The tool provided online by Mide is relatively easy to use with the data from NWS. This data was used to calculate the pressure for Los Angeles. While the sea-level pressure was calculated as 1012.4mb, the actual pressure was found to be 1002.0801mb.
Atmospheric pressure is affected by temperature and elevation. The National Weather Service (NWS) reports the barometric...
Atmospheric pressure is affected by temperature and elevation. The National Weather Service (NWS) reports the barometric pressure as a corrected value for the air pressure at sea level. So, if you live at a higher elevation, your air pressure calculation will be different from what is reported on the website. Use the internet to search for “air pressure altitude calculator” and pick one. Plug in the values that it asks for using the reported values from the NWS and your...
You wish to use a barometer to determine your elevation above sea-level. Local weather reports indicate that the temperature is 85°F and sea-level pressure is 30.25 inHg. If your barometer reads a pressure of 22.4 inHg, what is your elevation above sea level? Assume a temperature lapse-rate of m = 0.00357°F/ft, and a linear temperature-altitude relationship (T = T0 − mz).