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SPC Sounding Analysis Map - Observed Radiosonde Data

OAK 00 UTC Sounding


OAK 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.

Dew Point: The dew point is the temperature to which air must be cooled, at constant barometric pressure, for water vapor to condense into water. The condensed water is called dew. When the dew point temperature falls below freezing it is called the frost point, as the water no longer creates dew but instead creates frost. The dew point is associated with relative humidity. A high relative humidity indicates that the dew point is closer to the current air temperature. If the relative humidity is 100%, the dew point is equal to the current temperature. Given a constant dew point, an increase in temperature will lead to a decrease in relative humidity.