Hatcher Pass

Forecast as of 04/17/2019 at 12:00 and expires on 04/18/2019

Above 3,500ft Considerable

2,500 to 3,500ft Considerable

Below 2,500ftModerate

Degrees of Avalanche Danger

Problem Details

Head's Up Hatcher Pass! Winter is not over yet....

Hatcher Pass received 24" of new snow overnight above 3000' and approx 12" of new snow at low elevation, combined with moderate wind gusts SSE 10-19 mph for several hours at upper elevation.

The avalanche problems for today are Storm Slab, Wind Slab, and Dry Loose.

The avalanche danger will be CONSIDERABLE today at mid and upper elevation, on all aspects, on slopes above 30º.  Prior to the storm, surface hoar, near surface facets, and crusts blanketed the landscape. New snow will likely not bond well to these pre-existing snow surfaces and contribute to the avalanche problem.  

Snow falling on a mix of ground and snow surfaces with less overall new snow will mean smaller avalanches are expected in the lower elevations with MODERATE danger for storm slabs and dry loose avalanches, on slopes 35º and steeper.  

 


 


 

 

 

 

 

 More about avalanche problems in the avalanche problem toolbox, HERE.

 


PREVIOUS ADVISORIES AND UPDATES HERE

 

Avalanche Activity

Due to a recent intense storm overnight 4/16-17 and moderate winds at upper elevation, natural avalanches most likely have occurred today. Poor visibility and storm conditions have made it challenging to confirm recent activity.

Human triggered small wind slabs were observed on leeward aspects at upper elevation Sat and Sun.

Dry loose naturals were observed on leeward aspects at upper elevation Sat and Sun.

 

For more info and pictures on the Natural and Human triggered avalanches this week , check out weekly OBSERVATIONS HERE.

 

Weather

 

NWS Rec Forecast HERE


NWS point forecast HERE


State Parks Snow Report and Motorized Access information HERE

Alerts

Read entire HPAC advisory HERE.

Announcements

April 17 - Head's Up Hatcher Pass! Winter is not over yet....

Hatcher Pass received 24" of new snow overnight above 3000' and approx 12" of new snow at low elevation, combined with moderate wind gusts SSE 10-19 mph for several hours at upper elevation.

The avalanche problems for today are Storm Slab, Wind Slab, and Dry Loose.

The avalanche danger will be CONSIDERABLE today at mid and upper elevation, on all aspects, on slopes above 30º.  Prior to the storm, surface hoar, near surface facets, and crusts blanketed the landscape. New snow will likely not bond well to these pre-existing snow surfaces and contribute to the avalanche problem.  

Snow falling on a mix of ground and snow surfaces with less overall new snow will mean smaller avalanches are expected in the lower elevations with MODERATE danger for storm slabs and dry loose avalanches, on slopes 35º and steeper.  

 


Announcements:

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