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Posted

Sweet potato pie! We're heading up to the Wendy Thompson hut in a week and a half. Any snowpack beta you can offer would be appriecated. Did you see any natural avalache activity? Any skier triggered slides? What were the daytime highs?

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Posted

roadside snowpack seemed low for this time of year, but once you get to 5500' everything is deeply covered.

 

i did not see any natural slides or fracture lines. i saw some buried debris in places but i don't know how old it was. it was snowing heavily at the time so i just assumed it was time to stick to safer lines and never dug a pit. somebody else dug a pit and said he saw old crusts with surface hoar on top. i think he said those layers were not shearing cleanly, but i can't elaborate. a backcountry-inexperienced snowboarder in our group set off a small sluff on a steep convexity, but it was nothing more that you'd expect on a day that it was snowing heavily.

Posted

Two weeks ago near RR pass we saw some big hoar frost crystals in the trees down low. Up higher there was 4 inches of powder on top of a pretty hard layer.

 

At the time we watched snowmobiles highmark on some 30 degree slopes.

Posted

South Coast Region

 

WEATHER: After a two day pulse of Pacific moisture, the weather has again

settled down and dried out. Since Saturday 30cm of storm snow accumulated in

the alpine, although below treeline much of this fell as rain. Winds remained

moderate to strong out of the SW. The weather forecast calls for a second

system to move onshore by Wednesday, bringing more snow to the alpine and rain

to valley bottom.

SNOWPACK: The new snow and wind combined to produce a soft slab in the alpine,

which has not bonded very well to layers below. At low elevations, rain brought

the snowpack to near zero degrees, causing spring like wet, loose avalanche

potential. The wind slab in the alpine will take a while to fully stabilize and

by then more snow will be coming from Wednesday’s storm. Cornices have been

replenished and are ready to drop.

AVALANCHES: The storm snow was easily triggered by ski cutting and explosives,

failing up to 50cm deep to size 2. Very little natural activity was seen.

FORECAST OF AVALANCHE DANGER UP TO WEDNESDAY EVENING (FEB 19)

ALPINE - Considerable

TREELINE - Considerable

BELOW TREELINE - Moderate

TRAVEL ADVISORY: Watch for lingering potential for human triggering of the

windslab, particularly on north aspects where wind transport has increased the

load. Cornice fall is likely this week. Be aware the new snow on Wednesday may

produce renewed potential for storm snow failures.

 

Posted

Thanks, Greg. I had feared it might be even worse than that. "Plenty" at treeline must mean twice that or better ??? It sounds like maybe I should head up there soon.

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