(content link) weather.gov    
NOAA link
National Weather Service
  NWS link
National Operational Hydrologic
Remote Sensing Center

Airborne Snow Survey Program

NOHRSC Plane Image
Jet Prop Commander Twin Otter

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.

2022 - 2023 Snow Season Surveys

Name Dates Surveyed States and Provinces
Buffalo, NY
November 22, 2022 NY
North Central River Basin
January 14, 2023 ND, SD, MN, WI, MI, IA
Missouri River Basin
January 23, 2023 ND, SD, NE
North Central River Basin
February 24, 2023 MN
North Central & Missouri River Basin
February 25, 2023 MN, SD, ND
LOW & Rainy Basins
March 2, 2023 MN, MB
Missouri River Basin
March 12, 2023 MT, ND, SK, MB
March 16, 2023 NY, VT, NH, M, PAE
North Central River Basin
March 18, 2023 MN
Sierra Nevada
March 31, 2023 CA
April 4, 2023 AK
April 7, 2023 MN, ND, WI
April 22, 2023 CA
May 3, 2023 MN, WI, MI

Mission Statement  |  Contact

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

NOHRSC homepage
Contact NOHRSC
Information Quality
Page last modified: Oct 27, 2022 - cloud
About Us
Privacy Policy
Career Opportunities