Alert archive / Oklahoma / Tornado Warnings in 2011

Tornado Warning 65, NWS Tulsa, OK

May 22, 20114 counties in Oklahoma

NWS Tulsa, OK issued this tornado warning at May 22, 2011, 6:42 PM CDT for 4 counties in Oklahoma. It was in force for 33 min. 3 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
May 22, 2011, 6:42 PM CDT (23:42 UTC)
Expired
May 22, 2011, 7:15 PM CDT
In force
33 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon

Counties Cherokee County, OK, Delaware County, OK, Mayes County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 41 km from the middle of the area, began a volume at 23:45 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

TimeReportWhereRemark
May 22, 6:44 PM CDTFUNNEL CLOUD6 S Murphy, OK
May 22, 6:50 PM CDTTSTM WND DMG8 S Chouteau, OKLARGE TREE LIMBS GREATER THAN 2 INCHES DOWN.
May 22, 7:10 PM CDTHAIL 4.252 N Peggs, OK

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.

IssuedProductOfficeLasted
May 22, 1:27 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.7 hours before the alert went out and 144 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2011-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2645 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2011-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 424 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2645 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
678 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
424 m²/s²
0-3 km storm-relative helicity
422 m²/s²
Significant tornado parameter
0.0
Supercell composite
16.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

018 
WFUS54 KTSA 222342
TORTSA
OKC021-041-097-145-230015-
/O.NEW.KTSA.TO.W.0065.110522T2342Z-110523T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
642 PM CDT SUN MAY 22 2011

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA
  SOUTHWESTERN DELAWARE COUNTY IN NORTHEAST OKLAHOMA
  SOUTHERN MAYES COUNTY IN NORTHEAST OKLAHOMA
  EASTERN WAGONER COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 715 PM CDT

* AT 640 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 8 MILES SOUTH OF CHOUTEAU...MOVING EAST AT 20
  MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  CHOUTEAU...ROSE...LOCUST GROVE...PEGGS...HULBERT...TAHLEQUAH AND
  LEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!

&&

LAT...LON 3634 9492 3587 9490 3599 9541 3622 9541
TIME...MOT...LOC 2342Z 268DEG 16KT 3607 9535

$$
2 follow-up statements
546 
WWUS54 KTSA 222352
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
652 PM CDT SUN MAY 22 2011

OKC021-041-097-145-230015-
/O.CON.KTSA.TO.W.0065.000000T0000Z-110523T0015Z/
CHEROKEE OK-DELAWARE OK-MAYES OK-WAGONER OK-
652 PM CDT SUN MAY 22 2011

...TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR EASTERN
WAGONER...SOUTHERN MAYES...SOUTHWESTERN DELAWARE AND NORTHERN
CHEROKEE COUNTIES...

AT 649 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED 6 MILES SOUTHWEST
OF MURPHY...MOVING EAST AT 20 MPH. THIS IS A DANGEROUS STORM WITH
STRONG LOW LEVEL ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT
ANY TIME.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...MURPHY...
ROSE...LOCUST GROVE...PEGGS...LOST CITY...HULBERT...TAHLEQUAH AND
LEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!

&&

LAT...LON 3623 9535 3634 9492 3587 9490 3598 9537
TIME...MOT...LOC 2352Z 268DEG 16KT 3607 9529

$$
642 
WWUS54 KTSA 230004
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
704 PM CDT SUN MAY 22 2011

OKC021-041-097-145-230015-
/O.CON.KTSA.TO.W.0065.000000T0000Z-110523T0015Z/
CHEROKEE OK-DELAWARE OK-MAYES OK-WAGONER OK-
704 PM CDT SUN MAY 22 2011

...TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
NORTHEASTERN WAGONER...SOUTHEASTERN MAYES...SOUTHWESTERN DELAWARE AND
NORTHERN CHEROKEE COUNTIES...

AT 702 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR MURPHY...
MOVING EAST AT 20 MPH. THIS IS A DANGEROUS STORM WITH STRONG LOW
LEVEL ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT ANY TIME.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...ROSE...
PEGGS...LOST CITY...TAHLEQUAH AND LEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!

&&

LAT...LON 3616 9526 3629 9492 3587 9490 3602 9527
TIME...MOT...LOC 0004Z 266DEG 15KT 3607 9522

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 7:46 PM CDTSpecial Weather StatementTSACreek29 min
May 21, 7:54 PM CDTSevere Thunderstorm WarningTSACreek22 min
May 21, 7:58 PM CDTSpecial Weather StatementTSAOkfuskee32 min
May 21, 8:28 PM CDTSpecial Weather StatementTSACreek32 min
May 21, 8:36 PM CDTSevere Thunderstorm WarningTSACreek, Okmulgee, Tulsa39 min
May 21, 9:02 PM CDTSpecial Weather StatementTSATulsa28 min
May 22, 5:17 PM CDTSpecial Weather StatementTSAOttawa28 min
May 22, 5:46 PM CDTSevere Thunderstorm WarningTSAOttawa59 min
May 22, 5:51 PM CDTSpecial Weather StatementTSAWagoner24 min
May 22, 5:54 PM CDTSpecial Weather StatementTSACraig36 min
May 22, 5:59 PM CDTSevere Thunderstorm WarningTSACraig, Delaware, Mayes, Ottawa61 min
May 22, 6:03 PM CDTSevere Thunderstorm WarningTSACherokee, Mayes, Wagoner57 min
May 22, 6:24 PM CDTTornado WarningTSACraig, Delaware, Ottawa36 min
May 22, 6:47 PM CDTSpecial Weather StatementTSAOkfuskee28 min
May 22, 6:52 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Okmulgee38 min
May 22, 6:55 PM CDTTornado WarningTSADelaware65 min

Nearby

Tornado Warnings in Oklahoma, 2011Every tornado warning in 2011Tornadoes in 2011

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.