Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 2, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Feb 28, 2021, 11:39 AM CST for Choctaw County, Pushmataha County, Oklahoma. It was in force for 38 min. 1 report 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
- Feb 28, 2021, 11:39 AM CST (17:39 UTC)
- Expired
- Feb 28, 2021, 12:17 PM CST
- In force
- 38 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Choctaw County, OK, Pushmataha County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 28, 11:45 AM CST | HAIL 1 | Soper, OK |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 28, 10:43 AM CST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 5.7 hours before the alert went out and 202 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
- 1316 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 666 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 3.6
The text
As transmitted.
121
WUUS54 KTSA 281739
SVRTSA
OKC023-127-281830-
/O.NEW.KTSA.SV.W.0002.210228T1739Z-210228T1830Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
1139 AM CST Sun Feb 28 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southwestern Pushmataha County in southeastern Oklahoma...
Choctaw County in southeastern Oklahoma...
* Until 1230 PM CST.
* At 1139 AM CST, a severe thunderstorm was located 4 miles southeast
of Boswell, moving northeast at 55 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...
Hugo... Antlers...
Boswell... Sawyer...
Rattan... Soper...
Kent... Snow...
Goodland... Messer...
Hugo Lake State Park... Oleta...
Corinne... Fallon...
Sobol... Apple...
Speer... Dela...
Unger... Finley...
LAT...LON 3387 9581 3402 9592 3442 9541 3413 9516
3408 9516 3393 9559 3394 9560 3393 9560
3389 9572 3390 9575 3387 9577
TIME...MOT...LOC 1739Z 236DEG 48KT 3399 9579
HAIL...1.00IN
WIND...60MPH
$$2 follow-up statements
148
WWUS54 KTSA 281800
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
1200 PM CST Sun Feb 28 2021
OKC023-127-281830-
/O.CON.KTSA.SV.W.0002.000000T0000Z-210228T1830Z/
Pushmataha OK-Choctaw OK-
1200 PM CST Sun Feb 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CST
FOR SOUTH CENTRAL PUSHMATAHA AND NORTHEASTERN CHOCTAW COUNTIES...
At 1200 PM CST, a severe thunderstorm was located 4 miles north of
Messer, moving northeast at 55 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Rattan... Hugo Lake State Park...
Kent... Snow...
Oleta... Messer...
Corinne... Apple...
Speer... Dela...
Sobol...
LAT...LON 3411 9569 3442 9541 3413 9516 3408 9516
3401 9561
TIME...MOT...LOC 1800Z 237DEG 48KT 3414 9550
HAIL...1.00IN
WIND...60MPH
$$073
WWUS54 KTSA 281817
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
1217 PM CST Sun Feb 28 2021
OKC023-127-281827-
/O.CAN.KTSA.SV.W.0002.000000T0000Z-210228T1830Z/
Pushmataha OK-Choctaw OK-
1217 PM CST Sun Feb 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL PUSHMATAHA AND
NORTHEASTERN CHOCTAW COUNTIES 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.
A Severe Thunderstorm Watch remains in effect until 600 PM CST for
southeastern Oklahoma.
LAT...LON 3411 9569 3442 9541 3413 9516 3408 9516
3401 9561
TIME...MOT...LOC 1814Z 236DEG 48KT 3427 9527
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 9:15 PM CST | Dense Fog Advisory | TSA | Choctaw, Haskell, Latimer, McIntosh, Muskogee, Okfuskee and 3 more | 6 hr |
| Feb 28, 10:33 AM CST | Severe Thunderstorm Warning | TSA | Choctaw, Pushmataha | 42 min |
| Feb 28, 11:32 AM CST | Special Weather Statement | TSA | Choctaw | 43 min |
| Feb 28, 12:39 PM CST | Special Weather Statement | TSA | Choctaw | 36 min |
| Feb 28, 12:52 PM CST | Severe Thunderstorm Warning | TSA | Choctaw, Pushmataha | 23 min |
| Feb 28, 1:02 PM CST | Severe Thunderstorm Warning | TSA | Choctaw | 28 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.