Alert archive / Oklahoma / Flash Flood Warnings in 2024

Flash Flood Warning 36, NWS Norman, OK

May 16, 2024Caddo County, Canadian County, Oklahoma

NWS Norman, OK issued this flash flood warning at May 16, 2024, 6:40 AM CDT for Caddo County, Canadian 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: May 16, 2024, 6:40 AM CDT (11:40 UTC)
Expired: May 16, 2024, 10:45 AM CDT
In force: 4 hr
Issued by: NWS Norman, OK
Area: Storm-based polygon
Flood severity: None

Counties Caddo County, OK, Canadian County, OK

The radar

The Norman radar (KTLX), 82 km from the middle of the area, began a volume at 11:44 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

Norman, OK (KOUN), launched 00:00Z, 11.7 hours before the alert went out and 72 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1915 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1790 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 120 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 9.5

Open this sounding in Storm Lab

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 May 16, 6:27 AM CDT, 13 minutes earlier.

Area forecast discussion, May 16, 6:27 AM CDT, 13 minutes before

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Hazardous weather outlook, May 16, 1:34 AM CDT, 5 hours 6 minutes before

Hazardous Weather Outlook
National Weather Service Norman OK
134 AM CDT Thu May 16 2024

OKZ004>048-050>052-TXZ083>090-170645-
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-
134 AM CDT Thu May 16 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...
Thunderstorms will remain possible this morning across southern
Oklahoma and western north Texas. The strongest of them may
produce winds up to 60 mph and quarter-sized hail, as well as a
risk for localized flooding in western north Texas. A low chance
of non-severe storms will occur across the rest of the area
during the day and overnight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday...

.Thunderstorms...
A chance of non-severe thunderstorms exists on Friday, ending in
the afternoon.

Thunderstorm chances will be returning both Sunday and Monday
nights across parts of northern Oklahoma.

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

In the hours before

Local storm report, May 16, 3:35 AM CDT, 3 hours 5 minutes before

Preliminary Local Storm Report
National Weather Service Norman OK
335 AM CDT Thu May 16 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0107 AM     Tstm Wnd Dmg     7 ENE Piedmont          35.69N 97.64W
05/16/2024                   Oklahoma           OK   Emergency Mngr

            Tree down blocking roadway. Time estimated
            by radar.

&&

Local storm report, May 16, 3:37 AM CDT, 3 hours 3 minutes before

Preliminary Local Storm Report
National Weather Service Norman OK
337 AM CDT Thu May 16 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1217 AM     Tstm Wnd Dmg     5 NW Edmond             35.70N 97.55W
05/16/2024                   Oklahoma           OK   Emergency Mngr

            Powerlines in roadway.

&&

Local storm report, May 16, 3:43 AM CDT, 2 hours 57 minutes before

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Special weather statement, May 16, 4:03 AM CDT, 2 hours 37 minutes before

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Special weather statement, May 16, 4:59 AM CDT, 1 hour 41 minutes before

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Special weather statement, May 16, 6:08 AM CDT, 32 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 7:08 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Kay	37 min
May 15, 7:16 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Kay	29 min
May 15, 7:19 PM CDT	Special Weather Statement	OUN	Ellis	26 min
May 15, 7:27 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woodward	48 min
May 15, 7:37 PM CDT	Severe Thunderstorm Warning Destructive damage threat	OUN	Kay	38 min
May 15, 7:42 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woodward	48 min
May 15, 7:57 PM CDT	Areal Flood Advisory	OUN	Ellis, Harper	3 hr
May 15, 8:04 PM CDT	Areal Flood Advisory	OUN	Kay	3 hr
May 15, 8:06 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woodward	39 min
May 15, 8:11 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Kay	17 min
May 15, 8:32 PM CDT	Special Weather Statement	OUN	Woods	28 min
May 15, 8:44 PM CDT	Special Weather Statement	OUN	Woods	31 min
May 15, 9:08 PM CDT	Special Weather Statement	OUN	Woods	37 min
May 15, 9:20 PM CDT	Special Weather Statement	OUN	Alfalfa	25 min
May 15, 10:14 PM CDT	Special Weather Statement	OUN	Grant	31 min
May 15, 10:47 PM CDT	Special Weather Statement	OUN	Grant	28 min
May 15, 11:49 PM CDT	Special Weather Statement	OUN	Kingfisher	26 min
May 15, 11:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Canadian, Kingfisher, Logan, Oklahoma	33 min
May 16, 12:07 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Oklahoma	23 min
May 16, 12:16 AM CDT	Special Weather Statement	OUN	Kay	29 min
May 16, 12:21 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Logan, Oklahoma	39 min
May 16, 12:25 AM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	50 min
May 16, 12:49 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Lincoln, Logan, Oklahoma, Payne	41 min
May 16, 1:30 AM CDT	Special Weather Statement	OUN	Payne	15 min
May 16, 1:57 AM CDT	Special Weather Statement	OUN	Grady	33 min
May 16, 3:28 AM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	47 min
May 16, 4:01 AM CDT	Severe Thunderstorm Warning	OUN	Cotton, Tillman	27 min
May 16, 4:03 AM CDT	Special Weather Statement	OUN	Hughes	42 min
May 16, 4:59 AM CDT	Special Weather Statement	OUN	Caddo	31 min
May 16, 6:01 AM CDT	Areal Flood Advisory	OUN	Caddo, Canadian, Custer, Grady, Washita	3 hr
May 16, 6:44 AM CDT	Special Weather Statement	OUN	Logan	31 min
May 16, 7:06 AM CDT	Special Weather Statement	OUN	Cleveland	24 min
May 16, 7:31 AM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, Grady, McClain, Oklahoma	3 hr
May 16, 6:15 PM CDT	Special Weather Statement	OUN	Garfield	30 min
May 16, 1:59 AM CDT	Special Weather Statement	OUN	Foard	31 min
May 16, 2:51 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Foard, Hardeman	39 min
May 16, 3:17 AM CDT	Special Weather Statement	OUN	Wilbarger	28 min
May 16, 4:37 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Foard, Knox	38 min
May 16, 5:11 AM CDT	Severe Thunderstorm Warning	OUN	Baylor, Foard, Knox	49 min
May 16, 6:08 AM CDT	Special Weather Statement	OUN	Archer	37 min

Nearby

Flash Flood Warnings in Oklahoma, 2024 Every 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.