Planned Website Outage: The UAC website will be down for maintenance on June 17 from 2:00 - 7:00 PM MT.

Observation: Red Pine Gulch

Observation Date
2/16/2017
Observer Name
mark white
Region
Salt Lake » Little Cottonwood Canyon » Red Pine
Location Name or Route
White Baldy
Weather
Sky
Scattered
Wind Direction
South
Wind Speed
Moderate
Weather Comments
Scattered clouds with quite a bit of sun in the AM high clouds in the PM, moderate to strong winds blowing from the S-SE up high and down at mid elevations, stayed fairly warm.
Snow Characteristics
Snow Surface Conditions
Dense Loose
Wind Crust
Melt-Freeze Crust
Snow Characteristics Comments

Dense loose snow on the N end of the compass at mid and upper elevations, wind crust in in exposed terrain, melt freeze crust on W,SW,S,SE, that never softened at the higher elevations due to wind and cloud cover. Some damp snow at lower elevations.

Red Flags
Red Flags
Wind Loading
Cracking
Comments

Headed up to the top of White Baldy hoping the recrystallyzed snow on the north, combined with the winds had smoothed things, and filled old tracks in for improved skiing quality. The wind was blowing in the moderate category from about the Red Pine bridge on up. The wind was creating sensitive wind slabs down on the moraine below White Baldy, with cracking out above your skin track common. We decided we would walk up the face of White Baldy until we started to hit wind slab, but we ended up at the top because the due north was not slabbing up just getting filled in with light density faceted snow. The wind seemed to have more effect on E and W facing aspects. The surface snow is about as loose as it gets on the high N, skinning was a constant battle like walking in sand, one step forward two steps back. This faceted snow was also what the wind slabs were forming on top of and could be triggered quite easily, with cracking common place in wind affected terrain. If we get a decent amount of new snow I would suspect things are gonna get loose, with the new snow landing on either weak faceted snow, or loading up wind slabs on this same weak snow, or its going to land on a icy hard bed surface on the more southerly aspects. Even if the new snow comes in wet it will not bond well to the extremely weak faceted snow. The snow was still being transported and slabbing up when we left around 2:30, it was also filling in your tracks and the skin trail almost as fast as you could make them.

Photos: cracking in sensitive wind drift resting on faceted snow, wind transport, and filling in tracks and skin trails as fast as you could make them

Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate