Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 84, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 10, 2021, 7:44 PM CDT for Choctaw County, Oklahoma. It was in force for 61 min. 6 reports 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
- May 10, 2021, 7:44 PM CDT (00:44 UTC)
- Expired
- May 10, 2021, 8:45 PM CDT
- In force
- 61 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 50.0 mph
County Choctaw County, OK
The radar
The Western Arkansas radar (KSRX), 191 km from the middle of the area, began a volume at 00:44 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 |
|---|---|---|---|
| May 10, 7:54 PM CDT | HAIL 2.75 | 8 S Boswell, OK | PHOTO SEEN ON FACEBOOK OF MULTIPLE HAILSTONES AT LEAST TO THE SIZE OF BASEBALLS OFF LAKE WEST ROAD SOUTH OF BOSWELL. EXACT LOCATION AND TIME ESTIMATED VIA RADAR. VEHICLE DAMAGE ALSO REPORTED. |
| May 10, 8:00 PM CDT | HAIL 1.75 | 6 S Unger, OK | UP TO A LITTLE BIGGER THAN GOLF BALL HAIL RELAYED VIA COUNTY EM FACEBOOK SOUTH OF UNGER. LOCATION AND TIME ESTIMATED FROM RADAR. |
| May 10, 8:12 PM CDT | HAIL 1 | 3 Nnw Gay, OK | REPORT WITH PHOTO RELAYED VIA TWITTER. LOCATION ESTIMATED VIA RADAR AND TIME PROVIDED IN REPORT. |
| May 10, 8:13 PM CDT | HAIL 1.75 | 4 Wnw Gay, OK | REPORT WITH PHOTO RELAYED VIA BROADCAST MEDIA TWITTER. LOCATION ESTIMATED FROM RADAR AND TIME PROVIDED. |
| May 10, 8:15 PM CDT | HAIL 1 | 2 Ene Hugo, OK | |
| May 10, 8:20 PM CDT | HAIL 1 | Hugo, OK | RELAYED VIA COUNTY EM FACEBOOK PAGE. TIME ESTIMATED VIA RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 0.7 hours before the alert went out and 240 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.
771
WUUS54 KTSA 110044
SVRTSA
OKC023-110145-
/O.NEW.KTSA.SV.W.0084.210511T0044Z-210511T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
744 PM CDT Mon May 10 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Choctaw County in southeastern Oklahoma...
* Until 845 PM CDT.
* At 743 PM CDT, a severe thunderstorm was located 12 miles southeast
of Bennington, moving northeast at 45 mph.
HAZARD...Golf 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...
Hugo... Boswell...
Fort Towson... Sawyer...
Soper... Kent...
Goodland... Messer...
Hugo Lake State Park... Grant...
Ord... Fallon...
Apple... Speer...
Unger... Gay...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!
&&
LAT...LON 3387 9584 3391 9588 3392 9591 3395 9594
3397 9594 3416 9568 3415 9516 3413 9516
3392 9538 3388 9550 3389 9551 3388 9554
3393 9556 3394 9560 3392 9561 3391 9564
3391 9567 3389 9569 3390 9575 3387 9577
TIME...MOT...LOC 0043Z 239DEG 40KT 3384 9594
HAIL...1.75IN
WIND...<50MPH
$$4 follow-up statements
161
WWUS54 KTSA 110101
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
801 PM CDT Mon May 10 2021
OKC023-110145-
/O.CON.KTSA.SV.W.0084.000000T0000Z-210511T0145Z/
Choctaw OK-
801 PM CDT Mon May 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR CENTRAL CHOCTAW COUNTY...
At 801 PM CDT, a severe thunderstorm was located 6 miles south of
Soper, moving northeast at 45 mph.
HAZARD...Golf ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
Locations in or near the path include...
Hugo... Sawyer...
Soper... Kent...
Goodland... Messer...
Hugo Lake State Park... Grant...
Fallon... Apple...
Speer... Gay...
Unger...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
&&
LAT...LON 3396 9583 3416 9568 3415 9516 3413 9516
3391 9549 3393 9556 3394 9560 3392 9561
3391 9564 3391 9567 3389 9569 3390 9575
3389 9575
TIME...MOT...LOC 0101Z 239DEG 40KT 3394 9573
HAIL...1.75IN
WIND...<50MPH
$$231
WWUS54 KTSA 110114
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
814 PM CDT Mon May 10 2021
OKC023-110145-
/O.CON.KTSA.SV.W.0084.000000T0000Z-210511T0145Z/
Choctaw OK-
814 PM CDT Mon May 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHEASTERN CHOCTAW COUNTY...
At 814 PM CDT, a severe thunderstorm was located 3 miles northwest of
Goodland, moving northeast at 45 mph.
HAZARD...Golf 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...
Hugo... Hugo Lake State Park...
Goodland... Messer...
Apple... Speer...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
&&
LAT...LON 3401 9566 3416 9559 3415 9535 3415 9521
3395 9558
TIME...MOT...LOC 0114Z 239DEG 40KT 3402 9558
HAIL...1.75IN
WIND...<50MPH
$$582 WWUS54 KTSA 110132 SVSTSA Severe Weather Statement National Weather Service Tulsa OK 832 PM CDT Mon May 10 2021 OKC023-110145- /O.CON.KTSA.SV.W.0084.000000T0000Z-210511T0145Z/ Choctaw OK- 832 PM CDT Mon May 10 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR NORTHEASTERN CHOCTAW COUNTY... At 832 PM CDT, a severe thunderstorm was located near Hugo Lake State Park, moving northeast at 45 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations in or near the path include... Hugo Lake State Park... Apple... PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3408 9545 3415 9543 3415 9521 3404 9541 TIME...MOT...LOC 0132Z 238DEG 40KT 3410 9538 HAIL...1.00IN WIND...<50MPH $$
723
WWUS54 KTSA 110140
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
840 PM CDT Mon May 10 2021
OKC023-110150-
/O.EXP.KTSA.SV.W.0084.000000T0000Z-210511T0145Z/
Choctaw OK-
840 PM CDT Mon May 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHOCTAW COUNTY
WILL EXPIRE AT 845 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.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tulsa.
LAT...LON 3408 9545 3415 9543 3415 9521 3404 9541
TIME...MOT...LOC 0140Z 239DEG 40KT 3415 9529
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 9:04 PM CDT | Special Weather Statement | TSA | Choctaw | 41 min |
| May 10, 9:18 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 26 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.