Alert archive / Oklahoma / Tornado Warnings in 2021

Tornado Warning 40, NWS Norman, OK

October 13, 2021Canadian County, Oklahoma County, Oklahoma

NWS Norman, OK issued this tornado warning at Oct 13, 2021, 5:07 AM CDT for Canadian County, Oklahoma County, Oklahoma. It was in force for 23 min. 2 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: Oct 13, 2021, 5:07 AM CDT (10:07 UTC)
Expired: Oct 13, 2021, 5:30 AM CDT
In force: 23 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Canadian County, OK, Oklahoma County, OK

The radar

The Norman radar (KTLX), 30 km from the middle of the area, began a volume at 10:09 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
Oct 13, 5:15 AM CDT	TORNADO	3 W Oklahoma City, OK	AN EF1 TORNADO MOVED FROM SOUTHWEST OF NORTHWEST 10TH STREET AND VILLA AVENUA TO NEAR INTERSTATE 235 AND NORTHEAST 21ST STREET.
Oct 13, 5:23 AM CDT	TORNADO	4 Ne Oklahoma City, OK	AN EF0 TORNADO PRODUCED SPORADIC TREE DAMAGE IN FOREST PARK AND NORTHEAST OKLAHOMA CITY FROM NEAR NORTHEAST 36TH STREET AND BRYANT AVENUE TO WEST OF NORTHEAST 50TH STREET AND MIDWEST BOULEVARD.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Oct 12, 11:05 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 10.1 hours before the alert went out and 32 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: 496 J/kg
Mixed-layer CIN: -164 J/kg
Mixed-layer LCL: 662 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 331 m²/s²
0-3 km storm-relative helicity: 372 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.5

Open this sounding in Storm Lab

The text

As transmitted.

447 
WFUS54 KOUN 131007
TOROUN
OKC017-109-131030-
/O.NEW.KOUN.TO.W.0040.211013T1007Z-211013T1030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Norman OK
507 AM CDT Wed Oct 13 2021

The National Weather Service in Norman has issued a

* Tornado Warning for...
  Central Oklahoma County in central Oklahoma...
  East central Canadian County in central Oklahoma...

* Until 530 AM CDT.
    
* At 506 AM CDT, a severe thunderstorm capable of producing a tornado
  was located over western Oklahoma City, or 4 miles northeast of
  Mustang, moving east at 55 mph.

  HAZARD...Tornado.

  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...
  Oklahoma City, southeastern Edmond, Midwest City, Del City,
  Bethany, Mustang, Choctaw, Warr Acres, The Village, Harrah,
  Spencer, Nichols Hills, Jones, Nicoma Park, Arcadia, Forest Park,
  Woodlawn Park, Lake Aluma and Smith Village.

This includes the following highways...
 Interstate 35 between mile markers 125 and 140.
 Interstate 40 between mile markers 138 and 156.
 Interstate 44 between mile markers 117 and 143.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3538 9773 3545 9777 3568 9733 3548 9721
TIME...MOT...LOC 1006Z 249DEG 49KT 3544 9767 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Zwink

2 follow-up statements

491 
WWUS54 KOUN 131014
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
514 AM CDT Wed Oct 13 2021

OKC017-131023-
/O.CAN.KOUN.TO.W.0040.000000T0000Z-211013T1030Z/
Canadian OK-
514 AM CDT Wed Oct 13 2021

...THE TORNADO WARNING FOR EAST CENTRAL CANADIAN COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3541 9764 3547 9767 3549 9767 3568 9733
      3548 9721
TIME...MOT...LOC 1013Z 249DEG 49KT 3547 9758 

$$

OKC109-131030-
/O.CON.KOUN.TO.W.0040.000000T0000Z-211013T1030Z/
Oklahoma OK-
514 AM CDT Wed Oct 13 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 AM CDT FOR CENTRAL
OKLAHOMA COUNTY...
    
At 513 AM CDT, a severe thunderstorm capable of producing a tornado
was located over western Oklahoma City, or over The Fairgrounds,
moving east at 55 mph.

HAZARD...Tornado.

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...
Oklahoma City, southeastern Edmond, Midwest City, Del City, Bethany,
Choctaw, Warr Acres, Harrah, Spencer, Nichols Hills, Jones, Nicoma
Park, Arcadia, Forest Park, Lake Aluma and Smith Village.

This includes the following highways...
 Interstate 35 between mile markers 125 and 140.
 Interstate 40 between mile markers 142 and 156.
 Interstate 44 between mile markers 117 and 143.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3541 9764 3547 9767 3549 9767 3568 9733
      3548 9721
TIME...MOT...LOC 1013Z 249DEG 49KT 3547 9758 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Zwink

584 
WWUS54 KOUN 131020
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
520 AM CDT Wed Oct 13 2021

OKC109-131030-
/O.CON.KOUN.TO.W.0040.000000T0000Z-211013T1030Z/
Oklahoma OK-
520 AM CDT Wed Oct 13 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 AM CDT FOR CENTRAL
OKLAHOMA COUNTY...
    
At 520 AM CDT, a severe thunderstorm capable of producing a tornado
was located over northern Oklahoma City, or near The Capitol, moving
east at 55 mph.

HAZARD...Tornado.

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...
Oklahoma City, southeastern Edmond, Midwest City, Del City, Choctaw,
Harrah, Spencer, Jones, Nicoma Park, Arcadia, Forest Park and Lake
Aluma.

This includes the following highways...
 Interstate 35 between mile markers 127 and 139.
 Interstate 40 between mile markers 149 and 154.
 Interstate 44 between mile markers 124 and 143.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3545 9754 3551 9757 3568 9733 3548 9721
TIME...MOT...LOC 1020Z 249DEG 49KT 3550 9749 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Zwink

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 12, 7:12 PM CDT	Tornado Warning	OUN	Washita	14 min
Oct 12, 7:19 PM CDT	Special Weather Statement	OUN	Tillman	26 min
Oct 12, 7:24 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Custer, Washita	51 min
Oct 12, 7:40 PM CDT	Tornado Warning	OUN	Comanche, Kiowa, Tillman	50 min
Oct 12, 8:02 PM CDT	Tornado Warning Tornado observed	OUN	Blaine, Custer, Dewey	43 min
Oct 12, 8:12 PM CDT	Tornado Warning	OUN	Comanche, Kiowa, Tillman	48 min
Oct 12, 8:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Blaine, Custer, Dewey	49 min
Oct 12, 8:46 PM CDT	Tornado Warning	OUN	Blaine, Custer, Dewey	44 min
Oct 12, 8:53 PM CDT	Tornado Warning	OUN	Caddo, Comanche, Kiowa, Washita	52 min
Oct 12, 9:43 PM CDT	Tornado Warning	OUN	Caddo	32 min
Oct 12, 10:49 PM CDT	Special Weather Statement	OUN	Canadian	41 min
Oct 12, 10:58 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Ellis, Harper, Woods, Woodward	77 min
Oct 13, 12:14 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Ellis, Harper, Woods, Woodward	61 min
Oct 13, 12:38 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Ellis, Roger Mills, Woodward	67 min
Oct 13, 1:14 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Major, Woods, Woodward	61 min
Oct 13, 1:44 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Dewey, Roger Mills	46 min
Oct 13, 2:02 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Alfalfa, Woods	29 min
Oct 13, 2:06 AM CDT	Special Weather Statement	OUN	Beckham	24 min
Oct 13, 2:23 AM CDT	Special Weather Statement	OUN	Dewey, Major	37 min
Oct 13, 2:29 AM CDT	Special Weather Statement	OUN	Beckham	31 min
Oct 13, 2:58 AM CDT	Special Weather Statement	OUN	Alfalfa, Blaine, Dewey, Grant, Major	47 min
Oct 13, 3:00 AM CDT	Special Weather Statement	OUN	Custer, Greer, Harmon, Jackson, Washita	45 min
Oct 13, 3:35 AM CDT	Special Weather Statement	OUN	Garfield, Grant, Kingfisher	25 min
Oct 13, 3:41 AM CDT	Special Weather Statement	OUN	Caddo, Kiowa, Tillman	34 min
Oct 13, 3:56 AM CDT	Special Weather Statement	OUN	Garfield, Kay, Kingfisher, Noble	49 min
Oct 13, 4:11 AM CDT	Special Weather Statement	OUN	Caddo, Canadian	49 min
Oct 13, 4:25 AM CDT	Severe Thunderstorm Warning	OUN	Kay	39 min
Oct 13, 4:41 AM CDT	Special Weather Statement	OUN	Tillman	49 min
Oct 13, 4:45 AM CDT	Special Weather Statement	OUN	Logan, Noble, Payne	45 min
Oct 13, 4:59 AM CDT	Special Weather Statement	OUN	Cleveland, Comanche, Grady, Oklahoma	46 min
Oct 13, 5:27 AM CDT	Tornado Warning	OUN	Oklahoma	18 min
Oct 13, 5:31 AM CDT	Special Weather Statement	OUN	Lincoln, Payne	29 min
Oct 13, 5:41 AM CDT	Special Weather Statement	OUN	Cleveland, Grady, McClain, Oklahoma, Stephens	49 min
Oct 13, 5:44 AM CDT	Tornado Warning	OUN	Lincoln, Logan, Oklahoma	18 min
Oct 13, 5:59 AM CDT	Special Weather Statement	OUN	Lincoln	46 min
Oct 13, 6:06 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, Grady, McClain	24 min
Oct 13, 6:27 AM CDT	Special Weather Statement	OUN	Garvin, Lincoln, Pottawatomie	33 min
Oct 13, 6:44 AM CDT	Areal Flood Advisory	OUN	Cleveland, Oklahoma	2 hr
Oct 13, 6:55 AM CDT	Special Weather Statement	OUN	Pontotoc, Seminole	50 min
Oct 13, 6:57 AM CDT	Special Weather Statement	OUN	Carter, Garvin, Love, Murray	48 min
Oct 13, 7:19 AM CDT	Tornado Warning	OUN	Pontotoc, Pottawatomie, Seminole	26 min
Oct 13, 7:29 AM CDT	Areal Flood Advisory	OUN	Pottawatomie	3 hr
Oct 13, 7:44 AM CDT	Special Weather Statement	OUN	Coal, Hughes, Pontotoc, Seminole	46 min
Oct 13, 8:07 AM CDT	Tornado Warning	OUN	Hughes	23 min
Oct 13, 2:54 PM CDT	Special Weather Statement	OUN	Bryan	66 min
Oct 13, 3:17 PM CDT	Areal Flood Advisory	OUN	Atoka, Bryan	3 hr

Nearby

Tornado Warnings in Oklahoma, 2021 Every tornado warning in 2021 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.