Flash Flood, Comanche
- When
- June 19, 1:00 PM CST to 4:00 PM CST
- Where
- Comanche County, 2.62 mi NW of Lawton to 2.06 mi NNW of Lawton
- Cause
- Heavy Rain
- Reported by
- Public
- Coordinates
- 34.638, -98.421
High water rescue reported.
Flash Flooding and Damaging Winds in Oklahoma, June 19, 2020
A broken line of thunderstorms led to a few severe wind gusts and isolated flooding across portions of southern Oklahoma on the 19th.
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
- 5
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.
A broken line of thunderstorms led to a few severe wind gusts and isolated flooding across portions of southern Oklahoma on the 19th.
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 Jun 19, 12:15 PM CST, 45 minutes earlier.
Area forecast discussion, Jun 19, 12:15 PM CST, 45 minutes before
Area Forecast Discussion National Weather Service Norman OK 115 PM CDT Fri Jun 19 2020 ...New AVIATION... .SHORT TERM... (Today and tonight) Issued at 357 AM CDT Fri Jun 19 2020 Although the thunderstorms have struggled to develop in or move into Oklahoma, the gust front ahead of the Kansas storms is moving south into Oklahoma early this morning and we will likely see storms continue to develop near and just behind this boundary this morning. More storms are expected to develop later this morning and this afternoon as the airmass diurnally destabilizes and the mid-level trough currently over the Intermountain West moves east and approaches the Southern and Central Plains. Forecast precipitable water values are in the 1.75" to 2.00" amounts by 00Z this evening, with the 12km NAM showing values up to nearly 2.4" in northern Oklahoma. So efficient rainfall is expected with these storms, and there is the potential for excessive rainfall in areas where training storms occur. And enough instability develops this afternoon to bring an hail and wind threat with any stronger storms. && .LONG TERM... (Saturday through Thursday) Issued at 255 AM CDT Fri Jun 19 2020 Showers and thunderstorms will remain possible across at least portions of the fa over the weekend and through much of next week. Models show a shortwave moving across the central Plains Saturday which will provide some upper support for storm development. The shortwave is moving through the overall flow due to an upper low over south central Canada. This low will gradually move east over the Great Lakes region causing NW flow over the region. Disturbances in the flow, sfc heating, and any boundaries in the area could lead to shower/storm development in the fa next week. Otherwise, showers/storms could move with the NW flow from the High Plains and/or development in KS into portions of the fa. Some strong to severe storms could be possible this weekend. With cloud cover and rain, temperatures are generally expected to be near or below average through much of next week. && .AVIATION... (18Z TAFS) Issued at 103 PM CDT Fri Jun 19 2020 Terminals across central Oklahoma will remain under MVFR conditions for the next couple of hours as ongoing thunderstorms has reduced both ceilings and visibilities. Expecting more high based thunderstorms to continue through 21Z with mostly VFR conditions, although visibilities could reduce to brief periods of MVFR to IFR conditions. High based thunderstorms will be possible through the rest of this forecast period. && .PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 85 69 85 68 / 80 40 60 60 Hobart OK 86 67 88 68 / 60 50 40 40 Wichita Falls TX 91 69 91 72 / 60 40 30 40 Gage OK 80 63 85 64 / 70 60 40 10 Ponca City OK 78 68 84 68 / 100 50 60 40 Durant OK 93 71 89 72 / 10 30 30 40 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...None. TX...None. && SHORT TERM...06 LONG TERM....25 AVIATION...68
Hazardous weather outlook, Jun 19, 11:46 AM CST, 1 hour 14 minutes before
Hazardous Weather Outlook National Weather Service Norman OK 1246 PM CDT Fri Jun 19 2020 OKZ004>048-050>052-TXZ083>090-201115- 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- 1246 PM CDT Fri Jun 19 2020 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...This afternoon and Tonight... .Thunderstorms... There is a slight risk for severe storms across portions of western Oklahoma and western north Texas. Location... The slight risk is south and west of a line from Cheyenne and Clinton, to near Lawton, to Henrietta Texas. There is a Marginal risk across most of the rest of the area. Timing... Most likely through midnight. Impacts... Wind gusts up to 70 mph. Hail up to the size of half dollars. Locally heavy rain and flooding. Discussion... Strong to severe storms will be possible this afternoon and evening, mainly over the southwest quarter of Oklahoma and western north Texas. Additional storms are expected to develop over west Texas during the afternoon, then move east into western north Texas this evening. Showers and storms will remain possible overnight into early Saturday but the potential for severe storms will diminish late this evening. .SPOTTER AND EMERGENCY MANAGEMENT STATEMENT... Storm spotter groups and emergency management personnel across the risk area should prepare for severe weather operations later this afternoon and this evening. .DAYS TWO THROUGH SEVEN...Saturday through Thursday... .Thunderstorms... Strong to severe storms will be possible again on Saturday, Sunday, and Monday. The risk for severe weather will diminish somewhat for the rest of the week. Strong winds and large hail will be the main threats. There are some uncertainties due to the possible impact of storms the previous days and nights on the airmass across the region. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook.
In the hours before
Special weather statement, Jun 19, 9:36 AM CST, 3 hours 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1036 AM CDT Fri Jun 19 2020
OKZ019-024-025-027>029-191600-
Grady OK-Oklahoma OK-Logan OK-Canadian OK-Cleveland OK-McClain OK-
1036 AM CDT Fri Jun 19 2020
...SIGNIFICANT WEATHER ADVISORY FOR northeastern Grady...western
Oklahoma...south central Logan...southeastern Canadian...northwestern
Cleveland and northwestern McClain Counties Until 1100 AM CDT...
AT 1032 AM CDT, thunderstorms were approaching and developing over
the OKC area. The storms are moving north around 10 to 15 mph.
Expect occasional lightning, areas of heavy rainfall and wind gusts
to 40 mph.
HAZARDS INCLUDE... Wind gusts to 40 MPH...
LAT...LON 3577 9751 3576 9757 3568 9773 3538 9775
3515 9781 3537 9753 3548 9740 3568 9730
TIME...MOT...LOC 1532Z 194DEG 13KT 3569 9754 3557 9760 3543 9768 3528
9776
SIXSpecial weather statement, Jun 19, 10:27 AM CST, 2 hours 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1127 AM CDT Fri Jun 19 2020
OKZ019-025-026-029-191700-
Oklahoma OK-Logan OK-Cleveland OK-Lincoln OK-
1127 AM CDT Fri Jun 19 2020
...SIGNIFICANT WEATHER ADVISORY FOR Oklahoma...southeastern Logan...
north central Cleveland and northwestern Lincoln Counties Until noon
CDT...
AT 1120 AM CDT, strong thunderstorms were located near downtown OKC
to Spencer and Luther. The storms were moving moving northeast at
15 MPH.
HAZARDS INCLUDE...
Wind gusts to 45 MPH...
Locally heavy rainfall will cause some flooding...
LAT...LON 3596 9722 3594 9719 3595 9716 3592 9703
3536 9723 3538 9754 3599 9737
TIME...MOT...LOC 1620Z 239DEG 14KT 3548 9735
SIXSpecial weather statement, Jun 19, 12:47 PM CST, 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 147 PM CDT Fri Jun 19 2020 OKZ038-044-191915- Cotton OK-Comanche OK- 147 PM CDT Fri Jun 19 2020 ...SIGNIFICANT WEATHER ADVISORY FOR northwestern Cotton and eastern Comanche Counties Until 215 PM CDT... AT 145 PM CDT, a strong thunderstorm was located 4 miles northwest of Geronimo, moving northeast at 25 MPH. HAZARDS INCLUDE... Hail up to the size of nickels... Wind gusts to 40 MPH... LAT...LON 3435 9841 3442 9861 3476 9847 3460 9818 TIME...MOT...LOC 1845Z 206DEG 34KT 3452 9846 SIX
The radar
The Altus AFB radar (KFDR), 59 km away, was scanning. The volume nearest the first event began at 18:59 UTC.
Event by event
3 thunderstorm wind, 2 flash flood. Local standard time, as filed.
Thunderstorm Wind, Comanche
- When
- June 19, 1:10 PM CST
- Where
- Comanche County, 3.25 mi SSW of Lawton
- Measured
- 58 kt (67 mph) measured gust
- Reported by
- ASOS
- Coordinates
- 34.570, -98.420
Flash Flood, Comanche
- When
- June 19, 3:45 PM CST
- Where
- Comanche County, 5.1 mi WNW of Lawton to 4.04 mi W of Lawton
- Cause
- Heavy Rain
- Reported by
- Social Media
- Coordinates
- 34.636, -98.474
Measurement of about 3.5 inches of rain reported on social media. Picture of one to two feet of water in town as well.
Thunderstorm Wind, Hughes
- When
- June 19, 4:00 PM CST
- Where
- Hughes County, 2.91 mi ESE of Holdenville
- Measured
- 50 kt (58 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 35.070, -96.350
Thunderstorm Wind, Hughes
- When
- June 19, 4:15 PM CST
- Where
- Hughes County, 2.91 mi ESE of Holdenville
- Measured
- 52 kt (60 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 35.070, -96.350
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.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Rip Current in South Carolina, June 19 to 20, 2020
- Tornadoes and Flooding in Texas, June 19, 2020
- Flash Flooding and Flooding in Texas, June 19 to 23, 2020
- Damaging Winds in Oklahoma, June 19, 2020
- Flash Flooding and Hail in North Carolina, June 19 to 20, 2020
- Damaging Wind in Michigan, June 19, 2020
- Damaging Winds and Lightning Strike in Virginia, June 19, 2020
- Hail and Damaging Winds in Texas, June 19, 2020
- Lightning Strike in Virginia, June 19, 2020
- Flash Flooding and Damaging Winds in Florida, June 19, 2020
- Heat in Maine, June 19, 2020
- Hail and Damaging Winds in Florida, June 19, 2020
More
Every storm in Oklahoma in 2020Every state in 2020This day in weather historyWarnings in Oklahoma, June 2020
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: 904788, 904790, 904792, 904794, 904795.