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National Weather Service Raw Upper Air Observational Data - Monthly

Published by DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: April 12, 2026 at 09:19 PM | Dataset Last Updated: September 01, 2003 at 12:00 AM
These National Weather Service (NWS) raw upper air data contain flight data from sites monthly. Majority are Radiosonde Replacement System (RRS) sites, spanning about 7 to 72 degrees latitude and -171 to 172 degrees longitude. Data go back to 2003 to present operational flights. Non-RRS historically, and currently, submit a monthly data package containing a "H" ASCII flight metadata file a "T" ASCII mandatory for each flight conducted during the month. They also submit a third, higher resolution data file, although in some cases NCEI does not have a decoder for those data. These raw observations are inputs to NWS Radiosonde Standard Levels data (DSI 6301), where the data are encoded at each site using the World Meteorological Organization Binary Universal Form for the Representation of meteorological data (BUFR) format, then packaged with briefer ASCII formatted flight data and transmitted to NCEI via a push to NCEI's FTP from individual sites.

Resources

6 resources available

  • NCEI Dataset Landing Page

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  • NCEI Customer Engagement

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  • National Weather Service Raw Upper Air Observational Data (DSI 6214)

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  • Global Change Master Directory (GCMD) Keywords

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  • GCOS Essential Climate Variables

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  • NOAA National Centers for Environmental Information (NCEI)

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