ETEC - National Weather Service 1400 Washington Avenue Albany, NY 12222 51 Comments Questions Please Contact Us. For more information, see the NWS Public Information Statement PNS22-05. Snowfall Records Drought Outlook Historical Records Climate Prediction Public Information Statement Past Weather Events Precipitation & Snowfall Maps. Products are also available in the the NOHRSC Interactive Snow Information section of the website. Stand-alone imagery, seasonal totals, and data downloads in several formats are available in the National Snowfall Analysis section of the website. The National Snowfall Analysis, an observation-based, gridded estimate of recent snowfall, is now an operational product. The daily model forecast is out to Tuesday, 0600 UTC. Snow Analysis Highlights Sunday, DecemSnow Model Status: The model analysis is out to Sunday, 0000 UTC. :Modeled Snow Depth Over Land by Elevation Zones :National Operational Hydrologic Remote Sensing Center :Office of Climate, Water, and Weather Services Minor to moderate travel impacts are expected across Utah, Central/Southern Wyoming, Colorado. Gusty winds, heavy snow and ice are all possible especially across central Wyoming. A significant winter storm will continue today across the Northern/Central Rockies and portions of the Central Plains. BR MSP 051104 DM110406/DC11041050 /SDIPZ Thanksgiving Day Winter Storm Across the Rockies. While the new probabilistic forecast will generally have the influence of a human forecaster, it should be treated as an experimental product and used with caution, while the legacy mountain weather forecast remains the official snow safety forecast.Information from the National Snow Analyses is summarized by basins and byīasin elevation zones, and is provided here in Standard Hydrologic Exchange The new probabilistic forecast is considered a beta / test product for the remainder of this season as we gather feedback and input that will inform how this product evolves in the future to meet the snow safety partners' needs. The human forecaster retains the ability to adjust the median or max value of each of these parameters. Wind direction, speed, gusts, and uncertainty are based on in-house model blends. The temperature, snow level, snow ratio, and lightning fields are based on the official NWS point forecast with the spread for each variable derived from the National Blend of Models (includes 100 ensemble members and a mix of high resolution and global models). The snow and water amount forecasts are based on the Probabilistic Snowfall Forecasts with the human forecaster able to modify the probabilistic information as needed. This includes using more robust science and statistics behind each probabilistic field by leveraging the extensive amount of ensemble forecast information now available. The main goal of developing the new probabilistic mountain weather forecast is to better communicate the range of potential outcomes in the forecast, while also making timing and trend information more readily apparent with visualizations. The operational mountain weather forecast has long provided a simple probabilistic snowfall (and water content) forecast, while many other fields of the forecast like temperature, snow ratio, snow level, and wind provided deterministic forecast values. This map is a product of the National Operational Hydrologic. The new probabilistic mountain weather forecast is being provided for the remainder of this season as a demonstration for our snow safety partners in Little Cottonwood Canyon and Provo Canyon to evaluate the utility of added probabilistic data and new forecast visualizations. For an interactive version of this map, please visit National Operational Hydrologic Remote Sensing (NOHRSC) This map is created using observed snow depth from National Weather Service trained observers, satellite information and aerial snow surveys.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |