Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 245, NWS Norman, OK

May 27, 2021Lincoln County, Payne County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 27, 2021, 3:30 PM CDT for Lincoln County, Payne County, Oklahoma. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 27, 2021, 3:30 PM CDT (20:30 UTC)
Expired: May 27, 2021, 4:00 PM CDT
In force: 30 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Lincoln County, OK, Payne County, OK

The radar

The Norman radar (KTLX), 62 km from the middle of the area, began a volume at 20:31 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 27, 11:58 AM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 8.5 hours before the alert went out and 79 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: 2431 J/kg
Mixed-layer CIN: -121 J/kg
Mixed-layer LCL: 765 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 264 m²/s²
0-3 km storm-relative helicity: 360 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 7.5

Open this sounding in Storm Lab

The text

As transmitted.

667 
WUUS54 KOUN 272030
SVROUN
OKC081-119-272100-
/O.NEW.KOUN.SV.W.0245.210527T2030Z-210527T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
330 PM CDT Thu May 27 2021

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Central Lincoln County in central Oklahoma...
  Southeastern Payne County in central Oklahoma...

* Until 400 PM CDT.

* At 329 PM CDT, severe thunderstorms were located along a line
  extending from 3 miles southeast of Cushing to near Davenport,
  moving east at 40 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Cushing, Chandler, Stroud, Davenport, Wellston, Carney, Tryon,
  Agra, Warwick, Kendrick, Avery and Parkland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3564 9711 3601 9691 3604 9662 3560 9662
TIME...MOT...LOC 2029Z 268DEG 35KT 3594 9671 3570 9679 

HAIL...1.50IN
WIND...60MPH
 
$$

..speg.

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at May 27, 2:25 PM CDT, 1 hour 5 minutes earlier.

Area forecast discussion, May 27, 2:25 PM CDT, 1 hour 5 minutes before

Area Forecast Discussion
National Weather Service Norman OK
225 PM CDT Thu May 27 2021

...New SHORT TERM, LONG TERM, UPPER AIR...

.SHORT TERM...
(This evening through Friday)
Issued at 224 PM CDT Thu May 27 2021

Strong to severe thunderstorms will continue into the evening
across most of the area as a cold front moves into minimally-
capped environment (per 18Z special upper air sounding). The
ongoing storms could push out an outflow boundary or two, which
could lead to slight enhancement of a tornado threat if any storms
can form along it, as winds ahead of the boundary could be backed
slightly. Currently, as storms form along the aforementioned cold
front later this afternoon, there may be a brief window for some
discrete storms. The deep-layer shear vector being mostly
parallel to the boundary will foster storm conglomeration shortly
after initiation, and eventually forming into a line that will
move through west-central and central OK. The main threats still
appear to be damaging winds in excess of 80mph and hail up to the
size of baseballs, as SPC mesoanalysis suggests there is at least
MLCAPE values upwards of at least 3000 J/kg across the area. With
numerous storms producing heavy rain rates across areas with
already moist soils, flooding and flash flooding could be possible
across central OK into northern and northeast OK.

Bunker

&&

.LONG TERM...
(Friday night through next Wednesday)
Issued at 224 PM CDT Thu May 27 2021

Over the weekend mid-level heights will gradually increase as an
approaching mid-level ridge moves into the area. Showers and
thunderstorms are possible on Sunday as a shortwave trough
traverses the area and attendant upslope flow along the Rockies.
Another shortwave should move through on Monday morning, bringing
with it additional chances for showers and storms. A longwave
trough will move in by Tuesday morning and an associated cold
front will bring in showers and storms across the area. Northerly
surface flow should persist through much of the long term, with
slight chances for showers and storms. High temperatures should
stay in the mid to upper 70s across most of the area throughout
the period.

Bunker

&&

.AVIATION...
(18Z TAFS)
Issued at 1127 AM CDT Thu May 27 2021

Two rounds of showers and thunderstorms will be possible
throughout the period. The first round of storms will start around
17Z and will initiate in western OK, and move towards the east
into central OK. The next round will be later this afternoon
associated with a cold front that will sweep through the area.
These storms will move from the north to the south. Otherwise,
some MVFR ceilings are possible through the period, along with a
wind shift associated with the cold front. Some sites could see
some IFR ceilings associated with the aforementioned
thunderstorms.

&&

.UPPER AIR...
Issued at 224 PM CDT Thu May 27 2021

An Upper Air flight is planned later this evening if time permits..

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  59  72  54  72 /  90   0  10  10
Hobart OK         60  75  56  74 /  70  10  10  10
Wichita Falls TX  65  77  60  76 /  80  30  30  20
Gage OK           53  72  53  73 /  10  10  10  10
Ponca City OK     53  72  50  72 /  50   0   0   0
Durant OK         66  80  59  75 /  90  30  20  10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch until 1 AM CDT Friday for OKZ008-012-013-018>020-
     024>031.

TX...None.
&&

SHORT TERM...13
LONG TERM....13
AVIATION...13

Hazardous weather outlook, May 27, 11:41 AM CDT, 3 hours 49 minutes before

Hazardous Weather Outlook
National Weather Service Norman OK
1141 AM CDT Thu May 27 2021

OKZ004>048-050>052-TXZ083>090-281645-
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-
1141 AM CDT Thu May 27 2021

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

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

.Thunderstorms...
There is an enhanced risk for severe thunderstorms Thursday
afternoon and evening across most of Oklahoma into parts of
western north Texas. Two rounds of storms are possible this
afternoon. The first round is likely to start around the early
afternoon and move from western OK into central OK. Later in the
afternoon, storms will fire along a cold front in northern OK and
move south across the area. Large hail up to the size of baseballs
and damaging winds up to 80 mph will be the main threats, though
during the early evening there will also be a low tornado risk.

.Heavy Rainfall...
Localized heavy rainfall and flooding will be possible late on
Thursday, mainly across central and southern Oklahoma and north
Texas.

.SPOTTER AND EMERGENCY MANAGEMENT STATEMENT...

Storm spotter groups and emergency management personnel across
Oklahoma and western north Texas should prepare for severe
weather operations this afternoon and evening.

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

.Thunderstorms...
Friday and Saturday will see thunderstorm chances across mainly
southern Oklahoma and north Texas. More widespread chances for
showers and storms will return Sunday through Wednesday of next
week.

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 27, 2:10 PM CDT, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
210 PM CDT THU MAY 27 2021

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

0206 PM     TSTM WND GST     CRESCENT                35.95N 97.60W
05/27/2021  M70 MPH          LOGAN              OK   BROADCAST MEDIA

            ESTIMATED WIND GUST.

&&

Special weather statement, May 27, 2:17 PM CDT, 1 hour 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
217 PM CDT Thu May 27 2021

OKZ007-008-012-013-272000-
Garfield OK-Kay OK-Grant OK-Noble OK-
217 PM CDT Thu May 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR northern Garfield...Kay...Grant
and northern Noble Counties Until 300 PM CDT...

AT 216 PM CDT, strong thunderstorms were along a line extending from
6 miles north of Deer Creek to 3 miles south of Billings, moving
northeast at 35 MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...
Minor flooding in areas of poor drainage...

LAT...LON 3669 9698 3670 9704 3668 9706 3660 9704
      3659 9706 3658 9702 3659 9696 3654 9695
      3653 9699 3651 9701 3651 9703 3648 9703
      3637 9771 3655 9804 3686 9793 3700 9757
      3700 9704
TIME...MOT...LOC 1916Z 246DEG 32KT 3690 9751 3648 9743

JT

Local storm report, May 27, 2:32 PM CDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
232 PM CDT THU MAY 27 2021

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

0215 PM     TSTM WND DMG     GUTHRIE                 35.88N 97.42W
05/27/2021                   LOGAN              OK   BROADCAST MEDIA

            LARGE TREE LIMBS DOWNED OVER ROADWAY.

0225 PM     FLASH FLOOD      KINGFISHER              35.86N 97.93W
05/27/2021                   KINGFISHER         OK   BROADCAST MEDIA

            ROUGHLY A FOOT OF WATER OVER ROADWAYS IN
            KINGFISHER.

&&

Local storm report, May 27, 2:49 PM CDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
249 PM CDT THU MAY 27 2021

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

0236 PM     FLASH FLOOD      3 NW KINGFISHER         35.89N 97.97W
05/27/2021                   KINGFISHER         OK   TRAINED SPOTTER

            WATER RUNNING OVER MULTIPLE ROADWAYS.

0245 PM     FLASH FLOOD      KINGFISHER              35.86N 97.93W
05/27/2021                   KINGFISHER         OK   BROADCAST MEDIA

            VIDEO OF A CAR STRANDED IN ONE TO TWO FEET
            OF WATER NEAR CENTER OF TOWN.

&&

Special weather statement, May 27, 3:11 PM CDT, 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
311 PM CDT Thu May 27 2021

OKZ019-025-026-272030-
Oklahoma OK-Logan OK-Lincoln OK-
311 PM CDT Thu May 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR northeastern Oklahoma...
southeastern Logan and west central Lincoln Counties Until 330 PM
CDT...

AT 309 PM CDT, a strong thunderstorm was located near Luther, moving
northeast at 25 MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...

LAT...LON 3560 9714 3571 9730 3580 9717 3570 9698
TIME...MOT...LOC 2009Z 231DEG 22KT 3569 9717

JT

Local storm report, May 27, 3:28 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
328 PM CDT THU MAY 27 2021

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

0130 PM     TSTM WND DMG     DOVER                   35.98N 97.91W
05/27/2021                   KINGFISHER         OK   BROADCAST MEDIA

            DAMAGE TO A MOBILE HOME.

&&

RCB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 7:27 PM CDT	Special Weather Statement	OUN	Harper	33 min
May 26, 7:45 PM CDT	Special Weather Statement	OUN	Harper	30 min
May 26, 8:13 PM CDT	Severe Thunderstorm Warning	OUN	Harper	47 min
May 26, 8:51 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	39 min
May 26, 9:16 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	44 min
May 26, 9:56 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Ellis, Harper, Woods, Woodward	49 min
May 26, 10:41 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant, Woods, Woodward	49 min
May 26, 11:24 PM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay	51 min
May 27, 1:37 AM CDT	Special Weather Statement	OUN	Beckham	23 min
May 27, 2:07 AM CDT	Special Weather Statement	OUN	Beckham	38 min
May 27, 3:28 AM CDT	Special Weather Statement	OUN	Blaine, Custer, Dewey	62 min
May 27, 4:27 AM CDT	Special Weather Statement	OUN	Blaine, Garfield, Kingfisher, Logan, Major	63 min
May 27, 6:39 AM CDT	Special Weather Statement	OUN	Garfield, Noble	36 min
May 27, 10:28 AM CDT	Flood Watch	OUN	Canadian, Cleveland, Garfield, Grady, Kay, Kingfisher and 8 more	12 hr
May 27, 11:56 AM CDT	Special Weather Statement	OUN	Kingfisher	34 min
May 27, 12:00 PM CDT	Special Weather Statement	OUN	Blaine	30 min
May 27, 12:11 PM CDT	Special Weather Statement	OUN	Dewey	34 min
May 27, 12:14 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan	46 min
May 27, 12:23 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey	52 min
May 27, 12:29 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Garfield, Kingfisher	46 min
May 27, 12:35 PM CDT	Special Weather Statement	OUN	Kay	25 min
May 27, 12:39 PM CDT	Areal Flood Advisory	OUN	Blaine, Garfield, Kingfisher, Logan	3 hr
May 27, 12:40 PM CDT	Special Weather Statement	OUN	Garfield	35 min
May 27, 12:48 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Noble	42 min
May 27, 12:51 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Garfield, Kingfisher	39 min
May 27, 12:58 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan, Noble, Payne	47 min
May 27, 1:01 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant, Major, Noble	44 min
May 27, 1:08 PM CDT	Special Weather Statement	OUN	Alfalfa, Grant	37 min
May 27, 1:14 PM CDT	Tornado Warning	OUN	Kingfisher	46 min
May 27, 1:17 PM CDT	Special Weather Statement	OUN	Woodward	28 min
May 27, 1:23 PM CDT	Severe Thunderstorm Warning	OUN	Major, Woods, Woodward	39 min
May 27, 1:25 PM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	36 min
May 27, 1:29 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan	46 min
May 27, 1:30 PM CDT	Areal Flood Advisory	OUN	Garfield, Grant, Kay, Noble	3 hr
May 27, 1:41 PM CDT	Flash Flood Warning	OUN	Blaine, Kingfisher, Logan	4 hr
May 27, 1:42 PM CDT	Severe Thunderstorm Warning	OUN	Noble, Payne	17 min
May 27, 1:47 PM CDT	Severe Thunderstorm Warning	OUN	Kingfisher, Logan	43 min
May 27, 1:50 PM CDT	Special Weather Statement	OUN	Garfield, Grant, Kay	25 min
May 27, 1:59 PM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	15 hr
May 27, 2:03 PM CDT	Special Weather Statement	OUN	Major	27 min
May 27, 2:15 PM CDT	Severe Thunderstorm Warning	OUN	Kingfisher, Logan, Payne	45 min
May 27, 2:17 PM CDT	Special Weather Statement	OUN	Grant, Kay	43 min
May 27, 2:34 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Payne	56 min
May 27, 2:40 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Major	50 min
May 27, 2:46 PM CDT	Flash Flood Warning	OUN	Lincoln, Logan, Oklahoma, Payne	3 hr
May 27, 2:51 PM CDT	Areal Flood Advisory	OUN	Canadian, Kingfisher, Logan, Oklahoma	3 hr
May 27, 2:51 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan	39 min
May 27, 3:11 PM CDT	Special Weather Statement	OUN	Lincoln	19 min
May 27, 3:18 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Logan, Noble, Payne	42 min
May 27, 3:21 PM CDT	Areal Flood Advisory	OUN	Lincoln, Payne	3 hr
May 27, 3:27 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Major	48 min
May 27, 3:27 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Lincoln, Logan, Oklahoma, Payne	48 min
May 27, 3:34 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan, Noble, Payne	41 min
May 27, 3:39 PM CDT	Flash Flood Warning	OUN	Garfield, Kingfisher, Logan, Major, Noble, Payne	2 hr
May 27, 3:42 PM CDT	Special Weather Statement	OUN	Noble	33 min
May 27, 3:46 PM CDT	Special Weather Statement	OUN	Logan	29 min
May 27, 3:51 PM CDT	Severe Thunderstorm Warning	OUN	Logan	24 min
May 27, 3:53 PM CDT	Severe Thunderstorm Warning	OUN	Noble	37 min
May 27, 3:56 PM CDT	Special Weather Statement	OUN	Oklahoma	19 min
May 27, 4:03 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan	27 min
May 27, 4:10 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Oklahoma, Payne	65 min
May 27, 4:15 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey, Garfield, Kingfisher, Major	45 min
May 27, 4:24 PM CDT	Severe Thunderstorm Warning	OUN	Logan, Noble, Payne	38 min
May 27, 4:38 PM CDT	Special Weather Statement	OUN	Kingfisher	7 min
May 27, 4:53 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan	37 min
May 27, 4:56 PM CDT	Areal Flood Advisory	OUN	Blaine, Kingfisher	3 hr
May 27, 4:56 PM CDT	Special Weather Statement	OUN	Lincoln	19 min
May 27, 4:56 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Garfield, Kingfisher, Logan, Major	49 min
May 27, 5:00 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Oklahoma	45 min
May 27, 5:19 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Lincoln, Logan, Oklahoma	41 min
May 27, 5:25 PM CDT	Flash Flood Warning Considerable damage threat	OUN	Canadian, Kingfisher, Lincoln, Logan, Oklahoma	3 hr
May 27, 5:31 PM CDT	Special Weather Statement	OUN	Canadian	29 min
May 27, 5:47 PM CDT	Flash Flood Warning	OUN	Kingfisher, Logan	106 min
May 27, 5:52 PM CDT	Severe Thunderstorm Warning	OUN	Kingfisher, Logan	38 min
May 27, 6:00 PM CDT	Flash Flood Warning	OUN	Canadian, Lincoln, Oklahoma, Pottawatomie	3 hr
May 27, 6:03 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, Lincoln, McClain, Oklahoma and 2 more	42 min
May 27, 6:14 PM CDT	Special Weather Statement	OUN	Washita	31 min
May 27, 6:21 PM CDT	Flash Flood Warning Considerable damage threat	OUN	Canadian, Cleveland, Oklahoma	3 hr
May 27, 6:39 PM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, Grady, McClain	111 min
May 27, 6:48 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Washita	15 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2021 Every severe thunderstorm warning in 2021

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.