Huntington Ravine has LOW avalanche danger. Natural avalanches are very unlikely and human triggered avalanches are unlikely except in isolated pockets. Normal caution is advised. These isolated pockets do exist so try to stay on old surface whenever possible.

Overnight we had another natural avalanche which occured in the Sluice. This slide ran on a slope of about 45 degrees and had a crown line about 40 meters wide and at its deepest point about 125 cm deep. This is a great indication as to what the snow stability is like in similar areas. Areas we are most concerned about are the Lip and snowfields underneath the Headwall Ice. Very cold temperatures are inhibiting the settlement of the snow. Approach any wind slabs with caution and be aware of what and who is both above and below you.

If you are planning a trip into the mountains this weekend snow instabilities shouldn't be your only concern. Arctic air is dominating our weather bringing bitterly cold temperatures and dangerous wind chills to the mountains and valleys. The Summit currently has a temperature of -28c (-18F). Temperatures well below zero should persist through the weekend with amazingly cold wind chills. Be prepared for arctic conditions if you venture above treeline. Conditions like these should not be taken lightly. A simple problem such as an untied boot or a mitten blown away by the wind can lead to serious problems.

The John Sherburne ski trail has variable conditions. Expect areas of ice, some blowouts, abrupt water bars and open holes. The new snow has been blown clean off the trail in places and in others it is hiding the ice. Be prepared for sudden changes in the trail.

THE LION HEAD WINTER ROUTE IS OPEN. This is a steep and challenging route. Ice axe, crampons, and the skill to use them well are necessary for safe travel. Remember, it is always easier to go up than come down.

AS ALWAYS, THIS ADVISORY IS ONE MORE TOOL TO HELP YOU MAKE YOUR OWN DECISIONS IN AVALANCHE TERRAIN. It should be used along with your own snow stability assessments, knowledge of safe travel techniques, skill in reading mountain weather's effect on the snowpack, and avalanche rescue.