Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 153, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Sep 21, 2021, 2:11 AM CDT for Washington County, Arkansas. It was in force for 32 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
- Sep 21, 2021, 2:11 AM CDT (07:11 UTC)
- Expired
- Sep 21, 2021, 2:43 AM CDT
- In force
- 32 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Washington County, AR
The radar
The Western Arkansas radar (KSRX), 69 km from the middle of the area, began a volume at 07:12 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, 7.2 hours before the alert went out and 120 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.
601
WUUS54 KTSA 210711
SVRTSA
ARC143-210800-
/O.NEW.KTSA.SV.W.0153.210921T0711Z-210921T0800Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
211 AM CDT Tue Sep 21 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southwestern Washington County in northwestern Arkansas...
* Until 300 AM CDT.
* At 211 AM CDT, a severe thunderstorm was located over Lincoln,
moving east at 20 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...
Prairie Grove... West Fork...
Lincoln... Greenland...
Strickler... Cincinnati...
Blackburn... Prairie Grove Battlefield
State...
Walnut Grove... Clyde...
Rhea... Canehill...
Hogeye... Summers...
Morrow... Viney Grove...
This includes Interstate 49 between mile markers 49 and 56.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3580 9420 3587 9451 3598 9453 3605 9451
3598 9414
TIME...MOT...LOC 0711Z 282DEG 19KT 3595 9445
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$1 follow-up statement
101
WWUS54 KTSA 210743
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
243 AM CDT Tue Sep 21 2021
ARC143-210752-
/O.CAN.KTSA.SV.W.0153.000000T0000Z-210921T0800Z/
Washington AR-
243 AM CDT Tue Sep 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WASHINGTON COUNTY
IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However heavy rain is
still possible with this thunderstorm.
LAT...LON 3580 9420 3587 9451 3598 9453 3605 9451
3598 9414
TIME...MOT...LOC 0740Z 282DEG 19KT 3591 9425
$$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, 1:29 AM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 46 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.