Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 173, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Oct 15, 2021, 2:26 AM CDT for Okfuskee County, Okmulgee County, Oklahoma. It was in force for 49 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 15, 2021, 2:26 AM CDT (07:26 UTC)
- Expired
- Oct 15, 2021, 3:15 AM CDT
- In force
- 49 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Okfuskee County, OK, Okmulgee County, OK
The radar
The Norman radar (KTLX), 85 km from the middle of the area, began a volume at 07:28 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
Norman, OK (KOUN), launched 00:00Z, 7.4 hours before the alert went out and 99 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
- 421 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 1034 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
The text
As transmitted.
467
WUUS54 KTSA 150726
SVRTSA
OKC107-111-150815-
/O.NEW.KTSA.SV.W.0173.211015T0726Z-211015T0815Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
226 AM CDT Fri Oct 15 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southwestern Okmulgee County in northeastern Oklahoma...
Okfuskee County in east central Oklahoma...
* Until 315 AM CDT.
* At 226 AM CDT, severe thunderstorms were located along a line
extending from Welty to 2 miles west of Okemah to 5 miles southwest
of Cromwell, moving east at 35 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...
Okmulgee... Okemah...
Okfuskee... Henryetta...
Boley... Weleetka...
Schulter... Bearden...
Castle... Clearview...
Okmulgee State Park... Welty...
Pharoah... Bryant...
Mason...
This includes Interstate 40 in Oklahoma between mile markers 212 and
239.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3542 9655 3544 9652 3545 9654 3564 9649
3564 9619 3567 9619 3569 9590 3538 9597
3537 9598 3529 9599 3529 9644 3546 9644
3546 9647 3543 9649 3542 9652 3539 9654
3539 9656
TIME...MOT...LOC 0726Z 266DEG 32KT 3562 9639 3543 9635 3528 9652
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$3 follow-up statements
741
WWUS54 KTSA 150740
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
240 AM CDT Fri Oct 15 2021
OKC107-111-150815-
/O.CON.KTSA.SV.W.0173.000000T0000Z-211015T0815Z/
Okmulgee OK-Okfuskee OK-
240 AM CDT Fri Oct 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR SOUTHWESTERN OKMULGEE AND OKFUSKEE COUNTIES...
At 240 AM CDT, severe thunderstorms were located along a line
extending from 2 miles west of Okfuskee to 4 miles north of Pharoah
to 4 miles southeast of Cromwell, moving east at 35 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Okmulgee... Okemah...
Okfuskee... Henryetta...
Weleetka... Schulter...
Bearden... Castle...
Clearview... Okmulgee State Park...
Pharoah... Bryant...
Mason...
This includes Interstate 40 in Oklahoma between mile markers 213 and
239.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3564 9637 3564 9619 3567 9619 3569 9590
3538 9597 3537 9598 3529 9599 3529 9644
TIME...MOT...LOC 0740Z 272DEG 29KT 3560 9627 3549 9614 3529 9641
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$235
WWUS54 KTSA 150756
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
256 AM CDT Fri Oct 15 2021
OKC107-111-150815-
/O.CON.KTSA.SV.W.0173.000000T0000Z-211015T0815Z/
Okmulgee OK-Okfuskee OK-
256 AM CDT Fri Oct 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR SOUTHWESTERN OKMULGEE AND SOUTHEASTERN OKFUSKEE COUNTIES...
At 256 AM CDT, severe thunderstorms were located along a line
extending from 2 miles northeast of Okmulgee State Park to 2 miles
northwest of Grayson to 2 miles west of Weleetka, moving east at 40
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...
Okmulgee... Henryetta...
Weleetka... Schulter...
Clearview... Okmulgee State Park...
Pharoah... Bryant...
This includes Interstate 40 in Oklahoma between mile markers 224 and
239.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3567 9614 3569 9590 3538 9597 3537 9598
3529 9599 3530 9627
TIME...MOT...LOC 0756Z 263DEG 33KT 3564 9603 3553 9590 3533 9617
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$355
WWUS54 KTSA 150809
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
309 AM CDT Fri Oct 15 2021
OKC107-111-150818-
/O.EXP.KTSA.SV.W.0173.000000T0000Z-211015T0815Z/
Okmulgee OK-Okfuskee OK-
309 AM CDT Fri Oct 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN OKMULGEE AND
SOUTHEASTERN OKFUSKEE COUNTIES WILL EXPIRE AT 315 AM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tulsa.
Remember, a Severe Thunderstorm Warning still remains in effect for
southeastern Okmulgee County, roughly to the east of Highway 75.
LAT...LON 3567 9614 3569 9590 3538 9597 3537 9598
3529 9599 3530 9627
TIME...MOT...LOC 0808Z 266DEG 32KT 3565 9590 3554 9577 3534 9604
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 14, 10:27 PM CDT | Dense Fog Advisory | TSA | Adair, Cherokee, Delaware | 5 hr |
| Oct 15, 1:41 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 49 min |
| Oct 15, 1:44 AM CDT | Special Weather Statement | TSA | Creek, Tulsa | 46 min |
| Oct 15, 2:29 AM CDT | Special Weather Statement | TSA | Rogers, Tulsa | 46 min |
| Oct 15, 2:37 AM CDT | Areal Flood Advisory | TSA | Creek, Osage, Tulsa | 3 hr |
| Oct 15, 2:51 AM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Muskogee, Okmulgee | 39 min |
| Oct 15, 3:13 AM CDT | Special Weather Statement | TSA | Mayes, Rogers, Wagoner | 47 min |
| Oct 15, 3:29 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee, McIntosh, Muskogee, Wagoner | 46 min |
| Oct 15, 3:32 AM CDT | Areal Flood Advisory | TSA | Muskogee, Okmulgee, Tulsa, Wagoner | 118 min |
| Oct 15, 3:53 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Muskogee, Sequoyah | 52 min |
| Oct 15, 4:02 AM CDT | Special Weather Statement | TSA | Delaware | 43 min |
| Oct 15, 4:35 AM CDT | Special Weather Statement | TSA | Adair, Sequoyah | 55 min |
| Oct 15, 7:51 AM CDT | Areal Flood Advisory | TSA | Haskell, LeFlore, Muskogee, Sequoyah | 2 hr |
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.