Field Report

Front Range - CO

2025/04/29
Lat: 40.309, Lon: -105.669
Backcountry Area: Front Range
Author: Ian Fowler
Organization: Forecaster, CAIC

Report Information

Observation Summary

There was about 20cm of new snow and 30cm in drifts. This snow was well bonded to the surface below. Most southerly terrain had shed snow already.

Route Description

Up the Tyndall Gorge towards Tyndall Glacier.

Avalanches

Triggered avalanche
i
Expand to see more details
Date # Elev Asp Type Trig SizeR SizeD Problem Type Location
04/28/2025
1 >TL E WL N R1 D1.5 Loose Wet
04/28/2025
1 >TL E WL N R1 D1 Loose Wet
04/28/2025
1 >TL S SS N R1 D1 Wind Slab
04/29/2025
1 >TL NE WL N R1 D1.5 Loose Wet
04/29/2025
1 >TL NE WL AS/c R1 D1 Loose Wet

Snowpack

Below treeline the snowpack is well cooked down and there was only a couple of centimeters of new snow. Stepping out of skis we did not sink in beneath the surface melting.
Near and above treeline snow depths varied by aspect. South and east had already settled out to about 5cm and on shady north aspects there was about 20cm with more in drifts. In multiple hand shear tests the snow was well bonded to the surface below but there was a layer of graupel that fell early in the storm and would give easier shears. On all aspects, the new snow was resting on a stout melt-freeze crust that was hard to probe through with a pole. Beneath this layer the snow was still cold rounds on northerly aspects. As we descended on a northeasterly aspect at around 11 am the snow was getting a little past hot pow and into heavy watch your knees snow. We saw multiple wet loose sluffs and were able to trigger one on a steep northeasterly roll.

Weather

Skies were clear and the winds were calm with light gusts. It was warm by 10am.

Observation Media Uploads