NOAA
DOC/NOAA/NWS/STL/NWAC
The Northwest Weather and Avalanche Center, NWAC, prepares and disseminates mountain weather and avalanche danger forecasts. To make this possible, the NWAC also manages a comprehensive nework of automated mountain weather stations, collecting hourly data from a variety of elevations and geographic locations within the Olympics and Cascades of Washington and northern ... Oregon from November through April. These data include: hourly temperature, wind, precipitation, snow depth, and relative humidity from remote automated sensors; and daily observations of weather, snow, and avalanches from field observers. NWAC prepares the daily forecasts from November through April. These forecasts include: summaries with micro- and meso-scale forecasts, snowpack analysis, avalanche forecast advisory, and hazard assessment. Forecasts are available on-line through a computerized bulletin board, as well as on Internet and phone recordings. Cooperators of NWAC's program have free access to all data and forecasts. Other users will be charged a fee depending upon the work involved in fullfilling the request. Summary provided by http://www.nwac.us/