Flash Flood in Oklahoma
Every flash flood event the National Weather Service has filed in Oklahoma, year by year, with the most significant episodes. Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
The most significant on the map
The most significant flash flood episodes in Oklahoma.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 3,321
- Deaths
- 66
- Injuries
- 178
- Damage
- $78 million
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Tornadoes and Flash Flooding in Oklahoma, May 31, 2013A tornado outbreak occurred during the late afternoon and early evening hours of the 31st. A stalled front and deeply mixed dryline served as a focus for thunderstorm development. The front/dryline triple point was where the most intense supercells initiated.
- Tornadoes and Flash Flooding in Oklahoma, April 27 to 28, 2024A widespread, long-duration and historic severe weather and tornado outbreak occurred from the late morning through late evening on the 27th.
- Flash Flooding and Damaging Wind in Oklahoma, June 14 to 15, 2010Significant flooding occurred over parts of central Oklahoma. Numerous homes and cars were flooded. One person died, and at least 136 people were injured. Damage was estimated at $5.5 million in Oklahoma county alone.
- Tornadoes and Flash Flooding in Oklahoma, August 18 to 19, 2007Tropical Storm Erin, the fifth named storm of the 2007 Atlantic Hurricane season, developed quickly over the northeast Gulf of Mexico on the 15th, before moving onshore during the morning hours of the 16th.
- Tornadoes and Flash Flooding in Oklahoma, May 6 to 7, 2024Severe thunderstorms developed over western Oklahoma during the afternoon of the 6th, as a dry line sharpened over the area. These storms developed eastward across central Oklahoma during the afternoon, and then moved into eastern Oklahoma during the evening.
- Tornadoes and Flash Flooding in Oklahoma, March 25 to 26, 2015Severe thunderstorms developed during the afternoon hours to the east of a surface low pressure system located over southwestern Oklahoma and near a stationary frontal boundary that was draped across northeastern Oklahoma.
- Tornadoes and Flash Flooding in Oklahoma, May 25 to 26, 2019Scattered supercells merged into a linear system that produced a variety of severe weather on the 25th.
- Tornadoes and Flash Flooding in Oklahoma, April 30, 2019A stationary front and and upper wave produced numerous thunderstorms with a variety of severe weather on the 30th.
- Tornado and Flash Flooding in Oklahoma, May 23 to 24, 2015A slow-moving upper level trough of low pressure moved from the Rockies into the Plains on the 23rd and 24th. Very moist and slightly unstable air was in place across the Southern Plains ahead of this system.
- Tornadoes and Flash Flooding in Oklahoma, April 19 to 20, 2025A severe weather and flash flood episode occurred across central and southern portions of the WFO Norman Forecast Area from the evening of the 19th into the early morning hours of the 20th. A slow-moving upper system continued to approach the area on the 19th.
- Tornadoes and Flash Flood in Oklahoma, March 6, 2026Severe thunderstorms developed into eastern Oklahoma during the late afternoon of the 6th, ahead of a surface dry line, and moved across the area through the evening hours.
- Flash Flood in Oklahoma, September 26, 1996
- Tornadoes and Flash Flooding in Oklahoma, November 2 to 3, 2024An expansive (high-amplitude) longwave trough, in combination with unseasonable moisture/instability and wind shear, yielded a prolonged period of severe weather and flooding across the southern two-thirds of Oklahoma and portions of western-north Texas.
- Tornadoes and Flash Flooding in Oklahoma, May 6, 2015A potent Spring storm system took shape across the Southern and Central Plains. Strong surface cyclogenesis took shape during the day, allowing ample moisture to return northward with strong southerly flow.
- Tornadoes and Flash Flooding in Oklahoma, May 20 to 21, 2019An extremely unstable environment led to widespread severe weather across Texas and Oklahoma on the 20th into the morning of the 21st.
- Tornadoes and Flash Flood in Oklahoma, November 4, 2022Severe thunderstorms moved through eastern Oklahoma during the late afternoon and evening of the 4th. The atmosphere became moderately unstable ahead of a cold front approaching from the north and a dry line approaching from the west.
- Tornadoes and Flash Flooding in Oklahoma, May 16 to 17, 2017Storms formed along the dryline in the Texas panhandle on the afternoon of the 16th before moving eastward. As a cold front caught up to the storms, convection increased and storms began to form into a line. This line continued eastward across the state overnight into the 17th.
- Tornadoes and Flash Flood in Oklahoma, March 28 to 29, 2007Severe thunderstorms during the early evening hours produced deadly tornadoes...damaging winds and hail across the central and eastern Oklahoma panhandle. Heavy rains caused flash flooding in the eastern Oklahoma panhandle during the late night and early morning hours.
- Tornadoes and Flash Flooding in Oklahoma, October 4 to 5, 1998A major severe weather outbreak occurred across western and central Oklahoma from the afternoon of the 4th through the early morning of the 5th, resulting in 19 tornadoes, straight-line wind damage, hail as large as baseballs, and significant flooding across portions of Lincoln…
- Flash Flooding and Flooding in Oklahoma, June 17 to 18, 2015As tropical storm Bill made its way up through eastern and central Oklahoma through the 17th and 18th, widespread flash flooding ensued.
- Flash Flooding and Flooding in Oklahoma, April 29 to 30, 2025Multiple rounds of severe convection and flooding occurred from the predawn hours of the 29th into morning hours of the 30th.
- Tornadoes and Flash Flooding in Oklahoma, May 3 to 4, 1999Summary of events for May 3-4 1999:Following a week-long blocking weather pattern, a strong upper level trough finally moved out of the southwestern U.S.
- Flash Flooding and Flooding in Oklahoma, December 26 to 31, 2015A strong upper level low pressure system moved from the desert southwest into the Southern Plains in late December.
- Tornadoes and Flash Flooding in Oklahoma, May 19 to 20, 2015Severe storms developed near a stalled boundary across Oklahoma and the panhandles and moved eastward through the afternoon and evening of the 19th, causing widespread heavy rainfall and additional flooding.
- Tornadoes and Flash Flooding in Oklahoma, May 19 to 20, 2025Severe thunderstorms developed over central Oklahoma along and ahead of a dry line during the afternoon of the 19th, as an upper level disturbance approached the Southern Plains.
More
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.