Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 222, NWS Tulsa, OK

April 26, 2011Craig County, Delaware County, Mayes County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 26, 2011, 6:03 PM CDT for Craig County, Delaware County, Mayes County, Oklahoma. It was in force for 42 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 26, 2011, 6:03 PM CDT (23:03 UTC)
Expired: Apr 26, 2011, 6:45 PM CDT
In force: 42 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Craig County, OK, Delaware County, OK, Mayes County, OK

The radar

The Tulsa radar (KINX), 65 km from the middle of the area, began a volume at 23:06 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.1 hours before the alert went out and 115 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: 8 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 466 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

691 
WUUS54 KTSA 262303
SVRTSA
OKC035-041-097-262345-
/O.NEW.KTSA.SV.W.0222.110426T2303Z-110426T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
603 PM CDT TUE APR 26 2011

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CRAIG COUNTY IN NORTHEAST OKLAHOMA
  NORTHERN DELAWARE COUNTY IN NORTHEAST OKLAHOMA
  NORTHEASTERN MAYES COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 645 PM CDT

* AT 558 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SALINA...
  MOVING NORTHEAST AT 40 MPH.

  STORM HAZARDS INCLUDE...
  HALF DOLLAR SIZE HAIL...

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  SPAVINAW...PENSACOLA...CHLOETA...LANGLEY...DISNEY...KETCHUM...
  CLEORA...BERNICE AND GROVE.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 283 AND 293.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM THAT IS LIKELY PRODUCING DAMAGING HAIL. IF
NO UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN
AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3670 9500 3668 9500 3668 9495 3659 9466
      3621 9517 3626 9527 3673 9512
TIME...MOT...LOC 2303Z 212DEG 34KT 3631 9515

$$

1 follow-up statement

096 
WWUS54 KTSA 262324 RRA
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
624 PM CDT TUE APR 26 2011

OKC035-041-097-262345-
/O.CON.KTSA.SV.W.0222.000000T0000Z-110426T2345Z/
DELAWARE OK-CRAIG OK-MAYES OK-
624 PM CDT TUE APR 26 2011

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHEASTERN MAYES...SOUTHEASTERN CRAIG AND NORTHERN DELAWARE
COUNTIES...

AT 623 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LANGLEY...
MOVING NORTHEAST AT 35 MPH.

STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...DISNEY...
KETCHUM...CLEORA...BERNICE AND GROVE.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 284 AND 293.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3670 9500 3668 9500 3668 9495 3659 9466
      3641 9506 3645 9516 3673 9512
TIME...MOT...LOC 2324Z 206DEG 32KT 3647 9506

$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 26, 4:13 PM CDT, 1 hour 50 minutes earlier.

Area forecast discussion, Apr 26, 4:13 PM CDT, 1 hour 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
413 PM CDT TUE APR 26 2011

.DISCUSSION...
SCATTERED SHOWERS AND THUNDERSTORMS HAVE BEGUN TO DEVELOP ACROSS
SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS WELL NORTH OF A WARM
FRONT THAT EXTENDS FROM TEXARKANA TO JUST SOUTH OF DALLAS. THESE
STORMS WILL CONTINUE TO INCREASE IN COVERAGE AND INTENSITY OVER
THE NEXT FEW HOURS AS THEY SPREAD NORTH AND EAST AND WILL POSE
MAINLY AN ELEVATED HAIL THREAT.

THE WARM FRONT IS LIKELY TO MOVE A BIT FURTHER NORTH THIS EVENING
AND THE THREAT FOR SIGNIFICANT SEVERE WEATHER INCLUDING TORNADOES
IN FAR SOUTHEAST OKLAHOMA WILL HINGE ON JUST HOW FAR NORTH THE
FRONT CAN GET. THE CONSENSUS OF THE MODELS IS TO KEEP THE FRONT
SOUTH OF OUR FORECAST AREA BUT AT LEAST SOUTHERN PARTS OF CHOCTAW
COUNTY MAY BE CLOSE ENOUGH TO THE FRONTAL BOUNDARY TO RUN THE RISK
OF A TORNADIC SUPERCELL.

SURFACE LOW WILL TRACK FROM NEAR THE RED RIVER INTO CENTRAL
ARKANSAS WEDNESDAY MORNING. SHOWERS AND THUNDERSTORMS WILL
BECOME MORE FOCUSED IN NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS
LATE TONIGHT AND WEDNESDAY MORNING WITH A CONTINUED THREAT OF AT
LEAST MARGINALLY SEVERE HAIL THROUGH LATE TONIGHT. WILL KEEP THE
FLASH FLOOD WATCH AS IS FOR NOW AS SOME PLACES MAY RECEIVE AN INCH
OF RAIN ON TOP OF ALREADY SATURATED AND IN SOME CASES FLOODED
GROUND.

SHOWERS AND THUNDERSTORMS WILL BE ENDING WEDNESDAY AFTERNOON
FOLLOWED BY CLEARING SKIES AND COOL TEMPERATURES WEDNESDAY NIGHT.
DRY WEATHER WITH A WARMING TREND WILL BE THE RULE THURSDAY THROUGH
FRIDAY BEFORE RAIN CHANCES RETURN SATURDAY AS A FRONTAL BOUNDARY
APPROACHES THE AREA.

SEVERE WEATHER WILL AGAIN BE POSSIBLE SATURDAY AFTERNOON AND
EVENING AS THE FRONT MOVES INTO THE AREA. THE MODELS ARE TRENDING
TOWARDS A STRONGER UPPER SYSTEM HOLDING BACK IN THE SOUTHWEST U.S.
THIS WILL RESULT IN A SLOWING OF THE FRONTAL BOUNDARY AND A
POTENTIAL SIGNIFICANT RAIN EVENT FOR PARTS OF THE AREA SATURDAY
NIGHT AND SUNDAY.

DRY WEATHER WILL RETURN EARLY NEXT WEEK WITH TEMPERATURES RUNNING
SEVERAL DEGREES BELOW NORMAL FOR EARLY MAY.

STAYED CLOSE TO GUIDANCE TEMPERATURES THE NEXT COUPLE DAYS.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   52  59  43  75 /  60  50   0   0
FSM   57  59  42  74 /  70  50   0   0
MLC   55  62  40  75 /  60  40   0   0
BVO   49  59  39  75 /  60  50   0   0
FYV   51  57  38  69 /  70  60   0   0
BYV   52  57  40  69 /  70  60   0   0
MKO   52  59  40  74 /  70  50   0   0
MIO   51  59  41  71 /  60  50   0   0
F10   52  59  41  75 /  60  50   0   0
HHW   61  65  42  76 /  60  40   0   0

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH UNTIL 7 AM WEDNESDAY FOR OKZ066-OKZ067-OKZ068-
     OKZ069-OKZ070-OKZ071-OKZ072-OKZ073-OKZ074-OKZ075-OKZ076.

AR...FLASH FLOOD WATCH UNTIL 7 AM WEDNESDAY FOR ARZ001-ARZ002-ARZ010-
     ARZ011-ARZ019-ARZ020-ARZ029.

&&

SHORT TERM...14
LONG TERM....05

PLATE

Hazardous weather outlook, Apr 26, 5:09 PM CDT, 54 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
509 PM CDT TUE APR 26 2011

ARZ001-002-010-011-019-020-029-OKZ049-053>076-271000-
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK-
CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK-
LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK-
OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK-
PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK-
WASHINGTON OK-WASHINGTON AR-
509 PM CDT TUE APR 26 2011

...HIGH IMPACT SEVERE WEATHER EXPECTED...
...HISTORIC FLOODING ONGOING...

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...THROUGH TONIGHT.
TORNADO.
	RISK...SIGNIFICANT.
	AREA...SOUTH OF A LINE FROM MCALESTER TO FORT SMITH.
	ONSET...AFTER 6 PM.

	AREA AT GREATEST RISK...CHOCTAW AND PUSHMATAHA COUNTIES.

SEVERE THUNDERSTORM.
	RISK...SIGNIFICANT.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

	AREA AT GREATEST RISK...SOUTHEAST OF A FAYETTVILLE TO MCALESTER
                                LINE.

FLASH FLOOD.
	RISK...ELEVATED.
	AREA...MOST OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...THIS EVENING.

RIVER FLOOD.
	RISK...CRITICAL.
	AREA...RIVERS CURRENTLY IN MAJOR FLOOD AND AT OR NEAR
               HISTORIC LEVELS.
	ONSET...ONGOING.

DISCUSSION...
A DANGEROUS AND LIFE THREATENING SEVERE WEATHER EVENT REMAINS
HIGHLY PROBABLE THIS EVENING AND OVERNIGHT...WITH THE GREATEST
IMPACTS EXPECTED TO BE FELT ACROSS PARTS OF SOUTHEAST OKLAHOMA AND
WEST CENTRAL ARKANSAS. ELEVATED SEVERE STORMS HAVE ALREADY
DEVELOPED ACROSS PARTS OF SOUTHEAST OKLAHOMA THIS AFTERNOON.
SUPERCELL STORMS ARE EXPECTED TO DEVELOP NEAR THE RED RIVER ACROSS
SOUTHEAST OKLAHOMA...CLOSE TO THE WARM FRONT AND SPREAD NORTHEAST
THIS EVENING. THE ENVIRONMENT WILL BE FAVORABLE FOR LONG TRACK AND
DAMAGING TORNADOES WITH THESE STORMS. THE WARM FRONT WAS LOCATED
OVER FAR NORTHEAST TEXAS LATE THIS AFTERNOON WILL DRAW CLOSER TO THE
RED RIVER THIS EVENING. AT THE SAME TIME...A STRONG MID LEVEL JET
STREAK PASSING OVER THE AREA WILL ONLY CONTRIBUTE TO THE HIGH RISK
OF SEVERE WEATHER.

THE HIGH SEVERE WEATHER POTENTIAL WILL CONTINUE OVERNIGHT AS ANOTHER
MID LEVEL JET STREAK MOVES INTO THE SOUTHERN PLAINS. AS THIS
OCCURS THE WARM FRONT WILL LIFT FURTHER NORTHWARD INTO SOUTHEAST
OKLAHOMA...AND POSSIBLY INTO WEST CENTRAL ARKANSAS...HOWEVER THE
TERRAIN OF SOUTHEAST OKLAHOMA MAY COMPLICATE THE FRONTAL LOCATION.
ADDITIONAL SEVERE STORMS WILL DEVELOP LATE THIS EVENING AND INTO THE
OVERNIGHT HOURS WITH HIGH TORNADIC POTENTIAL IN VICINITY OF THE WARM
FRONT. THE TORNADIC RISK WILL DIMINISH ACROSS AREAS FURTHER REMOVED
NORTH OF THE WARM FRONT...HOWEVER SEVERE ELEVATED THUNDERSTORMS WILL
REMAIN LIKELY WITH VERY LARGE HAIL BEING THE PRIMARY RISK.

FLASH FLOODING AND RIVER FLOODING WILL AGAIN BE WORSENED BY
EVENING AND OVERNIGHT THUNDERSTORMS. A FLASH FLOOD WATCH REMAINS
IN EFFECT...WITH ANY ADDITIONAL RAINS QUICKLY PRODUCING DANGEROUS
IMPACTS ACROSS EAST CENTRAL OKLAHOMA INTO FAR NORTHWEST ARKANSAS.
ALSO...HISTORIC FLOODING IS ONGOING ALONG SOME LARGER RIVERS...AND
THESE HIGH WATER LEVELS WILL BE EVEN SLOWER TO DECREASE WITH THE
ADDITIONAL RAINFALL EXPECTED OVERNIGHT

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
ACTIVATION OF THE REGIONAL SPOTTER NETWORK WILL BE REQUIRED.
ALL COMMUNICATION CHANNELS SHOULD BE UTILIZED INCLUDING
RADIO AND INTERNET SERVICES.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
ACTIVATION OF THE REGIONAL SPOTTER NETWORK EXPECTED.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
WEDNESDAY...SEVERE THUNDERSTORM POTENTIAL...HIGH WIND POTENTIAL.
THURSDAY...NO HAZARDS.
FRIDAY...HIGH WIND POTENTIAL.
SATURDAY...THUNDERSTORM POTENTIAL...HIGH WIND POTENTIAL.
SUNDAY...THUNDERSTORM POTENTIAL.
MONDAY...NO HAZARDS.

EXTENDED DISCUSSION...
SEVERE THUNDERSTORMS MAY BE ONGOING EARLY WEDNESDAY...WITH POTENTIAL
FOR THUNDERSTORMS TO REDEVELOP LATER IN THE DAY WEDNESDAY BENEATH
THE PASSING UPPER STORM CENTER. STRONG SOUTHERLY WINDS WILL RETURN
FRIDAY WITH THUNDERSTORM CHANCES RETURNING ON SATURDAY...WHEN THE
NEXT COLD FRONT WILL PASS THROUGH THE AREA.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.

In the hours before

Local storm report, Apr 26, 5:35 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
535 PM CDT TUE APR 26 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0515 PM     HAIL             1 SSW BARON             35.91N 94.62W
04/26/2011  E0.88 INCH       ADAIR              OK   PUBLIC

0525 PM     HAIL             YANUSH                  34.71N 95.31W
04/26/2011  E0.75 INCH       LATIMER            OK   PUBLIC

0525 PM     HAIL             3 W COWLINGTON          35.28N 94.78W
04/26/2011  E0.75 INCH       LE FLORE           OK   PUBLIC

0528 PM     HAIL             TULSA                   36.13N 95.92W
04/26/2011  E0.88 INCH       TULSA              OK   PUBLIC

0532 PM     HAIL             2 W TALIHINA            34.75N 95.08W
04/26/2011  E1.75 INCH       LATIMER            OK   PUBLIC

&&

SAA

Local storm report, Apr 26, 5:39 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
539 PM CDT TUE APR 26 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0532 PM     HAIL             4 W TULSA               36.13N 95.99W
04/26/2011  E0.88 INCH       TULSA              OK   PUBLIC

            CARBONDALE...1 ESE

0536 PM     HAIL             TULSA                   36.13N 95.92W
04/26/2011  E0.88 INCH       TULSA              OK   BROADCAST MEDIA

            DOWNTOWN AT KOTV

0537 PM     TSTM WND GST     2 E SPIRO               35.24N 94.58W
04/26/2011  E70.00 MPH       LE FLORE           OK   PUBLIC

&&

SAA

Local storm report, Apr 26, 5:46 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
546 PM CDT TUE APR 26 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0530 PM     TSTM WND DMG     SPIRO                   35.24N 94.62W
04/26/2011                   LE FLORE           OK   PUBLIC

            TREES BLOWN DOWN IN SPIRO.

&&

SAA

Local storm report, Apr 26, 5:55 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
555 PM CDT TUE APR 26 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0532 PM     HAIL             MULDROW                 35.41N 94.60W
04/26/2011  E1.00 INCH       SEQUOYAH           OK   LAW ENFORCEMENT

0541 PM     HAIL             4 E GENTRY              36.27N 94.41W
04/26/2011  E1.75 INCH       BENTON             AR   PUBLIC

0552 PM     HAIL             5 NNW TULSA             36.20N 95.96W
04/26/2011  E1.00 INCH       TULSA              OK   PUBLIC

0553 PM     HAIL             OWASSO                  36.27N 95.85W
04/26/2011  E1.00 INCH       TULSA              OK   PUBLIC

&&

SAA

Local storm report, Apr 26, 6:00 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
600 PM CDT TUE APR 26 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0558 PM     HAIL             VAN BUREN               35.44N 94.35W
04/26/2011  E1.75 INCH       CRAWFORD           AR   AMATEUR RADIO

&&

PBS

Local storm report, Apr 26, 6:02 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
602 PM CDT TUE APR 26 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0558 PM     HAIL             VAN BUREN               35.44N 94.35W
04/26/2011  E1.75 INCH       CRAWFORD           AR   AMATEUR RADIO

0559 PM     HAIL             ALMA                    35.48N 94.22W
04/26/2011  E0.75 INCH       CRAWFORD           AR   TRAINED SPOTTER

0600 PM     HAIL             VAN BUREN               35.44N 94.35W
04/26/2011  E4.25 INCH       CRAWFORD           AR   EMERGENCY MNGR

0602 PM     HAIL             VAN BUREN               35.44N 94.35W
04/26/2011  E2.75 INCH       CRAWFORD           AR   EMERGENCY MNGR

&&

SAA

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 8:06 PM CDT	River Flood Warning	TSA	Cherokee	12 hr
Apr 25, 8:15 PM CDT	Areal Flood Warning	TSA	Haskell, Latimer, McIntosh, Muskogee, Pittsburg, Sequoyah	10 hr
Apr 26, 5:44 AM CDT	Areal Flood Warning	TSA	Haskell, Latimer, McIntosh, Muskogee, Pittsburg, Sequoyah	6 hr
Apr 26, 11:58 AM CDT	Areal Flood Warning	TSA	Adair, Cherokee, Craig, Delaware, Haskell, Latimer and 10 more	12 hr
Apr 26, 3:55 PM CDT	Special Weather Statement	TSA	LeFlore	35 min
Apr 26, 4:19 PM CDT	Special Weather Statement	TSA	Pittsburg	41 min
Apr 26, 4:25 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	50 min
Apr 26, 4:32 PM CDT	Special Weather Statement	TSA	Atoka	43 min
Apr 26, 4:38 PM CDT	Special Weather Statement	TSA	Haskell	52 min
Apr 26, 4:45 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg	45 min
Apr 26, 4:50 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Sequoyah	40 min
Apr 26, 4:58 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg, Pushmataha	47 min
Apr 26, 5:09 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	66 min
Apr 26, 5:11 PM CDT	Flash Flood Warning	TSA	Adair	4 hr
Apr 26, 5:20 PM CDT	Flash Flood Warning	TSA	Haskell, Latimer, LeFlore, Muskogee, Sequoyah	4 hr
Apr 26, 5:21 PM CDT	Special Weather Statement	TSA	Haskell	39 min
Apr 26, 5:24 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Pushmataha	66 min
Apr 26, 5:26 PM CDT	Special Weather Statement	TSA	Tulsa	34 min
Apr 26, 5:28 PM CDT	Severe Thunderstorm Warning	TSA	Adair, LeFlore, Sequoyah	47 min
Apr 26, 5:28 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa, Washington	47 min
Apr 26, 5:29 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw	30 min
Apr 26, 5:30 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Tulsa	35 min
Apr 26, 5:38 PM CDT	Tornado Warning	TSA	LeFlore, Sequoyah	37 min
Apr 26, 5:43 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Sequoyah	32 min
Apr 26, 6:00 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Sequoyah	30 min
Apr 26, 6:06 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	54 min
Apr 26, 6:08 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Rogers	39 min
Apr 26, 6:14 PM CDT	Special Weather Statement	TSA	Washington	31 min
Apr 26, 6:19 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Muskogee	41 min
Apr 26, 6:22 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	38 min
Apr 26, 6:32 PM CDT	Flash Flood Warning	TSA	Cherokee	4 hr
Apr 26, 6:32 PM CDT	Tornado Warning	TSA	LeFlore	18 min
Apr 26, 6:36 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	25 min
Apr 26, 6:52 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata	16 min
Apr 26, 6:56 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware	37 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2011 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.