Alert archive / Oklahoma / Tornado Warnings in 2021

Tornado Warning 34, NWS Norman, OK

October 12, 2021Comanche County, Kiowa County, Tillman County, Oklahoma

NWS Norman, OK issued this tornado warning at Oct 12, 2021, 7:40 PM CDT for Comanche County, Kiowa County, Tillman County, Oklahoma. It was in force for 50 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, 7:40 PM CDT (00:40 UTC)
Expired: Oct 12, 2021, 8:30 PM CDT
In force: 50 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Comanche County, OK, Kiowa County, OK, Tillman County, OK

The radar

The Altus AFB radar (KFDR), 28 km from the middle of the area, began a volume at 00:43 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, 8:21 PM CDT	HAIL 1.75	5 S Snyder, 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, 0.7 hours before the alert went out and 165 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.

375 
WFUS54 KOUN 130040
TOROUN
OKC031-075-141-130130-
/O.NEW.KOUN.TO.W.0034.211013T0040Z-211013T0130Z/

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

The National Weather Service in Norman has issued a

* Tornado Warning for...
  West central Comanche County in southwestern Oklahoma...
  South central Kiowa County in southwestern Oklahoma...
  Northwestern Tillman County in southwestern Oklahoma...

* Until 830 PM CDT.
    
* At 740 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Frederick, moving northeast at 30 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...
  Frederick, Snyder, Tipton, Mountain Park, Indiahoma, Manitou, Tom
  Steed Reservoir and southwestern Fort Sill.

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 3459 9911 3459 9908 3461 9909 3462 9908
      3464 9910 3468 9908 3467 9906 3469 9904
      3470 9905 3470 9907 3480 9904 3467 9870
      3426 9902 3434 9920
TIME...MOT...LOC 0040Z 213DEG 25KT 3436 9906 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

BRB

5 follow-up statements

716 
WWUS54 KOUN 130041
SVSOUN

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

OKC031-075-141-130130-
/O.CON.KOUN.TO.W.0034.000000T0000Z-211013T0130Z/
Comanche OK-Kiowa OK-Tillman OK-
741 PM CDT Tue Oct 12 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR WEST
CENTRAL COMANCHE...SOUTH CENTRAL KIOWA AND NORTHWESTERN TILLMAN
COUNTIES...
    
At 741 PM CDT, a confirmed tornado was located near Frederick, moving
northeast at 30 mph.

HAZARD...Damaging tornado.

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...
Frederick, Snyder, Tipton, Mountain Park, Indiahoma, Manitou, Tom
Steed Reservoir and southwestern Fort Sill.

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 3459 9911 3459 9908 3461 9909 3462 9908
      3464 9910 3468 9908 3467 9906 3469 9904
      3470 9905 3470 9907 3480 9904 3467 9870
      3426 9902 3434 9920
TIME...MOT...LOC 0041Z 212DEG 25KT 3436 9906 

TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN

$$

BRB

142 
WWUS54 KOUN 130044
SVSOUN

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

OKC031-075-141-130130-
/O.CON.KOUN.TO.W.0034.000000T0000Z-211013T0130Z/
Comanche OK-Kiowa OK-Tillman OK-
744 PM CDT Tue Oct 12 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR WEST
CENTRAL COMANCHE...SOUTH CENTRAL KIOWA AND NORTHWESTERN TILLMAN
COUNTIES...
    
At 744 PM CDT, a confirmed large and extremely dangerous tornado was
located near Frederick, moving northeast at 30 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Weather spotters confirmed tornado.

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...
Frederick, Snyder, Tipton, Mountain Park, Indiahoma, Manitou, Tom
Steed Reservoir and southwestern Fort Sill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, an extremely dangerous and potentially deadly tornado is
on the ground. 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 3459 9911 3459 9908 3461 9909 3462 9908
      3464 9910 3468 9908 3467 9906 3469 9904
      3470 9905 3470 9907 3480 9904 3467 9870
      3429 9903 3435 9918
TIME...MOT...LOC 0044Z 213DEG 25KT 3438 9904 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...<.75 IN

$$

BRB

736 
WWUS54 KOUN 130050
SVSOUN

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

OKC031-075-141-130130-
/O.CON.KOUN.TO.W.0034.000000T0000Z-211013T0130Z/
Comanche OK-Kiowa OK-Tillman OK-
750 PM CDT Tue Oct 12 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR WEST
CENTRAL COMANCHE...SOUTH CENTRAL KIOWA AND NORTHWESTERN TILLMAN
COUNTIES...
    
At 750 PM CDT, a confirmed large and extremely dangerous tornado was
located near Frederick, moving north at 30 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Weather spotters confirmed tornado.

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...
Frederick, Snyder, Tipton, Mountain Park, Manitou and Tom Steed
Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, an extremely dangerous and potentially deadly tornado is
on the ground. 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 3436 9900 3441 9916 3459 9911 3459 9908
      3461 9909 3462 9908 3464 9910 3468 9908
      3467 9906 3469 9904 3470 9905 3470 9907
      3480 9904 3470 9877
TIME...MOT...LOC 0050Z 195DEG 25KT 3443 9906 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...1.00 IN

$$

BRB

655 
WWUS54 KOUN 130055
SVSOUN

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

OKC031-130105-
/O.CAN.KOUN.TO.W.0034.000000T0000Z-211013T0130Z/
Comanche OK-
755 PM CDT Tue Oct 12 2021

...THE TORNADO WARNING FOR WEST CENTRAL COMANCHE 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 3459 9909 3459 9908 3461 9909 3467 9907
      3467 9906 3469 9904 3470 9906 3480 9904
      3472 9882 3468 9882 3438 9899 3444 9913
TIME...MOT...LOC 0055Z 191DEG 22KT 3446 9906 

$$

OKC075-141-130130-
/O.CON.KOUN.TO.W.0034.000000T0000Z-211013T0130Z/
Kiowa OK-Tillman OK-
755 PM CDT Tue Oct 12 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR SOUTH
CENTRAL KIOWA AND NORTHWESTERN TILLMAN COUNTIES...
    
At 755 PM CDT, a confirmed large and extremely dangerous tornado was
located 5 miles northwest of Frederick, moving north at 25 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Weather spotters confirmed tornado.

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...
Frederick, Snyder, Mountain Park, Manitou and Tom Steed Reservoir. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, an extremely dangerous and potentially deadly tornado is
on the ground. 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 3459 9909 3459 9908 3461 9909 3467 9907
      3467 9906 3469 9904 3470 9906 3480 9904
      3472 9882 3468 9882 3438 9899 3444 9913
TIME...MOT...LOC 0055Z 191DEG 22KT 3446 9906 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...1.00 IN

$$

BRB

864 
WWUS54 KOUN 130104
SVSOUN

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

OKC075-141-130130-
/O.CON.KOUN.TO.W.0034.000000T0000Z-211013T0130Z/
Kiowa OK-Tillman OK-
804 PM CDT Tue Oct 12 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR SOUTH
CENTRAL KIOWA AND NORTHWESTERN TILLMAN COUNTIES...
    
At 804 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Manitou, moving northeast at 30 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...
Snyder, Mountain Park, Manitou and Tom Steed 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 3444 9898 3447 9910 3467 9906 3469 9904
      3470 9906 3480 9904 3472 9882 3470 9882
TIME...MOT...LOC 0104Z 210DEG 25KT 3451 9902 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 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, 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, 5:07 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.