Avalanche warning in Panhandle

Print Article

The U.S. Forest Service and National Weather Service issued avalanche warnings Friday for Bonner, Boundary and Shoshone counties. Areas in red mark where avalanche danger is rated as high, areas in dark grey are where the danger is unrated but those visiting the backcountry are advised to watch for signs of unstable snow and to avoid traveling on or under similar slopes. (Courtesy photo)

SANDPOINT — The U.S. Forest Service and National Weather Service issued avalanche warnings Friday for Bonner, Boundary and Shoshone counties.

The Forest Service’s Idaho Panhandle Avalanche Center said red flags began to fly amid snowfall and gusty winds in the Cabinet and Selkirk mountains ranges. Instability in the snowpack was also audible via whumphing, when the fracture of a lower snow layer causes an upper layer to collapse.

“With the continued precipitation and warming temperatures expect more weight and strain our persistent weak layers 2-3 feet down in the snowpack. Expect to see some natural avalanche activity and whumphing and cracking the next few days until things settle,” Eric Morgan said in a IPAC advisory.

The advisory urges against backcountry travel above treelines, where the slide risk is rated “high.” Avalanche risk near treelines is rated “considerable,” while slide risk in areas below treelines is rated “moderate.”

The slide problems are twofold.

Recent precipitation of 1-2 feet with winds and increasing temperatures have created storm slab formations on all upper elevations and exposed ridgetops. Shifty winds out of the southwest, west and northwest — in addition to Friday’s north wind — are helping to slab up areas and there is more snow expected today. Wind slabs and reverse loading are also concerns due to clocking winds, according to the center.

At 5,500 feet above sea level on a north aspect in the Selkirks, avalanche forecasters found 4 feet of snow with 2 feet of soft snow on surface hoar and faceted snow that sits on the Thanksgiving crust that is about a foot thick.

“Traveling in the mountains was challenging with a lot of trailbreaking and some downed timber off machine groomed trails.

The avalanche advisory, which remains in effect through midnight on Saturday, does not apply to local areas within the forecast region.

Info: www.fs.usda.gov/goto/ipnf/ac

Keith Kinnaird can be reached by email at kkinnaird@bonnercountydailybee.com and follow him on Twitter @KeithDailyBee.

Print Article

Read More Local News

Idaho to auction remaining lake lots

July 18, 2018 at 5:00 am | Bonner County Daily Bee The Idaho Department of Lands will be offering most of its remaining residential lake lots for auction in the next six years, along with some new unleased lots on Cougar Island and Pilgrim Cove at Pa...

Comments

Read More

Meeting planned on smelter proposal

July 18, 2018 at 5:00 am | Bonner County Daily Bee Citizens Against Newport Silicon Smelter and Responsible Growth*NE Washington will hold an informational meeting at the Priest River Library on Thursday, July 19 at 5:30pm. At the meeting, the propo...

Comments

Read More

PR run promotes suicide awareness

July 18, 2018 at 5:00 am | Bonner County Daily Bee PRIEST RIVER — Suicide continues to be the second leading cause of death for Idahoans between the ages of 15 and 34, according to the Suicide Prevention Action Network of Idaho.  Idaho is consistent...

Comments

Read More

Festival poster unveiling today

July 18, 2018 at 5:00 am | Bonner County Daily Bee DOVER — A much anticipated annual tradition takes place today from 5-7 p.m. at Dover Bay, when The Festival at Sandpoint unveils the original artwork for the fine art poster for its 2018 concert seri...

Comments

Read More

Contact Us

(208) 263-9534
PO Box 159
Sandpoint, ID 83864

©2018 Bonner County Daily Bee Terms of Use Privacy Policy
X