An epic deluge of precipitation hit the St Louis metro area on Tuesday morning with the airport weather station reporting 8.64" of rainfall for the day, which was nearly two inches higher than the previous single day precipitation record (6.85") for the site. The featured chart presents the maximum hourly precipitation reports on record for the site based on unofficial IEM archives. A major caveat for a plot like this is that hourly precipitation data does not have as near a long period of record than the daily reports do. It is still quite remarkable to see two of the maximum hourly values occurring on consecutive hours yesterday morning.

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