Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 186, NWS Tulsa, OK

November 10, 2021Benton County, Arkansas; Delaware County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Nov 10, 2021, 8:42 PM CST for Benton County, Arkansas; Delaware County, Oklahoma. It was in force for 33 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
Nov 10, 2021, 8:42 PM CST (02:42 UTC)
Expired
Nov 10, 2021, 9:15 PM CST
In force
33 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Benton County, AR, Delaware County, OK

The radar

The Tulsa radar (KINX), 90 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Nov 10, 3:26 PM CSTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.7 hours before the alert went out and 91 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 2021-11-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2021-11-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.19395878Sfc1 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
5 J/kg
Mixed-layer CIN
-156 J/kg
Mixed-layer LCL
1136 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

088 
WUUS54 KTSA 110242
SVRTSA
ARC007-OKC041-110315-
/O.NEW.KTSA.SV.W.0186.211111T0242Z-211111T0315Z/

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

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Northwestern Benton County in northwestern Arkansas...
  Southern Delaware County in northeastern Oklahoma...

* Until 915 PM CST.

* At 842 PM CST, a severe thunderstorm was located 6 miles northwest
  of Colcord, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations in or near the path include...
  Jay...                            Gravette...
  Decatur...                        Colcord...
  Maysville...                      Lake Eucha State Park...
  Cherokee City...                  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

&&

LAT...LON 3632 9433 3622 9489 3640 9494 3650 9460
      3650 9444
TIME...MOT...LOC 0242Z 247DEG 39KT 3631 9479 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
Snider
2 follow-up statements
021 
WWUS54 KTSA 110259
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
859 PM CST Wed Nov 10 2021

OKC041-110309-
/O.CAN.KTSA.SV.W.0186.000000T0000Z-211111T0315Z/
Delaware OK-
859 PM CST Wed Nov 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN DELAWARE COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 PM CST for
northwestern Arkansas.

LAT...LON 3632 9433 3628 9458 3646 9461 3650 9461
      3650 9444
TIME...MOT...LOC 0259Z 247DEG 39KT 3638 9458 

$$

ARC007-110315-
/O.CON.KTSA.SV.W.0186.000000T0000Z-211111T0315Z/
Benton AR-
859 PM CST Wed Nov 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CST
FOR NORTHWESTERN BENTON COUNTY...

At 859 PM CST, a severe thunderstorm was located over Maysville,
moving northeast at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations in or near the path include...
Gravette...                       Decatur...
Cherokee City...                  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

&&

LAT...LON 3632 9433 3628 9458 3646 9461 3650 9461
      3650 9444
TIME...MOT...LOC 0259Z 247DEG 39KT 3638 9458 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Lacy
102 
WWUS54 KTSA 110306 RRA
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
906 PM CST Wed Nov 10 2021

ARC007-110316-
/O.EXP.KTSA.SV.W.0186.000000T0000Z-211111T0315Z/
Benton AR-
906 PM CST Wed Nov 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BENTON COUNTY
WILL EXPIRE AT 915 PM CST...
                
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 Severe Thunderstorm Watch remains in effect until 1000 PM CST for
northwestern Arkansas.

LAT...LON 3632 9433 3628 9458 3646 9461 3650 9461
      3650 9444
TIME...MOT...LOC 0306Z 247DEG 39KT 3641 9449 

$$

Lacy

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 10, 9:13 PM CSTSpecial Weather StatementTSABenton, Washington47 min
Nov 10, 9:55 PM CSTAreal Flood AdvisoryTSACrawford, Sebastian3 hr
Nov 10, 10:08 PM CSTSpecial Weather StatementTSASebastian37 min
Nov 10, 10:34 PM CSTSpecial Weather StatementTSAFranklin, Sebastian41 min
Nov 10, 6:00 PM CSTSpecial Weather StatementTSAOsage15 min
Nov 10, 6:17 PM CSTSevere Thunderstorm WarningTSACreek, Pawnee43 min
Nov 10, 6:20 PM CSTSpecial Weather StatementTSAWashington25 min
Nov 10, 6:26 PM CSTSpecial Weather StatementTSAOsage34 min
Nov 10, 6:38 PM CSTSpecial Weather StatementTSATulsa37 min
Nov 10, 6:43 PM CSTSevere Thunderstorm WarningTSACreek, Osage, Pawnee, Tulsa47 min
Nov 10, 6:47 PM CSTSpecial Weather StatementTSANowata, Washington43 min
Nov 10, 6:54 PM CSTSpecial Weather StatementTSANowata36 min
Nov 10, 7:00 PM CSTSpecial Weather StatementTSATulsa30 min
Nov 10, 7:01 PM CSTSpecial Weather StatementTSACreek29 min
Nov 10, 7:07 PM CSTSevere Thunderstorm WarningTSACreek, Rogers, Tulsa, Wagoner38 min
Nov 10, 7:20 PM CSTSevere Thunderstorm WarningTSANowata25 min
Nov 10, 7:20 PM CSTTornado WarningTSARogers, Tulsa10 min
Nov 10, 7:22 PM CSTSevere Thunderstorm WarningTSANowata, Rogers23 min
Nov 10, 7:23 PM CSTAreal Flood AdvisoryTSACreek, Okmulgee, Osage, Rogers, Tulsa, Wagoner3 hr
Nov 10, 7:26 PM CSTTornado Warning Tornado observedTSARogers, Tulsa, Wagoner34 min
Nov 10, 7:29 PM CSTSevere Thunderstorm WarningTSACherokee, Mayes, Rogers, Tulsa, Wagoner46 min
Nov 10, 7:41 PM CSTSpecial Weather StatementTSAOkmulgee34 min
Nov 10, 7:48 PM CSTSpecial Weather StatementTSACraig27 min
Nov 10, 7:51 PM CSTTornado WarningTSAMayes, Rogers39 min
Nov 10, 8:04 PM CSTSpecial Weather StatementTSAPittsburg26 min
Nov 10, 8:06 PM CSTSpecial Weather StatementTSAChoctaw24 min
Nov 10, 8:14 PM CSTSpecial Weather StatementTSADelaware, Ottawa46 min
Nov 10, 8:15 PM CSTTornado WarningTSADelaware, Mayes30 min
Nov 10, 8:18 PM CSTSpecial Weather StatementTSAAdair, Cherokee57 min
Nov 10, 8:24 PM CSTSpecial Weather StatementTSAMuskogee36 min
Nov 10, 8:33 PM CSTSpecial Weather StatementTSAPittsburg27 min
Nov 10, 8:42 PM CSTSevere Thunderstorm WarningTSAAdair, Cherokee, Delaware33 min
Nov 10, 8:50 PM CSTSpecial Weather StatementTSAPushmataha25 min
Nov 10, 8:51 PM CSTSpecial Weather StatementTSAMuskogee24 min
Nov 10, 8:55 PM CSTSevere Thunderstorm WarningTSAAdair, Cherokee, Muskogee35 min
Nov 10, 9:05 PM CSTAreal Flood AdvisoryTSACherokee, McIntosh, Mayes, Muskogee, Okmulgee, Wagoner3 hr
Nov 10, 9:17 PM CSTSpecial Weather StatementTSAHaskell, Muskogee, Sequoyah43 min
Nov 10, 9:19 PM CSTSpecial Weather StatementTSAChoctaw26 min
Nov 10, 9:22 PM CSTSpecial Weather StatementTSAPushmataha23 min
Nov 10, 9:44 PM CSTSevere Thunderstorm WarningTSALatimer, LeFlore, Pittsburg, Pushmataha46 min
Nov 10, 9:52 PM CSTSpecial Weather StatementTSAHaskell, Sequoyah38 min
Nov 10, 10:30 PM CSTSpecial Weather StatementTSALeFlore45 min
Nov 10, 10:49 PM CSTAreal Flood AdvisoryTSALatimer, Pushmataha3 hr
Nov 10, 11:17 PM CSTSpecial Weather StatementTSALeFlore28 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2021Severe Thunderstorm Warnings in Oklahoma, 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.