CAIC

Details

Date: 2019/12/15

Observer: Glenn Douglass
Organization: Public

CAIC Comments

related to this report https://avalanche.state.co.us/caic/obs/obs_report.php?obs_id=57910

Location

BC Zone: Front Range
Area Description: Jones Pass Basin 39.779858° -105.882108°

Weather

Weather Description: Sunny, cold (10 degs +/-) after 3 days of heavy snow and wind.

Snowpack

Snowpack Description: Jones Pass, main bowl. Stormed 3 days previously with wind. New snowfall approx. 3 feet Fracture line about 6 to 7 feet tall due to wind loading at top of slope (leeward side) Aspect is southeast, elevation 11800 to 11500

Avalanches

Avalanche Description: 3 avalanches happened consecutively, the last two probably triggered by the first. Aspect is southeast, elevation 11800 to 11500

Date

Location/Path

Elev

Asp

Type

Trig

SizeR

SizeD

2019/12/15 ^†

Jones Pass

>TL

AM / r

2019/12/15 ^†

Jones Pass

>TL

AM / y

D2.5

Media

Images

<b>Figure 1:</b> Looking at the last slide which happened over a 1000 feet from the 2nd slide, triggered by the previous slide. Looking more westerly. (<a href=javascript:void(0); onClick=win=window.open('https://caic-production.imgix.net/p11bbejjt2d9pje6qvtn2wjmv18l?ixlib=php-3.1.0&s=0f387fd500c83c940935abf3d04a8521','caic_media','resizable=1,height=820,width=840,scrollbars=yes');win.focus();return false;>see full sized image</a>)

$<b>Figure 2:</b> another view showing fracture line (<a href=javascript:void(0); onClick=win=window.open('https://caic-production.imgix.net/vpyqkbg9l173pb5ot5m9t42kisax?ixlib=php-3.1.0&s=1c7e0a76c8ae46d570ff13461b465d35','caic_media','resizable=1,height=820,width=840,scrollbars=yes');win.focus();return false;>see full sized image</a>)$ <b>Figure 3:</b> Looking northwest uphill at larger slide. (<a href=javascript:void(0); onClick=win=window.open('https://caic-production.imgix.net/1rv7jcpddzulncb3upjc908utfod?ixlib=php-3.1.0&s=0ed81a79dab5a79c9caaaefe2f694e87','caic_media','resizable=1,height=820,width=840,scrollbars=yes');win.focus();return false;>see full sized image</a>)

<b>Figure 3:</b> Looking northwest uphill at larger slide. (<a href=javascript:void(0); onClick=win=window.open('https://caic-production.imgix.net/1rv7jcpddzulncb3upjc908utfod?ixlib=php-3.1.0&s=0ed81a79dab5a79c9caaaefe2f694e87','caic_media','resizable=1,height=820,width=840,scrollbars=yes');win.focus();return false;>see full sized image</a>)