Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 152, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Sep 21, 2021, 1:29 AM CDT for Benton County, Washington County, Arkansas; Adair County, Oklahoma. It was in force for 46 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
- Sep 21, 2021, 1:29 AM CDT (06:29 UTC)
- Expired
- Sep 21, 2021, 2:15 AM CDT
- In force
- 46 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Benton County, AR, Washington County, AR, Adair County, OK
The radar
The Western Arkansas radar (KSRX), 96 km from the middle of the area, began a volume at 06:31 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 21, 1:45 AM CDT | TSTM WND DMG | 1 Wsw Rogers, AR | NUMEROUS TREE BRANCHES BROKEN, WITH THE LARGEST BEING UP TO 5 INCHES IN DIAMETER. NEAR THE INTERSECTION OF OAK STREET AND 13TH STREET IN ROGERS. REPORT RELAYED VIA TWITTER. TIME ESTIMATED VIA RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 6.5 hours before the alert went out and 90 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
- 842 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 1973 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 205 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
921
WUUS54 KTSA 210629
SVRTSA
ARC007-143-OKC001-210715-
/O.NEW.KTSA.SV.W.0152.210921T0629Z-210921T0715Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
129 AM CDT Tue Sep 21 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southern Benton County in northwestern Arkansas...
Northern Washington County in northwestern Arkansas...
Northern Adair County in northeastern Oklahoma...
* Until 215 AM CDT.
* At 129 AM CDT, severe thunderstorms were located along a line
extending from 2 miles northwest of Cave Springs to 4 miles east of
Watts to 2 miles southwest of Christie, 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...
Fayetteville... Springdale...
Rogers... Bentonville...
Siloam Springs... Lowell...
Farmington... Prairie Grove...
Tontitown... Bethel Heights...
Lincoln... Cave Springs...
Westville... Greenland...
Highfill... Watts...
Springtown... Northwest Arkansas Regional
Air...
Cincinnati... Hobbs State Park...
This includes Interstate 49 between mile markers 55 and 84.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3624 9387 3623 9389 3618 9391 3611 9398
3589 9429 3591 9480 3595 9480 3635 9432
3631 9387
TIME...MOT...LOC 0629Z 271DEG 25KT 3629 9426 3611 9449 3593 9472
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$2 follow-up statements
423
WWUS54 KTSA 210651
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
151 AM CDT Tue Sep 21 2021
ARC007-143-OKC001-210715-
/O.CON.KTSA.SV.W.0152.000000T0000Z-210921T0715Z/
Benton AR-Washington AR-Adair OK-
151 AM CDT Tue Sep 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR SOUTHEASTERN BENTON...CENTRAL WASHINGTON AND CENTRAL ADAIR
COUNTIES...
At 150 AM CDT, severe thunderstorms were located along a line
extending from 3 miles northeast of Lowell to 5 miles northwest of
Farmington to 3 miles south of Westville, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Fayetteville... Springdale...
Rogers... Lowell...
Farmington... Prairie Grove...
Tontitown... Bethel Heights...
Lincoln... Westville...
Greenland... Cincinnati...
Hobbs State Park... Baron...
War Eagle... Drake Field Airport...
Johnson... Elm Springs...
Goshen... Walnut Grove...
This includes Interstate 49 between mile markers 55 and 80.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3624 9387 3623 9389 3618 9391 3611 9398
3589 9429 3591 9473 3603 9459 3624 9426
3633 9409 3631 9387
TIME...MOT...LOC 0650Z 270DEG 25KT 3629 9409 3611 9432 3595 9456
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$292
WWUS54 KTSA 210703
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
203 AM CDT Tue Sep 21 2021
ARC007-210712-
/O.CAN.KTSA.SV.W.0152.000000T0000Z-210921T0715Z/
Benton AR-
203 AM CDT Tue Sep 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BENTON COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning has been cancelled.
LAT...LON 3589 9429 3591 9473 3603 9459 3610 9445
3610 9439 3613 9439 3614 9436 3611 9398
TIME...MOT...LOC 0702Z 283DEG 20KT 3596 9444
$$
ARC143-OKC001-210715-
/O.CON.KTSA.SV.W.0152.000000T0000Z-210921T0715Z/
Washington AR-Adair OK-
203 AM CDT Tue Sep 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR NORTHERN WASHINGTON AND CENTRAL ADAIR COUNTIES...
At 202 AM CDT, a severe thunderstorm was located over Lincoln, moving
east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Fayetteville... Farmington...
Prairie Grove... Lincoln...
Westville... Greenland...
Cincinnati... Drake Field Airport...
Baron... Johnson...
Goshen... Prairie Grove Battlefield State...
Walnut Grove... Savoy...
Wedington... Rhea...
Canehill... Hogeye...
Summers... Wheeler...
This includes Interstate 49 between mile markers 55 and 68.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3589 9429 3591 9473 3603 9459 3610 9445
3610 9439 3613 9439 3614 9436 3611 9398
TIME...MOT...LOC 0702Z 283DEG 20KT 3596 9444
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 11:44 PM CDT | Severe Thunderstorm Warning | TSA | Benton | 46 min |
| Sep 21, 12:12 AM CDT | Special Weather Statement | TSA | Benton | 33 min |
| Sep 21, 12:46 AM CDT | Special Weather Statement | TSA | Benton, Carroll | 44 min |
| Sep 21, 1:17 AM CDT | Special Weather Statement | TSA | Washington | 43 min |
| Sep 21, 2:11 AM CDT | Severe Thunderstorm Warning | TSA | Washington | 32 min |
| Sep 20, 9:45 PM CDT | Special Weather Statement | TSA | Ottawa | 30 min |
| Sep 20, 11:21 PM CDT | Special Weather Statement | TSA | Delaware, Mayes | 39 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.