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Local Observations

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DateNameLocationNew SnowWindsSky/CloudsLayersRecent Avalanche ActivityObservations/Assessments
22-NOV-2015Kanaan BauslerNadahini East behind Green Shack25cmWest ModerateOVC > BKNFacets throughout the bottom 50cm of a 75cm total snowpack. Ground up to 30cm is just pure facets (.75-1.5mm), lots of air space between the sugar, HOLLOW. Deep and light, all layers are Fist hardness with only differentiation coming from insignificant settling and wind events. Temperature gradient in the bottom 10cm from -2.5C at the ground to -3.5C at 10. Naturals all along Nadahini North face above the bowl/pass. One HS-N-R2-D2 about halfway up the slope behind the Green Shack en route to the bowl. As we were skinning past it the snowpack collapsed below us, very loud WHOOMPF. At the short peak ~6000ft elevation at the end of the bowl/pass to the glacier we triggered another WHOOMPF and a 20m crack that initiated an HS-F-R1-D1 avalanche. Fragile facets up there with an energetic wind slab that propagates easily.ECTX x2 CT17 @ 50cm from ground Q3 BRK

DateNameLocationNew SnowWindsSky/CloudsLayersRecent Avalanche ActivityObservations/Assessments
17-NOV-2015Jeff MoskiNorth Aspect above treeline15 cmcalm partly cloudyDug a pit near treeline and noticed a few different interfaces. Snowpack depth was 205 cm. Top 15 cm was the new snow. At 40 cm there was a compact 1 finger "mid-pack". Down 105 cm there was a pencil hard ice crust. Compression tests failed at top 15cm fairly easily CT8. All else was hard to propagate. Q2 shears when I pried on column with shovel. Isolated pockets of "wind" soft slab exist at higher elevation. Careful on unsuspecting rollovers in the trees and such terrain traps. At higher elevations with noticeable wind effect, human triggered soft slabs were likely. Mitigate by choosing terrain wisely and practice safe travel technique. Great snow!

DateNameLocationNew SnowWindsSky/CloudsLayersRecent Avalanche ActivityObservations/Assessments
31-OCT-2015Erik StevensNadahini areanorthwest, lightovercastSurface is mostly rime crust, with pockets of softer wind-affected snow in gullies. Overall snow depth above 4500ft is about 30-60cm. Snowpack is various rime crusts and dense wind slabs, with pencil-hard ice crust near 15cm down. Facets just starting to form below the crust near the ground.none besides small loose slides in couloirs and below cliffsGood skiing to be had above 5000ft!

Disclaimer: Use the data on this website at your own discretion as part of a thorough evaluation of the avalanche hazard in the field. Remember that conditions vary greatly from place to place and hour to hour, so evaluate the snow you find locally, and compare it to what you read on this website. We are not responsible for how you use the information contained on this site, and assume no liability for its use. Remember, information is no substitute for experience. Educate yourself in avalanche safety. The information on this website is not sufficient for completely safe backcountry decision making. Use at your own risk.