Alert archive / Oklahoma / Special Weather Statements in 2011

Special Weather Statement, NWS Tulsa, OK

April 23, 2011Mayes County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Apr 23, 2011, 6:22 AM CDT for Mayes County, Oklahoma. It was in force for 38 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 23, 2011, 6:22 AM CDT (11:22 UTC)
Expired: Apr 23, 2011, 7:00 AM CDT
In force: 38 min
Issued by: NWS Tulsa, OK

County Mayes County, OK

The radar

The Tulsa radar (KINX), 36 km from the middle of the area, began a volume at 11:22 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 nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 11.4 hours before the alert went out and 151 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: 2835 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 640 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 231 m²/s²
0-3 km storm-relative helicity: 254 m²/s²
Significant tornado parameter: 4.7
Supercell composite: 18.1

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 23, 6:18 AM CDT, 4 minutes earlier.

Area forecast discussion, Apr 23, 6:18 AM CDT, 4 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
618 AM CDT SAT APR 23 2011

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM.
MVFR TO VFR CONDITIONS WILL BE COMMON ACROSS THE AREA THROUGH
THE VALID PERIOD. HOWEVER...IFR CONDITIONS WILL BE FOUND IN
THUNDERSTORMS AS THEY OCCUR ACROSS THE AREA. SHOWERS AND
THUNDERSTORMS WILL BE MOST PREVALENT AT THE NORTHEAST OKLAHOMA
AND NORTHWEST ARKANSAS TAF SITES THIS MORNING. THUNDERSTORMS
WILL BE MORE COMMON AT KFSM AND KMLC THIS AFTERNOON AND THIS
EVENING SOUTH OF FRONTAL BOUNDARY THAT STRETCHES ACROSS
NORTHWEST ARKANSAS AND EAST-CENTRAL OKLAHOMA THIS MORNING.

&&

.PREV DISCUSSION... /ISSUED 308 AM CDT SAT APR 23 2011/

DISCUSSION...
UNSETTLED CONDITIONS REMAIN IN PLACE THIS MORNING WITH ONGOING
STRONG TO SEVERE STORMS ACROSS SE OK...WITH ADDITIONAL REPORTS OF
STRONG WINDS EXTENDING WELL NORTH OF THE CONVECTION. ADDITIONAL
STORMS ARE STRENGTHENING JUST NORTH OF OK/KS BORDER ASSOCIATED
WITH THE SYNOPTIC FRONTAL BOUNDARY. THE NORTHERN AREA OF STORMS IS
EXPECTED TO BECOME THE FOCUS WITHIN THE NEAR TERM...WITH HIGH
RESOLUTION MODELS EXPANDING THIS CONVECTION AND DEVELOPING IT
SOUTHWARD THROUGH SATURDAY MORNING. THIS CONVECTION MAY PERSIST IN
SOME FORM THROUGH MUCH OF SATURDAY WITH RENEWED STRENGTHENING
LATER TODAY AS AN UPPER JET STREAK PASSES...AND THE BOUNDARY LAYER
SOUTH OF THE EARLY MORNING CONVECTION BECOMES INCREASINGLY
UNSTABLE.

STEEP MID LEVEL LAPSE RATES AND AMPLE SHEAR WILL CONTINUE TO
SUPPORT SEVERE WEATHER WITH LARGE HAIL THE PRIMARY THREAT
EARLY...WITH A GROWING RISK OF DAMAGING WINDS AS THE BOUNDARY
LAYER DEEPENS. AGAIN THE TORNADIC RISK WILL BE LARGELY INDIVIDUAL CELL
DRIVEN BY ANY PERIODIC DEVIANT MOTION OR POSSIBLE BOUNDARY
INTERACTION LEFT FROM RECENT ROUNDS OF CONVECTION.

THE FRONTAL BOUNDARY REMAINS IN PLAY SATURDAY NIGHT THROUGH
SUNDAY...WITH A DEEPENING TROUGH ACROSS THE SOUTHWEST AND
INCREASINGLY FAVORABLE UPPER JET DYNAMICS YIELDING BROAD LIFT
OVERHEAD. DESPITE THE REPEATED ROUNDS OF CONVECTION MODELS
MAINTAIN STEEP LAPSE RATES WHICH WILL ENSURE AMPLE INSTABILITY FOR
A CONTINUED RISK OF SEVERE WEATHER. HEAVY RAINS WILL ALSO BECOME
AN INCREASING CONCERN. AS OF NOW...THE HEAVIEST AMOUNTS HAVE BEEN
VERY LOCALIZED AND NO FAVORED AREA HAS BECOME OVERLY SATURATED.
THAT IS LIKELY TO CHANGE...AND ONCE THESE AREAS ARE
IDENTIFIED...THEN FLOOD WATCHES ARE LIKELY.

THE UPPER TROUGH EJECTS ONE STRONG SHORTWAVE TROUGH ON MONDAY
WHICH WILL PROVIDE A SEVERE WEATHER EPISODE...FOLLOWED QUICKLY BY
A SECOND STRONG SHORTWAVE ON TUESDAY. THIS WAVE TOO WILL PROVIDE A
SEVERE WEATHER EPISODE...AND CURRENT MODEL DATA SUGGEST THIS EVENT
HAS POTENTIAL TO BE RATHER SIGNIFICANT.

THE PATTERN SETTLES FOR A FEW DAYS WEDNESDAY INTO NEXT
WEEKEND...WHEN THE NEXT WAVE ALOFT IS SCHEDULED TO APPROACH THE AREA.

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
AR...NONE.
&&

SHORT TERM...99
LONG TERM....99
AVIATION...10

Hazardous weather outlook, Apr 23, 5:16 AM CDT, 1 hour 6 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
516 AM CDT SAT APR 23 2011

ARZ001-002-010-011-019-020-029-OKZ049-053>076-232330-
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-
516 AM CDT SAT APR 23 2011

...SEVERE THUNDERSTORMS AND HEAVY RAIN LIKELY TODAY...

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

.DAY ONE...TODAY AND TONIGHT.
TORNADO.
	RISK...LIMITED.
	AREA...SOUTHEAST OKLAHOMA AND WEST-CENTRAL ARKANSAS.
	ONSET...LATE AFTERNOON.

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

	AREA AT GREATEST RISK...SOUTHEAST OKLAHOMA AND
        WEST-CENTRAL ARKANSAS.

FLASH FLOOD.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...LATE AFTERNOON AND EVENING.

HEAVY RAIN.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHEAST ARKANSAS.
	ONSET...ONGOING.

DISCUSSION...
SCATTERED THUNDERSTORMS HAVE DEVELOPED RAPIDLY THIS MORNING ACROSS
NORTHEAST OKLAHOMA NORTH OF A QUASI-STATIONARY FRONT THAT SNAKES
ACROSS NORTHWEST ARKANSAS INTO EAST-CENTRAL OKLAHOMA. THESE THUNDERSTORMS
HAVE DEVELOPED IN RESPONSE TO A STRENGTHENING LOW LEVEL JET AND
WILL HAVE THE POTENTIAL TO PRODUCE LARGE HAIL. THIS ACTIVITY IS
EXPECTED TO CONTINUE THROUGH MID-MORNING BEFORE TAPERING OFF.

ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND
SOUTH OF THE FRONTAL BOUNDARY THIS AFTERNOON. THESE STORMS WILL
DEVELOP IN THE MOIST AND UNSTABLE AIRMASS ACROSS SOUTHEAST
OKLAHOMA AND WEST-CENTRAL ARKANSAS AND WILL HAVE THE POTENTIAL
TO BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS THE MAIN
CONCERN. HOWEVER...THE POTENTIAL FOR A TORNADO WILL EXIST.
THESE THUNDERSTORMS WILL DECAY LATE IN THE EVENING AND THE THREAT
FOR THUNDERSTORM DEVELOPMENT WILL AGAIN BE FOCUSED NORTH OF
THE STALLED FRONTAL BOUNDARY LATE TONIGHT.

THE THREAT FOR HEAVY RAIN WILL EXIST WITH ANY THUNDERSTORMS
THAT DEVELOP TODAY. SOME LOCATIONS COULD SEE UPWARDS OF 3 INCHES
OF RAIN THROUGH TONIGHT. FLASH FLOODING WILL BECOME MORE OF CONCERN
AS WE MOVE INTO TONIGHT AS THE GROUND BECOMES MORE SATURATED.

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

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
SUNDAY AND MONDAY...SEVERE THUNDERSTORM POTENTIAL...HEAVY RAIN POTENTIAL.
TUESDAY...SEVERE THUNDERSTORM POTENTIAL.
WEDNESDAY...THUNDERSTORM POTENTIAL.
THURSDAY AND FRIDAY...NO HAZARDS.

EXTENDED DISCUSSION...
THE WEATHER PATTERN WILL CONTINUE TO BE UNSETTLED THROUGH THE MIDDLE OF NEXT
WEEK. THE FRONTAL BOUNDARY THAT IS CURRENTLY ACROSS THE AREA WILL LINGER ACROSS
THE AREA AS THE FLOW ALOFT BECOMES MORE SOUTHWESTERLY. SEVERAL ROUNDS OF THUNDERSTORMS
WILL OCCUR SUNDAY INTO MONDAY AS A SERIES OF UPPER LEVEL DISTURBANCES EMBEDDED
IN THE SOUTHWESTERLY FLOW MOVE ACROSS THE AREA. A POTENT UPPER LEVEL DISTURBANCE
WILL MOVE ACROSS THE AREA MONDAY AFTERNOON AND EVENING ENHANCING THE THREAT FOR
THUNDERSTORMS. AN EVEN MORE SIGNIFICANT UPPER LEVEL SHORTWAVE WILL MOVE ACROSS THE
REGION TUESDAY INTO TUESDAY NIGHT. THE CHANCES OF THUNDERSTORMS WILL FINALLY COME
TO AN END BY WEDNESDAY AFTERNOON AS THIS LAST SHORTWAVE FINALLY USHERS THE STALLED
BOUNDARY OFF TO THE SOUTH AND EAST.

DURING THIS PERIOD OF UNSETTLED WEATHER...SEVERAL ROUNDS OF SEVERE THUNDERSTORMS
CAN BE EXPECTED. THE MOST SIGNIFICANT BOUTS OF SEVERE THUNDERSTORMS COULD COME
MONDAY AFTERNOON/EVENING AND AGAIN TUESDAY EVENING. HEAVY RAIN AND THE POTENTIAL
FOR FLASH FLOODING AND RIVER FLOODING WILL BECOME MORE OF A CONCERN SUNDAY AND
INTO EARLY NEXT WEEK AS THE GROUND BECOME MORES SATURATED.

EMERGENCY MANAGEMENT PLANNING STATEMENT...
EMERGENCY MANAGEMENT OFFICIALS SHOULD BE PREPARED FOR THE POTENTIAL
OF SEVERAL ROUNDS OF SEVERE THUNDERSTORMS AND HEAVY RAINS...WHICH
COULD LEAD TO FLASH FLOODING AND POSSIBLY RIVER FLOODING.

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

In the hours before

Special weather statement, Apr 23, 1:56 AM CDT, 4 hours 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
156 AM CDT SAT APR 23 2011

OKZ049-075-076-230745-
LATIMER OK-LE FLORE OK-PUSHMATAHA OK-
156 AM CDT SAT APR 23 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 245 AM CDT
FOR THE FOLLOWING COUNTIES...

IN SOUTHEAST OKLAHOMA
     CENTRAL LE FLORE...NORTHEASTERN PUSHMATAHA AND SOUTHEASTERN
     LATIMER

AT 156 AM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER ALBION...
MOVING EAST AT 25 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS
STORM INCLUDE...BIG CEDAR...MUSE...WHITESBORO...TALIHINA...
SUMMERFIELD AND ALBION.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 40 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE
THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3500 9480 3459 9459 3459 9510 3472 9516
TIME...MOT...LOC 0656Z 248DEG 23KT 3466 9508

Special weather statement, Apr 23, 2:08 AM CDT, 4 hours 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
208 AM CDT SAT APR 23 2011

OKZ073-075-230745-
LATIMER OK-PITTSBURG OK-
208 AM CDT SAT APR 23 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 245 AM CDT
FOR THE FOLLOWING COUNTIES...

IN SOUTHEAST OKLAHOMA
     SOUTHEASTERN PITTSBURG AND LATIMER

AT 208 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 8 MILES SOUTHWEST
OF HIGGINS...MOVING NORTHEAST AT 40 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...WILBURTON...HIGGINS...DAMON AND
PANOLA.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 40 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE
THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3479 9562 3503 9519 3479 9509 3467 9554
TIME...MOT...LOC 0708Z 244DEG 34KT 3476 9549

Special weather statement, Apr 23, 2:45 AM CDT, 3 hours 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
245 AM CDT SAT APR 23 2011

ARZ019-029-OKZ072-074>076-230845-
CRAWFORD AR-HASKELL OK-LATIMER OK-LE FLORE OK-SEBASTIAN AR-SEQUOYAH
OK-
245 AM CDT SAT APR 23 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 345 AM CDT
FOR THE FOLLOWING COUNTIES...

IN WEST CENTRAL ARKANSAS
     WESTERN SEBASTIAN

IN NORTHWEST ARKANSAS
     SOUTHWESTERN CRAWFORD

IN EAST CENTRAL OKLAHOMA
     SOUTHERN SEQUOYAH

IN SOUTHEAST OKLAHOMA
     HASKELL...NORTHERN LE FLORE AND NORTHEASTERN LATIMER

WINDS GUSTING TO 55 MPH WILL BE LIKELY JUST TO THE NORTH OF AN AREA
OF THUNDERSTORMS MOVING EASTWARD THROUGH SOUTHEAST OKLAHOMA. THESE
WINDS ARE NOT DIRECTLY RELATED TO THE THUNDERSTORM ACTIVITY. ONCE
THE WINDS BEGIN TO GUST...GUSTS ABOVE 35 TO 40 MPH WILL LAST AT
LEAST 15 TO 20 MINUTES.

LAT...LON 3504 9425 3500 9518 3521 9541 3530 9533
      3530 9530 3527 9525 3527 9522 3534 9517
      3536 9514 3539 9514 3554 9437 3535 9420
TIME...MOT...LOC 0743Z 257DEG 34KT 3534 9518 3525 9497
          3508 9501

Special weather statement, Apr 23, 4:46 AM CDT, 1 hour 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
446 AM CDT SAT APR 23 2011

OKZ062-063-068-231015-
CHEROKEE OK-DELAWARE OK-MAYES OK-
446 AM CDT SAT APR 23 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 515 AM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     SOUTHWESTERN DELAWARE AND SOUTHEASTERN MAYES

IN EAST CENTRAL OKLAHOMA
     NORTHERN CHEROKEE

AT 446 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES EAST OF
MURPHY...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...OAKS...LEACH...TWIN OAKS...KANSAS...
PEGGS...MURPHY...LOCUST GROVE AND ROSE.

THIS STORM WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL. RESIDENTS
IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE SIGNIFICANT WEATHER
ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3621 9475 3603 9518 3618 9529 3640 9485
TIME...MOT...LOC 0946Z 241DEG 38KT 3615 9514

Special weather statement, Apr 23, 5:58 AM CDT, 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
558 AM CDT SAT APR 23 2011

ARZ001-231130-
BENTON AR-
558 AM CDT SAT APR 23 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 630 AM CDT
FOR THE FOLLOWING COUNTY...

IN NORTHWEST ARKANSAS
     NORTHWESTERN BENTON

AT 559 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES WEST OF
GRAVETTE...MOVING NORTHEAST AT 40 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...SULPHUR SPRINGS...GRAVETTE AND
HIWASSE.

THIS STORM WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL.

LAT...LON 3649 9420 3631 9455 3642 9461 3650 9462
      3650 9420
TIME...MOT...LOC 1059Z 235DEG 34KT 3644 9451

Special weather statement, Apr 23, 6:22 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
622 AM CDT SAT APR 23 2011

OKZ062-067-068-231200-
CHEROKEE OK-MAYES OK-WAGONER OK-
622 AM CDT SAT APR 23 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 700 AM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     EASTERN WAGONER AND SOUTHEASTERN MAYES

IN EAST CENTRAL OKLAHOMA
     NORTHWESTERN CHEROKEE

AT 623 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 16 MILES WEST OF
PEGGS...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...PEGGS AND ROSE.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 40 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE
THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3624 9504 3606 9495 3596 9538 3605 9544
TIME...MOT...LOC 1123Z 245DEG 38KT 3603 9531

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 7:06 PM CDT	Tornado Warning	TSA	Cherokee	24 min
Apr 22, 7:07 PM CDT	Tornado Warning	TSA	McIntosh, Okfuskee, Okmulgee	23 min
Apr 22, 7:15 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Wagoner	45 min
Apr 22, 7:30 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	45 min
Apr 22, 7:40 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	50 min
Apr 22, 7:40 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	50 min
Apr 22, 7:49 PM CDT	Tornado Warning	TSA	McIntosh, Pittsburg	41 min
Apr 22, 8:10 PM CDT	Areal Flood Advisory	TSA	McIntosh, Okfuskee, Okmulgee	80 min
Apr 22, 8:26 PM CDT	Tornado Warning	TSA	Haskell, McIntosh, Muskogee, Pittsburg	34 min
Apr 22, 8:29 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, McIntosh, Muskogee, Okfuskee, Okmulgee, Pittsburg	46 min
Apr 22, 8:35 PM CDT	Special Weather Statement	TSA	Adair	25 min
Apr 22, 9:12 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, McIntosh, Muskogee, Pittsburg, Sequoyah	48 min
Apr 22, 9:26 PM CDT	Tornado Warning	TSA	Haskell, LeFlore	34 min
Apr 22, 10:04 PM CDT	Special Weather Statement	TSA	Pittsburg	41 min
Apr 22, 10:59 PM CDT	Special Weather Statement	TSA	Adair	31 min
Apr 22, 11:43 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg, Pushmataha	62 min
Apr 22, 11:49 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	41 min
Apr 23, 12:30 AM CDT	Special Weather Statement	TSA	LeFlore	45 min
Apr 23, 12:45 AM CDT	Special Weather Statement	TSA	LeFlore	45 min
Apr 23, 1:13 AM CDT	Special Weather Statement	TSA	LeFlore	32 min
Apr 23, 1:16 AM CDT	Special Weather Statement	TSA	McIntosh, Okmulgee	44 min
Apr 23, 1:37 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	23 min
Apr 23, 1:56 AM CDT	Special Weather Statement	TSA	LeFlore	49 min
Apr 23, 2:08 AM CDT	Special Weather Statement	TSA	Latimer	37 min
Apr 23, 2:34 AM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore, Pushmataha	56 min
Apr 23, 2:45 AM CDT	Special Weather Statement	TSA	Haskell	60 min
Apr 23, 4:16 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Wagoner	29 min
Apr 23, 4:46 AM CDT	Special Weather Statement	TSA	Mayes	29 min
Apr 23, 4:52 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes	38 min
Apr 23, 5:26 AM CDT	Severe Thunderstorm Warning	TSA	Delaware	34 min
Apr 23, 2:37 PM CDT	River Flood Warning	TSA	Adair	4 days
Apr 23, 2:47 PM CDT	River Flood Advisory	TSA	Cherokee, Delaware	50 hr
Apr 23, 3:40 PM CDT	Flash Flood Watch	TSA	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 13 more	4 days
Apr 23, 4:51 PM CDT	Special Weather Statement	TSA	Sequoyah	39 min
Apr 23, 5:08 PM CDT	Severe Thunderstorm Warning	TSA	Adair	29 min
Apr 22, 7:33 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll	24 min
Apr 22, 8:04 PM CDT	Special Weather Statement	TSA	Madison	26 min
Apr 22, 8:26 PM CDT	Severe Thunderstorm Warning	TSA	Washington	13 min
Apr 22, 10:02 PM CDT	Special Weather Statement	TSA	Sebastian	43 min
Apr 22, 10:12 PM CDT	Special Weather Statement	TSA	Carroll	33 min
Apr 22, 10:16 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll	29 min
Apr 23, 12:15 AM CDT	Special Weather Statement	TSA	Carroll, Madison	30 min
Apr 23, 12:39 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison	52 min
Apr 23, 12:49 AM CDT	Special Weather Statement	TSA	Sebastian	56 min
Apr 23, 5:58 AM CDT	Special Weather Statement	TSA	Benton	32 min
Apr 23, 6:40 AM CDT	Special Weather Statement	TSA	Benton	20 min
Apr 23, 7:04 AM CDT	Severe Thunderstorm Warning	TSA	Benton	39 min
Apr 23, 9:15 AM CDT	Special Weather Statement	TSA	Sebastian	30 min
Apr 23, 11:55 AM CDT	Flash Flood Warning	TSA	Carroll	4 hr
Apr 23, 2:49 PM CDT	Special Weather Statement	TSA	Carroll	26 min
Apr 23, 3:20 PM CDT	Flash Flood Warning	TSA	Carroll, Madison	10 hr
Apr 23, 3:25 PM CDT	Special Weather Statement	TSA	Benton, Washington	35 min
Apr 23, 3:43 PM CDT	Areal Flood Advisory	TSA	Benton, Carroll, Madison, Washington	92 min
Apr 23, 4:29 PM CDT	Severe Thunderstorm Warning	TSA	Carroll	61 min
Apr 23, 5:51 PM CDT	Special Weather Statement	TSA	Washington	39 min
Apr 23, 5:53 PM CDT	Special Weather Statement	TSA	Carroll	37 min
Apr 23, 6:00 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Washington	60 min
Apr 23, 6:09 PM CDT	Flash Flood Warning	TSA	Benton, Carroll, Madison, Washington	10 hr
Apr 23, 6:34 PM CDT	Flash Flood Warning	TSA	Crawford	4 hr

Nearby

Special Weather Statements in Oklahoma, 2011 Every special weather statement 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.