
Powder Forecast – Tuesday January 13th, 2026
Powder Forecast – Tuesday January 13th, 2026 Ted Schlaepfer CCM —- Mammoth Mountain WeatherGuy Snowfall forecasts are valid at the Sesame snow course (Main Lodge)

Eastern Sierra Weather Synopsis: A very strong ridge of high pressure will be the story into the middle of next week.
The higher elevations will see very warm daytime temperatures with dangerously hot conditions below 7000 feet.
Temperatures look to be at or near record levels Friday into Monday.
An increase in moisture will bring a few isolated thunderstorms (20% chance) to parts of the higher elevations today into Sunday.
By next Wednesday highs look to come down about 4-6 degrees from the peak of this high-pressure ridge, however it will still be very warm to hot in all areas.
Lows at night will be warm until well past the midnight hour. If you’re coming up to the area make sure to bring a fan or two or you’re going to be too warm at night for a good sleep.
For those traveling to the area over the next week. Please know that in the Owens Valley there will be an extended period of heat expected.
Areas south of Bishop will be near 110 mid-day. Make sure your vehicle is ready for those conditions.
NWS ALERT BISHOP: EXCESSIVE HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH MONDAY EVENING…FOR THE ENTIRE OWENS VALLEY. TRAVELERS BE PREPARED.
Air quality remains good at this time – Fire Conditions Remain Extreme in the Area
Snowman
Mammoth Mountain Ski Patrol Current Conditions 7-9-2021

Cal Trans Window-cast
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Window-cast from the Mammoth Lakes Airport Webcam
Live Radar View of Central California
GOES Satellite View of California and the West Coast
Forecast for the Mammoth Lakes Basin & Main Lodge @ 8900 feet
Forecast for Mammoth Lakes @ 8000 Feet

Forecast for Bishop @ 4200 feet

HRRR High-Temperature Forecast for Today
HRRR 18 Hour Precipitation Forecast
HRRR Current Dew Point
HRRR Current Humidity Levels
ECMWF EPS 10 Day Precipitation Forecast

ECMWF EPS Ensemble going out 10 days / 240 hours
10 Day Temperature Forecast
Temperature Anomaly Outlook


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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.
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’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.”.
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