precipitation
No precipitation expected in the morning hours.
Winds
Morning winds around the base variable at 3 to 10 mph. Expected wind chill to be 32 to 42 degrees through the morning.

PM

icon
↑53° / ↓46°
Skys
Mostly clear with a few clouds becoming partly cloudy into the evening.
Snow
No snow.
Precipitation
No precipitation expected.
Winds
Afternoon winds around the base variable at 3 to 10 mph. Expected wind chill to be 38 to 48 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph
Sunday
↑53° / ↓40°
icon 0"
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AM

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↑52° / ↓43°
Skys
Partly cloudy before noon.
Snow
None expected in the morning hours.
Precipitation
No precipitation expected.
Winds
Morning winds around the base SW 9 to 20 mph with gusts up to 25 mph. Wind chill expected to be 34 to 42 degrees through the morning.

PM

icon
↑53° / ↓40°
Skys
Partly cloudy becoming mostly clear with a few clouds through the afternoon and evening.
Snow
None expected through the afternoon and evening.
Precipitation
No precipitation expected.
Winds
Afternoon winds around the base SW 10 to 21 mph with gusts up to 26 mph. Expected wind chill to be 27 to 43 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph
Monday
↑56° / ↓39°
icon 0"
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AM

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↑53° / ↓39°
Skys
Partly cloudy becoming mostly clear with a few clouds through the morning.
Snow
No snow.
Precipitation
No precipitation expected in the morning hours.
Winds
Morning winds around the base S 5 to 14 mph with gusts up to 18 mph. Expected wind chill to be 26 to 46 degrees through the morning.

PM

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↑56° / ↓48°
Skys
Clear becoming partly cloudy through the afternoon and evening.
Snow
No snow through the afternoon and evening.
Precipitation
No precipitation expected.
Winds
Afternoon winds around the base variable at 3 to 10 mph. Expected wind chill to be 41 to 49 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph
Tuesday
↑56° / ↓45°
icon 0"
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AM

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↑52° / ↓45°
Skys
Mostly cloudy becoming cloudy through the morning.
Snow
No snow in the morning hours.
Precipitation
No precipitation expected.
Winds
Morning winds around the base S 5 to 14 mph with gusts up to 18 mph. Wind chill expected to be 37 to 45 degrees through the morning.

PM

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↑56° / ↓47°
Skys
Mostly cloudy through the afternoon and evening.
Snow
No snow through the afternoon and evening.
Precipitation
None expected.
Winds
Afternoon winds around the base SW 5 to 14 mph. Wind chill expected to be 39 to 49 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph
Wednesday
↑58° / ↓45°
icon 0"
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AM

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↑56° / ↓45°
Skys
Partly cloudy becoming clear before noon.
Snow
No snow.
Precipitation
None expected through the morning.
Winds
Morning winds around the base SE 4 to 13 mph. Expected wind chill to be 38 to 51 degrees through the morning.

PM

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↑58° / ↓49°
Skys
Clear into the evening.
Snow
None expected.
Precipitation
No precipitation expected.
Winds
Afternoon winds around the base 9 to 20 mph. Expected wind chill to be 42 to 52 degrees into the evening.
Hourly Temperatures at 8,166ft
temperature graph

Snow Maker's Corner

Regional Soil Temperatures
  • Soil High Temperature36°
  • Soil Low Temperature31°
Summit Wet Bulb Temperatures (F)
chart
Base Wet Bulb Temperatures (F)
chart
Regional Soil Temperatures
  • Soil High Temperature41°
  • Soil Low Temperature34°
Summit Wet Bulb Temperatures (F)
chart
Base Wet Bulb Temperatures (F)
chart
Regional Soil Temperatures
  • Soil High Temperature49°
  • Soil Low Temperature37°
Summit Wet Bulb Temperatures (F)
chart
Base Wet Bulb Temperatures (F)
chart
Regional Soil Temperatures
  • Soil High Temperature53°
  • Soil Low Temperature40°
Summit Wet Bulb Temperatures (F)
chart
Base Wet Bulb Temperatures (F)
chart
Regional Soil Temperatures
  • Soil High Temperature55°
  • Soil Low Temperature42°
Summit Wet Bulb Temperatures (F)
chart
Base Wet Bulb Temperatures (F)
chart