Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 134, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 10, 2021, 9:20 PM CDT for Sequoyah County, Oklahoma; Crawford County, Franklin County, Sebastian County, Arkansas. It was in force for 40 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
- Jul 10, 2021, 9:20 PM CDT (02:20 UTC)
- Expired
- Jul 10, 2021, 10:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Crawford County, AR, Franklin County, AR, Sebastian County, AR, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 11 km from the middle of the area, began a volume at 02:21 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 10, 3:02 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 2.3 hours before the alert went out and 185 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
- 2329 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 756 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 193 m²/s²
- 0-3 km storm-relative helicity
- 261 m²/s²
- Significant tornado parameter
- 2.0
- Supercell composite
- 11.8
The text
As transmitted.
666
WUUS54 KTSA 110220
SVRTSA
ARC033-047-131-OKC135-110300-
/O.NEW.KTSA.SV.W.0134.210711T0220Z-210711T0300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
920 PM CDT Sat Jul 10 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southwestern Franklin County in west central Arkansas...
Southwestern Crawford County in northwestern Arkansas...
Central Sebastian County in west central Arkansas...
East central Sequoyah County in east central Oklahoma...
* Until 1000 PM CDT.
* At 919 PM CDT, a severe thunderstorm was located near Fort Smith,
moving southeast at 25 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations in or near the path include...
Fort Smith... Van Buren...
Charleston... Greenwood...
Barling... Lavaca...
Arkoma... Moffett...
Excelsior... Fort Smith Regional Airport...
Bloomer... Washburn...
Figure Five... Burnville...
Fort Chaffee... Jenny Lind...
Kibler... Central City...
Concord... Shibley...
This includes the following highways,
Interstate 40 in Arkansas between mile markers 0 and 9.
Interstate 40 in Oklahoma between mile markers 324 and 328.
Interstate 540 between mile markers 1 and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3525 9397 3523 9400 3523 9402 3521 9403
3514 9412 3514 9414 3513 9414 3508 9421
3531 9444 3538 9443 3538 9447 3537 9449
3535 9448 3540 9453 3554 9435
TIME...MOT...LOC 0219Z 317DEG 22KT 3538 9436
HAIL...0.88IN
WIND...60MPH
$$
Lacy3 follow-up statements
756
WWUS54 KTSA 110226
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
926 PM CDT Sat Jul 10 2021
OKC135-110236-
/O.CAN.KTSA.SV.W.0134.000000T0000Z-210711T0300Z/
Sequoyah OK-
926 PM CDT Sat Jul 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SEQUOYAH COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northwestern and west central Arkansas...and southeastern and east
central Oklahoma.
LAT...LON 3525 9397 3523 9400 3523 9402 3521 9403
3514 9412 3514 9414 3513 9414 3508 9421
3531 9444 3538 9443 3547 9444 3554 9435
TIME...MOT...LOC 0226Z 321DEG 21KT 3535 9434
$$
ARC033-047-131-110300-
/O.CON.KTSA.SV.W.0134.000000T0000Z-210711T0300Z/
Franklin AR-Crawford AR-Sebastian AR-
926 PM CDT Sat Jul 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR SOUTHWESTERN FRANKLIN...SOUTHWESTERN CRAWFORD AND CENTRAL
SEBASTIAN COUNTIES...
At 926 PM CDT, a severe thunderstorm was located over Fort Smith
Regional Airport, moving southeast at 25 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations in or near the path include...
Fort Smith... Van Buren...
Charleston... Greenwood...
Barling... Lavaca...
Arkoma... Excelsior...
Fort Smith Regional Airport... Bloomer...
Washburn... Figure Five...
Burnville... Fort Chaffee...
Jenny Lind... Kibler...
Central City... Concord...
Shibley... Crossroads...
This includes the following highways,
Interstate 40 in Arkansas between mile markers 0 and 9.
Interstate 540 between mile markers 1 and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3525 9397 3523 9400 3523 9402 3521 9403
3514 9412 3514 9414 3513 9414 3508 9421
3531 9444 3538 9443 3547 9444 3554 9435
TIME...MOT...LOC 0226Z 321DEG 21KT 3535 9434
HAIL...0.88IN
WIND...60MPH
$$
Lacy972
WWUS54 KTSA 110243
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
943 PM CDT Sat Jul 10 2021
ARC033-110252-
/O.CAN.KTSA.SV.W.0134.000000T0000Z-210711T0300Z/
Crawford AR-
943 PM CDT Sat Jul 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CRAWFORD COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northwestern and west central Arkansas...and southeastern and east
central Oklahoma.
LAT...LON 3525 9397 3523 9400 3523 9402 3521 9403
3514 9412 3514 9414 3513 9414 3508 9421
3531 9444 3541 9443 3545 9441 3542 9435
3538 9434 3535 9430 3536 9421 3539 9419
3538 9417 3538 9414
TIME...MOT...LOC 0242Z 317DEG 22KT 3528 9425
$$
ARC047-131-110300-
/O.CON.KTSA.SV.W.0134.000000T0000Z-210711T0300Z/
Franklin AR-Sebastian AR-
943 PM CDT Sat Jul 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR SOUTHWESTERN FRANKLIN AND CENTRAL SEBASTIAN COUNTIES...
At 942 PM CDT, a severe thunderstorm was located 3 miles northeast of
Jenny Lind, moving southeast 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...
Fort Smith... Charleston...
Greenwood... Barling...
Lavaca... Arkoma...
Bloomer... Washburn...
Excelsior... Fort Smith Regional Airport...
Burnville... Fort Chaffee...
Jenny Lind... Central City...
Crossroads... Witcherville...
Dayton... Mill Creek...
Rye Hill... Milltown...
This includes Interstate 540 between mile markers 5 and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3525 9397 3523 9400 3523 9402 3521 9403
3514 9412 3514 9414 3513 9414 3508 9421
3531 9444 3541 9443 3545 9441 3542 9435
3538 9434 3535 9430 3536 9421 3539 9419
3538 9417 3538 9414
TIME...MOT...LOC 0242Z 317DEG 22KT 3528 9425
HAIL...1.00IN
WIND...60MPH
$$
Lacy792
WWUS54 KTSA 110252
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
952 PM CDT Sat Jul 10 2021
ARC047-131-110302-
/O.EXP.KTSA.SV.W.0134.000000T0000Z-210711T0300Z/
Franklin AR-Sebastian AR-
952 PM CDT Sat Jul 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN FRANKLIN AND
CENTRAL SEBASTIAN COUNTIES WILL EXPIRE AT 1000 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northwestern and west central Arkansas...and southeastern and east
central Oklahoma.
LAT...LON 3525 9397 3523 9400 3523 9402 3521 9403
3514 9412 3514 9414 3513 9414 3508 9421
3531 9444 3541 9443 3545 9441 3542 9435
3538 9434 3535 9430 3536 9421 3539 9419
3538 9417 3538 9414
TIME...MOT...LOC 0252Z 317DEG 22KT 3524 9420
$$
LacyThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:08 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee | 52 min |
| Jul 10, 7:25 PM CDT | Special Weather Statement | TSA | Cherokee, Muskogee, Sequoyah | 35 min |
| Jul 10, 7:27 PM CDT | Special Weather Statement | TSA | Tulsa, Wagoner | 33 min |
| Jul 10, 7:35 PM CDT | Areal Flood Advisory | TSA | Cherokee, Creek, Mayes, Osage, Pawnee, Rogers and 2 more | 3 hr |
| Jul 10, 7:49 PM CDT | Special Weather Statement | TSA | Tulsa | 26 min |
| Jul 10, 7:51 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 39 min |
| Jul 10, 7:58 PM CDT | Special Weather Statement | TSA | Adair, Sequoyah | 32 min |
| Jul 10, 8:11 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Mayes, Muskogee, Rogers, Tulsa, Wagoner | 49 min |
| Jul 10, 8:23 PM CDT | Special Weather Statement | TSA | Sequoyah | 37 min |
| Jul 10, 8:26 PM CDT | Special Weather Statement | TSA | Creek, Okfuskee, Okmulgee | 49 min |
| Jul 10, 8:28 PM CDT | Special Weather Statement | TSA | Sequoyah | 32 min |
| Jul 10, 8:39 PM CDT | Severe Thunderstorm Warning | TSA | Creek, McIntosh, Okmulgee | 51 min |
| Jul 10, 8:40 PM CDT | Areal Flood Advisory | TSA | Adair, Cherokee, Creek, Muskogee, Okmulgee, Sequoyah and 2 more | 3 hr |
| Jul 10, 8:43 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Muskogee, Sequoyah, Wagoner | 29 min |
| Jul 10, 8:46 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 44 min |
| Jul 10, 9:17 PM CDT | Special Weather Statement | TSA | Okfuskee | 43 min |
| Jul 10, 9:23 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Muskogee, Okmulgee | 34 min |
| Jul 10, 9:56 PM CDT | Special Weather Statement | TSA | Latimer, Pittsburg | 49 min |
| Jul 10, 10:21 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer, LeFlore, Pittsburg | 39 min |
| Jul 10, 10:22 PM CDT | Areal Flood Advisory | TSA | Creek, Haskell, McIntosh, Muskogee, Okfuskee, Okmulgee and 1 more | 3 hr |
| Jul 10, 10:41 PM CDT | Special Weather Statement | TSA | Pittsburg | 34 min |
| Jul 10, 10:50 PM CDT | Special Weather Statement | TSA | Latimer, LeFlore | 25 min |
| Jul 10, 11:07 PM CDT | Special Weather Statement | TSA | LeFlore | 38 min |
| Jul 10, 11:10 PM CDT | Special Weather Statement | TSA | Pittsburg | 35 min |
| Jul 11, 12:05 AM CDT | Special Weather Statement | TSA | Pushmataha | 55 min |
| Jul 11, 12:43 AM CDT | Special Weather Statement | TSA | Choctaw, Pushmataha | 47 min |
| Jul 11, 1:28 AM CDT | Special Weather Statement | TSA | Choctaw | 62 min |
| Jul 11, 1:56 AM CDT | Areal Flood Advisory | TSA | Choctaw | 3 hr |
| Jul 11, 2:27 AM CDT | Special Weather Statement | TSA | Choctaw | 63 min |
| Jul 10, 8:50 PM CDT | Special Weather Statement | TSA | Crawford | 40 min |
| Jul 10, 9:51 PM CDT | Special Weather Statement | TSA | Sebastian | 24 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.