About the Forecast
The Mount Washington Avalanche Center (MWAC) produces daily avalanche forecasts for a forecast area of approximately 106 square miles (67,840 Acres) and is comprised of regions on the White Mountain National Forest and NH State Parks.
Field-based avalanche forecasters analyze snow observations from across the area combined with weather forecast guidance to create a forecast. Daily avalanche forecasts are issued every day at 7 am.
Avalanche and snowpack information comes in from MWAC forecasters, public observations, avalanche professionals, AMC Caretakers, Harvard Cabin Caretakers and Randolph Mountain Club Caretakers on a daily basis.
Forecasters use these elevation bands to help identify where in the terrain avalanche problems are concentrated. Note that these problems likely exist elsewhere in the terrain, but to a lesser extent.
It is also important to note that these bands are approximations and should be used along with the aspect graphic as a general indicator of avalanche problem locations, not as a “map” for navigating around avalanche problems.