May 17, 2015
A strong upper level disturbance translated from the Southern Rockies into the Southern Plains on the 16th. Very moist and unstable air was in place across the Southern Plains as this system approached. Severe thunderstorms developed over western Oklahoma and northwestern Texas during the afternoon and moved eastward into eastern Oklahoma in the late evening. By the time the storms reached eastern Oklahoma, a well-organized squall line had evolved but due to very strong low level wind shear, mul
Source: NOAA National Weather Service Storm Events Database (event 578150). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Sequoyah County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.