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Excessive Heat in parts of the Central and Southern U.S.

Heat Advisories and Excessive Heat Warnings extend from the Southern Plains into the Mid-Atlantic and Southeast today. High temperatures for these areas will mostly be in the upper 90s. A few locations may exceed 100. Hot temperatures combined with high dew points will create heat index values of 100 to 115 degrees. Read More >

Upper-air Observations Program

The National Weather Service (NWS) Upper-air Observations Program is managed by the Office of Observations (OBS), which is part of NWS Headquarters located in Silver Spring, Maryland. Upper-air Program staff oversee the operation of 92 Radiosonde stations in North America and the Pacific Islands. It also supports the operation of 10 stations in the Caribbean. Radiosondes provide upper-air data that are essential for weather forecasts and research. OBS staff are also involved in the development, testing and implementation of new radiosonde ground systems.

 

Related Links


Fact Sheet - Information on radiosondes.

Network Maps - Maps showing station locations.

Special Studies  - NWS HQ radiosonde data studies

Background - History of upper-air observations.

NCEI - NOAA/National Centers for Environmental Information. Official source for archives of NWS upper air soundings.

NWSM 10 1401 Rawinsonde Observations Handbook - This manual provides instructions on how to take an upper air observation with NWS equipment.