National Severe Storms Laboratory
（重定向自NSSL）
![NSSL's first Doppler weather radar located in Norman, Oklahoma. 1970s research using this radar led to NWS NEXRAD WSR-88D radar network.](/Images/godic/202501/30/Doppler_Weather_Radar_-_NOAA2951.jpg")
![The first tornado captured on May 24, 1973, by the NSSL Doppler weather radar and NSSL chase personnel. The tornado is here in its early stage of formation near Union City, Oklahoma](/Images/godic/202501/30/Tornado4_-_NOAA2951.jpg")
The National Severe Storms Laboratory (NSSL) is a National Oceanic and Atmospheric Administration (NOAA) weather research laboratory under the Office of Oceanic and Atmospheric Research. It is one of seven NOAA Research Laboratories (RLs).
NSSL studies weather radar, tornadoes, flash floods, lightning, damaging winds, hail, and winter weather in an effort to improve warnings and forecasts and to save lives and reduce property damage. Researchers at NSSL developed the first Doppler weather radar, and have contributed to the development of NEXRAD (WSR-88D). The group conducts various research experiments using mobile radar systems and continues to make advances in the field of meteorology.