Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 83, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 9, 2021, 3:17 AM CDT for 4 counties in Arkansas. It was in force for 43 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
- May 9, 2021, 3:17 AM CDT (08:17 UTC)
- Expired
- May 9, 2021, 4:00 AM CDT
- In force
- 43 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Crawford County, AR, Franklin County, AR, Madison County, AR, Washington County, AR
The radar
The Western Arkansas radar (KSRX), 68 km from the middle of the area, began a volume at 08:21 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 nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 8.3 hours before the alert went out and 128 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
- 2 J/kg
- Mixed-layer CIN
- -429 J/kg
- Mixed-layer LCL
- 2095 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 370 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
515
WUUS54 KTSA 090817
SVRTSA
ARC033-047-087-143-090900-
/O.NEW.KTSA.SV.W.0083.210509T0817Z-210509T0900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
317 AM CDT Sun May 9 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southwestern Madison County in northwestern Arkansas...
Northern Franklin County in west central Arkansas...
Northeastern Crawford County in northwestern Arkansas...
Southeastern Washington County in northwestern Arkansas...
* Until 400 AM CDT.
* At 317 AM CDT, a severe thunderstorm was located 4 miles west of
Chester, moving east at 45 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...
Mountainburg... Winslow...
Chester... St. Paul...
Cass... Saint Paul...
Pettigrew... Devils Den State Park...
Lake Fort Smith... Lee Creek...
Fern... Boston...
Dutton... Bidville...
Redding... Delaney...
Brashears... Patrick...
Combs... Locke...
This includes Interstate 49 between mile markers 30 and 43.
LAT...LON 3577 9370 3565 9370 3560 9434 3576 9436
3592 9361 3576 9358
TIME...MOT...LOC 0817Z 256DEG 38KT 3568 9426
HAIL...1.00IN
WIND...60MPH
$$2 follow-up statements
455
WWUS54 KTSA 090830
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
330 AM CDT Sun May 9 2021
ARC033-047-087-143-090900-
/O.CON.KTSA.SV.W.0083.000000T0000Z-210509T0900Z/
Madison AR-Franklin AR-Crawford AR-Washington AR-
330 AM CDT Sun May 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR SOUTHWESTERN MADISON...NORTHERN FRANKLIN...NORTHEASTERN CRAWFORD
AND SOUTHEASTERN WASHINGTON COUNTIES...
At 329 AM CDT, a severe thunderstorm was located 4 miles northeast of
Lake Fort Smith, moving east at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Winslow... St. Paul...
Cass... Saint Paul...
Pettigrew... Boston...
Dutton... Bidville...
Redding... Delaney...
Brashears... Patrick...
Combs... Locke...
Turners Bend... Mount Gayler...
Taft...
LAT...LON 3577 9370 3565 9370 3566 9413 3580 9415
3592 9361 3576 9358
TIME...MOT...LOC 0829Z 257DEG 40KT 3571 9407
HAIL...1.00IN
WIND...60MPH
$$289
WWUS54 KTSA 090849
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
349 AM CDT Sun May 9 2021
ARC033-143-090858-
/O.CAN.KTSA.SV.W.0083.000000T0000Z-210509T0900Z/
Crawford AR-Washington AR-
349 AM CDT Sun May 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CRAWFORD AND
SOUTHEASTERN WASHINGTON COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore the warning has been cancelled.
LAT...LON 3577 9370 3565 9370 3565 9387 3585 9391
3592 9361 3576 9358
TIME...MOT...LOC 0848Z 256DEG 38KT 3576 9382
$$
ARC047-087-090900-
/O.CON.KTSA.SV.W.0083.000000T0000Z-210509T0900Z/
Madison AR-Franklin AR-
349 AM CDT Sun May 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR SOUTHWESTERN MADISON AND NORTHEASTERN FRANKLIN COUNTIES...
At 348 AM CDT, a severe thunderstorm was located 5 miles north of
Cass, moving east at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
St. Paul... Cass...
Saint Paul... Pettigrew...
Boston... Dutton...
Redding... Delaney...
Brashears... Patrick...
Combs... Turners Bend...
Taft...
LAT...LON 3577 9370 3565 9370 3565 9387 3585 9391
3592 9361 3576 9358
TIME...MOT...LOC 0848Z 256DEG 38KT 3576 9382
HAIL...1.00IN
WIND...60MPH
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 2:15 AM CDT | Severe Thunderstorm Warning | TSA | Benton | 30 min |
| May 9, 3:01 AM CDT | Special Weather Statement | TSA | Crawford | 29 min |
| May 9, 3:47 AM CDT | Special Weather Statement | TSA | Carroll | 28 min |
| May 9, 4:02 AM CDT | Special Weather Statement | TSA | Madison | 28 min |
| May 9, 10:12 AM CDT | Special Weather Statement | TSA | Carroll | 33 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.