Reactive in the Seymour Backcountry

Quick report

Weather

stormy, windy

Avalanche Conditions

avalancheConditionSlab, avalancheConditionSound, avalancheConditionTemp

Avalanche

Run Length

150

Slab Width

15

Trigger Type

skier

Avalanche Size

1.5

Slab Thickness

30

Start Zone Aspect

N, NE

Start Zone Incline

40

Avalanche Character

stormSlab, windSlab

Number Of Avalanches

6-10

Start Zone Elevation

1200

Avalanche Observation

12hrsAgo

Avalanche Occurrence Datetime

2025-02-15T23:00:00.000Z

Triggered several small Sz1-1.5 soft slab avalanches on steeper northerlies. Crowns ranged from 10-30cm deep and up to 15m wide. The largest ran ~150m in a steeper feature. The deepest crowns were in areas where sluff or spindrift had collected. While the slides were relatively small because there wasn't too much new snow, they were very easy to trigger and propagation was surprising. Also saw evidence of a recent natural Sz1 and Sz1.5 in steep NE terrain. These slides occurred at all elevations we travelled in avalanche terrain (the lowest was ~950m, the highest ~1250m). I expect that as temperatures rise and more new snow falls these will become larger and even easier to trigger.