National Weather Service United States Department of Commerce

Dangerous Ice Storm for Portions of the South

As arctic air continues to track across the Plains and Midwest as moisture is also returning across portions of the South. Periods of freezing rain and sleet will have significant impacts across Texas, mid-Mississippi Valley, Tennessee and Ohio Valley through the middle of this week. Meanwhile, dangerous cold temperatures will be felt across the Central and Northern Plains. 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?