Avalanche Advisory Archive Pre-2016
Date Issued: | 2013-02-05 |
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Danger: | 1 |
Trend: | 3 |
Probability: | 1 |
Size: | 1 |
Problem: | 0 |
Discussion: | The National Weather Service Forecasts- TODAY...MOSTLY CLOUDY. AREAS OF FOG IN THE MORNING. CHANCE OF SNOW IN THE MORNING...THEN CHANCE OF RAIN IN THE AFTERNOON. HIGHS AROUND 35. NORTHEAST WIND 15 TO 25 MPH BECOMING SOUTHEAST 10 TO 20 MPH IN THE AFTERNOON. WIND GUSTS AROUND 35 MPH DOWNTOWN JUNEAU AND DOUGLAS IN THE MORNING. TONIGHT...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS 21 TO 29. SOUTHEAST WIND 5 TO 15 MPH. WEDNESDAY...DECREASING CLOUDS. HIGHS AROUND 33. SOUTHEAST WIND 10 TO 20 MPH. WEDNESDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SNOW. LOWS AROUND 23. SOUTHEAST WIND 10 MPH. Temperatures have remained below freezing at the Mt Roberts Tram Summit and above for the last 24hours plus...although they did warm back up to 31 overnight. Previously over the weekend we received rain all the way to mountain top with snow new snow only on the very upper portions of the mountains. The lower elevation snowpack is solidifying as long as temperatures remain below freezing. Today temperatures are forecast to fall slightly over the next 24+ hours. We may have some small pockets of windloaded snow at mountain top elevations. This would be the primary concern for the day but is not a widespread condition. Be aware that as winds change direction today you may once again see some loading on new aspects. With temperatures falling and almost no precip in the forecast avalanche danger will remain low for the next 24 hours. |
Tip: | Sympathetic Trigger: When an avalanche descends, especially in very unstable conditions, it can trigger avalanches on other nearby slopes. Don?t confuse sympathetic trigger with related terms of ?remote? trigger, meaning an avalanche triggered by a person some distance away or ?stepping down? where a smaller avalanche breaks down into a deeper weak layer. Sympathetic triggers usually mean that the snowpack is especially unstable and you can trigger other avalanches easily. |