Avy Forecast 3.19
Backcountry Avalanche Forecast for Front Range
Issued 03/19/2010 6:42 AM by John Snook
Avalanche Watch in Effect through 03/20/2010 6:00 AM
An avalanche watch is issued for the Front Range zone where heavy snow and strong easterly winds are predicted for Friday along and east of the Continental Divide. Snowfall accumulations could exceed a foot in some areas. The avalanche danger will steadily increase on Friday. The primary concern will be avalanches within the new storm and wind loaded snow. A watch means that if weather forecast conditions verify, then avalanche warning criteria are expected within 24 hours. If storm snowfall accumulations exceed one foot by Saturday morning, then natural and human triggered slides will become likely on Saturday.
Highlights
Heavy snow expected through Friday favoring the east side of the Divide. Accumulations exceeding a foot are possible for favored locations. Strong easterly winds will load westerly aspects. The avalanche danger will rise on Friday. Colder temperatures and wind are ingredients to generate fresh slab. The primary concern will be storm and wind loaded snow sliding on the old snow surface. Choose your terrain carefully by avoiding terrain traps and slopes where slides could carry you into trees, rocks, or over cliffs.
Avalanche Danger
The avalanche danger for the Front Range zone will increase to CONSIDERABLE by Friday afternoon. Human-triggered slides will become probable as storm and wind loaded snow accumulates.
Snow & Avalanche Discussion
Winter will return to the Front Range zone on Friday in a big way. Strong easterly upslope flow will generate heavy snowfall through the day for areas east of the Continental Divide. Expect to find wind loading on aspects facing toward the westerly side of the compass. Strong winds and colder temperatures are ingredients to generate fresh slab. The colder temperatures will help to lock up the pre-existing snowpack, so the primary concern will be avalanches within the new storm and wind loaded snow. As snow accumulates, the avalanche danger will increase through the day. Human triggered slides will become probable by afternoon. The slides will initially not be large, but choose your terrain carefully. Avoid terrain traps where even small sluffs could accumulate into larger debris piles. Also, avoid areas where a small slide could carry you into trees or over exposed terrain such as rocks or cliffs. The forecast indicates areas east of the Divide could receive greater than a foot of new snow. As snow and wind loading accumulates, the size of avalanches could increase. An avalanche watch is issued based on the weather forecast. If snowfall accumulations exceed one foot by Saturday morning, then natural and human triggered slides could become likely on Saturday.