The last avalanche forecast for the 2023-2024 season posted on April 21st. Thank you to all who contributed to the avalanche center this season through observations, volunteer time, and/or financial contributions.

Snowmobile observation from Lola

Location Name: East of meat house meadows Region: Little Truckee Summit Areas Observation Date & Time: Saturday, February 13, 2021 - 12:00
Location: 39.448959, -120.339494 See map: CalTopo	Is this an Avalanche Observation?: Yes Conditions Alerts: Avalanche Activity Other Signs of Instability (cracking, whumpfing, collapsing) Other Signs of Instability (cracking, whumpfing, collapsing)›Shooting Cracks Recent Loading Recent Loading›More Than a Foot of New Snow Terrain Alerts: Slopes Steeper than 30 degrees Trigger Points Terrain Traps Terrain Matches the Advisory

Observation made by: Public

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Observation

Description of Snow, Weather, and Avalanche Conditions:

Test slope/play we were able to trigger a small slide from recent wind loading of new storm snow. Also caused shooting cracks.

Slope was steeper than 30 degrees, in a place we expected to see activity, matched advisory and an unsupported slope into a creek.

2 plus feet of new storm snow with lots of wind carried fill. Sun cracked throughout day.

Terrain Details

Terrain: elevations:

Near Treeline

Avalanche Details

Avalanche Type:

Wind Slab

Failure Plane/Weak Layer:

Storm Snow

Trigger

Trigger:

Snowmobiler

Trigger Modifier:

Intentionally Triggered

Terrain

Start Zone Slope Angle:

35degrees

Aspect:

East

Size

Destructive Size:

D1 Relatively harmless to people.

Relative Size:

R1 Very Small

Crown Height:

Less than 1 ft

Avalanche Width (Average width):

6ft.

Avalanche Length (Vertical Run):

6ft.

Weather Details

Elevation of Observation:

8000 - 9000 ft.

Blowing Snow:

Light

Wind Direction:

Northeast

Wind Speed:

Light

Sky Cover:

Broken - Mostly Cloudy - more than 4/8 and less than 8/8

Highest Precipitation Rate:

Very Light Snowfall (S-1 = up to .5cm /~.25 in per hour)

Precipitation:

Snow

Air temperature:

Below Freezing

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Snowmobile observation from Lola

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Snowmobile observation from Lola

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