Notice: Undefined index: HTTP_REFERER in /home/cnfaic/www/dev/site/wp-content/plugins/wp-cors/wp-cors.php on line 28

Notice: Undefined index: HTTP_ORIGIN in /home/cnfaic/www/dev/site/wp-content/plugins/wp-cors/wp-cors.php on line 29
CNFAIC
CNFAIC LogoCNFAIC Logo

Observations

Region: Turnagain, scottfennell
Location: God's Country (Front side of Seattle ridge, N of the up track)
Observer:
Date:

Route & General Observations

Motorized lot to Seattle ridge weather station. Kept riding North along the ridge and dropped in to God’s Country┬áto investigate a reported snowmachine triggered slab avalanche from yesterday.

Avalanche Details

Avalanche details

Trigger SnowmachinerAvalanche Type Aspect Southeast
Elevation 2300ftSlope Angle 33degCrown Depth 24in
Width 250ftLength 200ft  

Observer Comments

Snowmo triggerd yesterday. Soft slab with debris piling up 8-10' deep (as noted yesterday) on a small depression. Slope was 33 degress at the trigger point. Other adjacent slopes were steeper with a lot of snowmachine traffic and no avalanches.

Red Flags

Observer Comments

Relatively fresh glide crack noted lookers left of Widow Maker.

Weather

Weather

Calm winds. Clearing skies, no new precip. Temps were 14 degrees at 1,000' and 17 degrees at 2400'. Very pleasant day!

Snow Characteristics

Snow surface

6-10" of soft powder on top of a supportable slab at mid and upper elevations. 5-10 mm surface hoar formed overnight from 1,000' up.
18-24" of low density powder on top of supportable crust at 1,000'. It's DEEP just outside of the parking lot.

Snowpack

No formal stability tests today. Watched a lot of skiers and snowmachiners on the backside of Seattle ridge test steep terrain without incident. Main concern seemed to be loose snow sluffs were easy to initiate though only low to moderate in volume. Sluffs were fast moving as our surface is so unconsolidated right now.

Photos & Video

Photos



USFS SNOW AND AVALANCHE HOTLINE (907) 754-2369
If you have comments or questions regarding CNFAIC operations or winter recreation management, please email staff@chugachavalanche.org
© 2018 Chugach National Forest Avalanche Information Center. All rights reserved.
FCNFAIC
Donate
If you think a public avalanche
center is important then we urge
you to become a member & donate.


PickClickGive