CAIC: Colorado Avalanche Information Center   Backcountry Forecasts  >  Front Range
CGS: Colorado Geological Survey
  Backcountry Avalanche Forecast for Front Range Printer Friendly
Issued 02/08/2010 8:13 AM by Ethan Greene
Highlights

Storm totals in the Front Range zone range from about 1/2 an inch in the Berthoud Pass area, 5" on the east side of the Front Range, and in the Cameron Pass area. The winds were light and variable throughout the event, but have shifted to the northwest this morning.

The avalanche danger remains highest in near and above treeline areas that face the east side of the compass.

<p>Storm totals in the Front Range zone range from about 1/2 an inch in the Berthoud Pass area, 5" on the east side of the Front Range, and in the Cameron Pass area. The winds were light and variable throughout the event, but have shifted to the northwest this morning.</p> <p>The avalanche danger remains highest in near and above treeline areas that face the east side of the compass.</p> Storm totals 0.5 to 5". Considerable avalanche danger. Check http://tinyurl.com/CAICzone1 for details.
Avalanche Danger

The avalanche danger for the Front Range zone remains CONSIDERABLE on N-E-S aspects near and just above treeline. The danger is MODERATE on all other slopes.

We appreciate knowing what you see in the backcountry. You can submit observations here.

<p>The avalanche danger for the Front Range zone remains CONSIDERABLE on N-E-S aspects near and just above treeline. The danger is MODERATE on all other slopes.</p> <p>We appreciate knowing what you see in the backcountry. You can <a href="http://avalanche.state.co.us/pub/contact.php?subject=Backcountry+Observation">submit observations here.</a></p>
Avalanche Danger Scale
Snow & Avalanche Discussion

The weather has eased off in the Front Range zone and so have the number of avalanches reported from the area. The last storm is still producing snow in areas of the Front Range, but will ease off today. This storm was not big enough to create a major increase in the avalanche danger, but with a fairly weak snowpack areas where winter travelers can trigger avalanches remain.

We continue to receive reports of very weak and collapsing snow from around the Front Range zone. There are no new reports of human triggered avalanches yesterday, but there have been 4 human triggered avalanches reported in the last 4 days. These were mostly shallow soft slab avalanches from near or above treeline areas. The snowpack remains quite weak and even small weather events (wind and snow) can create fresh avalanches.

Today and on Tuesday the cloud cover will be decreasing. As the sun hits the new snow layer and warms previously cold snow layer, chances of triggering an avalanche will increase. Us caution traveling on or under steep slopes with fresh wind deposits.

<p>The weather has eased off in the Front Range zone and so have the number of avalanches reported from the area. The last storm is still producing snow in areas of the Front Range, but will ease off today. This storm was not big enough to create a major increase in the avalanche danger, but with a fairly weak snowpack areas where winter travelers can trigger avalanches remain.</p> <p>We continue to receive reports of very weak and collapsing snow from around the Front Range zone. There are no new reports of human triggered avalanches yesterday, but there have been 4 human triggered avalanches reported in the last 4 days. These were mostly shallow soft slab avalanches from near or above treeline areas. The snowpack remains quite weak and even small weather events (wind and snow) can create fresh avalanches.</p> <p>Today and on Tuesday the cloud cover will be decreasing. As the sun hits the new snow layer and warms previously cold snow layer, chances of triggering an avalanche will increase. Us caution traveling on or under steep slopes with fresh wind deposits.</p>
Weather Discussion

Colorado is sandwiched between a long-wave trough descending into the mid-west from Canada and a jet streak that is working its way through northern Mexico. Today the weak low-pressure system that brought us light winds and snow over the last 36 hours will move off to the east and merge with the northern trough. The flow will remain light in most areas and turn to the north and northwest in the Northern and Central Mountains and to the southwest in the Southern Mountains. Cold air will move into the Front Range, but probably won't make it into the Steamboat or Vail/Summit zones. The atmosphere over Colorado will slowly dry out over the next two days. Cloud cover will slowly decrease though the day and snow showers will linger longest in Sangre de Cristo and Front Range zones. A weak ridge of high pressure will build over Colorado on Tuesday but will quickly be replaced by an advancing low-pressure trough towards the end of the week.

<p>Colorado is sandwiched between a long-wave trough descending into the mid-west from Canada and a jet streak that is working its way through northern Mexico. Today the weak low-pressure system that brought us light winds and snow over the last 36 hours will move off to the east and merge with the northern trough. The flow will remain light in most areas and turn to the north and northwest in the Northern and Central Mountains and to the southwest in the Southern Mountains. Cold air will move into the Front Range, but probably won't make it into the Steamboat or Vail/Summit zones. The atmosphere over Colorado will slowly dry out over the next two days. Cloud cover will slowly decrease though the day and snow showers will linger longest in Sangre de Cristo and Front Range zones. A weak ridge of high pressure will build over Colorado on Tuesday but will quickly be replaced by an advancing low-pressure trough towards the end of the week.</p>
Weather Forecast
Fields Monday Monday Night Tuesday
Temperature (°F) 13 to 18 -2 to 3 15 to 20
Wind Speed (mph) 5 to 15 5 to 15 5-15 G20s
Wind Direction Nly WNW W
Sky Cover Mostly Cloudy MC Partly Cloudy PC Partly Cloudy PC
Snow (in) T to 3 0 to 1 0
Considerable Persistent Slab
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