Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 1, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Feb 28, 2021, 10:33 AM CST for Choctaw County, Pushmataha County, Oklahoma. It was in force for 42 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, 10:33 AM CST (16:33 UTC)
- Expired
- Feb 28, 2021, 11:15 AM CST
- In force
- 42 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Choctaw County, OK, Pushmataha County, OK
The radar
The Western Arkansas radar (KSRX), 186 km from the middle of the area, began a volume at 16:33 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 28, 10:44 AM CST | HAIL 1 | Boswell, OK |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 4.6 hours before the alert went out and 190 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
- 679 m above ground
- 0-6 km bulk shear
- 92 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
828
WUUS54 KTSA 281633
SVRTSA
OKC023-127-281715-
/O.NEW.KTSA.SV.W.0001.210228T1633Z-210228T1715Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
1033 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...
Northwestern Choctaw County in southeastern Oklahoma...
* Until 1115 AM CST.
* At 1033 AM CST, a severe thunderstorm was located over Bennington,
moving northeast at 50 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations in or near the path include...
Antlers... Boswell...
Rattan... Soper...
Kent... Messer...
Moyers... Kosoma...
Kellond... Dunbar...
Oleta... Eubanks...
Corinne... Sobol...
Darwin... Apple...
Speer... Dela...
Unger... Finley...
LAT...LON 3392 9591 3395 9594 3412 9594 3413 9595
3414 9595 3415 9597 3416 9578 3430 9578
3450 9551 3417 9521 3392 9589
TIME...MOT...LOC 1633Z 234DEG 44KT 3399 9602
HAIL...1.50IN
WIND...60MPH
$$2 follow-up statements
601
WWUS54 KTSA 281704
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
1104 AM CST Sun Feb 28 2021
OKC023-281713-
/O.CAN.KTSA.SV.W.0001.000000T0000Z-210228T1715Z/
Choctaw OK-
1104 AM CST Sun Feb 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CHOCTAW COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 600 PM CST for
southeastern Oklahoma.
LAT...LON 3416 9578 3430 9578 3450 9551 3417 9521
3416 9567
TIME...MOT...LOC 1703Z 236DEG 40KT 3418 9567
$$
OKC127-281715-
/O.CON.KTSA.SV.W.0001.000000T0000Z-210228T1715Z/
Pushmataha OK-
1104 AM CST Sun Feb 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 AM CST
FOR SOUTHWESTERN PUSHMATAHA COUNTY...
At 1103 AM CST, a severe thunderstorm was located 4 miles southwest
of Antlers, moving northeast 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...
Antlers... Rattan...
Moyers... Kosoma...
Kellond... Dunbar...
Oleta... Eubanks...
Corinne... Darwin...
Dela... Finley...
LAT...LON 3416 9578 3430 9578 3450 9551 3417 9521
3416 9567
TIME...MOT...LOC 1703Z 236DEG 40KT 3418 9567
HAIL...1.00IN
WIND...60MPH
$$360
WWUS54 KTSA 281710
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
1110 AM CST Sun Feb 28 2021
OKC127-281720-
/O.EXP.KTSA.SV.W.0001.000000T0000Z-210228T1715Z/
Pushmataha OK-
1110 AM CST Sun Feb 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN PUSHMATAHA COUNTY
WILL EXPIRE AT 1115 AM CST...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire. However small hail,
gusty winds and heavy rain are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 600 PM CST for
southeastern Oklahoma.
LAT...LON 3416 9578 3430 9578 3450 9551 3417 9521
3416 9567
TIME...MOT...LOC 1710Z 234DEG 44KT 3423 9559
$$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, 11:32 AM CST | Special Weather Statement | TSA | Choctaw | 43 min |
| Feb 28, 11:39 AM CST | Severe Thunderstorm Warning | TSA | Choctaw, Pushmataha | 38 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; radar from the NEXRAD Level II archive.