Avalanche Advisory Archive 2016 – 2018
Date Issued: | 2017-02-28 06:46:19 |
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Danger: | 1 |
Primary Trend: | 3 |
Primary Probability: | 3 |
Primary Likelihood: | 1 |
Primary Size: | 1 |
Primary Description: | We have a few isolates windslabs lingering from Saturdays snow and winds over the weekend. Winds continue to blow this morning but wind transport is fairly minimal. When the new snwo arrives windloading will become a big concern with cold snow and moderate wind speeds. |
Secondary Trend: | 3 |
Secondary Probability: | 2 |
Secondary Likelihood: | 1 |
Secondary Size: | 1 |
Secondary Description: | Not Yet.... But will it happen??? Lets wait to see how much new snow we get. Spatial variability will be high as the new snow comes to rest... We may see enough snow to build storm slabs... Pray for snow!!! |
Discussion: | The National Weather Service Forecasts- Today- Snow. Snow accumulation 2 to 4 inches. Highs steady near 32. Northeast wind 10 to 15 mph. Tonight- Snow. Snow accumulation 2 to 4 inches. Lows around 23. Northeast wind 10 to 15 mph. Wednesday- Snow. Snow accumulation 5 to 7 inches. Highs around 28. Southeast wind 10 to 20 mph. Temperatures remain cool around the region. This morning Eaglecrest is 24f at the base. 20f mid mountain and 17f on top. Mt Roberts is 21f. Winds are out of the North blowing 15-25... The snow has not hit just yet but we are forecast to be getting some for the next several days. We have a few shallow windslabs lingering in the backcountry from the snow on Saturday you will want to continue to be aware of. As this new storm comes in Avalanche danger will increase. The volumes don't look huge and the temperatures look good so far. Winds will be the big concern. Two weeks ago we had our last storm and we had a large natural avalanche cycle. This removed a great number of weak layers in the backcountry in these areas that slid. Yet that weakness remains in other areas that may not have slid. Do you remember which one of your favorite backcountry lines slid two weeks ago? As this new storm kicks in spatial variability will be a big issue. We have dormant weak layers in places. We have more recent wind slabs in places... We have hard icy bed surfaces especially on south facing slopes... We have some facets on the surface in the trees and wind sheltered areas on north facing slopes. Think about the avalanche beast and start to picture in your mind where he may be building as the storm comes through and conditions change... Currently we only have a few isolated wind slabs and conditions are mostly stable. Avalanche Danger is LOW today. Yet as this storm arrives things will continue to change throughout the day as danger levels rise. |
Tip: | Here is a link to a great short video... on The Airport Approach to Avalanche Transceiver Rescue by Manuel Genswein. http://mountainacademy.salomon.com/en/demo/104/airport-approach |
Forecaster: | Tom Mattice |