Our atmosphere has been loaded with water recently. When storms form in this environment, they can become very efficient rain producers and dump extreme amounts of precipitation quickly. During just Saturday morning, the weather sensor at the Chicago O'Hare Airport recorded their largest daily rainfall total on record. The featured chart presents the one minute interval precipitation data from the weather sensor and shows computed rainfall rates measured over various intervals of time. The rates over 1 and 15 minute intervals are extrapolated out over the hour for comparison. The actual hourly rates are shown in red. For a minute by minute basis, rainfall rates once exceeded 8 inches per hour (0.14 inches reported in one minute)!

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Tags:   heavyrain