Grassy Lake Snow Report

Wyoming, USA 7,265 ft Station #499 ↗
⚠ Flood Watch · Flood Watch issued July 22 at 12:54PM MDT until July 23 at 6:00AM MDT by NWS Riverton WY
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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Right now · latest observation
Grassy Lake
SNOTEL station #499 · 7,265 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

Grassy Lake at a glance

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

Grassy Lake 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 Wyoming at an elevation of 7,265ft, where the air temperature is about 81°F right now.

Seasonal average snowpack on this calendar day is 1 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 Grassy Lake is expected to hold near today's 0.0 inches of snow-water equivalent, toward roughly 0.0 inches by 2026-07-27.

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

Grassy Lake on the map Open map →
StateWyoming
Station ID499
Elevation7,265 ft
Latitude44.1350°
Longitude-110.8250°
Seasonal avg1 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

Grassy Lake

Grassy Lake, WY is situated at an elevation of 6,660 feet in the Teton Mountain Range, and is characterized by its abundant snowfall. With an average annual snowfall of 170 inches, the region experiences a peak snowpack of around 120 inches during the winter season. This snowpack feeds into several downstream rivers, creeks and reservoirs that contribute to the region's hydrology. Nearby ski resorts such as Jackson Hole Mountain Resort and Grand Targhee Resort benefit greatly from this snowpack, as it provides them with a consistent source of high-quality snow for their guests to enjoy. Climate trends in the area have shown a slight decrease in snowfall over the years, but the region still maintains a healthy, thriving snowpack. Overall, the snowpack in Grassy Lake plays an essential role in both the region's recreation and hydrology sectors, making it a vital component of the local ecosystem.

1. Fishing: Grassy Lake is known for its excellent fishing opportunities, particularly for trout. Anglers can try their luck at catching rainbow, brown, and cutthroat trout in the lake's clear waters. There are also opportunities for fly fishing in nearby rivers and streams. 2. Hiking: The area surrounding Grassy Lake offers a variety of hiking trails, ranging from easy strolls to more challenging hikes. Popular trails include the Two Ocean Lake Loop, which offers stunning views of the surrounding mountains and meadows, and the Berry Creek Trail, which leads to a picturesque waterfall. 3. Wildlife viewing: Grassy Lake is located in the heart of the Greater Yellowstone Ecosystem, making it an ideal destination for wildlife enthusiasts. Visitors may spot a variety of animals, including elk, moose, bears, and bison. Birdwatchers can also enjoy spotting a variety of bird species in the area. 4. Camping: There are several campgrounds near Grassy Lake, offering a range of camping experiences from basic tent camping to RV sites with hookups. Camping in the area allows visitors to fully immerse themselves in the natural beauty of the surrounding landscape and enjoy star-gazing at night. 5. Boating: Grassy Lake is a popular spot for boating, with opportunities for kayaking, canoeing, and paddleboarding. The calm waters of the lake are ideal for exploring and taking in the scenic views of the surrounding mountains and forests. 6. Photography: The stunning landscapes around Grassy Lake provide endless opportunities for photography enthusiasts. From snow-capped mountains to crystal-clear lakes, the area offers a diverse range of subjects to capture in all seasons. Wildlife photography is also popular in the area, with opportunities to photograph a variety of animals in their natural habitat.

Regional snowpack

Nearby snowpack depths

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

Around the area

Recreation near Grassy Lake

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 Grassy Lake in the Snoflo app

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

FAQ

About Grassy Lake

Where does the snow data for Grassy Lake come from?

Snowpack depth, SWE, snowfall, and air temperature come from the NRCS SNOTEL station 499. 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.