Alert archive / Arkansas / Tornado Warnings in 2021

Tornado Warning 45, NWS Tulsa, OK

December 10, 2021Washington County, Arkansas

NWS Tulsa, OK issued this tornado warning at Dec 10, 2021, 7:22 PM CST for Washington County, Arkansas. It was in force for 22 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, 7:22 PM CST (01:22 UTC)
Expired
Dec 10, 2021, 7:44 PM CST
In force
22 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Washington County, AR

The radar

The Western Arkansas radar (KSRX), 71 km from the middle of the area, began a volume at 01:21 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.

IssuedProductOfficeLasted
Dec 10, 6:51 PM CSTTornado WatchSPC4 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.4 hours before the alert went out and 118 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2021-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 637 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2021-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 344 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
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

Open this sounding in Storm Lab

The text

As transmitted.

025 
WFUS54 KTSA 110122
TORTSA
ARC143-110200-
/O.NEW.KTSA.TO.W.0045.211211T0122Z-211211T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
722 PM CST Fri Dec 10 2021

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Central Washington County in northwestern Arkansas...

* Until 800 PM CST.
    
* At 722 PM CST, a severe thunderstorm capable of producing a tornado
  was located 5 miles southwest of Lincoln, moving east at 50 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 in or near the path include...
  Fayetteville...                   Farmington...
  Prairie Grove...                  West Fork...
  Lincoln...                        Greenland...
  Drake Field Airport...            Prairie Grove Battlefield
  State...
  Walnut Grove...                   Sulphur City...
  Hicks...                          Clyde...
  Canehill...                       Hogeye...
  Morrow...                         Viney Grove...

This includes Interstate 49 between mile markers 51 and 62.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement 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 3584 9451 3593 9452 3611 9411 3592 9403
TIME...MOT...LOC 0122Z 247DEG 45KT 3589 9448 

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

$$
3 follow-up statements
164 
WWUS54 KTSA 110134
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
734 PM CST Fri Dec 10 2021

ARC143-110200-
/O.CON.KTSA.TO.W.0045.000000T0000Z-211211T0200Z/
Washington AR-
734 PM CST Fri Dec 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR CENTRAL
WASHINGTON COUNTY...
    
At 734 PM CST, a severe thunderstorm capable of producing a tornado
was located over Prairie Grove, moving northeast at 50 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 in or near the path include...
Fayetteville...                   Prairie Grove...
West Fork...                      Greenland...
Drake Field Airport...            Sulphur City...
Hogeye...                         Hicks...
Walnut Grove...                   

This includes Interstate 49 between mile markers 52 and 60.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement 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 3590 9435 3595 9438 3608 9410 3592 9403
TIME...MOT...LOC 0134Z 247DEG 45KT 3595 9431 

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

$$
179 
WWUS54 KTSA 110139
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
739 PM CST Fri Dec 10 2021

ARC143-110200-
/O.CON.KTSA.TO.W.0045.000000T0000Z-211211T0200Z/
Washington AR-
739 PM CST Fri Dec 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR CENTRAL
WASHINGTON COUNTY...
    
At 739 PM CST, a severe thunderstorm capable of producing a tornado
was located over Greenland, moving east at 55 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 in or near the path include...
Fayetteville...                   West Fork...
Greenland...                      Drake Field Airport...

This includes Interstate 49 between mile markers 54 and 58.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement 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 3594 9423 3599 9426 3605 9409 3596 9405
TIME...MOT...LOC 0139Z 249DEG 49KT 3598 9419 

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

$$
857 
WWUS54 KTSA 110144
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
744 PM CST Fri Dec 10 2021

ARC143-110154-
/O.CAN.KTSA.TO.W.0045.000000T0000Z-211211T0200Z/
Washington AR-
744 PM CST Fri Dec 10 2021

...THE TORNADO WARNING FOR CENTRAL WASHINGTON COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However small hail and
gusty winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 1100 PM CST for northwestern
Arkansas.

LAT...LON 3594 9423 3599 9426 3605 9409 3596 9405
TIME...MOT...LOC 0143Z 247DEG 45KT 3601 9411 

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 10, 6:37 PM CSTSevere Thunderstorm WarningTSABenton38 min
Dec 10, 6:56 PM CSTSevere Thunderstorm WarningTSAWashington34 min
Dec 10, 7:18 PM CSTSpecial Weather StatementTSABenton27 min
Dec 10, 7:40 PM CSTSpecial Weather StatementTSAWashington35 min
Dec 10, 8:02 PM CSTSpecial Weather StatementTSACarroll28 min
Dec 10, 8:07 PM CSTSpecial Weather StatementTSACrawford23 min
Dec 10, 8:31 PM CSTSpecial Weather StatementTSAFranklin, Sebastian44 min
Dec 10, 8:42 PM CSTSevere Thunderstorm WarningTSAFranklin, Sebastian33 min

Nearby

Tornado Warnings in Arkansas, 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.