Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 138, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 17, 2021, 7:16 PM CDT for Washington County, Arkansas; Adair County, Oklahoma. It was in force for 44 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 17, 2021, 7:16 PM CDT (00:16 UTC)
- Expired
- Jul 17, 2021, 8:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Washington County, AR, Adair County, OK
The radar
The Western Arkansas radar (KSRX), 60 km from the middle of the area, began a volume at 00:20 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 nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 0.3 hours before the alert went out and 131 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
- 346 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 826 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -60 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
327
WUUS54 KTSA 180016
SVRTSA
ARC143-OKC001-180100-
/O.NEW.KTSA.SV.W.0138.210718T0016Z-210718T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
716 PM CDT Sat Jul 17 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southern Washington County in northwestern Arkansas...
Southeastern Adair County in northeastern Oklahoma...
* Until 800 PM CDT.
* At 715 PM CDT, a severe thunderstorm was located 7 miles southwest
of Lincoln, moving east at 25 mph.
HAZARD...60 mph wind gusts and half dollar 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...
Fayetteville... Stilwell...
Farmington... Prairie Grove...
Elkins... West Fork...
Lincoln... Westville...
Greenland... Winslow...
Blackburn... Baron...
Devils Den State Park... Brentwood...
Strickler... Drake Field Airport...
Walnut Grove... Woolsey...
Rhea... Canehill...
This includes Interstate 49 between mile markers 42 and 60.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3576 9444 3576 9448 3575 9449 3575 9462
3601 9462 3605 9404 3577 9399
TIME...MOT...LOC 0015Z 260DEG 24KT 3585 9449
HAIL...1.25IN
WIND...60MPH
$$
692 follow-up statements
311
WWUS54 KTSA 180031
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
731 PM CDT Sat Jul 17 2021
OKC001-180041-
/O.CAN.KTSA.SV.W.0138.000000T0000Z-210718T0100Z/
Adair OK-
731 PM CDT Sat Jul 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADAIR COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3576 9444 3576 9448 3600 9453 3605 9404
3577 9399
TIME...MOT...LOC 0031Z 260DEG 24KT 3587 9436
$$
ARC143-180100-
/O.CON.KTSA.SV.W.0138.000000T0000Z-210718T0100Z/
Washington AR-
731 PM CDT Sat Jul 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SOUTHERN WASHINGTON COUNTY...
At 731 PM CDT, a severe thunderstorm was located 3 miles northwest of
Strickler, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations in or near the path include...
Fayetteville... Prairie Grove...
Elkins... West Fork...
Lincoln... Greenland...
Winslow... Blackburn...
Devils Den State Park... Brentwood...
Strickler... Drake Field Airport...
Walnut Grove... Woolsey...
Canehill... Odell...
Morrow... Wyola...
Prairie Grove Battlefield State...
Sulphur City...
This includes Interstate 49 between mile markers 42 and 59.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3576 9444 3576 9448 3600 9453 3605 9404
3577 9399
TIME...MOT...LOC 0031Z 260DEG 24KT 3587 9436
HAIL...0.75IN
WIND...60MPH
$$
69731
WWUS54 KTSA 180053
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
753 PM CDT Sat Jul 17 2021
ARC143-180103-
/O.EXP.KTSA.SV.W.0138.000000T0000Z-210718T0100Z/
Washington AR-
753 PM CDT Sat Jul 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN WASHINGTON COUNTY
WILL EXPIRE AT 800 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds to 50 mph are still possible with this thunderstorm.
LAT...LON 3576 9444 3576 9448 3600 9453 3605 9404
3577 9399
TIME...MOT...LOC 0053Z 260DEG 24KT 3589 9420
$$
69The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 8:39 PM CDT | Special Weather Statement | TSA | Benton | 66 min |
| Jul 18, 1:09 AM CDT | Flash Flood Warning | TSA | Crawford, Franklin, Washington | 3 hr |
| Jul 18, 1:50 AM CDT | Areal Flood Advisory | TSA | Benton | 115 min |
| Jul 18, 2:18 AM CDT | Flash Flood Warning | TSA | Franklin | 5 hr |
| Jul 18, 4:11 AM CDT | Special Weather Statement | TSA | Crawford | 34 min |
| Jul 18, 4:50 AM CDT | Areal Flood Advisory | TSA | Crawford, Franklin, Sebastian | 3 hr |
| Jul 18, 4:56 AM CDT | Special Weather Statement | TSA | Sebastian | 34 min |
| Jul 18, 5:24 AM CDT | Flash Flood Warning | TSA | Crawford, Sebastian | 3 hr |
| Jul 18, 7:17 AM CDT | Areal Flood Warning | TSA | Franklin | 6 hr |
| Jul 17, 8:05 PM CDT | Special Weather Statement | TSA | Ottawa | 25 min |
| Jul 17, 8:50 PM CDT | Special Weather Statement | TSA | Osage | 40 min |
| Jul 17, 9:01 PM CDT | Special Weather Statement | TSA | Wagoner | 59 min |
| Jul 17, 9:44 PM CDT | Special Weather Statement | TSA | Rogers | 61 min |
| Jul 17, 10:01 PM CDT | Areal Flood Advisory | TSA | Craig, Ottawa | 119 min |
| Jul 17, 10:54 PM CDT | Areal Flood Advisory | TSA | Cherokee, Muskogee, Sequoyah | 2 hr |
| Jul 17, 11:41 PM CDT | Flash Flood Warning | TSA | Tulsa | 4 hr |
| Jul 18, 12:04 AM CDT | Flash Flood Warning | TSA | Muskogee | 5 hr |
| Jul 18, 1:43 AM CDT | Areal Flood Advisory | TSA | Cherokee, Muskogee, Wagoner | 2 hr |
| Jul 18, 2:11 AM CDT | Flash Flood Warning | TSA | Muskogee | 3 hr |
| Jul 18, 2:23 AM CDT | Areal Flood Advisory | TSA | Tulsa | 112 min |
| Jul 18, 2:49 AM CDT | Special Weather Statement | TSA | Muskogee | 26 min |
| Jul 18, 3:04 AM CDT | Flash Flood Warning | TSA | Muskogee, Wagoner | 2 hr |
| Jul 18, 3:15 AM CDT | Special Weather Statement | TSA | Muskogee | 30 min |
| Jul 18, 3:45 AM CDT | Areal Flood Warning | TSA | Tulsa | 3 hr |
| Jul 18, 5:14 AM CDT | Areal Flood Warning | TSA | Cherokee, Muskogee, Wagoner | 3 hr |
| Jul 18, 5:25 AM CDT | Areal Flood Warning | TSA | Muskogee, Wagoner | 50 min |
| Jul 18, 8:52 AM CDT | River Flood Advisory | TSA | Cherokee | 36 hr |
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.