Glacier National Park Avalanche Forecast
Apr 29th, 2019 8:00AM
Avoid exposure to cornices which are large and taking significant solar input today.
Sunny with cloudy periods, light to moderate NE winds and alpine temperatures of -3C are forecast today. Freezing levels should rise to around 1800m. Tuesday calls for cloudy with scattered flurries, light ridge winds and an alpine high of -3C. Wednesday flurries with possible accumulation of 12cm along with a freezing level of 1800m.
Mod to strong NE winds have redistributed up to 10cm new snow that fell Friday night. This now sits on a melt freeze crust at treeline and below as well as solar aspects in the alpine. Isothermal snow lives below these surface crusts. Total storm snow this week now over 60cm in the high Alpine, N-NE aspects will have retained the driest snow.
One new size 2 slide observed off the Lens slide path of Mt Tupper ran to the top of the runout. No new backcountry slides observed or reported.
Mod -strong N-NE winds Saturday night have reverse loaded recent storm snow onto alpine and exposed treeline SW-S aspects. These new thin slabs will reside over old melt freeze crusts and may be sensitive to human triggering.
- Be careful with reverse loaded pockets of wind slab at ridgeline.
Aspects:South East, South, South West, West, North West.
Alpine temps are forecast to rise to a cool -3C today. However steeper true solar aspects may see enough spring solar radiation to start shedding surface snow in the form of point releases.
- Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.
- Use extra caution on slopes if the snow is moist or wet.
Aspects:South East, South, South West.
Elevations:Treeline, Below Treeline.
Valid until: Apr 30th, 2019 8:00AM