Css Lab Snow Report

California, USA 6,855 ft Station #428 ↗
Stale data This station hasn’t reported in days (last reading unknown). The readings below may not reflect current conditions.
Today high
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Snowpack
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Right now · latest observation
Css Lab
SNOTEL station #428 · 6,855 ft
-- in snowpack
Latest reading from this station.
SWE
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Air temp
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% of normal
0%
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Conditions summary

Css Lab at a glance

How the snowpack at Css Lab looks right now, where the station sits on the map, and its key details.

Css Lab reports 0.0″ of new snowfall today, raising snowpack levels to 0 inches. Snowpack depth is 0% of normal, which is very low for this time of year. The mountain is perched in California at an elevation of 6,855ft, where the air temperature is about 76°F right now.

Seasonal average snowpack on this calendar day is 2 inches across the station's full record. Below-normal snowpack like this typically translates to a thinner spring runoff downstream and earlier snowmelt -- worth watching for downstream water-supply forecasts.

Over the next 5 days, the snowpack at Css Lab is expected to hold near today's 0.1 inches of snow-water equivalent, toward roughly 0.1 inches by 2026-07-25.

For real-time and historical context, see the realtime view or the historical comparison. Browse other stations in the California snow report.

Css Lab on the map Open map →
StateCalifornia
Station ID428
Elevation6,855 ft
Latitude39.3350°
Longitude-120.3650°
Seasonal avg2 in
StatusVery Low
Historical context

How does this compare to past years?

Year-over-year percentile bands, every recorded powder day, and the deepest snowpack on record each water year at this station.

Detailed forecast

Weather Forecast

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & snow

Daily temperatures, snow, and rain projected over the next two weeks.

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About this station

Css Lab

CSS Lab, CA is located in the Sierra Nevada mountain range at an elevation of approximately 7,500 feet. The area receives an average annual snowfall of over 300 inches, contributing to an average peak snowpack of around 80 inches. Nearby ski resorts, such as Mammoth Mountain and June Mountain, rely heavily on this snowpack for their winter operations. Climate trends in the region suggest that snowpack levels may be decreasing due to warming temperatures, posing potential risks to downstream hydrology constituents such as the Owens River, Mammoth Creek, and Crowley Lake Reservoir. These bodies of water are important for both recreational and agricultural purposes, highlighting the importance of monitoring and managing the snowpack in the area. Overall, the CSS Lab snowpack serves as a critical resource for both the local community and the broader region.

1. Hiking: There are several hiking trails near CSS Lab, CA that offer a range of difficulty levels and scenic views. Some popular trails include the Mount San Antonio (Mount Baldy) Trail, Bridge to Nowhere Trail, and Sturtevant Falls Trail. Hiking is a great way to enjoy the fresh air and nature while getting some exercise. 2. Biking: The area around CSS Lab, CA has numerous biking trails for both mountain bikers and road cyclists. Some popular biking trails include Marshall Canyon Trail, Claremont Hills Wilderness Park, and Glendora Mountain Road. Biking is a fun way to explore the outdoors and get some cardio in. 3. Rock Climbing: For those who enjoy a more adventurous activity, there are several rock climbing spots near CSS Lab, CA. Some popular climbing areas include Echo Cliffs, Malibu Creek State Park, and Stoney Point Park. Rock climbing offers a thrilling challenge and the opportunity to admire the beautiful views from the top. 4. Camping: If you're looking to spend a night under the stars, there are several campgrounds near CSS Lab, CA that offer a peaceful outdoor experience. Some popular campgrounds include San Bernardino National Forest, Chilao Campground, and Crystal Lake Campground. Camping allows you to disconnect from the hustle and bustle of daily life and enjoy the tranquility of nature. 5. Fishing: For those who enjoy fishing, there are several lakes and rivers near CSS Lab, CA that offer prime fishing spots. Some popular fishing locations include Big Bear Lake, Lake Gregory, and San Gabriel River. Fishing is a relaxing and rewarding way to spend time outdoors while trying to catch some fresh fish for a meal.

Regional snowpack

Nearby snowpack depths

Cross-check whether Css Lab's snowpack is a one-off accumulation or a regional storm cycle.

Around the area

Recreation near Css Lab

Ski areas, reservoirs, paddle runs, campgrounds, and fishing access within driving distance.

Mountain & avalanche safety

Know before you go
Check today's avalanche bulletin from the regional avalanche center before any backcountry / side-country travel. Conditions can shift dramatically between morning and afternoon on storm days.
Carry the gear, know how to use it
Beacon, shovel, probe. Practice companion rescue on a calm day, not during a real burial.
Mind the weather window
Heavy snow + wind builds wind slabs at ridgelines. The day after a storm is often the riskiest in the backcountry.
Read the snowpack
A weak, faceted, or wind-loaded snowpack — like the depth and trend shown above — is exactly what feeds slab avalanches. Dig a pit or check the bulletin before committing to steep terrain.

Track Css Lab in the Snoflo app

Save this station as a favorite, set push alerts when snowfall crosses a threshold (e.g. "alert me when Css Lab reports 6″ new"), and Snoflo's iOS app will push the moment the SNOTEL station crosses.

FAQ

About Css Lab

Where does the snow data for Css Lab come from?

Snowpack depth, SWE, snowfall, and air temperature come from the NRCS SNOTEL station 428. Forecast comes from the NOAA / yr.no feed Snoflo's iOS app uses.

How often is the report updated?

NRCS SNOTEL stations report continuously (typically hourly). Snoflo refreshes throughout the day; check the "as of" timestamp on the snowpack hero card.

What's the difference between snowpack depth and SWE?

Snowpack depth measures how tall the snow is. SWE (snow water equivalent) measures how much WATER is in that snow. SWE matters more for hydrology and ski-season prediction since dry powder packs less water than wet/spring snow at the same depth.

How is "% of normal" calculated?

Today's snowpack is compared to the historical average snowpack on this calendar day across the station's full record. 100% = right on average; 130% = a big year; 60% = a thin year.

Can I get alerts when fresh snow hits?

Yes -- snow alerts are managed in the Snoflo iOS app. Favorite this station, set a snowfall threshold (e.g. "alert me when 6+ inches"), and you'll get a push the moment NRCS reports the crossing.