Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 179, NWS Tulsa, OK

October 24, 2021Crawford County, Franklin County, Sebastian County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Oct 24, 2021, 8:07 PM CDT for Crawford County, Franklin County, Sebastian County, Arkansas. It was in force for 38 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 24, 2021, 8:07 PM CDT (01:07 UTC)
Expired: Oct 24, 2021, 8:45 PM CDT
In force: 38 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Crawford County, AR, 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 01:10 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 24, 3:47 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.1 hours before the alert went out and 158 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1534 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 846 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 296 m²/s²
0-3 km storm-relative helicity: 317 m²/s²
Significant tornado parameter: 2.8
Supercell composite: 12.3

Open this sounding in Storm Lab

The text

As transmitted.

117 
WUUS54 KTSA 250107
SVRTSA
ARC033-047-131-250145-
/O.NEW.KTSA.SV.W.0179.211025T0107Z-211025T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
807 PM CDT Sun Oct 24 2021

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Southwestern Franklin County in west central Arkansas...
  Central Crawford County in northwestern Arkansas...
  Northeastern Sebastian County in west central Arkansas...

* Until 845 PM CDT.

* At 807 PM CDT, a severe thunderstorm was located 3 miles northwest
  of Rudy, moving east at 30 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...
  Van Buren...                      Ozark...
  Cedarville...                     Mountainburg...
  Alma...                           Mulberry...
  Dyer...                           Branch...
  Rudy...                           Figure Five...
  Kibler...                         Concord...
  Jethro...                         Shibley...
  Watalula...                       Piney...
  Toney...                          Peter Pender...
  Vesta...                          Cecil...

This includes the following highways,
 Interstate 40 in Arkansas between mile markers 6 and 35.
 Interstate 49 between mile markers 22 and 32.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3549 9441 3569 9434 3559 9379 3531 9394
TIME...MOT...LOC 0107Z 292DEG 25KT 3558 9430 

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

$$

2 follow-up statements

150 
WWUS54 KTSA 250135
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
835 PM CDT Sun Oct 24 2021

ARC131-250144-
/O.CAN.KTSA.SV.W.0179.000000T0000Z-211025T0145Z/
Sebastian AR-
835 PM CDT Sun Oct 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SEBASTIAN 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 CDT for northwestern
and west central Arkansas.

LAT...LON 3536 9391 3542 9408 3564 9407 3559 9379
TIME...MOT...LOC 0134Z 292DEG 25KT 3551 9408 

$$

ARC033-047-250145-
/O.CON.KTSA.SV.W.0179.000000T0000Z-211025T0145Z/
Franklin AR-Crawford AR-
835 PM CDT Sun Oct 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR WEST CENTRAL FRANKLIN AND EAST CENTRAL CRAWFORD COUNTIES...

At 834 PM CDT, a severe thunderstorm was located over Mulberry,
moving east at 30 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...                          Mulberry...
Piney...                          Toney...
Cecil...                          Lonelm...
Watalula...                       Cravens...
Meg...                            Jethro...

This includes Interstate 40 in Arkansas between mile markers 22 and
35.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

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

&&

LAT...LON 3536 9391 3542 9408 3564 9407 3559 9379
TIME...MOT...LOC 0134Z 292DEG 25KT 3551 9408 

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

$$

360 
WWUS54 KTSA 250142
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
842 PM CDT Sun Oct 24 2021

ARC033-047-250152-
/O.EXP.KTSA.SV.W.0179.000000T0000Z-211025T0145Z/
Franklin AR-Crawford AR-
842 PM CDT Sun Oct 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL FRANKLIN AND EAST
CENTRAL CRAWFORD COUNTIES WILL EXPIRE AT 845 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

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

LAT...LON 3536 9391 3542 9408 3564 9407 3559 9379
TIME...MOT...LOC 0142Z 292DEG 25KT 3549 9402 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 24, 7:36 PM CDT	Special Weather Statement	TSA	Crawford	24 min
Oct 24, 7:59 PM CDT	Special Weather Statement	TSA	Crawford	31 min
Oct 24, 8:21 PM CDT	Special Weather Statement	TSA	Sebastian	24 min
Oct 24, 8:40 PM CDT	Special Weather Statement	TSA	Sebastian	50 min
Oct 24, 8:41 PM CDT	Special Weather Statement	TSA	Franklin	34 min
Oct 24, 9:05 PM CDT	Special Weather Statement	TSA	Sebastian	10 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2021 Every 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.