National Weather Service United States Department of Commerce

Nestor Bringing Impacts to the Southeast; Strong Cold Front in the West

Post-tropical Storm Nestor will produce heavy rain with the potential for flash flooding, storm surge up to 4 feet, strong winds, and severe thunderstorms over Florida and parts of the Southeast. In the West, a cold front will produce mountain snow and strong winds. Fire weather threats remain critical in portions of southern California, the Great Basin, and High Plains. Read More >

Density Altitude

by Tim Brice and Todd Hall

 

 
 
 
Enter the air temperature and choose a unit: Density Altitude in feet:
Fahrenheit Celsius Kelvin ft
Enter the actual station pressure (not the altimeter setting) and choose a unit: Density Altitude in meters:
in of mercury mm of mercury millibars (hPA) m
Enter the dewpoint and choose a unit:  
Fahrenheit Celsius Kelvin  

 

What is the formula for the density altitude script?