Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 19, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Mar 27, 2021, 6:09 PM CDT for Crawford County, Washington County, Arkansas; Adair County, Sequoyah County, Oklahoma. It was in force for 51 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
- Mar 27, 2021, 6:09 PM CDT (23:09 UTC)
- Expired
- Mar 27, 2021, 7:00 PM CDT
- In force
- 51 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Crawford County, AR, Washington County, AR, Adair County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 41 km from the middle of the area, began a volume at 23:11 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 12:00Z, 11.2 hours before the alert went out and 155 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1633 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 312 m²/s²
- 0-3 km storm-relative helicity
- 312 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
540
WUUS54 KTSA 272309
SVRTSA
ARC033-143-OKC001-135-280000-
/O.NEW.KTSA.SV.W.0019.210327T2309Z-210328T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
609 PM CDT Sat Mar 27 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Northwestern Crawford County in northwestern Arkansas...
South central Washington County in northwestern Arkansas...
Northeastern Sequoyah County in east central Oklahoma...
Southeastern Adair County in northeastern Oklahoma...
* Until 700 PM CDT.
* At 609 PM CDT, a severe thunderstorm was located 6 miles northeast
of Brushy, moving northeast 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...
Cedarville... Natural Dam...
Lee Creek... Short...
Odell... Uniontown...
LAT...LON 3552 9466 3565 9474 3585 9435 3563 9421
TIME...MOT...LOC 2309Z 245DEG 23KT 3561 9463
HAIL...1.00IN
WIND...60MPH
$$
Lacy3 follow-up statements
026
WWUS54 KTSA 272325
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
625 PM CDT Sat Mar 27 2021
OKC135-272335-
/O.CAN.KTSA.SV.W.0019.000000T0000Z-210328T0000Z/
Sequoyah OK-
625 PM CDT Sat Mar 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SEQUOYAH COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore the warning has been cancelled.
LAT...LON 3563 9421 3557 9446 3564 9448 3564 9473
3565 9474 3585 9435
TIME...MOT...LOC 2325Z 241DEG 23KT 3567 9453
$$
ARC033-143-OKC001-280000-
/O.CON.KTSA.SV.W.0019.000000T0000Z-210328T0000Z/
Crawford AR-Washington AR-Adair OK-
625 PM CDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHWESTERN CRAWFORD...SOUTH CENTRAL WASHINGTON AND SOUTHEASTERN
ADAIR COUNTIES...
At 625 PM CDT, a severe thunderstorm was located 7 miles north of
Short, moving northeast 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...
Cedarville... Natural Dam...
Lee Creek... Odell...
Uniontown...
LAT...LON 3563 9421 3557 9446 3564 9448 3564 9473
3565 9474 3585 9435
TIME...MOT...LOC 2325Z 241DEG 23KT 3567 9453
HAIL...1.00IN
WIND...60MPH
$$
Lacy302
WWUS54 KTSA 272344
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
644 PM CDT Sat Mar 27 2021
OKC001-272353-
/O.CAN.KTSA.SV.W.0019.000000T0000Z-210328T0000Z/
Adair OK-
644 PM CDT Sat Mar 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADAIR COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore the warning has been cancelled.
LAT...LON 3565 9442 3564 9447 3577 9450 3585 9435
3569 9425
TIME...MOT...LOC 2343Z 243DEG 21KT 3571 9445
$$
ARC033-143-280000-
/O.CON.KTSA.SV.W.0019.000000T0000Z-210328T0000Z/
Crawford AR-Washington AR-
644 PM CDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHWESTERN CRAWFORD AND SOUTH CENTRAL WASHINGTON COUNTIES...
At 643 PM CDT, a severe thunderstorm was located 5 miles northwest of
Natural Dam, moving northeast 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...
Lee Creek... Odell...
The storm has shown a weakening trend over the past 15 minutes. If
this trend continues, the warning will not be reissued downstream
and will be allowed to expire.
LAT...LON 3565 9442 3564 9447 3577 9450 3585 9435
3569 9425
TIME...MOT...LOC 2343Z 243DEG 21KT 3571 9445
HAIL...1.00IN
WIND...60MPH
$$
Lacy694
WWUS54 KTSA 272357
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
657 PM CDT Sat Mar 27 2021
ARC033-143-280007-
/O.EXP.KTSA.SV.W.0019.000000T0000Z-210328T0000Z/
Crawford AR-Washington AR-
657 PM CDT Sat Mar 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CRAWFORD AND
SOUTH CENTRAL WASHINGTON COUNTIES WILL EXPIRE AT 700 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire.
LAT...LON 3565 9442 3564 9447 3577 9450 3585 9435
3569 9425
TIME...MOT...LOC 2357Z 245DEG 23KT 3574 9438
$$
LacyThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 5:40 PM CDT | Special Weather Statement | TSA | Benton | 35 min |
| Mar 27, 6:59 PM CDT | Special Weather Statement | TSA | Washington | 31 min |
| Mar 27, 5:48 PM CDT | Special Weather Statement | TSA | Haskell, Sequoyah | 27 min |
| Mar 27, 6:03 PM CDT | Special Weather Statement | TSA | Sequoyah | 27 min |
| Mar 27, 6:06 PM CDT | Special Weather Statement | TSA | Sequoyah | 24 min |
| Mar 27, 6:22 PM CDT | Special Weather Statement | TSA | Sequoyah | 23 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.