| Posted: 8:00 a.m., Tuesday, January 23, 2007 |
Huntington Ravine currently has Low avalanche danger. Natural avalanches are very unlikely and human triggered avalanches are unlikely except in isolated pockets. Normal caution is advised.
It is a beautiful morning on the mountain. Snow showers just cleared out and a bright red alpenglow is lighting up the mountain. We can see a couple of point release loose slides have come down in Left Gully, the Chute and Central Gully as a result of 1.7" (4.3 cm) of 11% density new snow that has fallen in the last 24 hours without much wind. These loose snow sluffs have all been small and I suspect similar types of events may occur today. The summit winds are expected to be fairly light today, increasing from 5 to 20 mph (8 to 32 kph) to 15 to 30 mph (24 to 48 kph) with higher gusts this afternoon. Snow showers are also possible today, however, not much accumulation is expected. If you plan on heading into avalanche terrain today you need to pay attention to the wind. As we get into the afternoon we may start seeing some snow move around, particularly if the winds exceed their forecasted speeds. This will be conducive for soft slab development, especially at the tops of gullies. The Lip area is still posted at Moderate due to the possibility of human triggered avalanches in slabs that were deposited over the weekend. As mentioned yesterday, there are a lot of interesting features in the snowpack in the Lip, Sluice and Right Gully that warrant your attention if you plan on traveling in these areas. There is a lot of variability in the snowpack from one place to the next so dig into the snow often rather than betting the farm on one pit.
Winds are going to pick up some more tomorrow and will start to move the new snow into the ravines. Depending on wind speeds and how much snow we squeeze out of the atmosphere between now and then, there could be some stability issues to deal with. Expect increasing avalanche danger tomorrow and check the latest advisory to see what the concerns are. It will also be getting colder with temperatures falling below zero F in the mountains.
The Lion Head Summer Trail is still open. The Summer Trail crosses an avalanche prone slope that has not developed as of yet. The Winter Route is not built for travel without adequate snow cover, so although we are in winter, please help keep the Winter Route in good shape by using the Summer Trail.
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Avalanche Advisory Archives.
United States Avalanche Danger Descriptions.
Échelle Canadienne de risque d’avalanche.
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