Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 126, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 10, 2021, 6:43 PM CDT for 5 counties in Oklahoma. It was in force for 47 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
- Jul 10, 2021, 6:43 PM CDT (23:43 UTC)
- Expired
- Jul 10, 2021, 7:30 PM CDT
- In force
- 47 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Adair County, OK, Cherokee County, OK, Delaware County, OK, Mayes County, OK, Wagoner County, OK
The radar
The Tulsa radar (KINX), 50 km from the middle of the area, began a volume at 23:43 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 10, 3:02 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.7 hours before the alert went out and 134 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
- 917 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 703 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 1.8
The text
As transmitted.
060
WUUS54 KTSA 102343
SVRTSA
OKC001-021-041-097-145-110030-
/O.NEW.KTSA.SV.W.0126.210710T2343Z-210711T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
643 PM CDT Sat Jul 10 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southern Delaware County in northeastern Oklahoma...
Southeastern Mayes County in northeastern Oklahoma...
Northern Adair County in northeastern Oklahoma...
Northeastern Wagoner County in northeastern Oklahoma...
Cherokee County in east central Oklahoma...
* Until 730 PM CDT.
* At 643 PM CDT, severe thunderstorms were located along a line
extending from near Spavinaw to 3 miles east of Locust Grove to 2
miles southwest of Chouteau, moving southeast at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations in or near the path include...
Tahlequah... Chouteau...
Westville... Locust Grove...
Salina... West Siloam Springs...
Langley... Colcord...
Kansas... Hulbert...
Spavinaw... Watts...
Oaks... Hoot Owl...
Christie... Peggs...
Rose... Leach...
Chloeta... Scraper...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3632 9459 3590 9452 3584 9515 3609 9544
3620 9544 3629 9524 3648 9509
TIME...MOT...LOC 2343Z 298DEG 36KT 3639 9501 3619 9510 3615 9537
HAIL...0.75IN
WIND...60MPH
$$
Lacy2 follow-up statements
352
WWUS54 KTSA 110002
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
702 PM CDT Sat Jul 10 2021
OKC001-021-041-097-145-110030-
/O.CON.KTSA.SV.W.0126.000000T0000Z-210711T0030Z/
Delaware OK-Mayes OK-Adair OK-Wagoner OK-Cherokee OK-
702 PM CDT Sat Jul 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHWESTERN DELAWARE...SOUTHERN MAYES...NORTHERN ADAIR...
NORTHEASTERN WAGONER AND CHEROKEE COUNTIES...
At 702 PM CDT, severe thunderstorms were located along a line
extending from 4 miles north of Leach to 5 miles east of Peggs to 6
miles northeast of Wagoner, moving southeast at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations in or near the path include...
Tahlequah... Westville...
Locust Grove... Kansas...
Hulbert... Oaks...
Eldon... Proctor...
Christie... Peggs...
Rose... Leach...
Chloeta... Scraper...
Twin Oaks... Baron...
Mazie... Lost City...
Murphy...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3624 9472 3590 9452 3584 9515 3609 9544
3617 9528 3632 9507 3644 9497
TIME...MOT...LOC 0002Z 315DEG 30KT 3626 9492 3606 9501 3602 9528
HAIL...0.75IN
WIND...60MPH
$$
Lacy170
WWUS54 KTSA 110026
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
726 PM CDT Sat Jul 10 2021
OKC001-021-041-097-145-110036-
/O.EXP.KTSA.SV.W.0126.000000T0000Z-210711T0030Z/
Delaware OK-Mayes OK-Adair OK-Wagoner OK-Cherokee OK-
726 PM CDT Sat Jul 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN DELAWARE...
SOUTHERN MAYES...NORTHERN ADAIR...NORTHEASTERN WAGONER AND CHEROKEE
COUNTIES WILL EXPIRE AT 730 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern and east central Oklahoma.
LAT...LON 3624 9472 3590 9452 3584 9515 3609 9544
3617 9528 3632 9507 3644 9497
TIME...MOT...LOC 0026Z 298DEG 36KT 3615 9466 3595 9475 3591 9502
$$
LacyThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 11:00 AM CDT | Special Weather Statement | TSA | Delaware | 30 min |
| Jul 10, 4:14 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 46 min |
| Jul 10, 4:24 PM CDT | Special Weather Statement | TSA | Washington | 36 min |
| Jul 10, 4:43 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Osage, Washington | 47 min |
| Jul 10, 5:09 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata, Rogers, Washington | 51 min |
| Jul 10, 5:16 PM CDT | Areal Flood Advisory | TSA | Nowata, Osage, Washington | 3 hr |
| Jul 10, 5:27 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Osage, Washington | 48 min |
| Jul 10, 5:41 PM CDT | Flash Flood Warning | TSA | Nowata, Osage, Washington | 3 hr |
| Jul 10, 5:49 PM CDT | Severe Thunderstorm Warning | TSA | Mayes, Nowata, Rogers | 41 min |
| Jul 10, 5:52 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 38 min |
| Jul 10, 6:06 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee, Rogers, Tulsa, Washington | 39 min |
| Jul 10, 6:19 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Mayes, Rogers, Wagoner | 41 min |
| Jul 10, 6:24 PM CDT | Special Weather Statement | TSA | Pawnee | 36 min |
| Jul 10, 6:34 PM CDT | Areal Flood Advisory | TSA | Nowata, Osage, Pawnee, Rogers, Tulsa, Washington | 3 hr |
| Jul 10, 6:40 PM CDT | Special Weather Statement | TSA | Pawnee, Tulsa | 50 min |
| Jul 10, 6:47 PM CDT | Severe Thunderstorm Warning | TSA | Mayes, Osage, Rogers, Tulsa, Wagoner, Washington | 43 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.