Alert archive / Oklahoma / Tornado Warnings in 2021

Tornado Warning 8, NWS Tulsa, OK

March 17, 2021Rogers County, Wagoner County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Mar 17, 2021, 2:17 PM CDT for Rogers County, Wagoner County, Oklahoma. It was in force for 28 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: Mar 17, 2021, 2:17 PM CDT (19:17 UTC)
Expired: Mar 17, 2021, 2:45 PM CDT
In force: 28 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Rogers County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 7 km from the middle of the area, began a volume at 19:17 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
Mar 17, 2:00 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.3 hours before the alert went out and 182 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: 102 J/kg
Mixed-layer CIN: -235 J/kg
Mixed-layer LCL: 956 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 220 m²/s²
0-3 km storm-relative helicity: 236 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted.

285 
WFUS54 KTSA 171917
TORTSA
OKC131-145-171945-
/O.NEW.KTSA.TO.W.0008.210317T1917Z-210317T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
217 PM CDT Wed Mar 17 2021

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Southwestern Rogers County in northeastern Oklahoma...
  North central Wagoner County in northeastern Oklahoma...

* Until 245 PM CDT.
    
* At 216 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 6 miles southeast of Catoosa, moving north at 35 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...
  Claremore...                      Catoosa...
  Verdigris...                      Taiwah...
  Tiawah...                         

This includes Interstate 44 between mile markers 237 and 250.
 
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 3608 9564 3614 9576 3635 9570 3627 9544
TIME...MOT...LOC 1916Z 200DEG 29KT 3613 9566 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

2 follow-up statements

281 
WWUS54 KTSA 171930
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
230 PM CDT Wed Mar 17 2021

OKC145-171939-
/O.CAN.KTSA.TO.W.0008.000000T0000Z-210317T1945Z/
Wagoner OK-
230 PM CDT Wed Mar 17 2021

...THE TORNADO WARNING FOR NORTH CENTRAL WAGONER 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 800 PM CDT for northeastern
Oklahoma.

LAT...LON 3629 9549 3628 9547 3615 9561 3615 9562
      3616 9562 3616 9565 3619 9574 3635 9570
TIME...MOT...LOC 1929Z 199DEG 14KT 3619 9563 

$$

OKC131-171945-
/O.CON.KTSA.TO.W.0008.000000T0000Z-210317T1945Z/
Rogers OK-
230 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM CDT FOR
SOUTHWESTERN ROGERS COUNTY...
    
At 229 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles southeast of Verdigris, moving north at 15 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...
Claremore...                      Catoosa...
Verdigris...                      Taiwah...
Tiawah...                         

This includes Interstate 44 between mile markers 238 and 250.
 
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 3629 9549 3628 9547 3615 9561 3615 9562
      3616 9562 3616 9565 3619 9574 3635 9570
TIME...MOT...LOC 1929Z 199DEG 14KT 3619 9563 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

817 
WWUS54 KTSA 171945
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
245 PM CDT Wed Mar 17 2021

OKC131-171955-
/O.EXP.KTSA.TO.W.0008.000000T0000Z-210317T1945Z/
Rogers OK-
245 PM CDT Wed Mar 17 2021

...THE TORNADO WARNING FOR SOUTHWESTERN ROGERS COUNTY HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been allowed to expire.  However small hail
is still possible with this thunderstorm.

A Tornado Watch remains in effect until 800 PM CDT for northeastern
Oklahoma.

LAT...LON 3629 9549 3628 9547 3615 9561 3615 9562
      3616 9562 3616 9565 3619 9574 3635 9570
TIME...MOT...LOC 1945Z 200DEG 29KT 3631 9558 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 17, 1:25 AM CDT	Special Weather Statement	TSA	LeFlore	35 min
Mar 17, 1:33 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	42 min
Mar 17, 2:04 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	41 min
Mar 17, 2:44 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	46 min
Mar 17, 3:28 AM CDT	Severe Thunderstorm Warning	TSA	Osage	47 min
Mar 17, 3:46 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	44 min
Mar 17, 4:19 AM CDT	Special Weather Statement	TSA	Nowata, Washington	26 min
Mar 17, 4:22 AM CDT	Areal Flood Advisory	TSA	Osage, Pawnee	3 hr
Mar 17, 4:25 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Pawnee, Washington	50 min
Mar 17, 4:37 AM CDT	Special Weather Statement	TSA	Pawnee	53 min
Mar 17, 4:52 AM CDT	Special Weather Statement	TSA	Cherokee, Craig, Delaware, McIntosh, Mayes, Muskogee and 4 more	38 min
Mar 17, 5:13 AM CDT	Special Weather Statement	TSA	Nowata, Washington	47 min
Mar 17, 5:14 AM CDT	Special Weather Statement	TSA	Nowata, Washington	46 min
Mar 17, 5:24 AM CDT	Special Weather Statement	TSA	Pawnee	36 min
Mar 17, 5:27 AM CDT	Special Weather Statement	TSA	Adair, Cherokee, Craig, Delaware, Haskell, Latimer and 4 more	33 min
Mar 17, 5:54 AM CDT	Special Weather Statement	TSA	Craig, Creek, Nowata, Ottawa, Rogers, Tulsa	51 min
Mar 17, 5:57 AM CDT	Special Weather Statement	TSA	Adair, Cherokee, Delaware, Haskell, LeFlore, Sequoyah	48 min
Mar 17, 6:15 AM CDT	Special Weather Statement	TSA	Choctaw	45 min
Mar 17, 6:33 AM CDT	Special Weather Statement	TSA	Adair	42 min
Mar 17, 6:46 AM CDT	Special Weather Statement	TSA	Ottawa	29 min
Mar 17, 1:42 PM CDT	Special Weather Statement	TSA	Tulsa	33 min
Mar 17, 1:46 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa, Wagoner	44 min
Mar 17, 1:54 PM CDT	Special Weather Statement	TSA	Delaware	36 min
Mar 17, 1:58 PM CDT	Tornado Warning	TSA	Creek	32 min
Mar 17, 2:13 PM CDT	Wind Advisory	TSA	Craig, Creek, Nowata, Okfuskee, Okmulgee, Pawnee and 3 more	7 hr
Mar 17, 2:28 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Tulsa	47 min
Mar 17, 2:32 PM CDT	Special Weather Statement	TSA	Delaware	43 min
Mar 17, 3:11 PM CDT	Special Weather Statement	TSA	Rogers	34 min
Mar 17, 3:14 PM CDT	Special Weather Statement	TSA	Nowata	31 min
Mar 17, 3:16 PM CDT	Special Weather Statement	TSA	Delaware	29 min
Mar 17, 3:16 PM CDT	Special Weather Statement	TSA	Delaware	29 min
Mar 17, 3:23 PM CDT	Special Weather Statement	TSA	Craig	37 min
Mar 17, 3:31 PM CDT	Special Weather Statement	TSA	Washington	29 min
Mar 17, 3:51 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Washington	10 min
Mar 17, 4:14 PM CDT	Special Weather Statement	TSA	Ottawa	31 min
Mar 17, 4:58 PM CDT	Special Weather Statement	TSA	Delaware	32 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.