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![Large rawinsonde balloon is released in foregroundIt will measure atmospheric conditions during ascent nssl0019.jpg Large rawinsonde balloon is released in foregroundIt will measure atmospheric conditions during ascent](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_nssl0019.jpg?itok=NAnq8RPf)
Description
Large rawinsonde balloon is released in foregroundIt will measure atmospheric conditions during ascent. In the background are surface weather instruments.These measure temperature, relative humidity, pressure and precipitation.A mobile radar unit is also shown. (Image credit: NOAA Photo Library, NOAA Central Library; OAR/ERL/National Severe Storms Laboratory (NSSL))