Jun 20, 1999
Summary of flash flooding on June 20 1999:A cluster of thunderstorms developed during the early morning hours of June 20 on the nose of a nocturnal low-level jet. These storms moved very little, and with deep-layer moisture in place to support heavy rainfall rates, these thunderstorms produced very heavy rainfall. Mayes County was hardest hit, with radar estimating four to seven inches of rain over a large part of the county. One man was killed when his car was washed away by floodwaters flow
Source: NOAA National Weather Service Storm Events Database (event 5700972). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Mayes County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.