Alert archive / Oklahoma / Tornado Warnings in 2021
Tornado Warning 9, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Apr 9, 2021, 7:41 PM CDT for Creek County, Tulsa County, Oklahoma. It was in force for 20 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
- Apr 9, 2021, 7:41 PM CDT (00:41 UTC)
- Expired
- Apr 9, 2021, 8:01 PM CDT
- In force
- 20 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Creek County, OK, Tulsa County, OK
The radar
The Tulsa radar (KINX), 45 km from the middle of the area, began a volume at 00:41 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 |
|---|---|---|---|
| Apr 9, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 0.7 hours before the alert went out and 152 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
- 1392 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1212 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.2
The text
As transmitted.
233
WFUS54 KTSA 100041
TORTSA
OKC037-143-100130-
/O.NEW.KTSA.TO.W.0009.210410T0041Z-210410T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
741 PM CDT Fri Apr 9 2021
The National Weather Service in Tulsa has issued a
* Tornado Warning for...
East central Creek County in northeastern Oklahoma...
Southeastern Tulsa County in northeastern Oklahoma...
* Until 830 PM CDT.
* At 741 PM CDT, a severe thunderstorm capable of producing a tornado
was located 3 miles west of Mounds, moving northeast at 40 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...
Tulsa... Broken Arrow...
Bixby... Jenks...
Glenpool... Kiefer...
Mounds...
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 3606 9585 3597 9576 3586 9610 3586 9615
3591 9620
TIME...MOT...LOC 0041Z 242DEG 33KT 3589 9611
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$2 follow-up statements
384
WWUS54 KTSA 100050
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
750 PM CDT Fri Apr 9 2021
OKC037-100100-
/O.CAN.KTSA.TO.W.0009.000000T0000Z-210410T0130Z/
Creek OK-
750 PM CDT Fri Apr 9 2021
...THE TORNADO WARNING FOR EAST CENTRAL CREEK COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area therefore the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern Oklahoma.
LAT...LON 3598 9603 3606 9585 3597 9576 3588 9603
TIME...MOT...LOC 0050Z 242DEG 33KT 3593 9602
$$
OKC143-100130-
/O.CON.KTSA.TO.W.0009.000000T0000Z-210410T0130Z/
Tulsa OK-
750 PM CDT Fri Apr 9 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
SOUTHEASTERN TULSA COUNTY...
At 750 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Glenpool, moving northeast at 40 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...
Tulsa... Broken Arrow...
Bixby... Jenks...
Glenpool...
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 3598 9603 3606 9585 3597 9576 3588 9603
TIME...MOT...LOC 0050Z 242DEG 33KT 3593 9602
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$784
WWUS54 KTSA 100101
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
801 PM CDT Fri Apr 9 2021
OKC143-100111-
/O.CAN.KTSA.TO.W.0009.000000T0000Z-210410T0130Z/
Tulsa OK-
801 PM CDT Fri Apr 9 2021
...THE TORNADO WARNING FOR SOUTHEASTERN TULSA COUNTY IS CANCELLED...
The storm which prompted the warning has weakened and no longer
appears capable of producing a tornado. Therefore the warning has
been cancelled. However gusty winds to 50 mph are still possible
with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern Oklahoma.
LAT...LON 3598 9603 3606 9585 3597 9576 3588 9603
TIME...MOT...LOC 0059Z 242DEG 33KT 3598 9591
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 7:02 PM CDT | Special Weather Statement | TSA | Rogers | 28 min |
| Apr 9, 7:09 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 51 min |
| Apr 9, 7:12 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 48 min |
| Apr 9, 7:24 PM CDT | Special Weather Statement | TSA | Tulsa | 36 min |
| Apr 9, 7:29 PM CDT | Special Weather Statement | TSA | Ottawa | 31 min |
| Apr 9, 7:38 PM CDT | Special Weather Statement | TSA | Craig, Nowata | 37 min |
| Apr 9, 7:38 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Muskogee, Okmulgee, Rogers, Tulsa, Wagoner | 52 min |
| Apr 9, 7:52 PM CDT | Special Weather Statement | TSA | Cherokee, Mayes | 23 min |
| Apr 9, 7:56 PM CDT | Special Weather Statement | TSA | Okfuskee | 34 min |
| Apr 9, 8:02 PM CDT | Severe Thunderstorm Warning | TSA | Delaware | 29 min |
| Apr 9, 8:28 PM CDT | Special Weather Statement | TSA | Cherokee, Mayes | 32 min |
| Apr 9, 8:29 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 46 min |
| Apr 9, 8:49 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee | 41 min |
| Apr 9, 8:59 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pittsburg, Pushmataha | 50 min |
| Apr 9, 9:03 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, McIntosh, Muskogee, Sequoyah | 42 min |
| Apr 9, 9:24 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw, Pushmataha | 66 min |
| Apr 9, 9:27 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Sequoyah | 48 min |
| Apr 9, 9:30 PM CDT | Special Weather Statement | TSA | Muskogee | 30 min |
| Apr 9, 9:35 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, LeFlore, Pushmataha | 55 min |
| Apr 9, 9:37 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, LeFlore, Muskogee, Sequoyah | 38 min |
| Apr 9, 9:58 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw, LeFlore, Pushmataha | 47 min |
| Apr 9, 10:24 PM CDT | Special Weather Statement | TSA | LeFlore | 36 min |
| Apr 9, 10:33 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore, Sequoyah | 42 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.