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Current Barometric Pressure 1-Hour Levels

The map below shows the current highest barometric pressure 1-hour levels measured in millibars (mbar) for each of the metropolitan or other areas across Indiana where barometric pressure is measured by the IDEM. More detailed maps showing the current 1-hour barometric pressure levels measured at each site in a particular area are available by clicking on the boxes on the map. These levels are based on data measured at the IDEM's continuous air monitoring stations and may include data from local governments and private monitoring networks.

The latest imagery available is for Thursday January 20, 2022 20-21:00 EST.

PLEASE NOTE: This data has not been verified by the IDEM and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from IDEM ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.