Avalanche Forecast
Issued: Jan 19th, 2019 5:24PM
The alpine rating is Storm Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Moderate - Wind effect is extremely variable
Weather Forecast
SATURDAY NIGHT: Cloudy with isolated flurries, moderate west wind, alpine temperatures drop to -10 C.SUNDAY: Mix of sun and cloud, light northwest wind, alpine high temperatures around -8 CMONDAY: Mix of sun and cloud, light northwest wind, alpine high temperatures around -10 C.TUESDAY: Cloudy with isolated flurries, light to moderate west wind, alpine high temperatures around -8 C.
Avalanche Summary
On Saturday, the new snow was reactive to skier traffic in steep terrain producing fast moving sluffs and some small (size 1) slab avalanches. Small natural avalanches (20 cm deep) were also reported on north and east aspects.Slab avalanches are currently most likely in wind affected terrain. The key is watching for signs of the new snow becoming reactive, such as cracking, whumpfing, or stiffer deeper pockets of snow.
Snowpack Summary
15-25 cm of snow has fallen in the past few days with strong wind forming deeper deposits at higher elevations. The new snow sits above a layer of large surface hoar crystals and sun crusts, potentially creating touchy slab conditions. In addition to wind loaded slopes, other suspect areas are steep slopes and rolls below 2000 m (where the largest surface hoar exists) and steep south-facing slopes in the alpine (where sun crusts exist).The middle and lower portions of the snowpack are generally well-settled and strong.
Problems
Storm Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 20th, 2019 2:00PM