Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 85, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 10, 2021, 9:18 PM CDT for Choctaw County, Oklahoma. It was in force for 26 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 10, 2021, 9:18 PM CDT (02:18 UTC)
- Expired
- May 10, 2021, 9:44 PM CDT
- In force
- 26 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 50.0 mph
County Choctaw County, OK
The radar
The Western Arkansas radar (KSRX), 177 km from the middle of the area, began a volume at 02:18 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
Shreveport, LA (KSHV), launched 00:00Z, 2.3 hours before the alert went out and 217 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
- 474 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
496
WUUS54 KTSA 110218
SVRTSA
OKC023-110315-
/O.NEW.KTSA.SV.W.0085.210511T0218Z-210511T0315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
918 PM CDT Mon May 10 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southeastern Choctaw County in southeastern Oklahoma...
* Until 1015 PM CDT.
* At 917 PM CDT, a severe thunderstorm was located 7 miles south of
Sawyer, moving northeast at 40 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect
damage to roofs, siding, windows, and vehicles.
* Locations in or near the path include...
Fort Towson... Raymond Gary State Park...
Ord... Huskey...
Swink... Frogville...
LAT...LON 3387 9545 3388 9546 3389 9546 3388 9548
3391 9550 3415 9516 3394 9516 3396 9523
3394 9525 3389 9526 3390 9526 3391 9527
3390 9528 3388 9528 3387 9529 3389 9533
3387 9534
TIME...MOT...LOC 0217Z 245DEG 35KT 3390 9540
HAIL...1.50IN
WIND...<50MPH
$$3 follow-up statements
136
WWUS54 KTSA 110225
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
925 PM CDT Mon May 10 2021
OKC023-110315-
/O.CON.KTSA.SV.W.0085.000000T0000Z-210511T0315Z/
Choctaw OK-
925 PM CDT Mon May 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR SOUTHEASTERN CHOCTAW COUNTY...
At 925 PM CDT, a severe thunderstorm was located 6 miles southwest of
Raymond Gary State Park, moving east at 40 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
Locations in or near the path include...
Fort Towson... Raymond Gary State Park...
Huskey... Swink...
Frogville...
LAT...LON 3387 9537 3389 9539 3394 9540 3411 9516
3394 9516 3396 9523 3394 9525 3389 9526
3390 9526 3391 9527 3390 9528 3388 9528
3387 9529 3389 9533 3387 9534
TIME...MOT...LOC 0225Z 255DEG 36KT 3392 9531
HAIL...1.50IN
WIND...<50MPH
$$738
WWUS54 KTSA 110239
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
939 PM CDT Mon May 10 2021
OKC023-110315-
/O.CON.KTSA.SV.W.0085.000000T0000Z-210511T0315Z/
Choctaw OK-
939 PM CDT Mon May 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR EAST CENTRAL CHOCTAW COUNTY...
At 939 PM CDT, a severe thunderstorm was located 6 miles east of
Raymond Gary State Park, moving east at 35 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
Locations in or near the path include...
Raymond Gary State Park... Swink...
LAT...LON 3398 9526 3403 9526 3411 9516 3394 9516
3396 9523 3394 9525
TIME...MOT...LOC 0239Z 256DEG 32KT 3402 9515
HAIL...1.00IN
WIND...<50MPH
$$184
WWUS54 KTSA 110244
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
944 PM CDT Mon May 10 2021
OKC023-110253-
/O.CAN.KTSA.SV.W.0085.000000T0000Z-210511T0315Z/
Choctaw OK-
944 PM CDT Mon May 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CHOCTAW COUNTY IS
CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.
LAT...LON 3398 9526 3403 9526 3411 9516 3394 9516
3396 9523 3394 9525
TIME...MOT...LOC 0243Z 245DEG 35KT 3404 9510
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 7:44 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 61 min |
| May 10, 9:04 PM CDT | Special Weather Statement | TSA | Choctaw | 41 min |
| May 10, 9:26 PM CDT | Special Weather Statement | TSA | Choctaw | 34 min |
| May 11, 11:35 AM CDT | Special Weather Statement | TSA | Pittsburg | 25 min |
| May 11, 12:02 PM CDT | Special Weather Statement | TSA | Haskell, Latimer, McIntosh | 43 min |
| May 11, 12:42 PM CDT | Special Weather Statement | TSA | Adair, Cherokee, Haskell, LeFlore, Sequoyah | 48 min |
Nearby
Severe 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.