Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 156, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Oct 2, 2021, 9:20 AM CDT for 6 counties in Oklahoma. It was in force for 40 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
- Oct 2, 2021, 9:20 AM CDT (14:20 UTC)
- Expired
- Oct 2, 2021, 10:00 AM CDT
- In force
- 40 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Craig County, OK, Delaware County, OK, Mayes County, OK, Nowata County, OK, Rogers County, OK, Wagoner County, OK
The radar
The Tulsa radar (KINX), 27 km from the middle of the area, began a volume at 14:19 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
Springfield, MO (KSGF), launched 12:00Z, 2.3 hours before the alert went out and 153 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
- 190 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 551 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
630
WUUS54 KTSA 021420
SVRTSA
OKC035-041-097-105-131-145-021500-
/O.NEW.KTSA.SV.W.0156.211002T1420Z-211002T1500Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
920 AM CDT Sat Oct 2 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southern Craig County in northeastern Oklahoma...
Rogers County in northeastern Oklahoma...
Northwestern Delaware County in northeastern Oklahoma...
Mayes County in northeastern Oklahoma...
Southeastern Nowata County in northeastern Oklahoma...
North central Wagoner County in northeastern Oklahoma...
* Until 1000 AM CDT.
* At 920 AM CDT, severe thunderstorms were located along a line
extending from 4 miles northwest of Verdigris to near Inola, moving
northeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations in or near the path include...
Claremore... Vinita...
Pryor... Owasso...
Pryor Creek... Catoosa...
Verdigris... Chouteau...
Chelsea... Inola...
Salina... Oologah...
Langley... Adair...
Ketchum... Spavinaw...
Foyil... Disney...
Big Cabin... Pensacola...
This includes Interstate 44 between mile markers 238 and 287.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3654 9482 3607 9543 3607 9558 3624 9582
3633 9581 3681 9541
TIME...MOT...LOC 1420Z 220DEG 37KT 3627 9576 3614 9548
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
693 follow-up statements
675
WWUS54 KTSA 021434
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
934 AM CDT Sat Oct 2 2021
OKC041-145-021444-
/O.CAN.KTSA.SV.W.0156.000000T0000Z-211002T1500Z/
Delaware OK-Wagoner OK-
934 AM CDT Sat Oct 2 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DELAWARE AND
NORTH CENTRAL WAGONER COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3612 9536 3633 9581 3672 9549 3656 9501
3639 9501
TIME...MOT...LOC 1434Z 227DEG 34KT 3638 9568 3636 9551 3622 9538
$$
OKC035-097-105-131-021500-
/O.CON.KTSA.SV.W.0156.000000T0000Z-211002T1500Z/
Craig OK-Rogers OK-Mayes OK-Nowata OK-
934 AM CDT Sat Oct 2 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT
FOR SOUTHERN CRAIG...ROGERS...MAYES AND SOUTHEASTERN NOWATA
COUNTIES...
At 934 AM CDT, severe thunderstorms were located along a line
extending from 5 miles south of Oologah to 5 miles south of Foyil to
3 miles northwest of Chouteau, moving northeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations in or near the path include...
Claremore... Pryor...
Pryor Creek... Chouteau...
Chelsea... Salina...
Oologah... Langley...
Adair... Ketchum...
Spavinaw... Foyil...
Disney... Big Cabin...
Pensacola... New Alluwe...
Hoot Owl... Cherokee State Park...
White Oak... Spavinaw State Park...
This includes Interstate 44 between mile markers 245 and 281.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3612 9536 3633 9581 3672 9549 3656 9501
3639 9501
TIME...MOT...LOC 1434Z 227DEG 34KT 3638 9568 3636 9551 3622 9538
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
69322
WWUS54 KTSA 021450
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
950 AM CDT Sat Oct 2 2021
OKC035-097-105-131-021500-
/O.CON.KTSA.SV.W.0156.000000T0000Z-211002T1500Z/
Craig OK-Rogers OK-Mayes OK-Nowata OK-
950 AM CDT Sat Oct 2 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT
FOR SOUTHERN CRAIG...NORTHERN ROGERS...NORTHERN MAYES AND
SOUTHEASTERN NOWATA COUNTIES...
At 949 AM CDT, severe thunderstorms were located along a line
extending from 6 miles north of Foyil to 3 miles southeast of Chelsea
to 3 miles east of Pryor, moving northeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations in or near the path include...
Claremore... Pryor...
Pryor Creek... Chelsea...
Salina... Oologah...
Langley... Adair...
Ketchum... Spavinaw...
Foyil... Disney...
Big Cabin... Pensacola...
New Alluwe... Hoot Owl...
Cherokee State Park... Spavinaw State Park...
White Oak... Sportsmen Acres Community...
This includes Interstate 44 between mile markers 248 and 281.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3621 9524 3633 9581 3672 9549 3656 9501
3639 9501
TIME...MOT...LOC 1449Z 217DEG 34KT 3652 9554 3649 9540 3632 9526
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
69751
WWUS54 KTSA 021504
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
1004 AM CDT Sat Oct 2 2021
OKC035-097-105-131-021513-
/O.EXP.KTSA.SV.W.0156.000000T0000Z-211002T1500Z/
Craig OK-Rogers OK-Mayes OK-Nowata OK-
1004 AM CDT Sat Oct 2 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CRAIG...NORTHERN
ROGERS...NORTHERN MAYES AND SOUTHEASTERN NOWATA COUNTIES HAS
EXPIRED...
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 has been allowed to expire.
However gusty winds to 50 mph are still possible with these
thunderstorms.
LAT...LON 3621 9524 3633 9581 3672 9549 3656 9501
3639 9501
TIME...MOT...LOC 1503Z 270DEG 37KT 3662 9544 3659 9530 3642 9516
$$
69The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 2, 8:31 AM CDT | Special Weather Statement | TSA | Tulsa | 44 min |
| Oct 2, 8:56 AM CDT | Areal Flood Advisory | TSA | Tulsa | 54 min |
| Oct 2, 9:13 AM CDT | Special Weather Statement | TSA | Mayes, Rogers | 62 min |
| Oct 2, 9:50 AM CDT | Areal Flood Warning | TSA | Tulsa | 115 min |
| Oct 2, 10:11 AM CDT | Special Weather Statement | TSA | Craig, Nowata | 49 min |
| Oct 2, 10:13 AM CDT | Special Weather Statement | TSA | Delaware | 47 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.