Mar 18, 2021
The presence of a frontal boundary, a persistent flow of unseasonably moist air from the Gulf of Mexico, and the slow approach of an upper level system to the Southern Plains, resulted in multiple rounds of showers and thunderstorms across northeastern Oklahoma from the 12th through the 17th. Four to eight inches of rain fell along and north of a line from Pawhuska to Grove during the period, with up to ten inches occurring locally. This widespread heavy rainfall resulted in moderate flooding on
Source: NOAA National Weather Service Storm Events Database (event 948338). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Ottawa County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.