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![Weather Service Bulletin No wea03672.jpg Weather Service Bulletin No](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_wea03672.jpg?itok=CeCDaaWi)
Description
Weather Service Bulletin No. 8, 1949. P. 21. Cloud base and topradar indicator developed allowing cloud heights to be determined directly abovethe observer. (Image credit: Headquarters Air Weather Service; Courtesy of the family of Nels Johnson, United States Weather Bureau (dec.))
Credit
Headquarters Air Weather Service; Courtesy of the family of Nels Johnson, United States Weather Bureau (dec.)
Collection
Weather Service