National Weather Service United States Department of Commerce

Lake Effect Snow Along Eastern Great Lakes; Critical Fire Weather in Texas

As a potent winter storm moves off the coast of New England, heavy snow will be possible in its wake downwind of the eastern Great Lakes through Monday night and into Tuesday. A quick-hitting winter storm will bring strong winds and snow to the northern Plains and Upper Great Lakes Tuesday. Strong winds and dry conditions will result in critical fire weather conditions in the southern Plains. Read More >

Dewpoint

by Tim Brice and Todd Hall
 
 
Enter a temperature, dewpoint and actual station pressure
 
Temperature:  wet-bulb temperature
Fahrenheit Celsius Kelvin Fahrenheit
Dewpoint: Celsius
Fahrenheit Celsius Kelvin Kelvin
Enter your actual station pressure (not the altimeter setting):  relative humidity
in of mercury mm of mercury millibars (hPA) %

 

What is the formula for the dewpoint script?