Forecast for the Salt Lake Area Mountains

Drew Hardesty
Issued by Drew Hardesty for
Sunday, April 14, 2013

We have an overall MODERATE danger for new wind drifts in the high north through east through south facing terrain. Human triggered slides up to 8-12" deep are possible. Sun and heating on recent storm snow will also push the danger to MODERATE on the steep east through south through west facing slopes in particular and any slope that becomes wet and damp from heating in general.

Low
Moderate
Considerable
High
Extreme
Learn how to read the forecast here
Special Announcements

UDOT Avalanche forecaster Craig Patterson was tragically killed in an avalanche Thursday afternoon. Our preliminary accident report can be found here.

A memorial service to celebrate the life of Craig Patterson will take place Thursday, April 18th at 10am at the Albion Grill, Alta. Photos of Craig are welcome. In lieu of gifts or flowers, please contribute to the Craig Patterson Memorial Fund at any Key Bank. Or checks can be sent to the Craig Patterson Memorial Fund 520 Crestview Dr Park City, UT 84098.

(http://craigpattersonmemories.blogspot.com/) was created by a friend for folks to share their thoughts and memories. Something Craig's wife Renae and daughter can read.


My friend Tim wrote this from Glacier Bay years ago, though re-reading it now reminds me of our lost colleague Craig Patterson. Much of his heart was in Alaska, too.

“We camped on a gravel slope below White Thunder Ridge, and we might have gotten some sleep were it not for the damn Northern Lights, which arced across an ebony starfield like green smoke interspersed with dozens of red lightning bolts running in ultra-slow motion. All the while, the sound of calving ice rumbled off the ridge above. It was like having the whole damn philharmonic orchestra come over to play Beethoven for you at midnight. The mindless and ungrateful go to sleep so they can rise up in the morning fully rested and spiritually impoverished.”

We are all in this journey together; we’ve either lost someone or will lose someone down the road. It’s the lesson we share of impermanence and a reminder to be grateful for each day that we have with the ones we love. Lose some more sleep tonight, friends - remember that we live charmed lives; remember that always.


This will be our last scheduled daily avalanche advisory of the season. We'll issue intermittent advisories as conditions warrant through the spring. We'd like to thank everyone for their support this season. We couldn't do this without the support of our non-profit Friends of the Utah Avalanche Center with Paul Diegel as the Executive Director. We've had much support from our world class mountain resorts, UDOT, our many pro observers, and, of course, you - skiers and riders, snowshoers, and snowmobilers, all passionate about the Greatest Snow on Earth. Thanks.

Weather and Snow

Skies are partly to mostly cloudy in the wake of yesterday's cold front, though the clouds should thin out as the day wears on. Storm totals are 3-6" in the Cottonwoods and Park City mountains, with a trace to two in Provo and Ogden. The northwesterly winds remain moderate to strong with most anemometers blowing 20-25mph with gusts to 30. The most exposed ridgelines still suffer speeds in the 40-45mph range with gusts into the 50s and 60s. The wind speeds should lose some steam by the afternoon as well.

Recent Avalanches

No activity reported from the backcountry yesterday.

Ad
Avalanche Problem #1
Persistent Weak Layer
Type
Location
Likelihood
Size
Description

Shallow, pockety wind slabs will likely be sensitive this morning along the high lee ridgelines. They'll be most common on steep north through east through south facing slopes and reactive to ski and slope cuts.

Avalanche Problem #2
Wet Snow
Type
Location
Likelihood
Size
Description

Direct sun and warming temperatures will certainly dampen the dry snow from yesterday and make any steep sunlight slope prone to human triggered wet loose avalanches. These should also be manageable through careful terrain management and timing. Once the high April sun has been on the slope, the clock begins ticking and your window for safe travel before the wet loose potential narrows.

Note - most of the lower elevation sunny slope have melted out.

Additional Information

Brief clearing is in store today ahead of a large and languid cold Pacific storm that moves into the area late tonight through early Thursday. It looks like the bulk of the energy and precipitation will be slated for central and southern Utah, with the south slope of the Uintas standing to benefit as well. For today, temps along the ridgelines will be near 20; 8000' temps will reach near 30. The northwest winds should slowly start to wind down by midday.

General Announcements

If you trigger an avalanche in the backcountry - especially if you are adjacent to a ski area – please call the following teams to alert them to the slide and whether anyone is missing or not. Rescue teams can be exposed to significant hazard when responding to avalanches, and do not want to do so when unneeded. Thanks.

Salt Lake and Park City – Alta Central (801-742-2033), Canyons Resort Dispatch (435-615-3322)

Ogden – Snowbasin Patrol Dispatch (801-620-1017)

Powder Mountain Ski Patrol Dispatch (801-745-3772 ex 123)

Provo – Sundance Patrol Dispatch (801-223-4150)

Dawn Patrol Forecast Hotline, updated by 05:30: 888-999-4019 option 8.

Twitter Updates for your mobile phone - DETAILS

Daily observations are frequently posted by 10 pm each evening.

Subscribe to the daily avalanche advisory e-mail click HERE.

UDOT canyon closures UDOT at (801) 975-4838

Wasatch Powderbird Guides does daily updates about where they'll be operating on this blog http://powderbird.blogspot.com/ .

Remember your information can save lives. If you see anything we should know about, please participate in the creation of our own community avalanche advisory by submitting snow and avalanche conditions. You can also call us at 801-524-5304 or 800-662-4140, email by clicking HERE, or include #utavy in your tweet.

Donate to your favorite non-profit –The Friends of the Utah Avalanche Center. The UAC depends on contributions from users like you to support our work.

For a print version of this advisory click HERE.

This advisory is produced by the U.S. Forest Service, which is solely responsible for its content. It describes only general avalanche conditions and local variations always exist. Specific terrain and route finding decisions should always be based on skills learned in a field-based avalanche class.