Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 185, NWS Tulsa, OK

April 24, 20114 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 24, 2011, 11:12 PM CDT for 4 counties in Oklahoma. It was in force for 48 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 24, 2011, 11:12 PM CDT (04:12 UTC)
Expired: Apr 25, 2011, 12:00 AM CDT
In force: 48 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Nowata County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 49 km from the middle of the area, began a volume at 04:12 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

Lamont, OK (KLMN), launched 00:00Z, 4.2 hours before the alert went out and 149 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 598 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 280 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

483 
WUUS54 KTSA 250412
SVRTSA
OKC105-131-143-147-250500-
/O.NEW.KTSA.SV.W.0185.110425T0412Z-110425T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1112 PM CDT SUN APR 24 2011

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN NOWATA COUNTY IN NORTHEAST OKLAHOMA
  NORTHERN ROGERS COUNTY IN NORTHEAST OKLAHOMA
  NORTHERN TULSA COUNTY IN NORTHEAST OKLAHOMA
  WASHINGTON COUNTY IN NORTHEAST OKLAHOMA

* UNTIL MIDNIGHT CDT

* AT 1108 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SKIATOOK...
  MOVING NORTHEAST AT 50 MPH. THIS STORM HAS A HISTORY OF            
  PRODUCING HAIL TO THE SIZE OF GOLF BALLS.

  STORM HAZARDS INCLUDE...
  DAMAGING GOLF BALL SIZE HAIL...
  WIND GUSTS TO 60 MPH...

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  COLLINSVILLE...VERA...RAMONA...OOLOGAH...TALALA...WATOVA...
  NOWATA...CHELSEA...NEW ALLUWE AND DELAWARE.

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 3690 9574 3653 9539 3626 9599 3627 9601
      3655 9601
TIME...MOT...LOC 0412Z 227DEG 43KT 3642 9596

$$

3 follow-up statements

586 
WWUS54 KTSA 250421
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1121 PM CDT SUN APR 24 2011

OKC143-250431-
/O.CAN.KTSA.SV.W.0185.000000T0000Z-110425T0500Z/
TULSA OK-
1121 PM CDT SUN APR 24 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN TULSA COUNTY IS
CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS MOVED NORTH OUT OF THE 
COUNTY...AND THEREFORE...THE WARNING HAS BEEN CANCELLED.

LAT...LON 3653 9539 3643 9579 3643 9580 3643 9598
      3655 9601 3690 9574
TIME...MOT...LOC 0421Z 226DEG 42KT 3649 9587

$$

OKC105-131-147-250500-
/O.CON.KTSA.SV.W.0185.000000T0000Z-110425T0500Z/
ROGERS OK-NOWATA OK-WASHINGTON OK-
1121 PM CDT SUN APR 24 2011

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR WASHINGTON...SOUTHWESTERN NOWATA AND NORTHERN ROGERS COUNTIES...

AT 1117 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR VERA...MOVING
NORTHEAST AT 50 MPH. THIS STORM HAS A HISTORY OF PRODUCING HAIL TO 
THE SIZE OF GOLF BALLS.

STORM HAZARDS INCLUDE...
DAMAGING GOLF BALL SIZE HAIL...
WIND GUSTS TO 60 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...OOLOGAH...
TALALA...WATOVA...NOWATA...CHELSEA...NEW ALLUWE AND DELAWARE.

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 3653 9539 3643 9579 3643 9580 3643 9598
      3655 9601 3690 9574
TIME...MOT...LOC 0421Z 226DEG 42KT 3649 9587

$$

500 
WWUS54 KTSA 250436
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1136 PM CDT SUN APR 24 2011

OKC147-250446-
/O.CAN.KTSA.SV.W.0185.000000T0000Z-110425T0500Z/
WASHINGTON OK-
1136 PM CDT SUN APR 24 2011

...THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON COUNTY IS
CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS MOVED OUT OF THE 
COUNTY...AND THEREFORE...THE WARNING HAS BEEN CANCELLED.

LAT...LON 3649 9575 3657 9581 3665 9582 3684 9569
      3658 9544
TIME...MOT...LOC 0436Z 224DEG 40KT 3662 9574

$$

OKC105-131-250500-
/O.CON.KTSA.SV.W.0185.000000T0000Z-110425T0500Z/
ROGERS OK-NOWATA OK-
1136 PM CDT SUN APR 24 2011

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR SOUTHWESTERN NOWATA AND NORTHWESTERN ROGERS COUNTIES...

AT 1135 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WATOVA...
MOVING NORTHEAST AT 45 MPH. THIS STORM HAS A HISTORY OF PRODUCING 
HAIL TO THE SIZE OF GOLF BALLS.

STORM HAZARDS INCLUDE...
HALF DOLLAR SIZE HAIL...
WIND GUSTS TO 60 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...WATOVA...
NOWATA...NEW ALLUWE AND DELAWARE.

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 3649 9575 3657 9581 3665 9582 3684 9569
      3658 9544
TIME...MOT...LOC 0436Z 224DEG 40KT 3662 9574

$$

803 
WWUS54 KTSA 250454
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1154 PM CDT SUN APR 24 2011

OKC105-131-250505-
/O.EXP.KTSA.SV.W.0185.000000T0000Z-110425T0500Z/
ROGERS OK-NOWATA OK-
1154 PM CDT SUN APR 24 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NOWATA AND
NORTHWESTERN ROGERS COUNTIES EXPIRES AT MIDNIGHT CDT...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA AND WEAKENED BELOW
SEVERE LIMITS...THEREFORE THE SEVERE THUNDERSTORM WARNING WILL BE
ALLOWED TO EXPIRE.

GUSTY WINDS...SMALL HAIL AND HEAVY RAIN WILL STILL BE POSSIBLE WITH
THIS STORM.

LAT...LON 3649 9575 3657 9581 3665 9582 3684 9569
      3658 9544
TIME...MOT...LOC 0455Z 224DEG 40KT 3677 9555

$$

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 24, 9:41 PM CDT, 1 hour 31 minutes earlier.

Area forecast discussion, Apr 24, 9:41 PM CDT, 1 hour 31 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
941 PM CDT SUN APR 24 2011

...UPDATE...

.DISCUSSION...
BUSY...BUSY...BUSY. ACTIVE SEVERE WEATHER HAS
SHIFTED E INTO AR...ALTHOUGH ISOLATED HAILERS
WILL REMAIN POSSIBLE OVER THE NEXT SEVERAL HOURS.
AS LOW-LEVEL JET INCREASES TONIGHT...EXPECT
PERIODS OF SHOWERS/THUNDERSTORMS TO CONTINUE TO
IMPACT MUCH OF THE FORECAST AREA. CURRENT FLASH
FLOOD WATCH LOOKS GOOD...WITH ADDITIONAL TRAINING
OF STORMS THROUGH THE OVERNIGHT HOURS.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   54  75  49  70 /  90  70  20  10
FSM   57  77  57  74 /  80  80  40  30
MLC   61  79  54  73 /  80  50  30  10
BVO   54  73  47  68 /  90  70  20  10
FYV   58  75  52  70 /  90  80  40  20
BYV   57  76  51  70 /  90  90  50  20
MKO   59  75  50  73 /  90  70  30  20
MIO   54  73  47  69 /  90  80  30  10
F10   55  78  51  70 /  80  60  30  20
HHW   68  80  59  81 /  60  50  40  20

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH UNTIL 7 PM MONDAY FOR OKZ055-OKZ056-OKZ057-
     OKZ058-OKZ060-OKZ061-OKZ062-OKZ063-OKZ066-OKZ067-OKZ068-
     OKZ069-OKZ070-OKZ071-OKZ072-OKZ074-OKZ076.

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

&&

SHORT TERM...18
LONG TERM....18

Hazardous weather outlook, Apr 24, 5:00 PM CDT, 6 hours 12 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
500 PM CDT SUN APR 24 2011

ARZ001-002-010-011-019-020-029-OKZ049-053>076-251000-
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-
500 PM CDT SUN APR 24 2011

...SIGNIFICANT SEVERE WEATHER...FLASH FLOODING AND RIVER FLOODING
FOR THE NEXT FEW DAYS...

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

.DAY ONE...THIS EVENING AND OVERNIGHT.

TORNADO.
	RISK...LIMITED.
	AREA...SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS.
        ONSET...ONGOING.

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

FLASH FLOOD.
	RISK...CRITICAL.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
 	ONSET...ONGOING.

	AREA AT GREATEST RISK...NORTHWEST ARKANSAS AND EAST CENTRAL OKLAHOMA.

HEAVY RAIN.
	RISK...SIGNIFICANT.
 	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
 	ONSET...ONGOING.

DISCUSSION...
A STATIONARY BOUNDARY REMAINS DRAPED ACROSS SOUTHEASTERN OKLAHOMA
INTO THE ARKANSAS RIVER VALLEY LATE THIS AFTERNOON...WITH ONGOING
THUNDERSTORMS GENERALLY ALONG AND NORTH OF THE FRONT. A FEW OF THESE
STORMS COULD BECOME SEVERE INTO THE EVENING HOURS...WITH LARGE HAIL
AND DAMAGING WINDS POSSIBLE. ADDITIONAL THUNDERSTORMS MAY MOVE INTO
OR DEVELOP IN THE WARM SECTOR ACROSS SOUTHEAST OKLAHOMA INTO THE
EVENING...WHERE CAP STRENGTH REMAINS MINIMIZED. ANY STORM THAT
DEVELOPS NEAR OR ON THE BOUNDARY COULD POSE A TORNADO THREAT...AT
LEAST INTO THE EARLY TO MID EVENING.

HEAVY RAINFALL WILL BE A MAJOR CONCERN THIS EVENING AND THROUGH THE
OVERNIGHT HOURS...WITH SHOWERS AND THUNDERSTORMS CONTINUING AS THE
LOW-LEVEL JET STRENGTHENS. WIDESPREAD 2 TO 3 INCH RAINFALL HAS
OCCURRED OVER THE PAST 24 HOURS...WITH LOCAL AMOUNTS AROUND 4 TO 5
INCHES IN PARTS OF NORTHWEST ARKANSAS AND EAST CENTRAL OKLAHOMA.
TRAINING OF THUNDERSTORMS WILL EASILY RESULT IN AN ADDITIONAL INCH
OR TWO OF RAIN OVERNIGHT...RESULTING IN FLASH FLOODING AND PROLONGED
PERIODS OF AREAL AND RIVER FLOODING ACROSS THE REGION. SEVERAL AREA
RIVERS...ESPECIALLY IN THE ILLINOIS RIVER BASIN...WILL REMAIN IN
FLOOD INTO EARLY NEXT WEEK.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
ACTIVATION OF THE REGIONAL SPOTTER NETWORK EXPECTED. EMERGENCY
MANAGERS AND LAW ENFORCEMENT AGENCIES SHOULD MONITOR ANY AREAS
THAT ARE PRONE TO FLOODING...AND BE PREPARED TO TAKE APPROPRIATE
ACTION.

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

EXTENDED DISCUSSION...
THE THREAT FOR SEVERE WEATHER AND HEAVY RAIN WILL CONTINUE INTO
TUESDAY BEFORE FINALLY EXITING TO THE SOUTH AND EAST TUESDAY
NIGHT INTO WEDNESDAY. SEVERE WEATHER WILL BE POSSIBLE MONDAY
AFTERNOON/EVENING AND AGAIN TUESDAY AFTERNOON/EVENING AS A SERIES
OF UPPER LEVEL DISTURBANCES MOVE ACROSS THE PLAINS. THERE WILL BE
THE POTENTIAL FOR TORNADOES...LARGE HAIL AND DAMAGING WINDS WITH
BOTH ROUNDS OF SEVERE WEATHER. THE BEST CHANCES FOR TORNADOES WILL
BE ACROSS SOUTHEAST OKLAHOMA INTO NORTHWEST ARKANSAS.

HEAVY RAIN AND FLOODING WILL BE A MAJOR CONCERN MONDAY AND
TUESDAY AS THE GROUND HAS BECOME MORE SATURATED. FURTHER DETAILS
SEE THE FLASH FLOOD WATCH /OKCFFATSA/ THAT HAS BEEN POSTED THROUGH
MONDAY NIGHT FOR PORTIONS OF EASTERN OKLAHOMA AND NORTHWEST
ARKANSAS.

EMERGENCY MANAGEMENT PLANNING STATEMENT...
EMERGENCY MANAGEMENT OFFICIALS SHOULD BE PREPARED FOR SEVERAL
ROUNDS OF SEVERE WEATHER AND HEAVY FLOODING RAINS.

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

In the hours before

Special weather statement, Apr 24, 10:09 PM CDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1009 PM CDT SUN APR 24 2011

OKZ067-068-070-250345-
CHEROKEE OK-MUSKOGEE OK-WAGONER OK-
1009 PM CDT SUN APR 24 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1045 PM CDT
FOR THE FOLLOWING COUNTIES...

IN EAST CENTRAL OKLAHOMA
     NORTHEASTERN MUSKOGEE AND WESTERN CHEROKEE

IN NORTHEAST OKLAHOMA
     SOUTHEASTERN WAGONER

AT 1009 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES SOUTH OF
MUSKOGEE...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...HULBERT...LOST CITY...MUSKOGEE AND
FORT GIBSON.

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 3606 9509 3580 9491 3563 9536 3572 9545
TIME...MOT...LOC 0309Z 231DEG 38KT 3573 9533

Special weather statement, Apr 24, 10:10 PM CDT, 1 hour 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1010 PM CDT SUN APR 24 2011

OKZ070-072-074-250345-
HASKELL OK-MUSKOGEE OK-SEQUOYAH OK-
1010 PM CDT SUN APR 24 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1045 PM CDT
FOR THE FOLLOWING COUNTIES...

IN EAST CENTRAL OKLAHOMA
     SOUTHEASTERN MUSKOGEE AND WESTERN SEQUOYAH

IN SOUTHEAST OKLAHOMA
     NORTHERN HASKELL

AT 1011 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 2 MILES SOUTHWEST
OF PORUM...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...TAMAHA...SALLISAW...MC KEY...VIAN...
GORE...BOX...BRIARTOWN...PORUM AND WEBBERS FALLS.

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 3546 9475 3524 9527 3531 9534 3540 9534
      3565 9504 3564 9491
TIME...MOT...LOC 0311Z 228DEG 38KT 3534 9527

Special weather statement, Apr 24, 10:25 PM CDT, 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1025 PM CDT SUN APR 24 2011

OKZ053-250415-
CHOCTAW OK-
1025 PM CDT SUN APR 24 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1115 PM CDT
FOR THE FOLLOWING COUNTY...

IN SOUTHEAST OKLAHOMA
     CHOCTAW

AT 1026 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 6 MILES SOUTH OF
BOSWELL...MOVING EAST AT 45 MPH. SOME LOCATIONS THAT WILL BE AFFECTED
BY THIS STORM INCLUDE...HUGO...ORD...FROGVILLE...GRANT...GAY...
GOODLAND...SAWYER...FORT TOWSON...SWINK...BOSWELL...UNGER...SOPER...
MESSER...KENT...HUSKEY...FALLON...SPEER AND APPLE.

THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3389 9552 3388 9554 3394 9558 3389 9569
      3390 9575 3387 9577 3387 9582 3395 9595
      3412 9595 3415 9597 3416 9516 3394 9514
      3396 9523 3390 9525 3389 9532 3386 9534
      3386 9546
TIME...MOT...LOC 0326Z 250DEG 40KT 3394 9582

Special weather statement, Apr 24, 10:42 PM CDT, 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1042 PM CDT SUN APR 24 2011

OKZ072-074-250430-
HASKELL OK-SEQUOYAH OK-
1042 PM CDT SUN APR 24 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1130 PM CDT
FOR THE FOLLOWING COUNTIES...

IN EAST CENTRAL OKLAHOMA
     SEQUOYAH

IN SOUTHEAST OKLAHOMA
     NORTHEASTERN HASKELL

AT 1042 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTH OF
KANIMA...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...COTTONWOOD...KEOTA...KANIMA...
TAMAHA...SALLISAW...GANS...MULDROW...ROLAND...MC KEY...VIAN...
BRUSHY...SHORT...MARBLE CITY...MOFFETT AND DORA.

THIS STORM WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL AND WIND
GUSTS TO 50 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE
THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3537 9446 3534 9451 3533 9458 3534 9459
      3531 9466 3535 9471 3536 9478 3534 9481
      3528 9481 3521 9509 3539 9514 3540 9510
      3547 9507 3550 9510 3565 9477 3565 9454
      3551 9445 3540 9443
TIME...MOT...LOC 0342Z 247DEG 38KT 3536 9499

Local storm report, Apr 24, 11:07 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1107 PM CDT SUN APR 24 2011

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

1103 PM     HAIL             6 W SKIATOOK            36.37N 96.11W
04/24/2011  E0.75 INCH       OSAGE              OK   NWS EMPLOYEE

&&

KAH

Local storm report, Apr 24, 11:10 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1110 PM CDT SUN APR 24 2011

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

1100 PM     HAIL             SKIATOOK                36.37N 96.00W
04/24/2011  E1.75 INCH       TULSA              OK   TRAINED SPOTTER

1109 PM     HAIL             SPERRY                  36.30N 95.99W
04/24/2011  E0.88 INCH       TULSA              OK   BROADCAST MEDIA

            REPORTED ON THE NORTH SIDE OF TOWN ON HIGHWAY 11.

&&

KAH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 7:01 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore	44 min
Apr 24, 7:09 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Rogers, Tulsa, Washington	36 min
Apr 24, 7:17 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata, Rogers	24 min
Apr 24, 7:19 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer	30 min
Apr 24, 7:28 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers, Washington	47 min
Apr 24, 7:40 PM CDT	Special Weather Statement	TSA	Washington	35 min
Apr 24, 7:43 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	27 min
Apr 24, 7:46 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers, Washington	44 min
Apr 24, 7:57 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore	33 min
Apr 24, 8:04 PM CDT	Special Weather Statement	TSA	McIntosh, Muskogee	26 min
Apr 24, 8:27 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore	63 min
Apr 24, 8:45 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	45 min
Apr 24, 8:51 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Creek, Delaware, McIntosh, Muskogee and 4 more	5 hr
Apr 24, 8:57 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore	48 min
Apr 24, 9:00 PM CDT	Special Weather Statement	TSA	Creek	30 min
Apr 24, 9:18 PM CDT	River Flood Warning	TSA	Sequoyah	13 hr
Apr 24, 9:27 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	33 min
Apr 24, 9:33 PM CDT	Areal Flood Advisory	TSA	Craig, Creek, Delaware, Mayes, Nowata, Osage and 6 more	3 hr
Apr 24, 9:38 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	35 min
Apr 24, 9:41 PM CDT	Special Weather Statement	TSA	Creek	34 min
Apr 24, 9:43 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata, Rogers	47 min
Apr 24, 9:44 PM CDT	Special Weather Statement	TSA	Rogers	31 min
Apr 24, 10:09 PM CDT	Special Weather Statement	TSA	Cherokee	36 min
Apr 24, 10:10 PM CDT	Special Weather Statement	TSA	Haskell	35 min
Apr 24, 10:18 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee	27 min
Apr 24, 10:25 PM CDT	Special Weather Statement	TSA	Choctaw	50 min
Apr 24, 10:42 PM CDT	Special Weather Statement	TSA	Sequoyah	48 min
Apr 24, 10:50 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Rogers, Tulsa, Washington	25 min
Apr 24, 11:54 PM CDT	Special Weather Statement	TSA	Craig	36 min
Apr 25, 12:05 AM CDT	Flash Flood Warning	TSA	Delaware, Mayes, Rogers, Wagoner	115 min
Apr 25, 12:08 AM CDT	Areal Flood Warning	TSA	Creek, Tulsa	8 hr
Apr 25, 12:25 AM CDT	Special Weather Statement	TSA	Rogers	35 min
Apr 25, 12:34 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Rogers	26 min
Apr 25, 12:54 AM CDT	Areal Flood Warning	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Pittsburg and 1 more	6 hr
Apr 25, 1:42 AM CDT	Special Weather Statement	TSA	Mayes	33 min
Apr 25, 1:52 AM CDT	Areal Flood Warning	TSA	Adair, Cherokee, Creek, Delaware, McIntosh, Muskogee and 4 more	6 hr
Apr 25, 2:00 AM CDT	Areal Flood Warning	TSA	Cherokee, Delaware, Mayes, Rogers, Wagoner	6 hr
Apr 25, 2:11 AM CDT	Special Weather Statement	TSA	Osage	34 min
Apr 25, 2:44 AM CDT	River Flood Warning	TSA	Okmulgee	5 days
Apr 25, 3:02 AM CDT	River Flood Warning	TSA	Creek	21 hr
Apr 25, 3:19 AM CDT	River Flood Warning	TSA	Ottawa	3 days
Apr 25, 3:19 AM CDT	River Flood Warning	TSA	LeFlore	4 days
Apr 25, 3:38 AM CDT	Special Weather Statement	TSA	Tulsa	37 min
Apr 25, 4:05 AM CDT	Special Weather Statement	TSA	Osage	40 min
Apr 25, 4:09 AM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	66 min
Apr 25, 4:25 AM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg, Pushmataha	36 min
Apr 25, 4:49 AM CDT	Flash Flood Warning	TSA	Osage	4 hr
Apr 25, 5:13 AM CDT	Severe Thunderstorm Warning	TSA	Choctaw, LeFlore, Pushmataha	77 min
Apr 25, 6:35 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	25 min
Apr 25, 7:44 AM CDT	Flash Flood Warning	TSA	Craig, Nowata, Ottawa, Washington	4 hr
Apr 25, 8:04 AM CDT	Areal Flood Warning	TSA	Adair, Cherokee, Creek, Delaware, McIntosh, Muskogee and 4 more	8 hr
Apr 25, 8:33 AM CDT	Areal Flood Warning	TSA	Cherokee, Craig, Delaware, Mayes, Wagoner	8 hr
Apr 25, 9:31 AM CDT	Special Weather Statement	TSA	Haskell	29 min
Apr 25, 9:37 AM CDT	Special Weather Statement	TSA	Sequoyah	23 min
Apr 25, 9:49 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Sequoyah	41 min
Apr 25, 10:43 AM CDT	Severe Thunderstorm Warning	TSA	Adair	27 min
Apr 25, 10:49 AM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Craig, Delaware, McIntosh, Mayes and 7 more	3 hr
Apr 25, 10:52 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh	38 min
Apr 25, 10:57 AM CDT	Special Weather Statement	TSA	Pushmataha	33 min
Apr 25, 11:38 AM CDT	Special Weather Statement	TSA	McIntosh	37 min
Apr 25, 11:39 AM CDT	Special Weather Statement	TSA	McCurtain	51 min
Apr 25, 11:50 AM CDT	Flash Flood Warning	TSA	LeFlore, Sequoyah	6 hr
Apr 25, 12:06 PM CDT	Special Weather Statement	TSA	Okmulgee	24 min
Apr 25, 12:06 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	39 min
Apr 25, 12:21 PM CDT	River Flood Warning	TSA	Sequoyah	33 hr
Apr 25, 12:33 PM CDT	Special Weather Statement	TSA	Rogers	42 min
Apr 25, 12:38 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Wagoner	19 min
Apr 25, 12:49 PM CDT	Special Weather Statement	TSA	McIntosh	26 min
Apr 25, 12:55 PM CDT	Special Weather Statement	TSA	Delaware	35 min
Apr 25, 1:05 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Craig, Delaware, McIntosh, Mayes and 7 more	6 hr
Apr 25, 1:37 PM CDT	Special Weather Statement	TSA	McIntosh, Muskogee	53 min
Apr 25, 1:38 PM CDT	Special Weather Statement	TSA	McIntosh, Muskogee	37 min
Apr 25, 1:58 PM CDT	Special Weather Statement	TSA	McIntosh	32 min
Apr 25, 2:10 PM CDT	Special Weather Statement	TSA	Craig	35 min
Apr 25, 2:11 PM CDT	Special Weather Statement	TSA	Craig	34 min
Apr 25, 2:19 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, McIntosh, Muskogee, Pittsburg	41 min
Apr 25, 2:31 PM CDT	Flash Flood Warning	TSA	Haskell, Latimer, McIntosh, Muskogee, Pittsburg, Sequoyah	6 hr
Apr 25, 2:43 PM CDT	River Flood Warning	TSA	Ottawa	41 hr
Apr 25, 2:50 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	40 min
Apr 25, 3:18 PM CDT	Special Weather Statement	TSA	Haskell, Latimer	42 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.