Alert archive / Oklahoma / Tornado Warnings in 2020

Tornado Warning 16, NWS Norman, OK

April 22, 20204 counties in Oklahoma

NWS Norman, OK issued this tornado warning at Apr 22, 2020, 4:58 PM CDT for 4 counties in Oklahoma. It was in force for 47 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 22, 2020, 4:58 PM CDT (21:58 UTC)
Expired: Apr 22, 2020, 5:45 PM CDT
In force: 47 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Tornado: Radar indicated
Damage threat: Considerable
Hail: 1.75 in

Counties Atoka County, OK, Bryan County, OK, Johnston County, OK, Marshall County, OK

The radar

The Norman radar (KTLX), 150 km from the middle of the area, began a volume at 21:58 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 was reported inside it

Time	Report	Where	Remark
Apr 22, 5:12 PM CDT	TORNADO	Little City, OK	A TORNADO WAS REPORTED NEAR LITTLE CITY.
Apr 22, 5:15 PM CDT	HAIL 2.75	Nida, OK	BASEBALL SIZE HAIL IN NIDA, OK AT 77 AND 22.
Apr 22, 5:32 PM CDT	TORNADO	4 Wnw Armstrong, OK	A LARGE TORNADO DEVELOPED WEST-NORTHWEST OF ARMSTRONG AND MOVED EAST PASSING NORTH AND NORTHEAST OF ARMSTRONG TO AT LEAST 538 PM. HOMES WERE DAMAGED IN THE LAKE DURANT AREA AND NEAR ARMSTRONG.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this tornado warning; the first came 14 minutes after it went out.

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
Apr 22, 2:33 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 10.0 hours before the alert went out and 144 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: 20 J/kg
Mixed-layer CIN: -449 J/kg
Mixed-layer LCL: 1138 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 375 m²/s²
0-3 km storm-relative helicity: 455 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

608 
WFUS54 KOUN 222158
TOROUN
OKC005-013-069-095-222245-
/O.NEW.KOUN.TO.W.0016.200422T2158Z-200422T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Norman OK
458 PM CDT Wed Apr 22 2020

The National Weather Service in Norman has issued a

* Tornado Warning for...
  Southeastern Johnston County in southeastern Oklahoma...
  Northwestern Bryan County in southeastern Oklahoma...
  Northeastern Marshall County in southeastern Oklahoma...
  Southwestern Atoka County in southeastern Oklahoma...

* Until 545 PM CDT.
    
* At 457 PM CDT, a large and extremely dangerous tornado was located
  near Madill, moving east at 30 mph.

  This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

  HAZARD...Damaging tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...You are in a life-threatening situation. Flying debris 
           may be deadly to those caught without shelter. Mobile 
           homes will be destroyed. Considerable damage to homes, 
           businesses, and vehicles is likely and complete 
           destruction is possible.

* Locations impacted include...
  Durant, Madill, Caddo, Silo, Caney, Kenefic, Armstrong, Little
  City, Nida, northeastern Lake Texoma and Oakland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, an extremely dangerous and potentially deadly tornado is
developing. To protect your life, TAKE COVER NOW! Move to a storm
shelter, safe room or an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 3404 9681 3414 9683 3432 9623 3403 9621
TIME...MOT...LOC 2157Z 260DEG 26KT 3409 9674 

TORNADO...RADAR INDICATED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.75IN

$$

..speg.

3 follow-up statements

821 
WWUS54 KOUN 222212
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
512 PM CDT Wed Apr 22 2020

OKC005-013-069-095-222245-
/O.CON.KOUN.TO.W.0016.000000T0000Z-200422T2245Z/
Johnston OK-Bryan OK-Marshall OK-Atoka OK-
512 PM CDT Wed Apr 22 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR
SOUTHEASTERN JOHNSTON...NORTHWESTERN BRYAN...NORTHEASTERN MARSHALL
AND SOUTHWESTERN ATOKA COUNTIES...
    
At 512 PM CDT, a severe thunderstorm with very strong rotation 
capable of producing a tornado was located near Little City, moving 
east at 50 mph. This storm has produced a damaging tornado at Madill.

HAZARD...Tornado and golf ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Durant, Caddo, Silo, Caney, Kenefic, Armstrong, Little City, Nida and
northeastern Lake Texoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter, safe room, or an interior
room on the lowest floor of a sturdy building. Avoid windows. If you
are outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.

&&

LAT...LON 3404 9666 3416 9667 3432 9623 3403 9621
TIME...MOT...LOC 2212Z 265DEG 43KT 3408 9658 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

..speg.

213 
WWUS54 KOUN 222217
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
517 PM CDT Wed Apr 22 2020

OKC005-013-069-095-222245-
/O.CON.KOUN.TO.W.0016.000000T0000Z-200422T2245Z/
Johnston OK-Bryan OK-Marshall OK-Atoka OK-
517 PM CDT Wed Apr 22 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR
SOUTHEASTERN JOHNSTON...NORTHWESTERN BRYAN...NORTHEASTERN MARSHALL
AND SOUTHWESTERN ATOKA COUNTIES...
    
At 517 PM CDT, a confirmed tornado was located 4 miles southwest of
Nida, moving east at 30 mph.

HAZARD...Damaging tornado and golf ball size hail.

SOURCE...Weather spotters confirmed tornado.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Durant, Caddo, Silo, Caney, Kenefic, Armstrong, Little City, Nida and
northeastern Lake Texoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
storm shelter, safe room, or an interior room on the lowest floor of
a sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 3404 9666 3416 9667 3432 9623 3403 9621
TIME...MOT...LOC 2217Z 260DEG 26KT 3409 9653 

TORNADO...OBSERVED
HAIL...1.75IN

$$

..speg.

643 
WWUS54 KOUN 222235 RRA
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
535 PM CDT Wed Apr 22 2020

OKC069-095-222243-
/O.CAN.KOUN.TO.W.0016.000000T0000Z-200422T2245Z/
Johnston OK-Marshall OK-
535 PM CDT Wed Apr 22 2020

...THE TORNADO WARNING FOR SOUTHEASTERN JOHNSTON AND NORTHEASTERN
MARSHALL COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved into 
Bryan and Atoka Counties. Therefore, the warning has been cancelled 
for Johnston and Marshall Counties.

LAT...LON 3403 9621 3405 9644 3415 9644 3423 9623
      3422 9622 3418 9622
TIME...MOT...LOC 2233Z 265DEG 25KT 3408 9637 

$$

OKC005-013-222245-
/O.CON.KOUN.TO.W.0016.000000T0000Z-200422T2245Z/
Bryan OK-Atoka OK-
535 PM CDT Wed Apr 22 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR
NORTHWESTERN BRYAN AND SOUTHERN ATOKA COUNTIES...
    
At 533 PM CDT, a confirmed large tornado was located just 
northwest of Armstrong, moving east-northeast at 30 mph.

HAZARD...Damaging tornado and golf ball size hail.

SOURCE...Weather spotters confirmed tornado.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Caddo, Kenefic and Armstrong. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
storm shelter, safe room, or an interior room on the lowest floor of
a sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 3403 9621 3405 9644 3415 9644 3423 9623
      3422 9622 3418 9622
TIME...MOT...LOC 2233Z 265DEG 25KT 3408 9637 

TORNADO...OBSERVED
HAIL...1.75IN

$$

..speg.

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Apr 22, 1:48 PM CDT, 3 hours 10 minutes earlier.

Area forecast discussion, Apr 22, 1:48 PM CDT, 3 hours 10 minutes before

Area Forecast Discussion
National Weather Service Norman OK
148 PM CDT Wed Apr 22 2020

...New SHORT TERM...

.SHORT TERM...
(This evening through Thursday)
Issued at 120 PM CDT Wed Apr 22 2020

Thunderstorms continue to evolve through the afternoon hours as
the upper low makes its final dig across our area, as well as a
surface boundary/dryline making its eastward push. With the moist
air already in place, mid-level lapse rates will steepen mid-level
temperature lapse rates increasing the MUCAPE to 2000-3000 J/kg
across much of the southern half of our forecast area.
Expecting last round of supercells to begin developing in this
highly unstable and sheared environment, with very large hail
possible. DCAPE values will also be sufficient for severe wind
gusts from these storms, while the shear could support a few
tornados from these storms mainly across southeast Oklahoma.
Expecting the severe storms to have moved into southeast Oklahoma
by the late evening hours. Unfortunately the CAMs still don't seem
to have a good handle with these storms.

&&

.LONG TERM...
(Thursday night through next Tuesday)
Issued at 1244 PM CDT Wed Apr 22 2020

Models show that a disturbance/shortwave will move across the
central/southern Plains bringing a chance for showers and storms
Thursday night into Friday. Models also show a sfc low and cold
front moving across the area during this time. Rain chances will end
Fri afternoon/evening as the upper system moves east of the area.

Models show generally NW upper flow over the weekend and through
next week, especially next week as the upper ridge builds over the
western U.S. Disturbances moving through this flow could bring a
chance for rain at times. Right now, it looks like showers and
storms will be possible early next week with the most potential
Tuesday as a cold front moves across the fa.

Generally, near but below average temperatures are expected Friday
and over the weekend. Above average temperatures are then expected
much of next week.

&&

.AVIATION...
(18Z TAFS)
Issued at 1248 PM CDT Wed Apr 22 2020

Thunderstorm system coming through will maintain low ceilings
across much of our terminals at least through 00Z, maintaining
mostly MVFR to brief periods of IFR conditions and lowered
visibilities. Expecting conditions to improve to VFR conditions
after 00Z as ceiling lift and the storm system pushes off to
eastern Oklahoma.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  53  79  56  70 /  30   0  30  40
Hobart OK         52  81  54  73 /  10   0  20  20
Wichita Falls TX  55  83  59  76 /  10   0  10  10
Gage OK           47  81  50  72 /  10   0  30  30
Ponca City OK     53  76  54  69 /  50   0  40  60
Durant OK         57  79  57  77 /  70   0  10  30

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch until 10 PM CDT this evening for OKZ006>008-011>013-
     020.

TX...None.
&&

SHORT TERM...68
LONG TERM....25
AVIATION...68

Hazardous weather outlook, Apr 22, 3:58 PM CDT, 1 hour before

Hazardous Weather Outlook...UPDATED
National Weather Service Norman OK
358 PM CDT Wed Apr 22 2020

OKZ004>048-050>052-TXZ083>090-231000-
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-
358 PM CDT Wed Apr 22 2020

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

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

.Thunderstorms...
Severe thunderstorms will be most numerous, and much stronger,
across south-central and southeast Oklahoma. This includes areas
such as Ardmore, Ada, Tishomingo, Durant, and Atoka. Hail up to
baseball size and the threat of tornadoes will exist through early
evening. Farther north in Oklahoma, there is primarily a large
hail concern through the early evening hours, with hail up to
golfball size possible.

Storm movement will be east at about 40 mph.

.Heavy Rainfall and Flooding...
Localized flooding is possible in areas where multiple storms
occur. This is most likely across areas near and east of
Interstate-35.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

.Thunderstorms...
Thunderstorms will be possible Thursday night into Friday. The
chance of severe storms is low.

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, Apr 22, 3:51 PM CDT, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
351 PM CDT WED APR 22 2020

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

0347 PM     HAIL             4 S RUSH SPRINGS        34.72N 97.96W
04/22/2020  M1.00 INCH       GRADY              OK   TRAINED SPOTTER

&&

Special weather statement, Apr 22, 3:56 PM CDT, 1 hour 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
356 PM CDT Wed Apr 22 2020

OKZ018-019-024-025-222130-
Kingfisher OK-Oklahoma OK-Logan OK-Canadian OK-
356 PM CDT Wed Apr 22 2020

...SIGNIFICANT WEATHER ADVISORY FOR southeastern Kingfisher...
northwestern Oklahoma...southwestern Logan and northeastern Canadian
Counties Until 430 PM CDT...

AT 354 PM CDT, a strong thunderstorm was located 4 miles northeast of
Piedmont, moving east at 25 MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...

Locations impacted include...
Northwestern Oklahoma City, Edmond, Guthrie, Yukon, The Village,
Piedmont, Arcadia, Navina, Seward and Downtown Edmond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3554 9779 3572 9779 3591 9741 3577 9731
      3563 9728
TIME...MOT...LOC 2054Z 248DEG 23KT 3568 9767

Mahale

Special weather statement, Apr 22, 3:58 PM CDT, 1 hour before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
358 PM CDT Wed Apr 22 2020

OKZ028>030-040-222130-
Pottawatomie OK-Garvin OK-Cleveland OK-McClain OK-
358 PM CDT Wed Apr 22 2020

...SIGNIFICANT WEATHER ADVISORY FOR southwestern Pottawatomie...north
central Garvin...southeastern Cleveland and south central McClain
Counties Until 430 PM CDT...

AT 357 PM CDT, a strong thunderstorm was located 4 miles north of
Maysville, moving east at 25 MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...

Locations impacted include...
Purcell, Lexington, Wayne, Byars, Rosedale and Payne.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3482 9750 3493 9754 3508 9717 3484 9705
TIME...MOT...LOC 2057Z 248DEG 21KT 3487 9742

Mahale

Local storm report, Apr 22, 4:29 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
429 PM CDT WED APR 22 2020

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

0423 PM     TORNADO          1 NE SPRINGER           34.32N 97.13W
04/22/2020                   CARTER             OK   BROADCAST MEDIA

&&

Local storm report, Apr 22, 4:36 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
436 PM CDT WED APR 22 2020

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

0417 PM     TORNADO          7 SW PAULS VALLEY       34.67N 97.31W
04/22/2020                   GARVIN             OK   STORM CHASER

&&

Local storm report, Apr 22, 4:49 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
449 PM CDT WED APR 22 2020

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

0446 PM     HAIL             7 NNW MILL CREEK        34.50N 96.87W
04/22/2020  M0.50 INCH       JOHNSTON           OK   PUBLIC

            MPING.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 21, 7:09 PM CDT	Special Weather Statement	OUN	Washita	36 min
Apr 21, 7:15 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	60 min
Apr 21, 7:24 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Washita	66 min
Apr 21, 7:32 PM CDT	Special Weather Statement	OUN	Beckham	28 min
Apr 21, 7:33 PM CDT	Special Weather Statement	OUN	Caddo	27 min
Apr 21, 7:40 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady	50 min
Apr 21, 7:56 PM CDT	Special Weather Statement	OUN	Beckham	34 min
Apr 21, 8:06 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Roger Mills, Washita	39 min
Apr 21, 8:13 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Roger Mills	62 min
Apr 21, 8:17 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Custer, Washita	58 min
Apr 21, 8:18 PM CDT	Tornado Warning	OUN	Beckham, Custer, Washita	19 min
Apr 21, 8:24 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady	51 min
Apr 21, 8:28 PM CDT	Special Weather Statement	OUN	Greer	32 min
Apr 21, 8:34 PM CDT	Areal Flood Advisory	OUN	Caddo, Washita	3 hr
Apr 21, 8:40 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Roger Mills, Washita	50 min
Apr 21, 8:45 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	45 min
Apr 21, 8:50 PM CDT	Areal Flood Advisory	OUN	Beckham, Custer, Roger Mills, Washita	3 hr
Apr 21, 9:04 PM CDT	Special Weather Statement	OUN	Greer	26 min
Apr 21, 9:08 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Grady	67 min
Apr 21, 9:17 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	43 min
Apr 21, 9:20 PM CDT	Severe Thunderstorm Warning	OUN	Washita	40 min
Apr 21, 9:33 PM CDT	Special Weather Statement	OUN	Kiowa	27 min
Apr 21, 9:46 PM CDT	Severe Thunderstorm Warning	OUN	Kiowa	44 min
Apr 21, 9:54 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Kiowa, Washita	66 min
Apr 21, 9:56 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Kiowa, Washita	64 min
Apr 21, 10:01 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Grady	44 min
Apr 21, 10:06 PM CDT	Areal Flood Advisory	OUN	Washita	3 hr
Apr 21, 10:18 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Kiowa	42 min
Apr 21, 10:30 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Grady	45 min
Apr 21, 10:39 PM CDT	Special Weather Statement	OUN	Roger Mills	36 min
Apr 21, 10:49 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Kiowa	56 min
Apr 21, 10:54 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Grady, Stephens	66 min
Apr 21, 11:00 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Grady, McClain	45 min
Apr 21, 11:09 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Tillman	51 min
Apr 21, 11:28 PM CDT	Tornado Warning	OUN	Comanche, Grady, Stephens	32 min
Apr 21, 11:39 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain	26 min
Apr 21, 11:43 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Kiowa	62 min
Apr 21, 11:47 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Jefferson, Stephens	43 min
Apr 21, 11:48 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Grady, Stephens	57 min
Apr 21, 11:53 PM CDT	Tornado Warning	OUN	Stephens	52 min
Apr 22, 12:04 AM CDT	Severe Thunderstorm Warning	OUN	Dewey	41 min
Apr 22, 12:14 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Grady, Stephens	31 min
Apr 22, 12:16 AM CDT	Tornado Warning	OUN	Carter, Garvin, Murray, Stephens	27 min
Apr 22, 12:26 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray, Stephens	64 min
Apr 22, 12:33 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Stephens	57 min
Apr 22, 12:44 AM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, Stephens	46 min
Apr 22, 1:10 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Murray	50 min
Apr 22, 1:24 AM CDT	Areal Flood Advisory	OUN	Carter, Garvin, Murray	3 hr
Apr 22, 1:26 AM CDT	Special Weather Statement	OUN	Garvin	34 min
Apr 22, 1:26 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Stephens	49 min
Apr 22, 1:49 AM CDT	Flash Flood Warning	OUN	Carter, Murray	3 hr
Apr 22, 1:50 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan, Johnston	70 min
Apr 22, 2:00 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray	45 min
Apr 22, 2:06 AM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	25 hr
Apr 22, 2:14 AM CDT	Special Weather Statement	OUN	Johnston	31 min
Apr 22, 2:24 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan, Johnston	51 min
Apr 22, 2:34 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Marshall	41 min
Apr 22, 2:57 AM CDT	Severe Thunderstorm Warning	OUN	Atoka	18 min
Apr 22, 3:12 AM CDT	Severe Thunderstorm Warning	OUN	Bryan, Johnston, Marshall	29 min
Apr 22, 3:58 AM CDT	Special Weather Statement	OUN	Woods	32 min
Apr 22, 4:28 AM CDT	Special Weather Statement	OUN	Ellis	32 min
Apr 22, 4:34 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills, Woodward	41 min
Apr 22, 4:48 AM CDT	Special Weather Statement	OUN	Alfalfa	27 min
Apr 22, 4:49 AM CDT	Special Weather Statement	OUN	Garfield	26 min
Apr 22, 4:53 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant, Woods	52 min
Apr 22, 5:03 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Major	42 min
Apr 22, 5:09 AM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Woodward	51 min
Apr 22, 5:21 AM CDT	Special Weather Statement	OUN	Kingfisher	24 min
Apr 22, 5:22 AM CDT	Special Weather Statement	OUN	Atoka, Coal	38 min
Apr 22, 5:32 AM CDT	Flood Watch	OUN	Alfalfa, Garfield, Grant, Kay, Major, Noble and 1 more	13 hr
Apr 22, 5:41 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant, Kay, Logan, Noble and 1 more	49 min
Apr 22, 5:52 AM CDT	Severe Thunderstorm Warning	OUN	Harper, Major, Woods, Woodward	53 min
Apr 22, 6:23 AM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble, Payne	52 min
Apr 22, 6:46 AM CDT	Special Weather Statement	OUN	Woods	29 min
Apr 22, 7:15 AM CDT	Special Weather Statement	OUN	Kay	30 min
Apr 22, 7:33 AM CDT	Special Weather Statement	OUN	Kay	27 min
Apr 22, 7:58 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Grady	47 min
Apr 22, 8:00 AM CDT	Special Weather Statement	OUN	Kay	30 min
Apr 22, 8:19 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Kiowa, Tillman	41 min
Apr 22, 8:22 AM CDT	Special Weather Statement	OUN	Atoka	38 min

Nearby

Tornado Warnings in Oklahoma, 2020 Every tornado warning in 2020 Tornadoes in 2020

Sources

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