National Weather Service United States Department of Commerce

Fire Weather Concerns for Parts of California; Cool Temperatures for Much of the Midwest and East

Hot and dry conditions will continue through Friday across portions of California, resulting in critical fire weather conditions. Poor air quality will also persist over portions of the West Coast and Plains due to wildfire smoke. Elsewhere, much of the Midwest and eastern U.S. will experience cool weather into Saturday. Heavy rainfall will result in some flooding concerns over South Florida. Read More >

Altimeter Setting

by Tim Brice and Todd Hall

 

 
 
 
 
Enter the elevation of the station and choose your units6: Altimeter Setting in in. of mercury:
feet meters in HG
Enter your station pressure (not the altimeter setting) and choose your units: Altimeter Setting in mm of mercury:
in of mercury mm of mercury millibars (hPA) mm HG
  Altimeter Setting in millibars (hPa):
  mb (hPA)

 

What is the formula for the altimeter setting script?