Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 195, NWS Tulsa, OK

December 10, 2021Franklin County, Sebastian County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Dec 10, 2021, 8:42 PM CST for Franklin County, Sebastian County, Arkansas. It was in force for 33 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
Dec 10, 2021, 8:42 PM CST (02:42 UTC)
Expired
Dec 10, 2021, 9:15 PM CST
In force
33 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Franklin County, AR, Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 30 km from the middle of the area, began a volume at 02:42 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

TimeReportWhereRemark
Dec 10, 9:03 PM CSTTSTM WND GST 582 Ne Ozark, ARFIRE CHIEF REPORTS WIND GUSTS IN EXCESS OF 58MPH.

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.

IssuedProductOfficeLasted
Dec 10, 6:51 PM CSTTornado WatchSPC4 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.7 hours before the alert went out and 186 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.

419 
WUUS54 KTSA 110242
SVRTSA
ARC047-131-110315-
/O.NEW.KTSA.SV.W.0195.211211T0242Z-211211T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
842 PM CST Fri Dec 10 2021

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Southern Franklin County in west central Arkansas...
  Sebastian County in west central Arkansas...

* Until 915 PM CST.

* At 842 PM CST, severe thunderstorms were located along a line
  extending from 5 miles southeast of Mulberry to near Bloomer to
  near Huntington to 6 miles northeast of Heavener Runestone State
  Park, moving east at 25 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...
  Ozark...                          Charleston...
  Greenwood...                      Lavaca...
  Altus...                          Hartford...
  Huntington...                     Branch...
  Midland...                        Denning...
  Wiederkehr Village...             Bloomer...
  Washburn...                       Burnville...
  Fort Chaffee...                   Patterson...
  Arkola...                         Crossroads...
  Witcherville...                   Dayton...

This includes Interstate 40 in Arkansas between mile markers 37 and
42.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CST for northwestern
and west central Arkansas...and southeastern Oklahoma.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3538 9371 3537 9375 3542 9380 3531 9381
      3532 9392 3523 9392 3523 9403 3514 9403
      3514 9414 3510 9414 3506 9425 3506 9423
      3497 9424 3495 9445 3509 9444 3514 9436
      3533 9420 3546 9403 3550 9401 3552 9370
TIME...MOT...LOC 0242Z 270DEG 23KT 3544 9400 3527 9412 3511 9428 3498
9451

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
2 follow-up statements
733 
WWUS54 KTSA 110254
SVSTSA

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

ARC047-131-110315-
/O.CON.KTSA.SV.W.0195.000000T0000Z-211211T0315Z/
Franklin AR-Sebastian AR-
854 PM CST Fri Dec 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CST
FOR SOUTHERN FRANKLIN AND SOUTHERN SEBASTIAN COUNTIES...

At 853 PM CST, severe thunderstorms were located along a line
extending from 6 miles southwest of Ozark to 2 miles southwest of
Charleston to 3 miles northeast of Huntington to 4 miles southwest of
Hartford, moving east at 25 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...
Ozark...                          Charleston...
Greenwood...                      Altus...
Hartford...                       Huntington...
Branch...                         Midland...
Denning...                        Wiederkehr Village...
Washburn...                       Burnville...
Fort Chaffee...                   Patterson...
Etna...                           Alix...
Arkola...                         Crossroads...
Witcherville...                   Dayton...

This includes Interstate 40 in Arkansas between mile markers 36 and
42.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CST for west central
Arkansas...and southeastern Oklahoma.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3538 9371 3537 9375 3542 9380 3531 9381
      3532 9392 3523 9392 3523 9403 3514 9403
      3514 9414 3510 9414 3506 9425 3506 9423
      3497 9424 3495 9445 3506 9444 3515 9426
      3528 9410 3542 9397 3551 9391 3552 9370
TIME...MOT...LOC 0253Z 270DEG 23KT 3544 9393 3527 9405 3511 9421 3498
9444

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
781 
WWUS54 KTSA 110305
SVSTSA

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

ARC047-131-110315-
/O.EXP.KTSA.SV.W.0195.000000T0000Z-211211T0315Z/
Franklin AR-Sebastian AR-
905 PM CST Fri Dec 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN FRANKLIN AND SOUTHERN
SEBASTIAN COUNTIES WILL EXPIRE AT 915 PM CST...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

A Tornado Watch remains in effect until 1100 PM CST for west central
Arkansas...and southeastern Oklahoma.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tulsa.

LAT...LON 3538 9371 3537 9375 3542 9380 3531 9381
      3532 9392 3523 9392 3523 9403 3514 9403
      3514 9414 3510 9414 3506 9425 3506 9423
      3497 9424 3495 9445 3506 9444 3515 9426
      3528 9410 3542 9397 3551 9391 3552 9370
TIME...MOT...LOC 0305Z 270DEG 23KT 3544 9383 3527 9395 3511 9411 3498
9435

$$

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, 7:22 PM CSTTornado WarningTSAWashington22 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

Nearby

Severe 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.