Alert archive / Oklahoma / Flash Flood Warnings in 2023

Flash Flood Warning 45, NWS Norman, OK

August 12, 2023Cleveland County, Pottawatomie County, Oklahoma

NWS Norman, OK issued this flash flood warning at Aug 12, 2023, 2:19 PM CDT for Cleveland County, Pottawatomie County, Oklahoma. It was in force for 4 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 12, 2023, 2:19 PM CDT (19:19 UTC)
Expired: Aug 12, 2023, 6:30 PM CDT
In force: 4 hr
Issued by: NWS Norman, OK
Area: Storm-based polygon
Flood severity: None

Counties Cleveland County, OK, Pottawatomie County, OK

The radar

The Norman radar (KTLX), 19 km from the middle of the area, began a volume at 19:20 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.

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 12, 12:32 PM CDT, 1 hour 47 minutes earlier.

Area forecast discussion, Aug 12, 12:32 PM CDT, 1 hour 47 minutes before

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Hazardous weather outlook, Aug 12, 4:28 AM CDT, 9 hours 51 minutes before

Hazardous Weather Outlook
National Weather Service Norman OK
428 AM CDT Sat Aug 12 2023

OKZ004>048-050>052-TXZ083>090-130930-
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-
428 AM CDT Sat Aug 12 2023

This hazardous weather outlook is for portions of northern...
western...central...and southern Oklahoma...and western north
Texas.

.DAY ONE...Today and Tonight...

.Thunderstorms...
Isolated, non-severe thunderstorms will continue through early
this morning, mainly across southwest and central Oklahoma.

Additional and more widespread thunderstorms are forecast to
develop across western Oklahoma and progress to the north and east
late this afternoon through this evening. Some thunderstorms will
likely reach severe levels and produce damaging winds. A Slight
Risk of severe thunderstorms exists late this afternoon into the
overnight hours across the northern one-third of Oklahoma.

.Dangerous Heat...
Excessive heat and humidity will be seen over the region today.
Heat warnings are in effect.

.Fire Weather...
Elevated fire weather will continue across western north Texas.

.DAYS TWO THROUGH SEVEN...Sunday through Friday...

.Thunderstorms...
Thunderstorms, some severe with damaging winds, are expected
late Sunday and Sunday night, mainly across the northern half of
Oklahoma.

.Dangerous Heat...
Excessive heat and humidity will continue over most of the region
on Sunday, before a strong cold front brings below average
temperatures to start the new work week. A return to hotter
temperatures is expected for the latter half of next week.

.Fire Weather...
Elevated fire weather will continue across western north Texas
through Sunday.

Get graphics and more details at weather.gov/norman...and follow
our weather forecast office on X and Facebook.

In the hours before

Special weather statement, Aug 12, 8:50 AM CDT, 5 hours 29 minutes before

Special Weather Statement
National Weather Service Norman OK
850 AM CDT Sat Aug 12 2023

OKZ028-040-121415-
Garvin OK-McClain OK-
850 AM CDT Sat Aug 12 2023

...A strong thunderstorm will impact portions of northwestern Garvin
and south central McClain Counties through 915 AM CDT...

At 850 AM CDT, Doppler radar was tracking a strong thunderstorm over
Maysville, moving east at 20 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Pauls Valley, Maysville, Wayne, Paoli, Rosedale, Antioch, and
Whitebead.

This includes Interstate 35 between mile markers 69 and 87.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3473 9751 3485 9749 3493 9738 3492 9712
      3467 9718
TIME...MOT...LOC 1350Z 271DEG 16KT 3481 9742

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

Meister

Special weather statement, Aug 12, 9:15 AM CDT, 5 hours 4 minutes before

Special Weather Statement
National Weather Service Norman OK
915 AM CDT Sat Aug 12 2023

OKZ025-028>030-040-121445-
Oklahoma OK-Pottawatomie OK-Cleveland OK-Garvin OK-McClain OK-
915 AM CDT Sat Aug 12 2023

...Strong thunderstorms will impact portions of northern Garvin,
southeastern Oklahoma, eastern Cleveland, Pottawatomie and
southeastern McClain Counties through 945 AM CDT...

At 915 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Dale to near Brooksville to 3 miles east
of Rosedale to near Antioch. Movement was east at 10 mph.

HAZARD...Wind gusts of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Southeastern Norman, Shawnee, Tecumseh, Pauls Valley, McLoud, Pink,
Maysville, Wayne, Paoli, Asher, Tribbey, Wanette, Byars, Johnson, St.
Louis, Etowah, Rosedale, Brooksville, Macomb, and Newalla.

This includes the following highways...
 Interstate 35 between mile markers 68 and 85.
 Interstate 40 between mile markers 169 and 190.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3494 9689 3496 9693 3490 9693 3467 9722
      3468 9757 3488 9736 3522 9721 3541 9722
      3544 9686 3519 9679
TIME...MOT...LOC 1415Z 266DEG 10KT 3536 9709 3519 9695 3490 9712 3473
9741

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Meister

Special weather statement, Aug 12, 9:48 AM CDT, 4 hours 31 minutes before

Special Weather Statement
National Weather Service Norman OK
948 AM CDT Sat Aug 12 2023

OKZ028-030-031-040-042-121530-
Pottawatomie OK-Garvin OK-Pontotoc OK-McClain OK-Seminole OK-
948 AM CDT Sat Aug 12 2023

...Strong thunderstorms will impact portions of northeastern Garvin,
southwestern Seminole, northwestern Pontotoc, Pottawatomie and
southeastern McClain Counties through 1030 AM CDT...

At 947 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles west of Tecumseh to 3 miles southeast
of Wanette to near Pauls Valley. Movement was east at 15 mph.

HAZARD...Wind gusts up to 50 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...
Shawnee, Tecumseh, Pauls Valley, Wynnewood, Pink, Stratford, Konawa,
Maud, Earlsboro, Asher, Tribbey, Wanette, Byars, St. Louis,
Brooksville, Macomb, Bethel Acres, Whitebead, Harjo, and Trousdale.

This includes Interstate 35 between mile markers 66 and 75.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms 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 3464 9710 3465 9742 3493 9714 3532 9713
      3534 9675 3495 9670
TIME...MOT...LOC 1447Z 261DEG 14KT 3527 9702 3492 9700 3471 9727

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

Bunker

Special weather statement, Aug 12, 11:40 AM CDT, 2 hours 39 minutes before

Special Weather Statement
National Weather Service Norman OK
1140 AM CDT Sat Aug 12 2023

OKZ029-030-121715-
Pottawatomie OK-Cleveland OK-
1140 AM CDT Sat Aug 12 2023

...A strong thunderstorm will impact portions of southeastern
Cleveland and west central Pottawatomie Counties through 1215 PM
CDT...

At 1140 AM CDT, Doppler radar was tracking a strong thunderstorm 4
miles west of Etowah, moving east at 35 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...
Southeastern Norman, Shawnee, Tecumseh, Slaughterville, Pink, Maud,
Tribbey, St. Louis, Etowah, Brooksville, Macomb, southern Lake
Thunderbird, Harjo, Trousdale, and Little Axe.

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 3503 9731 3521 9734 3531 9682 3504 9677
TIME...MOT...LOC 1640Z 262DEG 32KT 3513 9724

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Bunker

Special weather statement, Aug 12, 12:19 PM CDT, 2 hours before

Special Weather Statement
National Weather Service Norman OK
1219 PM CDT Sat Aug 12 2023

OKZ028>031-121800-
Pottawatomie OK-Cleveland OK-McClain OK-Seminole OK-
1219 PM CDT Sat Aug 12 2023

...A strong thunderstorm will impact portions of west central
Seminole, southeastern Cleveland, Pottawatomie and south central
McClain Counties through 100 PM CDT...

At 1219 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lexington, moving northeast at 25 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...
Southeastern Norman, Shawnee, Tecumseh, Purcell, Slaughterville,
Lexington, Pink, Maud, Wayne, Earlsboro, Bowlegs, Tribbey, Wanette,
St. Louis, Etowah, Rosedale, Brooksville, Macomb, Bethel Acres, and
Harjo.

This includes the following highways...
 Interstate 35 between mile markers 83 and 97.
 Interstate 40 between mile markers 184 and 187.

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 3486 9734 3502 9746 3542 9692 3510 9664
TIME...MOT...LOC 1719Z 235DEG 21KT 3499 9733

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Bunker

Special weather statement, Aug 12, 1:17 PM CDT, 1 hour 2 minutes before

Special Weather Statement
National Weather Service Norman OK
117 PM CDT Sat Aug 12 2023

OKZ028>031-042-121845-
Pottawatomie OK-Cleveland OK-Pontotoc OK-McClain OK-Seminole OK-
117 PM CDT Sat Aug 12 2023

...A strong thunderstorm will impact portions of southwestern
Seminole, southeastern Cleveland, northwestern Pontotoc, southwestern
Pottawatomie and southeastern McClain Counties through 145 PM CDT...

At 117 PM CDT, Doppler radar was tracking a strong thunderstorm 5
miles northeast of Rosedale, moving east at 10 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...
Tecumseh, Purcell, Slaughterville, Lexington, Konawa, Byng, Maud,
Wayne, Earlsboro, Washington, Asher, Tribbey, Wanette, Byars, St.
Louis, Etowah, Rosedale, Brooksville, Macomb, and Harjo.

This includes Interstate 35 between mile markers 83 and 98.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3487 9740 3506 9749 3529 9676 3485 9667
TIME...MOT...LOC 1817Z 258DEG 9KT 3500 9714

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Bunker

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 11, 7:07 PM CDT	Special Weather Statement	OUN	Ellis	23 min
Aug 11, 7:08 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Blaine, Custer, Dewey, Washita	52 min
Aug 11, 7:27 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	33 min
Aug 11, 7:32 PM CDT	Special Weather Statement	OUN	Ellis	28 min
Aug 11, 7:44 PM CDT	Special Weather Statement	OUN	Jackson	31 min
Aug 11, 7:56 PM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	49 min
Aug 11, 7:59 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Custer, Dewey, Washita	46 min
Aug 11, 8:37 PM CDT	Special Weather Statement	OUN	Jackson	38 min
Aug 11, 8:39 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Canadian, Garfield, Kingfisher, Major	51 min
Aug 11, 8:45 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	45 min
Aug 11, 8:55 PM CDT	Severe Thunderstorm Warning	OUN	Jackson	35 min
Aug 11, 9:06 PM CDT	Special Weather Statement	OUN	Comanche	24 min
Aug 11, 9:13 PM CDT	Special Weather Statement	OUN	Kiowa	32 min
Aug 11, 9:17 PM CDT	Areal Flood Advisory	OUN	Jackson	3 hr
Aug 11, 9:20 PM CDT	Severe Thunderstorm Warning	OUN	Kiowa, Washita	40 min
Aug 11, 9:22 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan, Noble	53 min
Aug 11, 9:26 PM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson, Kiowa, Tillman	49 min
Aug 11, 9:30 PM CDT	Special Weather Statement	OUN	Washita	30 min
Aug 11, 9:41 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Custer, Washita	34 min
Aug 11, 10:02 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Noble	43 min
Aug 11, 10:10 PM CDT	Special Weather Statement	OUN	Comanche, Tillman	35 min
Aug 11, 10:29 PM CDT	Special Weather Statement	OUN	Canadian	31 min
Aug 11, 10:35 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	40 min
Aug 11, 10:41 PM CDT	Severe Thunderstorm Warning	OUN	Noble	34 min
Aug 11, 10:49 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland	14 min
Aug 11, 11:02 PM CDT	Special Weather Statement	OUN	Kay	28 min
Aug 11, 11:10 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	35 min
Aug 11, 11:19 PM CDT	Special Weather Statement	OUN	Canadian	26 min
Aug 11, 11:40 PM CDT	Special Weather Statement	OUN	Cleveland	35 min
Aug 12, 12:08 AM CDT	Special Weather Statement	OUN	Oklahoma	22 min
Aug 12, 1:23 AM CDT	Special Weather Statement	OUN	Cotton	37 min
Aug 12, 4:06 AM CDT	Special Weather Statement	OUN	Cleveland	24 min
Aug 12, 8:30 AM CDT	Special Weather Statement	OUN	Pottawatomie	30 min
Aug 12, 8:46 AM CDT	Special Weather Statement	OUN	Cleveland	29 min
Aug 12, 8:50 AM CDT	Special Weather Statement	OUN	Garvin	25 min
Aug 12, 9:15 AM CDT	Special Weather Statement	OUN	Garvin, Pottawatomie	30 min
Aug 12, 9:48 AM CDT	Special Weather Statement	OUN	Garvin, Pottawatomie	42 min
Aug 12, 11:40 AM CDT	Special Weather Statement	OUN	Cleveland, Pottawatomie	35 min
Aug 12, 12:19 PM CDT	Special Weather Statement	OUN	McClain, Pottawatomie	41 min
Aug 12, 1:17 PM CDT	Special Weather Statement	OUN	McClain, Pottawatomie	28 min
Aug 12, 1:19 PM CDT	Areal Flood Advisory	OUN	Cleveland, Pottawatomie	3 hr
Aug 12, 2:29 PM CDT	Excessive Heat Warning	OUN	Atoka, Bryan, Carter, Cleveland, Coal, Garvin and 12 more	31 hr
Aug 12, 2:29 PM CDT	Heat Advisory	OUN	Caddo, Canadian, Cleveland, Comanche, Cotton, Garfield and 18 more	31 hr
Aug 12, 2:35 PM CDT	Red Flag Warning	OUN	Comanche, Cotton, Jackson, Jefferson, Stephens, Tillman	30 hr
Aug 12, 3:15 PM CDT	Special Weather Statement	OUN	Jackson	30 min
Aug 12, 3:15 PM CDT	Special Weather Statement	OUN	Caddo	30 min
Aug 12, 3:20 PM CDT	Severe Thunderstorm Warning	OUN	Caddo	40 min
Aug 12, 3:20 PM CDT	Severe Thunderstorm Warning	OUN	Jackson	40 min
Aug 12, 3:24 PM CDT	Special Weather Statement	OUN	Pottawatomie	36 min
Aug 12, 3:34 PM CDT	Severe Thunderstorm Warning	OUN	Caddo	41 min
Aug 12, 3:37 PM CDT	Special Weather Statement	OUN	Alfalfa	23 min
Aug 12, 3:54 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon, Jackson, Kiowa, Tillman	36 min
Aug 12, 3:58 PM CDT	Special Weather Statement	OUN	Stephens	32 min
Aug 12, 4:06 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Caddo, Comanche, Grady, Stephens	39 min
Aug 12, 4:16 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Caddo, Grady	44 min
Aug 12, 4:20 PM CDT	Special Weather Statement	OUN	Pottawatomie	25 min
Aug 12, 4:28 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Comanche, Greer, Harmon, Jackson, Kiowa, Tillman	47 min
Aug 12, 4:42 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Caddo, Comanche, Grady, Kiowa, Stephens	48 min
Aug 12, 5:13 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Harmon, Jackson, Kiowa, Tillman	47 min
Aug 12, 5:24 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Grady, Kiowa, Stephens	51 min
Aug 12, 5:26 PM CDT	Special Weather Statement	OUN	Greer	34 min
Aug 12, 6:03 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Tillman	27 min
Aug 12, 6:13 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Grady, Stephens	47 min
Aug 12, 6:19 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Kiowa, Washita	41 min
Aug 12, 6:21 PM CDT	Areal Flood Advisory	OUN	Caddo, Comanche, Grady, Stephens	3 hr
Aug 12, 6:28 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Tillman	32 min
Aug 12, 6:44 PM CDT	Areal Flood Warning	OUN	Cleveland, McClain, Pottawatomie	3 hr
Aug 12, 6:56 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Washita	34 min
Aug 12, 6:58 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Garvin, Grady, McClain, Stephens	32 min
Aug 11, 7:44 PM CDT	Special Weather Statement	OUN	Hardeman	31 min
Aug 12, 2:24 AM CDT	Special Weather Statement	OUN	Hardeman	36 min
Aug 12, 6:23 PM CDT	Severe Thunderstorm Warning	OUN	Wichita	22 min

Nearby

Flash Flood Warnings in Oklahoma, 2023 Every flash flood warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.