Alert archive / Oklahoma / Tornado Warnings in 2021
Tornado Warning 36, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Oct 10, 2021, 11:33 PM CDT for Cherokee County, Muskogee County, Sequoyah County, Oklahoma. It was in force for 42 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, 11:33 PM CDT (04:33 UTC)
- Expired
- Oct 11, 2021, 12:15 AM CDT
- In force
- 42 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Cherokee County, OK, Muskogee County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 72 km from the middle of the area, began a volume at 04:36 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
Springfield, MO (KSGF), launched 00:00Z, 4.6 hours before the alert went out and 184 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2067 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
799
WFUS54 KTSA 110433
TORTSA
OKC021-101-135-110515-
/O.NEW.KTSA.TO.W.0036.211011T0433Z-211011T0515Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
1133 PM CDT Sun Oct 10 2021
The National Weather Service in Tulsa has issued a
* Tornado Warning for...
Northwestern Sequoyah County in east central Oklahoma...
Southeastern Cherokee County in east central Oklahoma...
East central Muskogee County in east central Oklahoma...
* Until 1215 AM CDT.
* At 1133 PM CDT, a severe thunderstorm capable of producing a
tornado was located 3 miles west of Webbers Falls, 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... Vian...
Gore... Webbers Falls...
Marble City... Braggs...
Greenleaf State Park... Pumpkin Center...
Cookson... Brushy Lake State Park...
Cherokee Landing State Park... Lake Tenkiller State Park...
Keefeton... Box...
This includes Interstate 40 in Oklahoma between mile markers 278 and
296.
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 3540 9525 3559 9535 3588 9491 3580 9481
3553 9481
TIME...MOT...LOC 0433Z 237DEG 39KT 3551 9519
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$3 follow-up statements
507
WWUS54 KTSA 110442
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
1142 PM CDT Sun Oct 10 2021
OKC021-101-135-110515-
/O.CON.KTSA.TO.W.0036.000000T0000Z-211011T0515Z/
Sequoyah OK-Cherokee OK-Muskogee OK-
1142 PM CDT Sun Oct 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR
NORTHWESTERN SEQUOYAH...SOUTHEASTERN CHEROKEE AND EAST CENTRAL
MUSKOGEE COUNTIES...
At 1142 PM CDT, a confirmed tornado was located near Greenleaf State
Park, moving northeast at 45 mph.
HAZARD...Damaging tornado.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations in or near the path include...
Gore... Webbers Falls...
Marble City... Braggs...
Cookson... Cherokee Landing State Park...
Greenleaf State Park... Pumpkin Center...
Lake Tenkiller State Park... Box...
This includes Interstate 40 in Oklahoma near mile marker 285.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 3548 9516 3565 9526 3588 9491 3580 9481
3558 9481
TIME...MOT...LOC 0442Z 225DEG 39KT 3558 9514
TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN
$$986
WWUS54 KTSA 110457
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
1157 PM CDT Sun Oct 10 2021
OKC101-110507-
/O.CAN.KTSA.TO.W.0036.000000T0000Z-211011T0515Z/
Muskogee OK-
1157 PM CDT Sun Oct 10 2021
...THE TORNADO WARNING FOR EAST CENTRAL MUSKOGEE 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 east central
Oklahoma.
LAT...LON 3557 9504 3574 9513 3588 9491 3580 9481
3558 9481
TIME...MOT...LOC 0457Z 237DEG 39KT 3567 9497
$$
OKC021-135-110515-
/O.CON.KTSA.TO.W.0036.000000T0000Z-211011T0515Z/
Sequoyah OK-Cherokee OK-
1157 PM CDT Sun Oct 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR
NORTHWESTERN SEQUOYAH AND SOUTHEASTERN CHEROKEE COUNTIES...
At 1157 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles southwest of Cookson, moving northeast at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations in or near the path include...
Marble City... Cookson...
Lake Tenkiller State Park... Cherokee Landing State Park...
Box...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3557 9504 3574 9513 3588 9491 3580 9481
3558 9481
TIME...MOT...LOC 0457Z 237DEG 39KT 3567 9497
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$317
WWUS54 KTSA 110504
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
1204 AM CDT Mon Oct 11 2021
OKC135-110514-
/O.CAN.KTSA.TO.W.0036.000000T0000Z-211011T0515Z/
Sequoyah OK-
1204 AM CDT Mon Oct 11 2021
...THE TORNADO WARNING FOR NORTHWESTERN SEQUOYAH 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 east central
Oklahoma.
LAT...LON 3566 9498 3580 9504 3588 9491 3580 9481
3564 9481
TIME...MOT...LOC 0504Z 226DEG 42KT 3574 9490
$$
OKC021-110515-
/O.CON.KTSA.TO.W.0036.000000T0000Z-211011T0515Z/
Cherokee OK-
1204 AM CDT Mon Oct 11 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR
SOUTHEASTERN CHEROKEE COUNTY...
At 1204 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Cherokee Landing State Park, moving northeast at 50
mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations in or near the path include...
Cookson... Cherokee Landing State Park...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3566 9498 3580 9504 3588 9491 3580 9481
3564 9481
TIME...MOT...LOC 0504Z 226DEG 42KT 3574 9490
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$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 | 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 | 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 | 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 | 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 | 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, 11:43 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, 2021Every tornado warning in 2021Tornadoes 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.