NOTE: We are currently working on the Snowpack Tracker mobile display! In the meantime, use a desktop or iPad device for best functionality. Thanks for your patience. Let it snow!
This dashboard provides an interactive viewer for the Bridger-Teton Avalanche Center (BTAC) historic avalanche and weather dataset. Plots update daily with previous 24-hr conditions.
Display defaults to 24-hr data for the previous 30 days. This view is a reduced set of panels, with additional data for the current season including SKY condition, SH/NSF, multiday new snow and SWE sums, and daily avalanche hazard rating. The Image Export tool provides a high-res image (.png) of the current view.
Display defaults to 24-hr data for the current season, with the ability to view historic seasons back to 1974-75. Includes weather and avalanche event panels from Snowpack Tracker, with additional panels including multiday cumulative SWE, new snow density, and 24-hr wind totals. Each panel includes pan, zoom, and image export tools on the right side-bar.
Coming soon....! This display will include hourly data for the previous 7 days from all weather stations in the BTAC network.
Snowpack Tracker and Historic Data display 24-hr data (or "white sheet" data) from the BTAC. Weather stations at Jackson Hole Mountain Resort include Rendezvous Bowl plot (9,580'), Raymer plot (9,360'), Mid-Mountain plot (8,180'), and Rendezvous Summit (10,450').
Avalanche events submitted by the public or recorded by BTAC forecasters are color-coded for crown depth. Note that crown depth is often estimated by observers. 'Area' includes events from avalanche control work at Jackson Hole Mountain Resort, and 'BC' is all recorded backcountry events, including the JHMR sidecountry.
Snow depth is manually measured from a total snow depth stake, and 24-hr new snow and snow water equivalent (SWE) are measured using a SnowMetrics density tube. Measurements represent previous 24-hr totals, and are taken at approximately 10 AM daily. SWE is displayed as SWEx10 to enable quick estimation of new snow density. For example, new snow and SWEx10 bars of equal height represent 10% density. Settlement is calculated as [total depth previous day] + [24-hr new snow] - [total depth current day].
SKY conditions and the presence (Yes or No) of surface hoar / near-surface faceting are based on observations from BTAC forecasters, and represent general conditions for the Teton forecast area. SKY condition follows standard SWAG codes.
Calculated from 24-hr measured SWE, using rolling cumulative sums over the specified window length.
Calculated from 24-hr new snow and SWE values, and represented as a unitless fraction following standard SWAG methods.
Includes minimum and maximum values during the previous 24 hrs (5am - 5am).
Includes previous 24-hr (5am - 5am) average wind speed, wind direction, and maximum gust. Wind direction vectors indicate the compass direction the wind is from. Recorded at Rendezvous Summit and the Raymer wind station (located on the Headwall ridge above the Raymer Plot). Note: wind direction vectors are best viewed for time ranges of ~3 months or less (use zoom tools).
Wind sources same as above, expressed as miles per day (total miles of wind in previous 24 hrs).