Local Air Pressure at a given Altitude
(Input) Altitude in Feet:
local sea level barometic pressure (in Hg) usually available at a local airport
Standard (29,92 in Hg)
Corrected for local sea level press
inches water at 60
Torr (mm Hg)
High or Low pressure fronts will affect this nominal pressure. A high pressure front can be the same as dropping in altitude by 1000 ft.
A Low pressure front would be the equivalent of an increase of 1000 ft. Severe storms can cause up to a 1500 ft equivalent change in pressure.
Leak Testing Specialists
Correction Factor for the altitude input in cell