Alert archive / Oklahoma / Tornado Warnings in 2021

Tornado Warning 38, NWS Norman, OK

October 12, 20214 counties in Oklahoma

NWS Norman, OK issued this tornado warning at Oct 12, 2021, 8:53 PM CDT for 4 counties in Oklahoma. It was in force for 52 min. 1 report 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 12, 2021, 8:53 PM CDT (01:53 UTC)
Expired: Oct 12, 2021, 9:45 PM CDT
In force: 52 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

Counties Caddo County, OK, Comanche County, OK, Kiowa County, OK, Washita County, OK

The radar

The Altus AFB radar (KFDR), 65 km from the middle of the area, began a volume at 01:54 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 12, 9:40 PM CDT	TSTM WND GST 58	4 Nnw Fort Cobb, OK

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, 5:34 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 1.9 hours before the alert went out and 119 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.

933 
WFUS54 KOUN 130153
TOROUN
OKC015-031-075-149-130245-
/O.NEW.KOUN.TO.W.0038.211013T0153Z-211013T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Norman OK
853 PM CDT Tue Oct 12 2021

The National Weather Service in Norman has issued a

* Tornado Warning for...
  Southeastern Washita County in western Oklahoma...
  Northwestern Comanche County in southwestern Oklahoma...
  Southwestern Caddo County in southwestern Oklahoma...
  Eastern Kiowa County in southwestern Oklahoma...

* Until 945 PM CDT.
    
* At 852 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles southeast of Cooperton, moving northeast at 25
  mph.

  HAZARD...Tornado and ping pong ball size hail.

  SOURCE...Radar indicated rotation. This storm has a history of 
           producing tornadoes. 

  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...
  Carnegie, Mountain View, Fort Cobb, Cooperton, Meers, Alfalfa,
  Boone, Fort Cobb Reservoir, southwestern Fort Sill, Cowden and
  Wichita Mountains Wildlife Refuge.

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 3464 9866 3473 9892 3530 9871 3510 9827
TIME...MOT...LOC 0152Z 206DEG 22KT 3477 9880 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN

$$

BRB

4 follow-up statements

248 
WWUS54 KOUN 130204
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
904 PM CDT Tue Oct 12 2021

OKC015-031-075-149-130245-
/O.CON.KOUN.TO.W.0038.000000T0000Z-211013T0245Z/
Washita OK-Comanche OK-Caddo OK-Kiowa OK-
904 PM CDT Tue Oct 12 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
SOUTHEASTERN WASHITA...NORTHWESTERN COMANCHE...SOUTHWESTERN CADDO AND
NORTHEASTERN KIOWA COUNTIES...
    
At 904 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles west of Meers, moving northeast at 20 mph.

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...
Carnegie, Fort Cobb, Meers, Alfalfa, Boone, Fort Cobb Reservoir and
Wichita Mountains Wildlife Refuge.

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 3469 9862 3477 9883 3529 9868 3510 9827
TIME...MOT...LOC 0204Z 223DEG 17KT 3480 9867 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

BRB

735 
WWUS54 KOUN 130213
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
913 PM CDT Tue Oct 12 2021

OKC015-031-075-149-130245-
/O.CON.KOUN.TO.W.0038.000000T0000Z-211013T0245Z/
Washita OK-Comanche OK-Caddo OK-Kiowa OK-
913 PM CDT Tue Oct 12 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
SOUTHEASTERN WASHITA...NORTH CENTRAL COMANCHE...SOUTHWESTERN CADDO
AND NORTHEASTERN KIOWA COUNTIES...
    
At 912 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles northwest of Meers, moving northeast at 20 mph.

HAZARD...Tornado and ping pong 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...
Carnegie, Fort Cobb, Fort Cobb Reservoir, Meers, Alfalfa, Boone and
northeastern Wichita Mountains Wildlife Refuge.

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 3474 9858 3484 9878 3526 9862 3526 9861
      3510 9827 3475 9858
TIME...MOT...LOC 0212Z 223DEG 17KT 3482 9864 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN

$$

BRB

231 
WWUS54 KOUN 130227
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
927 PM CDT Tue Oct 12 2021

OKC031-149-130237-
/O.CAN.KOUN.TO.W.0038.000000T0000Z-211013T0245Z/
Washita OK-Comanche OK-
927 PM CDT Tue Oct 12 2021

...THE TORNADO WARNING FOR SOUTHEASTERN WASHITA AND NORTH CENTRAL
COMANCHE COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3523 9854 3510 9827 3485 9853 3485 9854
      3491 9868
TIME...MOT...LOC 0227Z 214DEG 21KT 3492 9856 

$$

OKC015-075-130245-
/O.CON.KOUN.TO.W.0038.000000T0000Z-211013T0245Z/
Caddo OK-Kiowa OK-
927 PM CDT Tue Oct 12 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
SOUTHWESTERN CADDO AND EAST CENTRAL KIOWA COUNTIES...
    
At 927 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles west of Boone, moving northeast at 25 mph.

HAZARD...Tornado and quarter 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...
Carnegie, Fort Cobb and Fort Cobb Reservoir. 

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 3523 9854 3510 9827 3485 9853 3485 9854
      3491 9868
TIME...MOT...LOC 0227Z 214DEG 21KT 3492 9856 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

BRB

480 
WWUS54 KOUN 130239
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
939 PM CDT Tue Oct 12 2021

OKC075-130248-
/O.CAN.KOUN.TO.W.0038.000000T0000Z-211013T0245Z/
Kiowa OK-
939 PM CDT Tue Oct 12 2021

...THE TORNADO WARNING FOR EAST CENTRAL KIOWA 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 3523 9853 3510 9827 3509 9828 3488 9850
      3494 9862 3503 9862
TIME...MOT...LOC 0238Z 210DEG 21KT 3498 9852 

$$

OKC015-130245-
/O.CON.KOUN.TO.W.0038.000000T0000Z-211013T0245Z/
Caddo OK-
939 PM CDT Tue Oct 12 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
SOUTHWESTERN CADDO COUNTY...
    
At 938 PM CDT, a confirmed tornado was located 6 miles northwest of
Boone, moving northeast at 25 mph.

HAZARD...Damaging tornado and quarter 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...
Fort Cobb and Fort Cobb Reservoir. 

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 3523 9853 3510 9827 3509 9828 3488 9850
      3494 9862 3503 9862
TIME...MOT...LOC 0238Z 210DEG 21KT 3498 9852 

TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN

$$

BRB

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, 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, 5:07 AM CDT	Tornado Warning	OUN	Canadian, Oklahoma	23 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.