National Weather Service United States Department of Commerce

Heat Wave in the Central and Southern U.S.; Severe Thunderstorms and Excessive Rainfall in the Upper Midwest

An ongoing heat wave will continue today and Tuesday from much of the Great Plains to the lower Mississippi River Valley and into northern Florida. Dangerous heat is also expected in southern California and Puerto Rico. Scattered severe thunderstorms will be possible over parts of the Upper Midwest today with destructive wind gusts possible for parts of Minnesota into Wisconsin. 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?