Alert archive / Oklahoma / Tornado Warnings in 2021

Tornado Warning 34, NWS Tulsa, OK

October 10, 20214 counties in Oklahoma

NWS Tulsa, OK issued this tornado warning at Oct 10, 2021, 10:58 PM CDT for 4 counties in Oklahoma. It was in force for 47 min. 2 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: Oct 10, 2021, 10:58 PM CDT (03:58 UTC)
Expired: Oct 10, 2021, 11:45 PM CDT
In force: 47 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Haskell County, OK, McIntosh County, OK, Muskogee County, OK, Pittsburg County, OK

The radar

The Western Arkansas radar (KSRX), 79 km from the middle of the area, began a volume at 04:02 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
Oct 10, 11:39 PM CDT	TORNADO	2 Nw Webbers Falls, OK	TRAINED SPOTTER REPORTS A ROPE TORNADO BEING ILLUMINATED BY LIGHTNING. THIS CORRELATES WELL WITH A LOWERING OF CC ON RADAR.
Oct 10, 11:45 PM CDT	TSTM WND GST 61	1 Wnw Webbers Falls, OK	WEBBERS FALL MESONET MEASURED A GUST TO 61MPH.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 10, 9:24 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.0 hours before the alert went out and 201 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1436 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 1199 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 255 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 8.8

Open this sounding in Storm Lab

The text

As transmitted.

713 
WFUS54 KTSA 110358
TORTSA
OKC061-091-101-121-110445-
/O.NEW.KTSA.TO.W.0034.211011T0358Z-211011T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
1058 PM CDT Sun Oct 10 2021

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Northwestern Haskell County in southeastern Oklahoma...
  Southeastern McIntosh County in southeastern Oklahoma...
  Northeastern Pittsburg County in southeastern Oklahoma...
  Southeastern Muskogee County in east central Oklahoma...

* Until 1145 PM CDT.
    
* At 1058 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near Eufaula, moving northeast at 45 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations in or near the path include...
  Eufaula...                        Warner...
  Porum...                          Webbers Falls...
  Arrowhead State Park...           Briartown...
  Enterprise...                     

This includes Interstate 40 in Oklahoma between mile markers 269 and
288.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3561 9517 3555 9513 3553 9513 3550 9512
      3549 9510 3546 9508 3546 9507 3535 9499
      3514 9562 3532 9569
TIME...MOT...LOC 0358Z 241DEG 40KT 3525 9557 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

3 follow-up statements

814 
WWUS54 KTSA 110413
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1113 PM CDT Sun Oct 10 2021

OKC121-110422-
/O.CAN.KTSA.TO.W.0034.000000T0000Z-211011T0445Z/
Pittsburg OK-
1113 PM CDT Sun Oct 10 2021

...THE TORNADO WARNING FOR NORTHEASTERN PITTSBURG COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 200 AM CDT for southeastern
and east central Oklahoma.

LAT...LON 3561 9517 3555 9513 3553 9513 3550 9512
      3549 9510 3546 9508 3546 9507 3535 9499
      3522 9545 3529 9545 3530 9549 3530 9551
      3540 9555
TIME...MOT...LOC 0412Z 232DEG 43KT 3536 9542 

$$

OKC061-091-101-110445-
/O.CON.KTSA.TO.W.0034.000000T0000Z-211011T0445Z/
Haskell OK-McIntosh OK-Muskogee OK-
1113 PM CDT Sun Oct 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
NORTHWESTERN HASKELL...EAST CENTRAL MCINTOSH AND SOUTHEASTERN
MUSKOGEE COUNTIES...
    
At 1112 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles west of Porum, moving northeast at 50 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations in or near the path include...
Warner...                         Porum...
Webbers Falls...                  Briartown...

This includes Interstate 40 in Oklahoma between mile markers 269 and
288.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3561 9517 3555 9513 3553 9513 3550 9512
      3549 9510 3546 9508 3546 9507 3535 9499
      3522 9545 3529 9545 3530 9549 3530 9551
      3540 9555
TIME...MOT...LOC 0412Z 232DEG 43KT 3536 9542 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

950 
WWUS54 KTSA 110425
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1125 PM CDT Sun Oct 10 2021

OKC061-091-101-110445-
/O.CON.KTSA.TO.W.0034.000000T0000Z-211011T0445Z/
Haskell OK-McIntosh OK-Muskogee OK-
1125 PM CDT Sun Oct 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR NORTH
CENTRAL HASKELL...EAST CENTRAL MCINTOSH AND SOUTHEASTERN MUSKOGEE
COUNTIES...
    
At 1125 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles southeast of Warner, moving northeast at 45 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations in or near the path include...
Warner...                         Porum...
Webbers Falls...                  

This includes Interstate 40 in Oklahoma between mile markers 269 and
288.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3561 9517 3555 9513 3553 9513 3550 9512
      3549 9510 3546 9508 3537 9501 3530 9534
      3546 9544
TIME...MOT...LOC 0425Z 241DEG 40KT 3543 9526 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

104 
WWUS54 KTSA 110444
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1144 PM CDT Sun Oct 10 2021

OKC061-091-101-110453-
/O.EXP.KTSA.TO.W.0034.000000T0000Z-211011T0445Z/
Haskell OK-McIntosh OK-Muskogee OK-
1144 PM CDT Sun Oct 10 2021

...THE TORNADO WARNING FOR NORTH CENTRAL HASKELL...EAST CENTRAL
MCINTOSH AND SOUTHEASTERN MUSKOGEE COUNTIES WILL EXPIRE AT 1145 PM
CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 200 AM CDT for southeastern
and east central Oklahoma.

LAT...LON 3561 9517 3555 9513 3553 9513 3550 9512
      3549 9510 3546 9508 3537 9501 3530 9534
      3546 9544
TIME...MOT...LOC 0443Z 241DEG 40KT 3552 9505 

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 10, 8:04 PM CDT	Flash Flood Warning	TSA	Osage, Pawnee	4 hr
Oct 10, 8:05 PM CDT	Special Weather Statement	TSA	Pawnee	55 min
Oct 10, 8:21 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	54 min
Oct 10, 8:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TSA	Creek, Okfuskee	64 min
Oct 10, 9:17 PM CDT	Special Weather Statement	TSA	Osage	58 min
Oct 10, 9:28 PM CDT	Tornado Warning	TSA	Creek, Okfuskee	24 min
Oct 10, 9:36 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TSA	Creek, McIntosh, Okfuskee, Okmulgee, Tulsa	54 min
Oct 10, 9:55 PM CDT	Special Weather Statement	TSA	Osage	50 min
Oct 10, 10:01 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TSA	McIntosh, Pittsburg	59 min
Oct 10, 10:05 PM CDT	Tornado Warning	TSA	Okmulgee, Tulsa, Wagoner	25 min
Oct 10, 10:09 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Rogers, Tulsa, Washington	36 min
Oct 10, 10:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TSA	McIntosh, Muskogee, Okmulgee, Rogers, Tulsa, Wagoner	56 min
Oct 10, 10:21 PM CDT	Tornado Warning	TSA	McIntosh, Pittsburg	39 min
Oct 10, 10:29 PM CDT	Tornado Warning	TSA	Tulsa, Wagoner	46 min
Oct 10, 10:41 PM CDT	Areal Flood Advisory	TSA	Cherokee, Haskell, McIntosh, Muskogee, Okfuskee, Okmulgee and 3 more	3 hr
Oct 10, 10:41 PM CDT	Tornado Warning	TSA	McIntosh, Muskogee, Okmulgee	34 min
Oct 10, 10:43 PM CDT	Tornado Warning	TSA	Wagoner	32 min
Oct 10, 10:53 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Latimer, Pittsburg, Pushmataha	67 min
Oct 10, 10:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TSA	Cherokee, Delaware, McIntosh, Mayes, Muskogee, Rogers and 1 more	64 min
Oct 10, 11:05 PM CDT	Tornado Warning	TSA	Mayes, Rogers, Wagoner	40 min
Oct 10, 11:33 PM CDT	Tornado Warning	TSA	Cherokee, Muskogee, Sequoyah	42 min
Oct 10, 11:43 PM CDT	Areal Flood Advisory	TSA	Latimer, LeFlore, Pushmataha	70 min
Oct 10, 11:48 PM CDT	Areal Flood Advisory	TSA	Adair, Cherokee, Delaware, Mayes	110 min
Oct 10, 11:55 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes, Ottawa	50 min
Oct 11, 12:07 AM CDT	Tornado Warning	TSA	Adair, Cherokee	38 min
Oct 11, 12:09 AM CDT	Tornado Warning	TSA	Delaware	39 min
Oct 11, 1:18 AM CDT	Special Weather Statement	TSA	Osage, Pawnee	42 min
Oct 11, 1:26 AM CDT	Special Weather Statement	TSA	Creek, Tulsa	49 min
Oct 11, 1:34 AM CDT	Areal Flood Advisory	TSA	Creek, Osage, Pawnee	116 min
Oct 11, 1:37 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee	33 min
Oct 11, 2:02 AM CDT	Special Weather Statement	TSA	Rogers, Tulsa, Wagoner, Washington	43 min
Oct 11, 2:09 AM CDT	Special Weather Statement	TSA	Washington	51 min
Oct 11, 2:34 AM CDT	Special Weather Statement	TSA	Craig, Delaware, Mayes, Nowata, Ottawa	56 min
Oct 11, 3:27 AM CDT	Special Weather Statement	TSA	Ottawa	48 min

Nearby

Tornado Warnings in Oklahoma, 2021 Every tornado warning in 2021 Tornadoes 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.