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You find our weather info also at:

UK Metoffice

WeatherCloud

Weather Underground

Northeastern Weather Network

AWEKAS

Citizen Weather Observer Program (CWOP)

HAMweather, WeatherForYou, PWS Weather


SPC Sounding Analysis Map - Observed Radiosonde Data

IAD 00 UTC Sounding


IAD 12 UTC Sounding


What you see on this page

Back to the US - Map


Clicking on a site on the map will load 00 UTC sounding for that site and if available the 12 UTC reading.
Note: Not all sites or readings are always available.



Images/Information courtesy of the SPC.

Weather Terms: Relative Humidity - The ratio of the amount of water vapor actually present in the air to the greatest amount possible at the same temperature.