![]() ![]() Louis-Lambert International Airport from 11pm until 2pm on the 26th.ĭuring that time, rainfall rates exceeding 2"/hr were observed and 9.06" of rain fell in that 15 hour period. The training thunderstorms expanded in area, and by around 10pm were impacting the St. Louis metropolitan area.Ī persistent series of thunderstorms developed around 9:00pm on July 25th across east-central Missouri. Louis starting at 9:00pm on July 25th showing the development of training thunderstorms across the St. Louis County, was a "Flash Flood Emergency." This type of Flash Flood Warning is reserved for high-end flash flooding events, like the one experience on July 26th.Ī regional radar loop from KLSX in St. Multi-Radar Multi-Sensor (MRMS) 24hr Radar-Estimated Rainfall as of 12pm on July 26th.įlash Flood Warnings issued by NWS St. ![]() Louis City, where a man drowned in his car near Skinker Blvd, and another in Hazelwood where a man drowned attempting to flee his flooded truck.Ĭlick here to step through our GIS-based event review. The storm-total rainfall was 9.07", but spans two days. This value broke the previous record of 6.85", which occurred on August 20th, 1915 due to the remnants of the Galveston 1915 Hurricane. Louis-Lambert International Airport also observed a new all-time record for daily precipitation: 8.64" of rain fell since midnight Central Standard Time (Daylight Savings Time is not used for climatological record-keeping). Clair County in Illinois, causing multiple swift water rescues and scores of flooded interstates and homes across the St. A longer axis of over 8" of rain fell from northern Montgomery County in Missouri to St. Peters, MO according to radar-estimated rainfall products and several CoCoRaHS/spotter reports. Upwards of 11" of rain fell over the course of roughly 8 hours in an axis from Hawk Point, MO to St. Louis metropolitan area, through the early hours of July 26th and into the morning commute. Several rounds of thunderstorms with rainfall rates exceeding 2in/hr affected this area, including the St. ![]() During the early morning of Tuesday, July 26th, 2022, a complex of training thunderstorms set up roughly along the I-70 corridor in Missouri and I-64 corridor in Illinois. ![]()
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