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The National Operational Hydrologic Remote Sensing Center provides comprehensive snow observations, analyses, data sets and map products for the Nation.
Get the latest in-depth analyses of national and regional snow conditions.
Explore our online GIS for comprehensive snow information.
3D visualization - it's a key to understanding the National Snow Analyses.
The NOHRSC measures snow water equivalent and soil moisture using gamma radiation remote sensing. This unique observing system includes two low-flying aircraft to conduct surveys in 31 states, including Alaska, as well as in 8 Canadian provinces. Four NOAA Corps officers pilot the aircraft and operate the remote sensing systems. The data are incorporated into the National Snow Analyses. You'll find survey data, schedules, flight line locations, aerial photos, and information about the program here. The areal extent of snow cover is mapped daily using polar-orbiting and geostationary satellite imagery. Maps are provided for the U.S. and the northern hemisphere.
Download gridded National Snow Analyses data sets for geospatial applications.
Information from the National Snow Analyses is summarized by basins and by basin elevation zones, and is provided here in Standard Hydrologic Exchange Format (SHEF). SRUS43 KMSR 041050 SCVPTR .BR MSP 051104 DM110406/DC11041050 /SDIPZ : :------------------------------------------------------- :National Weather Service :Office of Climate, Water, and Weather Services :National Operational Hydrologic Remote Sensing Center :Chanhassen, Minnesota (952) 361-6610 :------------------------------------------------------- : :Modeled Snow Depth Over Land by Elevation Zones :Modeled 05110406 : :LITTLE PRICKLY PEAR CR. AT WOLF CR MT 2801 1.5 : Avg (inches) Entire Basin : 1.5 ; Avg (inches) Base to 6998' : 2.2 ; Avg (inches) 6998' to Top : :GIBSON RES. MT 2806 1.9 : Avg (inches) Entire Basin : 1.7 ; Avg (inches) Base to 6998' : 2.3 ; Avg (inches) 6998' to Top : :TETON RIVER NR DUTTON MT 2820 0.0 : Avg (inches) Entire Basin : 0.0 ; Avg (inches) Base to 6998' : 0.3 ; Avg (inches) 6998' to Top : Learn about the science and technology at the NOHRSC. From our airborne observing systems to the physics in our models, from our IT architecture to snow economics, learn how we do things and why. Download papers, technical reports, and presentations. The NOHRSC provides and maintains the NWS Integrated Hydrologic Automated Basin Boundary System (IHABBS) GIS database to support river and flood forecasting throughout the nation. Basin boundary data sets and RFC boundaries are provided here in shapefiles that have been tarred and gzipped. Data sets used in our Interactive Snow Information system are also available here, including larger scale basins, rivers and streams, geopolitical boundaries, cities, roads and flight lines for the NOHRSC Airborne Snow Survey program. National Snow HeadlinesWednesday, September 17, 2008Snow Model StatusThe model is down, and out through 17/06Z. We have found the problem and will complete repairs this morning. The model itself should be caught up by this afternoon, with products available this evening.more ...
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