Alert archive / Oklahoma / Tornado Warnings in 2021
Tornado Warning 23, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Oct 10, 2021, 5:39 PM CDT for Comanche County, Kiowa County, Oklahoma. It was in force for 51 min. 4 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 10, 2021, 5:39 PM CDT (22:39 UTC)
- Expired
- Oct 10, 2021, 6:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 2.5 in
Counties Comanche County, OK, Kiowa County, OK
The radar
The Altus AFB radar (KFDR), 52 km from the middle of the area, began a volume at 22:39 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 10, 5:59 PM CDT | TORNADO | 4 S Cooperton, OK | SWIRLS VISIBLE AT THE SURFACE. |
| Oct 10, 6:08 PM CDT | TSTM WND GST 70 | 6 S Cooperton, OK | SPOTTERNETWORK REPORT OF STRONG WINDS IN THE REAR FLANK DOWNDRAFT. |
| Oct 10, 6:13 PM CDT | TORNADO | 9 E Cooperton, OK | A TORNADO WAS OBSERVED NEAR SADDLE MOUNTAIN. |
| Oct 10, 6:15 PM CDT | HAIL 2 | Roosevelt, OK | SIGNIFICANT DAMAGE DUE TO WIND DRIVEN HAIL. |
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 10, 3:22 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 10.7 hours before the alert went out and 153 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.
- Mixed-layer CAPE
- 8 J/kg
- Mixed-layer CIN
- -777 J/kg
- Mixed-layer LCL
- 1314 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 273 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
799
WFUS54 KOUN 102239
TOROUN
OKC031-075-102330-
/O.NEW.KOUN.TO.W.0023.211010T2239Z-211010T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Norman OK
539 PM CDT Sun Oct 10 2021
The National Weather Service in Norman has issued a
* Tornado Warning for...
Northwestern Comanche County in southwestern Oklahoma...
Central Kiowa County in southwestern Oklahoma...
* Until 630 PM CDT.
* At 539 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles east of Warren, moving northeast at 35 mph.
HAZARD...Tornado and tennis 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...
Mountain View, Roosevelt, Cooperton, Tom Steed Reservoir and
northwestern 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 3511 9875 3478 9869 3470 9914 3470 9915
3476 9916 3476 9915 3477 9916 3479 9916
TIME...MOT...LOC 2239Z 236DEG 28KT 3476 9912
TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
$$
..speg.3 follow-up statements
721
WWUS54 KOUN 102250
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
550 PM CDT Sun Oct 10 2021
OKC031-075-102330-
/O.CON.KOUN.TO.W.0023.000000T0000Z-211010T2330Z/
Comanche OK-Kiowa OK-
550 PM CDT Sun Oct 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHWESTERN COMANCHE AND CENTRAL KIOWA COUNTIES...
At 549 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Tom Steed Reservoir, moving east-northeast at 40
mph.
HAZARD...Tornado and three inch hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Mountain View, Roosevelt, Cooperton, Tom Steed Reservoir and
northwestern Wichita Mountains Wildlife Refuge.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a storm shelter, safe room, or an interior
room on the lowest floor of a sturdy building. Avoid windows. If you
are outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.
&&
LAT...LON 3511 9875 3478 9869 3470 9914 3470 9915
3476 9916 3476 9915 3477 9916 3479 9916
TIME...MOT...LOC 2249Z 254DEG 34KT 3479 9901
TORNADO...RADAR INDICATED
MAX HAIL SIZE...3.00 IN
$$
..speg.038
WWUS54 KOUN 102301
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
601 PM CDT Sun Oct 10 2021
OKC031-075-102330-
/O.CON.KOUN.TO.W.0023.000000T0000Z-211010T2330Z/
Comanche OK-Kiowa OK-
601 PM CDT Sun Oct 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHWESTERN COMANCHE AND EAST CENTRAL KIOWA COUNTIES...
At 601 PM CDT, a confirmed tornado was located 4 miles south of
Cooperton, moving northeast at 40 mph.
HAZARD...Damaging tornado and three inch 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...
Cooperton, Tom Steed Reservoir and northwestern Wichita Mountains
Wildlife Refuge.
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 3478 9869 3475 9895 3477 9897 3485 9899
3504 9874
TIME...MOT...LOC 2301Z 232DEG 33KT 3483 9886
TORNADO...OBSERVED
MAX HAIL SIZE...3.00 IN
$$
..speg.760
WWUS54 KOUN 102330
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
630 PM CDT Sun Oct 10 2021
OKC031-075-102339-
/O.EXP.KOUN.TO.W.0023.000000T0000Z-211010T2330Z/
Comanche OK-Kiowa OK-
630 PM CDT Sun Oct 10 2021
...THE TORNADO WARNING FOR NORTHWESTERN COMANCHE AND EAST CENTRAL
KIOWA COUNTIES WILL EXPIRE AT 630 PM CDT...
The tornadic thunderstorm which prompted the warning has moved into
Caddo County. Therefore, the tornado warning for Comanche and Kiowa
Counties will be allowed to expire.
LAT...LON 3478 9869 3475 9895 3477 9897 3485 9899
3504 9874
TIME...MOT...LOC 2329Z 236DEG 28KT 3495 9865
$$
..speg.The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 10, 11:48 AM CDT | Flood Watch | OUN | Cleveland, Lincoln, Logan, Noble, Oklahoma, Payne and 1 more | 11 hr |
| Oct 10, 5:17 PM CDT | Special Weather Statement | OUN | Kiowa | 28 min |
| Oct 10, 5:24 PM CDT | Severe Thunderstorm Warning | OUN | Jackson, Kiowa | 51 min |
| Oct 10, 5:46 PM CDT | Severe Thunderstorm Warning | OUN | Jackson, Kiowa, Tillman | 29 min |
| Oct 10, 6:05 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Comanche, Kiowa, Washita | 55 min |
| Oct 10, 6:14 PM CDT | Tornado Warning | OUN | Caddo, Kiowa | 46 min |
| Oct 10, 6:23 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 52 min |
| Oct 10, 6:29 PM CDT | Areal Flood Advisory | OUN | Caddo, Comanche, Kiowa, Washita | 3 hr |
| Oct 10, 6:51 PM CDT | Severe Thunderstorm Warning | OUN | Kay | 39 min |
| Oct 10, 6:53 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Jefferson, Stephens, Tillman | 52 min |
| Oct 10, 6:53 PM CDT | Tornado Warning | OUN | Caddo, Grady | 52 min |
| Oct 10, 6:57 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Canadian, Comanche, Grady | 48 min |
Nearby
Tornado Warnings in Oklahoma, 2021Every tornado warning in 2021Tornadoes 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.