Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 194, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Dec 10, 2021, 6:56 PM CST for Washington County, Arkansas; Adair County, Cherokee County, Oklahoma. It was in force for 34 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
- Dec 10, 2021, 6:56 PM CST (00:56 UTC)
- Expired
- Dec 10, 2021, 7:30 PM CST
- In force
- 34 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Washington County, AR, Adair County, OK, Cherokee County, OK
The radar
The Western Arkansas radar (KSRX), 70 km from the middle of the area, began a volume at 00:56 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 |
|---|---|---|---|
| Dec 10, 6:51 PM CST | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 0.9 hours before the alert went out and 142 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
- 637 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1113 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 344 m²/s²
- 0-3 km storm-relative helicity
- 300 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 8.4
The text
As transmitted.
086
WUUS54 KTSA 110056
SVRTSA
ARC143-OKC001-021-110145-
/O.NEW.KTSA.SV.W.0194.211211T0056Z-211211T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
656 PM CST Fri Dec 10 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
West central Washington County in northwestern Arkansas...
Central Adair County in northeastern Oklahoma...
Southeastern Cherokee County in east central Oklahoma...
* Until 745 PM CST.
* At 656 PM CST, a severe thunderstorm was located 3 miles northeast
of Cherokee Landing State Park, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations in or near the path include...
Stilwell... Lincoln...
Westville... Adair State Park...
Christie... Cherokee Landing State Park...
Cincinnati... Baron...
Maryetta... Summers...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CST for northwestern
Arkansas...and northeastern Oklahoma.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3571 9485 3581 9499 3608 9452 3595 9436
TIME...MOT...LOC 0056Z 242DEG 43KT 3580 9486
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$3 follow-up statements
387
WWUS54 KTSA 110102
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
702 PM CST Fri Dec 10 2021
OKC021-110111-
/O.CAN.KTSA.SV.W.0194.000000T0000Z-211211T0145Z/
Cherokee OK-
702 PM CST Fri Dec 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHEROKEE COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM CST for northwestern
Arkansas...and northeastern Oklahoma.
LAT...LON 3575 9476 3577 9481 3586 9481 3608 9452
3595 9436
TIME...MOT...LOC 0101Z 244DEG 43KT 3582 9478
$$
ARC143-OKC001-110145-
/O.CON.KTSA.SV.W.0194.000000T0000Z-211211T0145Z/
Washington AR-Adair OK-
702 PM CST Fri Dec 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CST
FOR WEST CENTRAL WASHINGTON AND CENTRAL ADAIR COUNTIES...
At 701 PM CST, a severe thunderstorm was located 7 miles west of
Maryetta, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Stilwell... Lincoln...
Westville... Adair State Park...
Cincinnati... Baron...
Maryetta... Summers...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CST for northwestern
Arkansas...and northeastern Oklahoma.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3575 9476 3577 9481 3586 9481 3608 9452
3595 9436
TIME...MOT...LOC 0101Z 244DEG 43KT 3582 9478
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$545
WWUS54 KTSA 110115
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
715 PM CST Fri Dec 10 2021
ARC143-OKC001-110145-
/O.CON.KTSA.SV.W.0194.000000T0000Z-211211T0145Z/
Washington AR-Adair OK-
715 PM CST Fri Dec 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CST
FOR WEST CENTRAL WASHINGTON AND CENTRAL ADAIR COUNTIES...
At 714 PM CST, a severe thunderstorm was located 3 miles northeast of
Adair State Park, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Stilwell... Lincoln...
Westville... Adair State Park...
Cincinnati... Baron...
Maryetta... Summers...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CST for northwestern
Arkansas...and northeastern Oklahoma.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3580 9466 3580 9467 3588 9469 3606 9449
3595 9436
TIME...MOT...LOC 0114Z 246DEG 44KT 3587 9458
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$377
WWUS54 KTSA 110130
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
730 PM CST Fri Dec 10 2021
ARC143-OKC001-110139-
/O.CAN.KTSA.SV.W.0194.000000T0000Z-211211T0145Z/
Washington AR-Adair OK-
730 PM CST Fri Dec 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR FAR WESTERN WASHINGTON AND
CENTRAL ADAIR COUNTIES IS CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM CST for northwestern
Arkansas...and northeastern Oklahoma.
LAT...LON 3580 9466 3580 9467 3588 9469 3606 9449
3595 9436
TIME...MOT...LOC 0128Z 242DEG 43KT 3596 9437
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 6:37 PM CST | Severe Thunderstorm Warning | TSA | Benton | 38 min |
| Dec 10, 7:18 PM CST | Special Weather Statement | TSA | Benton | 27 min |
| Dec 10, 7:22 PM CST | Tornado Warning | TSA | Washington | 22 min |
| Dec 10, 7:40 PM CST | Special Weather Statement | TSA | Washington | 35 min |
| Dec 10, 8:02 PM CST | Special Weather Statement | TSA | Carroll | 28 min |
| Dec 10, 8:07 PM CST | Special Weather Statement | TSA | Crawford | 23 min |
| Dec 10, 8:31 PM CST | Special Weather Statement | TSA | Franklin, Sebastian | 44 min |
| Dec 10, 8:42 PM CST | Severe Thunderstorm Warning | TSA | Franklin, Sebastian | 33 min |
| Dec 10, 6:14 PM CST | Special Weather Statement | TSA | Delaware | 31 min |
| Dec 10, 8:08 PM CST | Special Weather Statement | TSA | LeFlore | 37 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2021Severe Thunderstorm Warnings in Arkansas, 2021Every severe thunderstorm warning 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.