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Provision of Avalanche Information
Comment Period Active
Data Mining Tool
Outreach / Education
WFO: All WFO
The National Weather Service provides a suite of information for the dangers associated with Avalanches. Much of this information is provided in coordination with Avalanche Centers (many administered by the United States Forest Service (USFS)). Avalanches Watches and Warnings: Authorized alerting authorities at state and federal avalanche centers issue Avalanche Watches (AVAs) and Avalanche Warnings (AVWs). In turn, the NWS conveys these messages via NWS dissemination systems, including NOAA Weather Radio All Hazards (NWR). This is addressed in NWSI 10- 518. In accordance with state and local Emergency Alert System (EAS) Plans, these watches and warnings may also be conveyed to the EAS to more broadly increase public awareness of these potentially life-threatening hazards. Special Avalanche Bulletin (SAB): Authorized alerting authorities at some state and federal avalanche centers issue additional avalanche information, such as Avalanche Advisories. In turn, some NWS offices convey these messages in SAB text products via NWS dissemination systems. Some offices also disseminate the information via NWR, depending on the product's content. SAB product formats vary across WFOs and are configured to meet the specific information needs of local partners and stakeholders. In accordance with Federal Communications Commission (FCC) Rules, this information is not conveyed to the EAS. Snow Avalanche Guidance (SAG): In 2007, WFO Reno began issuing the operational, web-based Sierra Backcountry Forecast; this product provides the local avalanche center with forecasted meteorological parameters critical to the center's forecasts of avalanche conditions. The forecast may also be used by backcountry enthusiasts in helping them prepare for weather conditions they should expect to encounter in avalanche prone areas. The NWS has expanded the scope of this product to some additional offices as the experimental Snow Avalanche Guidance Product (SAG). This experimental SAG is available on the internet as a web- based product and also via NWS dissemination systems as a text- based product. The Experimental SAG product formats vary across WFOs in accordance with the specific avalanche information needs of local partners and stakeholders. SAG information is provided on NWS dissemination systems; it is sometimes broadcast on NWR, depending on the product content and office's decision.
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Comment Start Date:
2018-09-25 Comment End Date: 2018-10-31
Last edit date to this meta-data: 2019-07-05