Sat, April 26, 2014 Turnagain Pass Avalanche Forecast

Sat, April 26th, 2014

Alpine
Above 2,500'

Moderate (2)

Treeline
1,000'-2,500'

Moderate (2)

Below Treeline
Below 1,000'

Moderate (2)

Alpine Above 2,500'		Moderate (2)
Treeline 1,000'-2,500'		Moderate (2)
Below Treeline Below 1,000'		Moderate (2)

Danger Scale:

No Rating (0)

Low (1)

Moderate (2)

Considerable (3)

High (4)

Extreme (5)

Avalanche Problem 1

Wind Slabs

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.

More info at Avalanche.org

Winds out of the East coupled with 8-10” of new snow in the higher elevations have created slabs that will be easy to trigger this morning. These slabs will range in depth from 10-14”. With more snow and wind in the forecast, expect these slabs to increase in depth and sensitivity. These slabs will be most sensitive as they are forming.

With winds blowing predominantly out of the East, it is safe to assume that West aspects will be wind loaded today. However, as wind interacts with terrain, it often changes direction. Because of this it is important to learn how to recognize wind loaded terrain features. Look for smooth, rounded and pillowy surfaces. Shooting cracks are commonly found on wind loaded features and are an obvious sign of unstable snow.

Avoiding wind loaded areas will be your best bet for managing this avalanche concern today.

Avalanche Problem 2

Wet Loose

Wet Loose

Wet Loose avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.

More info at Avalanche.org

Rain and above freezing temperatures have and will continue to create weak surface snow. In terrain over 40 degrees in the lower elevations be on the lookout for human triggered wet loose avalanches to move slowly. There is potential for these to gain enough mass to knock a person over and increase chances for injury. If you are sinking more than a few inches below the surface, it is time to back off of steep terrain.

Weather

Sat, April 26th, 2014

In the past 24 hours 8 € snow containing .8 € of water have fallen at the Center Ridge SNOTEL site. Rain/snow line has fluctuated between 500'-1,800'. Winds have been blowing steadily out of the East, with Sunburst averaging 25 mph (max gust 49 mph). Temperatures at ridge tops have been in the mid 20s F (Sunburst 24 hr avg=23.2 F)

Today expect more precipitation, with the bulk of it arriving later in the day. As much as 5 € of additional snow can be expected by sunset. Winds will continue to be in the moderate range, 25-35 mph out of the East. Rain/snow line should hover around 1,500-1,800'. Temperatures at 1,000' will reach into the low 40s F.

Unsettled weather will persist through the weekend. Moving into the early part of next week drier conditions should take over as the Low currently stalled over the area makes an exit.

Observations

Recent Observations for Turnagain Pass

Date	Region	Location	Observer
05/18/21	Turnagain	Observation: Tincan Ridge	Joe Kurtak
04/30/21	Turnagain	Observation: Sunburst	W Wagner Forecaster
04/27/21	Turnagain	Observation: Tincan Ridge	Joe Kurtak
04/26/21	Turnagain	Observation: Magnum	Creighton/ Hoople
04/25/21	Turnagain	Observation: Sunburst	Nick D'Alessio
04/24/21	Turnagain	Observation: Airplane obs	Johnston-Bloom / DiJulia /Hilliard Forecaster
04/24/21	Turnagain	Observation: Corn biscuit	Heather Johnson
04/23/21	Turnagain	Avalanche: Lynx Ck Drainage	W Wagner Forecaster
04/23/21	Turnagain	Avalanche: Sunburst	Eeva Latosuo
04/23/21	Turnagain	Observation: Center Ridge Turnagain pass	Joe Kurtak

Riding Areas

Updated Tue, June 01st, 2021

Status of riding areas across the Chugach NF is managed by the Glacier and Seward Ranger Districts, not avalanche center staff. Riding area information is posted as a public service to our users and updated based on snow depth and snow density to prevent resource damage at trailhead locations. Riding area questions contact: mailroom_r10_chugach@fs.fed.us

Area	Status	Weather & Riding Conditions
Glacier District
Johnson Pass	Closed
Placer River	Closed	It is packrafting and jetboat season!
Skookum Drainage	Closed	The Skookum Valley is closed to snowmachines. This closure occurs annually on April 1 as per the CNF Forest Plan.
Turnagain Pass	Closed	Closed as of June 1. 188 day season, that\'s a wrap!
Twentymile	Closed	It is packrafting and jetboat season!
Seward District
Carter Lake	Closed	Closes May 1.
Lost Lake Trail	Closed	Closes May 1.
Primrose Trail	Closed	Closes May 1.
Resurrection Pass Trail	Closed	Closed for the 2020/21 winter season. Will be open for moto use in the 21/22\\\' winter season as per the CNF Forest plan.
Snug Harbor	Closed	Closes May 16th.
South Fork Snow River Corridor	Closed	Closes May 1.
Summit Lake	Closed	Closes May 1.