Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 146, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 13, 2021, 4:25 PM CDT for 4 counties in Arkansas. It was in force for 50 min. 2 reports 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
- Aug 13, 2021, 4:25 PM CDT (21:25 UTC)
- Expired
- Aug 13, 2021, 5:15 PM CDT
- In force
- 50 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR
The radar
The Springfield radar (KSGF), 115 km from the middle of the area, began a volume at 21:26 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 |
|---|---|---|---|
| Aug 13, 4:55 PM CDT | TSTM WND DMG | Bentonville, AR | LARGE LIMBS DOWN IN NORTH BENTONVILLE. TIME ESTIMATED FROM RADAR. |
| Aug 13, 5:05 PM CDT | TSTM WND DMG | Springdale, AR | LARGE LIMB DOWN. |
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 12:00Z, 9.4 hours before the alert went out and 69 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
- 592 J/kg
- Mixed-layer CIN
- -167 J/kg
- Mixed-layer LCL
- 904 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
329
WUUS54 KTSA 132125
SVRTSA
ARC007-015-087-143-132215-
/O.NEW.KTSA.SV.W.0146.210813T2125Z-210813T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
425 PM CDT Fri Aug 13 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Benton County in northwestern Arkansas...
Northwestern Madison County in northwestern Arkansas...
Carroll County in northwestern Arkansas...
Northern Washington County in northwestern Arkansas...
* Until 515 PM CDT.
* At 425 PM CDT, severe thunderstorms were located along a line
extending from 2 miles northwest of Grandview to 6 miles south of
Garfield to 4 miles west of Gentry, moving southeast at 15 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... Berryville...
Eureka Springs... Lowell...
Gentry... Green Forest...
Tontitown... Bethel Heights...
Cave Springs... Decatur...
Highfill... Beaver...
Springtown... Hindsville...
Carrollton... Rudd...
This includes Interstate 49 between mile markers 63 and 89.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3611 9385 3604 9454 3635 9459 3642 9402
3650 9368 3650 9349 3626 9330
TIME...MOT...LOC 2125Z 327DEG 14KT 3647 9365 3637 9398 3628 9456
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$2 follow-up statements
266
WWUS54 KTSA 132154
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
454 PM CDT Fri Aug 13 2021
ARC007-015-087-143-132215-
/O.CON.KTSA.SV.W.0146.000000T0000Z-210813T2215Z/
Benton AR-Madison AR-Carroll AR-Washington AR-
454 PM CDT Fri Aug 13 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR BENTON...NORTHWESTERN MADISON...CARROLL AND NORTHERN WASHINGTON
COUNTIES...
At 454 PM CDT, severe thunderstorms were located along a line
extending from 2 miles southeast of Grandview to 2 miles northeast of
War Eagle to 3 miles northeast of Siloam Springs, moving southeast at
15 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations in or near the path include...
Fayetteville... Springdale...
Rogers... Bentonville...
Siloam Springs... Berryville...
Eureka Springs... Lowell...
Gentry... Green Forest...
Tontitown... Bethel Heights...
Cave Springs... Decatur...
Highfill... Beaver...
Springtown... Hindsville...
Carrollton... Rudd...
This includes Interstate 49 between mile markers 63 and 89.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3611 9385 3604 9454 3635 9459 3642 9402
3650 9368 3650 9349 3626 9330
TIME...MOT...LOC 2154Z 326DEG 14KT 3640 9360 3628 9391 3623 9451
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$821
WWUS54 KTSA 132211
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
511 PM CDT Fri Aug 13 2021
ARC007-015-087-143-132221-
/O.EXP.KTSA.SV.W.0146.000000T0000Z-210813T2215Z/
Benton AR-Madison AR-Carroll AR-Washington AR-
511 PM CDT Fri Aug 13 2021
...THE SEVERE THUNDERSTORM WARNING FOR BENTON...NORTHWESTERN
MADISON...CARROLL AND NORTHERN WASHINGTON COUNTIES WILL EXPIRE AT 515
PM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose 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 these thunderstorms.
LAT...LON 3611 9385 3604 9454 3635 9459 3642 9402
3650 9368 3650 9349 3626 9330
TIME...MOT...LOC 2211Z 327DEG 14KT 3636 9357 3624 9388 3619 9448
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 2:16 PM CDT | Heat Advisory | TSA | 4 hr | |
| Aug 13, 3:55 PM CDT | Special Weather Statement | TSA | Benton | 50 min |
| Aug 13, 4:03 PM CDT | Severe Thunderstorm Warning | TSA | Benton | 42 min |
| Aug 13, 5:09 PM CDT | Areal Flood Advisory | TSA | Benton | 3 hr |
| Aug 13, 5:13 PM CDT | Special Weather Statement | TSA | Carroll, Madison, Washington | 47 min |
| Aug 13, 5:18 PM CDT | Flash Flood Warning | TSA | Benton | 3 hr |
Nearby
Severe Thunderstorm Warnings in Arkansas, 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.