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National Operational Hydrologic
Remote Sensing Center

Airborne Snow Survey Program

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Operational Snow Survey Program

The National Operational Hydrologic Remote Sensing Center (NOHRSC) has developed, and currently maintains, an operational Airborne Gamma Radiation Snow Survey Program to make airborne Snow Water Equivalent (SWE) and soil moisture measurements. Airborne SWE measurements are used by NWS Weather Forecast Offices (WFO) and NWS River Forecast Centers (RFC) when issuing river and flood forecasts, water supply forecasts, and spring flood outlooks.

2018 - 2019 Snow Season Surveys

Name Dates Surveyed States and Provinces
North Central River Basin
January 04, 2019 ND, SD, MN, WI, IA,
North Central River Basin
January 19, 2019 WI, MI
North Central River Basin
February 5, 2019 WI, MI, IL, IA
Northeast River Basin
February 5, 2019 NY, PA, VT
North Central River Basin
February 13, 2019 ND, SD, MN, WI, MB
Southern Canada
February 22, 2019 MB, SK
North Central River Basin
February 27, 2019 MN, WI, IA
North Central River Basin
March 2, 2019 MN, WI, IA
Lake Superior
March 5, 2019 MN, WI, MI, ON
North Central River Basin
Starting March 13, 2019 ND, SD, MN, WI, MB
North Central River Basin
Starting March 14, 2019 MN, WI
Northeast River Basin
Starting March 20, 2019 NY, VT, NH, MA, ME
Missouri River Basin
Starting March 26, 2019 ND, SD
Alaska Survey
April 3, 2019 AK, YT
Missouri River Basin
April 3, 2019 ND, SD
Northeast River Basin
April 17, 2019 ME, NH, VT, SJ
Sierra Nevada
April 17, 2019 CA



NOHRSC
Mission Statement  |  Contact


National Weather Service
National Operational Hydrologic Remote Sensing Center
Office of Water Prediction
1735 Lake Drive W.
Chanhassen, MN 55317

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Page last modified: Sep 19, 2017
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