Flash Flood, Greer
- When
- August 25, 7:30 AM CST to 10:30 AM CST
- Where
- Greer County, 1.44 mi WSW of Granite to 1.41 mi WSW of Granite
- Cause
- Heavy Rain
- Reported by
- Social Media
- Coordinates
- 34.956, -99.405
Flash Flooding in Oklahoma, August 25, 2017
With hurricane Harvey moving inland from the gulf, Oklahoma experienced a predecessor rain event resulting in several areas of flash flooding.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 7
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What happened
The episode as NWS OUN wrote it up.
With hurricane Harvey moving inland from the gulf, Oklahoma experienced a predecessor rain event resulting in several areas of flash flooding.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Norman, OK wrote its last area forecast discussion before the first event at Aug 25, 4:44 AM CST, 2 hours 46 minutes earlier.
Area forecast discussion, Aug 25, 4:44 AM CST, 2 hours 46 minutes before
Area Forecast Discussion National Weather Service Norman OK 544 AM CDT Fri Aug 25 2017 .DISCUSSION... && .AVIATION... MVFR ceilings are expected over much of southwest and central Oklahoma today with an area of rain and thunderstorms drifting slowly north and northeast from southwest Oklahoma. Winds will remain light southeast. Ceilings are expected to lift above MVFR later in the afternoon or evening. && .PREV DISCUSSION... /issued 329 AM CDT Fri Aug 25 2017/ DISCUSSION... Scattered showers and thunderstorms are expected to persist through the day, and especially the morning, over southwest and into central Oklahoma. The very moist upslope flow is expected to continue into the evening before weaker south winds and slightly upper ridging take over. The very humid atmosphere persist through Sunday when a front is expected to drift into Oklahoma overnight and into Monday morning. Enhanced rain chances come then, particularly over northern Oklahoma. The lingering front will provide a focus during the day Monday over central and southern Oklahoma. Modestly drier air will follow Tuesday with a continued weak flow between the tropical system to the south, the upper ridge to the west, and the westerlies to the north and east. By mid-week, a chance for rain moves northward into southeast Oklahoma with the exiting tropical system over eastern Texas, although this will need to be watched for possible further influence if the track of the low is farther north. && .PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 82 67 86 68 / 40 20 20 0 Hobart OK 80 68 86 67 / 60 40 30 10 Wichita Falls TX 83 70 88 69 / 60 30 20 10 Gage OK 80 66 86 65 / 30 20 10 0 Ponca City OK 84 65 87 67 / 0 10 10 0 Durant OK 84 70 86 69 / 30 10 10 10 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...None. TX...None. && 26/09/09
Hazardous weather outlook, Aug 24, 9:50 PM CST, 9 hours 40 minutes before
Hazardous Weather Outlook...updated National Weather Service Norman OK 1050 PM CDT Thu Aug 24 2017 OKZ004>048-050>052-TXZ083>090-251030- Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield- Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne- Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain- Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson- Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton- Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman- Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay- 1050 PM CDT Thu Aug 24 2017 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Tonight... .Thunderstorms... Scattered showers and thundstorms are expected to develop overnight across southwest Oklahoma and western north Texas. No oganized severe weather is expected, although some localized flooding may occur. .DAYS TWO THROUGH SEVEN...Friday through Wednesday... .Thunderstorms... Thunderstorm chances will increase Friday over western north Texas and portions of southwestern Oklahoma. A few strong storms could produce small hail and gusty winds. Localized heavy rainfall will also be possible. At least low chances of thunderstorms will continue Saturday for most of Oklahoma and Texas. Thunderstorm chances will continue Sunday, mainly along and north of Interstate 40. Organized severe weather is not expected but localized heavy rainfall and gusty winds will remain possible. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook.
The radar
The Altus AFB radar (KFDR), 77 km away, was scanning. The volume nearest the first event began at 13:32 UTC.
Event by event
7 flash flood. Local standard time, as filed.
Flash Flood, Oklahoma
- When
- August 25, 8:20 AM CST to 11:20 AM CST
- Where
- Oklahoma County, 2.82 mi NNW of Oklahoma City to 2.85 mi N of Oklahoma City
- Cause
- Heavy Rain
- Reported by
- Department of Highways
- Coordinates
- 35.510, -97.520
ODOT shut down I-235 north bound at 36TH due to flooding.
Flash Flood, Oklahoma
- When
- August 25, 8:39 AM CST to 11:39 AM CST
- Where
- Oklahoma County, 0.91 mi N of Valley Brook to 1.66 mi WNW of (Tik)tinker Afb
- Cause
- Heavy Rain
- Reported by
- Fire Department/Rescue
- Coordinates
- 35.413, -97.479
Flooding caused stalled vehicles in both residential and commercial roadways.
Flash Flood, Oklahoma
- When
- August 25, 8:57 AM CST to 11:57 AM CST
- Where
- Oklahoma County, 1.83 mi WNW of (Tik)tinker Afb to 2.2 mi WNW of (Tik)tinker Afb
- Cause
- Heavy Rain
- Reported by
- Broadcast Media
- Coordinates
- 35.420, -97.420
Water rescue reported at SE 44TH and Sooner.
Flash Flood, Oklahoma
- When
- August 25, 8:58 AM CST to 11:58 AM CST
- Where
- Oklahoma County, 2.25 mi W of Oklahoma City to 1.99 mi W of Oklahoma City
- Cause
- Heavy Rain
- Reported by
- Public
- Coordinates
- 35.470, -97.550
Two water rescues reported near 500 N. Pennsylvania. Also, N. Pennsylvania between 3RD and 7TH was completely impassable.
Flash Flood, Oklahoma
- When
- August 25, 9:08 AM CST to 12:08 PM CST
- Where
- Oklahoma County, 2.74 mi S of Nichols Hills to 2.75 mi SSE of Nichols Hills
- Cause
- Heavy Rain
- Reported by
- Public
- Coordinates
- 35.511, -97.535
Reports of 14 to 18 inches of water flowing over the roads near NW 36TH and Western.
Flash Flood, Oklahoma
- When
- August 25, 12:30 PM CST to 3:30 PM CST
- Where
- Oklahoma County, 3.51 mi N of (Pwa)wiley Post Apt to 3.87 mi NNE of (Pwa)wiley Post Apt
- Cause
- Heavy Rain
- Reported by
- Broadcast Media
- Coordinates
- 35.580, -97.641
What these are
- Flash Flood
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Tropical Storm in Texas, August 25 to 31, 2017
- Hurricane and Tornado in Texas, August 25 to 31, 2017
- Flash Flood in Nebraska, August 25, 2017
- Marine Thunderstorm Winds in Gulf of Mexico, August 25, 2017
- Hail and Damaging Winds in South Dakota, August 25, 2017
- Marine Hurricane/Typhoon in Gulf of Mexico, August 25 to 26, 2017
- Flooding in Florida, August 25 to 28, 2017
- Marine Thunderstorm Winds in Gulf of Mexico, August 25, 2017
- Marine Thunderstorm Winds in Gulf of Mexico, August 25, 2017
- Flash Flood and Hail in South Dakota, August 25, 2017
- Waterspouts in South Atlantic Coastal Waters, August 25, 2017
- Hail in South Dakota, August 25, 2017
More
Every storm in Oklahoma in 2017Every state in 2017This day in weather historyWarnings in Oklahoma, August 2017
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. Each event’s entry at NCEI: 719842, 719843, 719844, 719845, 719846, 719847, 719848.