National Weather Service United States Department of Commerce

Heavy Rainfall and Flash Flooding Over the Southeast; Lingering Fire Weather Concerns in the West

Heavy rainfall, flooding, gusty winds, and the risk of a few tornadoes will continue over portions of the Southeast U.S. as Sally gradually weakens. Elsewhere, critical fire weather conditions linger over parts of Oregon, northern California, and the Great Basin, along with poor air quality for much of the West. Cool weather prevails from the Upper Midwest into New England. Read More >

 Pressure Altitude

by Tim Brice and Todd Hall
 
 
   
Enter your uncorrected station pressure (not the altimeter setting): Pressure Altitude in feet:
  in of mercury mm of mercury millibars (hPA) ft
  Pressure Altitude in meters:
  m

 

What is the formula for the pressure altitude script?