Avalanche Advisory Archive Pre-2016
Date Issued: | 2012-01-14 |
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Danger: | 2 |
Trend: | 1 |
Probability: | 3 |
Size: | 2 |
Problem: | 0 |
Discussion: | The National Weather Service Forecasts- TODAY...SUNNY...LOCALLY WINDY. HIGHS AROUND 25. NORTHEAST WIND 15 TO 25 MPH. WIND GUSTS UP TO 45 MPH...STRONGEST NEAR INTERIOR PASSES AND DOWNTOWN JUNEAU AND DOUGLAS. TONIGHT...MOSTLY CLEAR. LOCALLY WINDY. LOWS AROUND 8 SUNDAY...MOSTLY SUNNY...LOCALLY WINDY. HIGHS AROUND 10 ABOVE. We received quite a bit of new snow this week with winds up to as high as 80 mph. This created weak cornices in places and wind slabs in many locations. They were quite reactive throughout the event. Yet at the end of this event the temperatures hovered very close to 0 in our mountain starting zones. This combination of high winds and warm temperatures helped to rapidly consolidate the snowpack. Densities were quite high. Since the end of this first storm temperatures have fallen by 16-18 degrees helping to solidify the snowpack in place. Be aware cornices may still be quite weak in places. Winds have been low since that time yet are expected to pick up greatly today out of the Northeast. Yesterday evening at the tram we picked up just under 4mm of precipitation (about .16\"). This delivered over 6cm of new snow. (about 2.2\"). Often referred to as COLD SMOKE>>> At the Eaglecrest UAS site during this same time we received 14cm of new snow (5.6\") which has now settled into about 3-4\". Still very low density powder. This low density new snow will be very easily transported by the winds today. Expect to see tender shallow pockets of snow developing on SW faces throughout the next 24 hours. With this in mind avalanche danger is MODERATE at this time. But only for this new snow, and weak cornice areas. Natural avalanches unlikely, potentially destructive avalanches unlikely to come near or reach developed areas. Human triggered avalanches possible. Its going to be a great day. Tomorrow will be much colder and the snow will be much more wind affected. Be sure to bundle up. Its one of those days when you dont want to leave much skin exposed due to the possibility of frostbite. HAVE A GREAT DAY EVERYONE>>> and be safe... Remember your LCES at all time... Place your Lookouts.... Communicate with your partners... Identify your escape routes any time skiing in avalanche terrain. Ski from areas of safety to areas of safety.. Simple practices to use and live by... As well as Tranceiver, Probe, and Shovel... Dont go into the backcountry without them... |
Tip: | AVALANCHE SAFETY CHECK LIST BEFORE YOU LEAVE IN THE AREA- Human Factors - Are there issues that overshadow wise decisions? Terrain - Is it suitable for avalanches? Snowpack - Might it slide? Is it unstable? Other Clues of Instability Weather - Trends in weather are most important; be aware of potential changes with elevation. TRAVEL - IF CAUGHT - RESCUE - |