Urban Avalanche Advisory

Current Advisory as of

April 26, 2021

Expires 7:00 AM the following morning.

Issued By Tom Mattice

Danger Level: 2 - Moderate
View Danger Definitions

Today's Discussion

CBJ will be suspending the Urban Avalanche Advisory for the remainder of the season unless things dramatically change.  This forecast will no longer be updated daily.  If you need specific avalanche information feel free to Call Tom Mattice @ (907) 209-9207 any time you need.

If danger levels rise appreciably to Considerable or above special statements may be issued here.

Does that mean avalanches will not occur?  No.  Avalanche danger lingers and will increase anytime we see a great deal of rain or direct sunlight and warmth until the snows finally melt away later this summer.

We have lost a great deal of snow in the avalanche paths and runout areas.  This will greatly reduce the size of any avalanches that should occur in the urban paths for the remainder of the year.

Remember to play early in the days this time of year for more stable conditions on sunny days.  Remember Rains also act to destabilize the snowpack.  If you head into the hills to play be sure to use good avalanche decision making.

Wet Loose, Wet Slab, Cornice Falls, and Glide Avalanches are still possible until the snow finally melts away and yet reduced size allows for suspension of the Urban Forecast.

Primary Avalanche Problem

Loose Wet

Problem Type:Loose Wet
Avalanche Size:Large
Avalanche Likelihood = Possible
Avalanche Trend = Steady Danger


Diurnal fluctuations will drive loose wet avalanche activity on sunny days.

Slides continue in the heat of the day on sunny south facing slopes.

Any rains will also rise avalanche danger on All aspects regardless of time of day.

Learn more about Loose Wet.

Secondary Avalanche Problem


Problem Type:Glide
Avalanche Size:Large
Avalanche Likelihood = Possible
Avalanche Trend = Steady Danger


Look for glide cracks on any slope you choose to  play on or traverse below and recognize that hazard is increased in these areas until these slabs break and run.  Avoid areas below glide cracks and track them in your travel practices to continually avoid them.

Learn more about Glide.

Today’s Avalanche Tip

Please continue to share you snow and avalanche observations with the Coastal Alaska Avalanche Center!  We appreciate all the effort put in this season by the locals and the Center Staff.  Thank you for all you do to keep Juneau an avalanche safe community and our people coming home to their loved ones.

Here is a little more on Avalanche Safety and What to Look for in Spring Conditions.