Alert archive / Oklahoma / Tornado Warnings in 2021
Tornado Warning 31, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Oct 12, 2021, 6:18 PM CDT for 4 counties in Oklahoma. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 12, 2021, 6:18 PM CDT (23:18 UTC)
- Expired
- Oct 12, 2021, 7:00 PM CDT
- In force
- 42 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Beckham County, OK, Greer County, OK, Kiowa County, OK, Washita County, OK
The radar
The Altus AFB radar (KFDR), 96 km from the middle of the area, began a volume at 23:19 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.
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 12:00Z, 11.3 hours before the alert went out and 182 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2089 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 231 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
302
WFUS54 KOUN 122318
TOROUN
OKC009-055-075-149-130000-
/O.NEW.KOUN.TO.W.0031.211012T2318Z-211013T0000Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Norman OK
618 PM CDT Tue Oct 12 2021
The National Weather Service in Norman has issued a
* Tornado Warning for...
Southwestern Washita County in western Oklahoma...
Northwestern Kiowa County in southwestern Oklahoma...
North central Greer County in southwestern Oklahoma...
Southeastern Beckham County in western Oklahoma...
* Until 700 PM CDT.
* At 618 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles north of Willow, moving northeast at 15 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...
Carter and Retrop.
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 3503 9942 3510 9957 3536 9944 3524 9916
TIME...MOT...LOC 2318Z 209DEG 13KT 3511 9949
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
BRB2 follow-up statements
222
WWUS54 KOUN 122331
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
631 PM CDT Tue Oct 12 2021
OKC055-075-122341-
/O.CAN.KOUN.TO.W.0031.000000T0000Z-211013T0000Z/
Kiowa OK-Greer OK-
631 PM CDT Tue Oct 12 2021
...THE TORNADO WARNING FOR NORTHWESTERN KIOWA AND NORTH CENTRAL GREER
COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
LAT...LON 3536 9944 3525 9919 3511 9937 3512 9941
3511 9941 3511 9944 3512 9944 3512 9948
3513 9953
TIME...MOT...LOC 2331Z 211DEG 14KT 3516 9944
$$
OKC009-149-130000-
/O.CON.KOUN.TO.W.0031.000000T0000Z-211013T0000Z/
Washita OK-Beckham OK-
631 PM CDT Tue Oct 12 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR WEST
CENTRAL WASHITA AND SOUTHEASTERN BECKHAM COUNTIES...
At 631 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles west of Retrop, moving northeast at 15 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...
Retrop.
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 3536 9944 3525 9919 3511 9937 3512 9941
3511 9941 3511 9944 3512 9944 3512 9948
3513 9953
TIME...MOT...LOC 2331Z 211DEG 14KT 3516 9944
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
BRB532
WWUS54 KOUN 122340
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
640 PM CDT Tue Oct 12 2021
OKC009-149-130000-
/O.CON.KOUN.TO.W.0031.000000T0000Z-211013T0000Z/
Washita OK-Beckham OK-
640 PM CDT Tue Oct 12 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR WEST
CENTRAL WASHITA AND EAST CENTRAL BECKHAM COUNTIES...
At 640 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles northwest of Retrop, moving north at 20 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Retrop.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a storm shelter, safe room, or an interior
room on the lowest floor of a sturdy building. Avoid windows. If you
are outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.
&&
LAT...LON 3513 9937 3517 9949 3535 9942 3526 9922
TIME...MOT...LOC 2340Z 198DEG 19KT 3520 9941
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
BRBThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 10:46 AM CDT | Flood Watch | OUN | Atoka, Bryan, Coal, Johnston, Love, Marshall | 41 hr |
| Oct 12, 12:36 PM CDT | Special Weather Statement | OUN | Alfalfa | 24 min |
| Oct 12, 12:42 PM CDT | Special Weather Statement | OUN | Caddo | 33 min |
| Oct 12, 1:08 PM CDT | Special Weather Statement | OUN | Canadian | 37 min |
| Oct 12, 1:09 PM CDT | Special Weather Statement | OUN | Major | 36 min |
| Oct 12, 1:28 PM CDT | Special Weather Statement | OUN | Alfalfa | 17 min |
| Oct 12, 1:35 PM CDT | Special Weather Statement | OUN | Major | 25 min |
| Oct 12, 1:42 PM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Major, Woods | 48 min |
| Oct 12, 1:46 PM CDT | Special Weather Statement | OUN | Canadian | 29 min |
| Oct 12, 1:50 PM CDT | Severe Thunderstorm Warning | OUN | Canadian, Kingfisher, Logan | 40 min |
| Oct 12, 2:33 PM CDT | Special Weather Statement | OUN | Logan | 27 min |
| Oct 12, 3:03 PM CDT | Special Weather Statement | OUN | Noble | 42 min |
| Oct 12, 3:42 PM CDT | Special Weather Statement | OUN | Kay | 33 min |
| Oct 12, 4:14 PM CDT | Special Weather Statement | OUN | Kay | 31 min |
| Oct 12, 5:03 PM CDT | Special Weather Statement | OUN | Harmon | 27 min |
| Oct 12, 5:26 PM CDT | Special Weather Statement | OUN | Greer | 34 min |
| Oct 12, 5:37 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Greer, Harmon | 38 min |
| Oct 12, 6:14 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Custer, Roger Mills, Washita | 46 min |
| Oct 12, 6:21 PM CDT | Severe Thunderstorm Warning | OUN | Jackson, Kiowa, Tillman | 39 min |
| Oct 12, 6:51 PM CDT | Tornado Warning | OUN | Beckham, Custer, Washita | 24 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.