National Weather Service United States Department of Commerce

Flash Flood Threats in the Northeast and Southeast; Excessive Heat in the Southwest

Heavy rain will lead to isolated flash flooding threats along coastal New England, and Florida today. Excessive heat will continue to impact the Southwest. Dry, gusty winds, and possible dry lightning will contribute to a critical fire weather threat today across the Interior Northwest. Scattered storms, some severe, are expected Saturday from the northern Plains toward the upper MS Valley. 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.

FAQ - Frequently Asked Questions.

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.

Revision to Appendix K, Station Safety  This revision to Appendix K replaces the version in NWSM 10-1401 Rawinsonde Observations shown above.