Alert archive / Oklahoma / Tornado Warnings in 2021

Tornado Warning 30, NWS Tulsa, OK

October 10, 2021McIntosh County, Pittsburg County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Oct 10, 2021, 10:21 PM CDT for McIntosh County, Pittsburg County, Oklahoma. It was in force for 39 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 10, 2021, 10:21 PM CDT (03:21 UTC)
Expired: Oct 10, 2021, 11:00 PM CDT
In force: 39 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties McIntosh County, OK, Pittsburg County, OK

The radar

The Tulsa radar (KINX), 121 km from the middle of the area, began a volume at 03:24 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
Oct 10, 9:24 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 3.4 hours before the alert went out and 132 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.

421 
WFUS54 KTSA 110321
TORTSA
OKC091-121-110400-
/O.NEW.KTSA.TO.W.0030.211011T0321Z-211011T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
1021 PM CDT Sun Oct 10 2021

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Southwestern McIntosh County in southeastern Oklahoma...
  Northern Pittsburg County in southeastern Oklahoma...

* Until 1100 PM CDT.
    
* At 1021 PM CDT, a severe thunderstorm capable of producing a
  tornado was located 4 miles west of Scipio, moving northeast at 55
  mph.

  HAZARD...Tornado and quarter size hail.

  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...                        Crowder...
  Canadian...                       Indianola...
  Hanna...                          Arrowhead State Park...
  Raiford...                        Lake Eufaula State Park...
  Scipio...                         Vivian...
  Vernon...                         Onapa...

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 3506 9607 3509 9606 3512 9603 3512 9601
      3515 9601 3515 9598 3523 9598 3546 9550
      3513 9551 3494 9609 3505 9609
TIME...MOT...LOC 0321Z 243DEG 49KT 3507 9604 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

69

1 follow-up statement

396 
WWUS54 KTSA 110346
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1046 PM CDT Sun Oct 10 2021

OKC091-121-110400-
/O.CON.KTSA.TO.W.0030.000000T0000Z-211011T0400Z/
McIntosh OK-Pittsburg OK-
1046 PM CDT Sun Oct 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR CENTRAL
MCINTOSH AND NORTHEASTERN PITTSBURG COUNTIES...
    
At 1045 PM CDT, a severe thunderstorm capable of producing a tornado
was located 3 miles west of Canadian, moving northeast at 50 mph.

HAZARD...Tornado and quarter size hail.

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...                        Crowder...
Canadian...                       Indianola...
Arrowhead State Park...           Raiford...
Lake Eufaula State Park...        Vivian...
Onapa...                          

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 3546 9550 3513 9551 3504 9578 3527 9590
TIME...MOT...LOC 0345Z 237DEG 42KT 3518 9572 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

69

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, 10:29 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, 10:58 PM CDT	Tornado Warning	TSA	Haskell, McIntosh, Muskogee, Pittsburg	47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.