National Weather Service United States Department of Commerce

Heavy Rainfall Along the Central Gulf Coast; Critical Fire Weather Conditions in Southern California

Heavy to excessive rainfall, and the potential for scattered flash flooding is forecast through midweek along portions of the Gulf Coast and into the Southeast. A Slight Risk (level 2 of 4) of Excessive Rainfall is in effect Monday and Tuesday. Damaging Santa Ana winds and very low humidity will result in Critical Fire Weather conditions Monday and Tuesday across Southern California. 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?