Alert archive / Oklahoma / Flash Flood Warnings in 2024
Flash Flood Warning 76, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at Aug 11, 2024, 5:28 AM CDT for 6 counties in Oklahoma. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 11, 2024, 5:28 AM CDT (10:28 UTC)
- Expired
- Aug 11, 2024, 8:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Flood severity
- None
Counties Blaine County, OK, Canadian County, OK, Cleveland County, OK, Kingfisher County, OK, Logan County, OK, Oklahoma County, OK
The radar
The Norman radar (KTLX), 57 km from the middle of the area, began a volume at 10:30 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 10.5 hours before the alert went out and 302 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 513 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 142 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Aug 11, 1:22 AM CDT, 4 hours 6 minutes earlier. Its key messages:
- Updated at 119 AM CDT Sun Aug 11 2024
- Another morning with much needed rain across parts of the area. A few strong storms possible, along with heavy rainfall and isolated flooding possible.
- Heat returns to parts of the area today and area-wide tomorrow Monday. Heat Advisory for southwest Oklahoma and western north Texas Sunday. Heat headlines likely through the upcoming week.
Area forecast discussion, Aug 11, 1:22 AM CDT, 4 hours 6 minutes before
Area Forecast Discussion
National Weather Service Norman OK
122 AM CDT Sun Aug 11 2024
...New SHORT TERM, LONG TERM...
.KEY MESSAGES...
Updated at 119 AM CDT Sun Aug 11 2024
- Another morning with much needed rain across parts of the area.
A few strong storms possible, along with heavy rainfall and
isolated flooding possible.
- Heat returns to parts of the area today and area-wide tomorrow
Monday. Heat Advisory for southwest Oklahoma and western north
Texas Sunday. Heat headlines likely through the upcoming week.
&&
.SHORT TERM...
(Today and tonight)
Issued at 119 AM CDT Sun Aug 11 2024
Area of showers and thunderstorms will continue to move east across
central into eastern Oklahoma this morning. No severe weather is
expected with this activity, however very high precipitable water
will result in efficient rain producers and heavy rainfall with
some isolated flooding possible.
This will also keep temperatures bit cooler along and east of I-35
compared to normal, although not as cool as was seen Saturday.
Farther west where more insolation is expected along with increasing
southerly low level flow and warming boundary layer temperatures
will respond and climb back into the upper 90s and lower 100s. These
temps combined with dewpoints in the 60s will result in afternoon
heat indices between 105 and 110. Will likely go with a Heat
Advisory for portions of southwest Oklahoma and western north Texas.
For tonight, there remains a chance for a few showers/storms across
northern Oklahoma with better chances shifting north and northeast
of the area. South winds will remain breezy which will aid in
keeping overnight temperates quite a bit warmer than we have had
the last few nights.
&&
.LONG TERM...
(Monday through Saturday)
Issued at 119 AM CDT Sun Aug 11 2024
Although upper ridge begins to build back north still appears there
will be a low chance for a few showers along the Oklahoma Kansas
border Monday night. Otherwise, the middle of the week will be much
warmer with little in the way of rain chances. Will also see a
stretch beginning Monday and possible lingering through much of the
week for daily need of heat headlines as hot and humid conditions
remain in place.
Models then diverge as we go toward the end of the work week wrt to
strength or lack of upper ridge and possible trough/front and some
additional rain chances. For now will keep some low pops and
slightly cooler(less hot) temperatures, especially across the
north.
&&
.AVIATION...
(06Z TAFS)
Issued at 1234 AM CDT Sun Aug 11 2024
Mostly MVFR conditions are expected, though there is a low chance
of LIFR conditions with showers and thunderstorms as they move
through KPNC and KSWO early Sunday morning. Precipitation exits
the area mid- to late- morning.
&&
.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK 89 76 95 77 / 40 20 10 0
Hobart OK 101 78 102 76 / 20 10 0 0
Wichita Falls TX 101 80 103 78 / 20 10 0 0
Gage OK 99 71 95 71 / 20 20 10 10
Ponca City OK 84 71 94 72 / 90 50 10 30
Durant OK 94 76 100 77 / 30 10 0 0
&&
.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Heat Advisory from 1 PM this afternoon to 8 PM CDT this evening
for OKZ033>039-044-045.
TX...Heat Advisory from 1 PM this afternoon to 8 PM CDT this evening
for TXZ083>090.
&&
SHORT TERM...30
LONG TERM....30
AVIATION...01Hazardous weather outlook, Aug 11, 3:44 AM CDT, 1 hour 44 minutes before
Hazardous Weather Outlook National Weather Service Norman OK 344 AM CDT Sun Aug 11 2024 OKZ004>048-050>052-TXZ083>090-120845- 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- 344 AM CDT Sun Aug 11 2024 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Today and Tonight... .Thunderstorms... Showers and thunderstorms across the area this morning will continue to move east out of the area during the afternoon hours. A few strong and isolated severe storms will be possible with quarter size hail possible. Heavy rainfall will also be possible. .Heat... Afternoon heat indices of 105 to 110 will be likely across southwest Oklahoma and western north Texas this afternoon. A Heat Advisory is in effect for that area. .DAYS TWO THROUGH SEVEN...Monday through Saturday... .Thunderstorms... Low chances for thunderstorms will continue Sunday and Monday night, mainly across northern Oklahoma. Storm chances return Thursday and Friday. .Heat... Dangerous heat and heat indices are expected across much of the area Monday through Saturday. 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, Aug 11, 3:39 AM CDT, 1 hour 49 minutes before
Special Weather Statement
National Weather Service Norman OK
339 AM CDT Sun Aug 11 2024
OKZ015>017-110930-
Dewey OK-Custer OK-Blaine OK-
339 AM CDT Sun Aug 11 2024
...Strong thunderstorms will impact portions of northeastern Custer,
central Blaine and eastern Dewey Counties through 430 AM CDT...
At 339 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 3 miles southeast of Taloga to 4 miles east of
Fay. Movement was east at 20 mph.
HAZARD...Wind gusts of 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Watonga, Taloga, Greenfield, Oakwood, Eagle City, Fay, and Hucmac.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3614 9895 3588 9821 3584 9821 3563 9843
3593 9906
TIME...MOT...LOC 0839Z 279DEG 17KT 3602 9891 3581 9857
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
JTSpecial weather statement, Aug 11, 3:46 AM CDT, 1 hour 42 minutes before
Special Weather Statement
National Weather Service Norman OK
346 AM CDT Sun Aug 11 2024
OKZ028-029-110900-
Cleveland OK-McClain OK-
346 AM CDT Sun Aug 11 2024
...A strong thunderstorm will impact portions of central Cleveland
and west central McClain Counties through 400 AM CDT...
At 345 AM CDT, Doppler radar was tracking a strong thunderstorm near
Cole, moving east at 10 mph.
HAZARD...Wind gusts of 30 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Southern Norman, Noble, Goldsby, Dibble, Washington, and Cole.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3504 9765 3512 9767 3520 9742 3501 9740
TIME...MOT...LOC 0845Z 265DEG 10KT 3509 9759
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH
JTSpecial weather statement, Aug 11, 4:26 AM CDT, 1 hour 2 minutes before
Special Weather Statement
National Weather Service Norman OK
426 AM CDT Sun Aug 11 2024
OKZ010-011-015>018-024-111000-
Major OK-Kingfisher OK-Woodward OK-Canadian OK-Dewey OK-Custer OK-
Blaine OK-
426 AM CDT Sun Aug 11 2024
...Strong thunderstorms will impact portions of southwestern
Kingfisher, northeastern Custer, Blaine, eastern Dewey, southwestern
Major, northwestern Canadian and southeastern Woodward Counties
through 500 AM CDT...
At 426 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northeast of Mutual to 6 miles east of
Taloga to 4 miles south of Eagle City to 6 miles north of Calumet.
Movement was southeast at 30 mph.
HAZARD...Wind gusts of 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
El Reno, Watonga, Taloga, Geary, Okarche, Seiling, Canton, Calumet,
Longdale, Hitchcock, Greenfield, Oakwood, Mutual, Canton Lake,
Quinlan, Orion, Concho, Chester, Eagle City, and Cestos.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3565 9782 3543 9817 3553 9831 3555 9831
3555 9835 3620 9930 3650 9903
TIME...MOT...LOC 0926Z 294DEG 24KT 3631 9911 3605 9886 3587 9857 3570
9816
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
30Special weather statement, Aug 11, 4:33 AM CDT, 55 minutes before
Special Weather Statement
National Weather Service Norman OK
433 AM CDT Sun Aug 11 2024
OKZ027-028-111000-
Grady OK-McClain OK-
433 AM CDT Sun Aug 11 2024
...A strong thunderstorm will impact portions of northeastern Grady
and west central McClain Counties through 500 AM CDT...
At 433 AM CDT, Doppler radar was tracking a strong thunderstorm near
Blanchard, moving east at 15 mph.
HAZARD...Wind gusts of 40 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Blanchard, Goldsby, Dibble, Washington, and Cole.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
This storm may intensify, so be certain to monitor NOAA Weather
Radio, local radio stations or available television stations for
additional information and possible warnings from the National
Weather Service.
&&
LAT...LON 3500 9743 3503 9773 3515 9772 3518 9747
3517 9746
TIME...MOT...LOC 0933Z 274DEG 13KT 3510 9764
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH
30Special weather statement, Aug 11, 4:34 AM CDT, 54 minutes before
Special Weather Statement
National Weather Service Norman OK
434 AM CDT Sun Aug 11 2024
OKZ024-027-111000-
Grady OK-Canadian OK-
434 AM CDT Sun Aug 11 2024
...A strong thunderstorm will impact portions of northern Grady and
southeastern Canadian Counties through 500 AM CDT...
At 434 AM CDT, Doppler radar was tracking a strong thunderstorm over
Minco, moving east at 20 mph.
HAZARD...Wind gusts of 40 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Mustang, Tuttle, Union City, and Minco.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
This storm may intensify, so be certain to monitor NOAA Weather
Radio, local radio stations or available television stations for
additional information and possible warnings from the National
Weather Service.
&&
LAT...LON 3523 9804 3538 9804 3543 9769 3526 9772
TIME...MOT...LOC 0934Z 249DEG 18KT 3532 9795
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH
30Special weather statement, Aug 11, 5:14 AM CDT, 14 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 1:14 AM CDT | Special Weather Statement | OUN | Dewey | 31 min |
| Aug 11, 1:19 AM CDT | Heat Advisory | OUN | Comanche, Cotton, Greer, Harmon, Jackson, Jefferson and 3 more | 19 hr |
| Aug 11, 1:22 AM CDT | Special Weather Statement | OUN | Dewey | 23 min |
| Aug 11, 1:30 AM CDT | Special Weather Statement | OUN | Dewey | 30 min |
| Aug 11, 1:35 AM CDT | Severe Thunderstorm Warning | OUN | Dewey, Woodward | 25 min |
| Aug 11, 1:58 AM CDT | Special Weather Statement | OUN | Blaine | 32 min |
| Aug 11, 2:01 AM CDT | Special Weather Statement | OUN | Dewey | 29 min |
| Aug 11, 2:04 AM CDT | Severe Thunderstorm Warning | OUN | Dewey | 27 min |
| Aug 11, 2:21 AM CDT | Areal Flood Advisory | OUN | Dewey | 30 min |
| Aug 11, 2:30 AM CDT | Areal Flood Advisory | OUN | Grady | 3 hr |
| Aug 11, 2:30 AM CDT | Special Weather Statement | OUN | Woodward | 30 min |
| Aug 11, 2:36 AM CDT | Severe Thunderstorm Warning | OUN | Dewey, Ellis, Woodward | 9 min |
| Aug 11, 2:38 AM CDT | Severe Thunderstorm Warning | OUN | Dewey, Woodward | 22 min |
| Aug 11, 2:51 AM CDT | Flash Flood Warning | OUN | Dewey | 4 hr |
| Aug 11, 2:55 AM CDT | Areal Flood Advisory | OUN | Cleveland, Oklahoma | 3 hr |
| Aug 11, 2:57 AM CDT | Special Weather Statement | OUN | Blaine | 18 min |
| Aug 11, 2:59 AM CDT | Special Weather Statement | OUN | Dewey | 31 min |
| Aug 11, 3:02 AM CDT | Special Weather Statement | OUN | Grady | 28 min |
| Aug 11, 3:13 AM CDT | Severe Thunderstorm Warning | OUN | Woodward | 14 min |
| Aug 11, 3:16 AM CDT | Special Weather Statement | OUN | Cleveland | 29 min |
| Aug 11, 3:31 AM CDT | Areal Flood Advisory | OUN | Cleveland, McClain | 3 hr |
| Aug 11, 3:32 AM CDT | Flash Flood Warning | OUN | Blaine, Dewey | 5 hr |
| Aug 11, 3:35 AM CDT | Special Weather Statement | OUN | Dewey | 40 min |
| Aug 11, 3:39 AM CDT | Special Weather Statement | OUN | Blaine, Dewey | 51 min |
| Aug 11, 3:46 AM CDT | Special Weather Statement | OUN | McClain | 14 min |
| Aug 11, 4:03 AM CDT | Areal Flood Advisory | OUN | Cleveland, McClain | 3 hr |
| Aug 11, 4:15 AM CDT | Areal Flood Advisory | OUN | Kingfisher | 3 hr |
| Aug 11, 4:26 AM CDT | Special Weather Statement | OUN | Blaine | 34 min |
| Aug 11, 4:33 AM CDT | Special Weather Statement | OUN | McClain | 27 min |
| Aug 11, 4:34 AM CDT | Special Weather Statement | OUN | Canadian | 26 min |
| Aug 11, 4:37 AM CDT | Severe Thunderstorm Warning | OUN | McClain | 23 min |
| Aug 11, 4:57 AM CDT | Areal Flood Advisory | OUN | Canadian, Cleveland, Oklahoma | 3 hr |
| Aug 11, 5:14 AM CDT | Special Weather Statement | OUN | Blaine, Canadian | 31 min |
| Aug 11, 5:17 AM CDT | Areal Flood Advisory | OUN | Blaine, Canadian, Kingfisher | 3 hr |
| Aug 11, 5:48 AM CDT | Flash Flood Warning | OUN | Canadian, Cleveland, Grady, McClain | 5 hr |
| Aug 11, 6:11 AM CDT | Special Weather Statement | OUN | Canadian, Cleveland, Oklahoma, Pottawatomie | 34 min |
| Aug 11, 6:48 AM CDT | Flash Flood Warning | OUN | Coal, Hughes, McClain, Pontotoc, Pottawatomie, Seminole | 3 hr |
| Aug 11, 7:18 AM CDT | Areal Flood Warning | OUN | Dewey | 3 hr |
| Aug 11, 7:56 AM CDT | Flash Flood Warning | OUN | Cleveland, Garvin, Grady, McClain, Murray, Pontotoc | 3 hr |
| Aug 11, 8:08 AM CDT | River Flood Warning | OUN | Pottawatomie, Seminole | 18 hr |
| Aug 11, 8:18 AM CDT | River Flood Advisory | OUN | Blaine, Canadian | 11 hr |
| Aug 11, 8:24 AM CDT | River Flood Advisory | OUN | Cleveland, McClain | 18 hr |
| Aug 11, 8:27 AM CDT | Areal Flood Warning | OUN | Blaine, Canadian, Cleveland, Kingfisher, Logan, Oklahoma | 3 hr |
| Aug 11, 8:32 AM CDT | Areal Flood Warning | OUN | Blaine, Dewey | 3 hr |
| Aug 11, 9:26 AM CDT | Areal Flood Advisory | OUN | Atoka, Carter, Coal, Johnston, Love, Marshall and 2 more | 3 hr |
| Aug 11, 9:45 AM CDT | River Flood Advisory | OUN | Dewey, Major, Woodward | 11 hr |
| Aug 11, 9:53 AM CDT | Areal Flood Warning | OUN | Coal, Hughes, McClain, Pontotoc, Pottawatomie, Seminole | 2 hr |
| Aug 11, 10:11 AM CDT | Flash Flood Warning | OUN | Oklahoma | 2 hr |
| Aug 11, 10:45 AM CDT | River Flood Warning | OUN | Oklahoma | 12 hr |
| Aug 11, 11:03 AM CDT | Areal Flood Warning | OUN | Cleveland, Garvin, Grady, McClain, Murray, Pontotoc | 117 min |
| Aug 11, 11:42 AM CDT | River Flood Warning | OUN | Dewey, Major, Woodward | 3 hr |
| Aug 11, 1:04 PM CDT | Areal Flood Advisory | OUN | Pontotoc | 3 hr |
| Aug 11, 1:35 PM CDT | Heat Advisory | OUN | Atoka, Bryan, Canadian, Carter, Cleveland, Coal and 27 more | 30 hr |
| Aug 11, 5:12 PM CDT | River Flood Advisory | OUN | Lincoln, Oklahoma, Pottawatomie | 9 hr |
Nearby
Flash Flood Warnings in Oklahoma, 2024Every flash flood warning in 2024
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.