Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 82, NWS Norman, OK

April 23, 2011Carter County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 23, 2011, 8:34 PM CDT for Carter County, Oklahoma. It was in force for 26 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, 8:34 PM CDT (01:34 UTC)
Expired: Apr 23, 2011, 9:00 PM CDT
In force: 26 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

County Carter County, OK

The radar

The Norman radar (KTLX), 122 km from the middle of the area, began a volume at 01:36 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 23, 3:05 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 1.6 hours before the alert went out and 111 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: 1103 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 244 m²/s²
0-3 km storm-relative helicity: 345 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.9

Open this sounding in Storm Lab

The text

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

057 
WUUS54 KOUN 240134
SVROUN
OKC019-240200-
/O.NEW.KOUN.SV.W.0082.110424T0134Z-110424T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
834 PM CDT SAT APR 23 2011

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL CARTER COUNTY IN SOUTHERN OKLAHOMA...

* UNTIL 900 PM CDT

* AT 833 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE 
THUNDERSTORM 5 MILES SOUTHEAST OF LONE GROVE... OR JUST SOUTHWEST OF 
ARDMORE... MOVING NORTHEAST AT 45 MPH.

HAZARDS IN THE WARNING INCLUDE...
HAIL UP TO THE SIZE OF QUARTERS...
WIND GUSTS TO 60 MPH...

* LOCATIONS IN THE WARNING INCLUDE ARDMORE...LONE GROVE AND SPRINGER.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 25 AND 44.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 3434 9729 3436 9710 3407 9713 3407 9730
TIME...MOT...LOC 0133Z 231DEG 39KT 3414 9717

$$

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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 23, 6:40 PM CDT, 1 hour 54 minutes earlier.

Area forecast discussion, Apr 23, 6:40 PM CDT, 1 hour 54 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
640 PM CDT SAT APR 23 2011

.AVIATION...
24/00Z TAFS...SCATTERED MVFR CEILINGS WILL CONTINUE FROM AROUND KLAW
TO KOKC/KOUN MOST OF FORECAST PERIOD...WITH DETERIORATING CONDITIONS
AT THESE SITES...AND THE OTHER TERMINALS BEGINNING OVERNIGHT INTO
TOMORROW...WITH WIDESPREAD MVFR/IFR TOMORROW. STORMS CURRENTLY SOUTH
AND EAST OF TERMINALS EXPECTED TO HAVE MINIMAL IMPACTS ON OUR TAF
SITES. THEIR EVOLUTION/PERSISTENCE WILL AFFECT WHAT HAPPENS
OVERNIGHT...WITH RESPECT TO CHANCES FOR DESPERATE RAIN ACROSS
CENTRAL AND WESTERN PARTS OF OKLAHOMA. ALL MODELS ARE QUITE
AGGRESSIVE WITH AT LEAST LIGHT QPF OVERNIGHT AND TOMORROW. ALTHOUGH
WE WILL KEEP RA/TSRA OUT OF PREDOMINATE WX...WILL GO AHEAD AND
INCLUDE A TEMPO GROUP TOWARD/AFTER SUNRISE SOUTHWEST INTO CENTRAL OK.

&&

.DISCUSSION...
T-STORMS EXPECTED TO DEVELOP MOST ANY TIME LATE THIS AFTERNOON
NEAR AND SOUTH OF THE COLD FRONT THAT EXTENDED FROM NEAR ATOKA...
TO ARDMORE... TO ARCHER CITY TX. THESE STORMS WILL CONTINUE INTO
THE EVENING HOURS WITH A TENDENCY FOR THE CONVECTION TO PROPAGATE
MORE TO THE SE AS THE FRONT SAGS SOUTH DUE TO IT BEING REINFORCED
SOMEWHAT BY T-STORM OUTFLOW. LATER TONIGHT... T-STORM CHANCES
SHOULD IMPROVE FARTHER NORTH ACROSS PARTS OF CENTRAL AND WESTERN
OK IN RESPONSE TO AN INCREASING SOUTHERLY LOW LEVEL JET AND ATTENDANT
WARM ADVECTION. A WEAK WAVE MAY ALSO BE EMBEDDED IN THE SWLY FLOW
ALOFT. MEANWHILE... MODELS ALSO INDICATING SOME ELEVATED CAPE
ACROSS THE REGION.

T-STORM CHANCES FOR SHWRS/STORMS WILL CONTINUE INTO SUNDAY IN
ADVANCE OF A SHORT WAVE THAT WILL BE MOVING EAST THROUGH NM. THE BEST
CHANCES FOR RAIN IN MOST AREAS ARE LIKELY TO BE SUNDAY NIGHT IN
ASSOCIATION WITH STRENGTHENING SYNOPTIC SCALE LIFT OVER THE
SOUTHERN PLAINS. MODELS INDICATE MODERATE HEIGHT FALLS SPREADING
OVER THE AREA WITH THE APPROACH OF THE UPPER WAVE AND LEFT FRONT
QUADRANT OF THE UPPER JET. MEANWHILE LOW LEVEL JET IS FORECAST TO
INCREASE OVER THE REGION AND PULL ELEVATED INSTABILITIES
NORTHWARD.

THE BEST INSTABILITIES ARE EXPECTED TO SHIFT INTO THE SOUTHEAST
PART OF THE AREA ON MONDAY... ALTHOUGH COOL TEMPERATURES ALOFT
ASSOCIATED WITH THE UPPER TROUGH COULD CONTINUE TO PRODUCE
SCATTERED HIGH-BASED LIGHT PRECIPITATION FARTHER BACK TO THE
WEST.

A STRONG JET MAX MOVING THROUGH THE WESTERN US WILL RESULT
IN DEEPENING ANOTHER WAVE OVER THE SOUTHERN ROCKIES AND PLAINS ON
TUESDAY. IN RESPONSE TO THIS NEXT SYSTEM... A SURFACE LOW IS
FORECAST TO DEEPEN OVER THE SOUTHERN HIGH PLAINS WHICH COULD PULL
MORE MOISTURE/INSTABILITY BACK NORTH INTO THE AREA FROM EASTERN
TX. DEPENDING ON THE QUALITY OF MOISTURE RETURN... SCATTERED
SHOWERS AND T-STORMS WILL BE POSSIBLE MAINLY ACROSS THE EAST AND
NORTH. PRECIP CHANCES WILL END WED MORNING AS THE UPPER TROUGH
EXITS THE AREA WITH DRY WEATHER EXPECTED INTO FRIDAY AS THE UPPER
RIDGE MOVES INTO THE SOUTHERN PLAINS.

CONCERNING FIRE WEATHER ISSUES... MONDAY APPEARS TO BE A POTENTIAL
RED FLAG DAY AS A DRYLINE MOVES EAST THROUGH PORTIONS OF SW OK AND
WESTERN N-TX DURING THE DAY. WARM TEMPERATURES AND MODERATELY STRONG
WINDS ALONG WITH LOW HUMIDITIES WILL RAISE FIRE WEATHER CONCERNS.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  54  70  60  76 /  60  40  60  30
HOBART OK         50  71  57  79 /  40  30  40  20
WICHITA FALLS TX  59  76  63  88 /  50  40  40  20
GAGE OK           42  67  49  71 /  40  40  50  20
PONCA CITY OK     50  64  52  69 /  50  50  60  40
DURANT OK         67  80  66  80 /  60  50  50  30

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

06/32

Hazardous weather outlook, Apr 23, 6:20 PM CDT, 2 hours 14 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATE
NATIONAL WEATHER SERVICE NORMAN OK
620 PM CDT SAT APR 23 2011

OKZ004>048-050>052-TXZ083>090-241000-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
620 PM CDT SAT APR 23 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS EVENING AND TONIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT
ACROSS PORTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS.

LOCATION...
THE SLIGHT RISK INCLUDES THE AREA SOUTHEAST OF A LINE FROM
STILLWATER... TO LAWTON OKLAHOMA... TO SEYMOUR TEXAS.

TIMING...
THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE THROUGH 11
PM.  A SECONDARY TIME FOR SEVERE STORMS WILL BE FROM 3 TO 8 AM
SUNDAY.

IMPACTS...
SIGNIFICANT DAMAGE TO AUTOMOBILES...ROOFTOPS...AND VEGETATION FROM
LARGE HAIL UP TO THE SIZE OF TENNIS BALLS.

DAMAGING WINDS TO 60 MPH.

ONE OR TWO TORNADOES.

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS UNTIL 11 PM.

DISCUSSION...
A SLOWLY MOVING COLD FRONT HAS MOVED THROUGH MOST OF SOUTHERN
OKLAHOMA AND WESTERN NORTH TEXAS. THE BEST NEAR SURFACE INSTABILITY
IS LOCATED ALONG AND SOUTHEAST OF A LINE FROM COALGATE... TO ARDMORE
OKLAHOMA... TO HENRIETTA TEXAS LINE AND WILL PROVIDE A MORE
FAVORABLE ENVIRONMENT FOR SEVERE STORMS THIS AFTERNOON AND EVENING.
ELEVATED INSTABILITY BEHIND THE COLD FRONT WILL BE SUFFICIENT FOR
STORMS TO PRODUCE LARGE HAIL...ESPECIALLY ALONG AND SOUTHEAST OF A
LINE FROM HOLDENVILLE... TO PAULS VALLEY... TO LAWTON OKLAHOMA... TO
VERNON AND CROWELL TEXAS. THE STRONGEST STORMS THIS AFTERNOON WILL
BE CAPABLE OF PRODUCING HAIL TO THE SIZE OF TENNIS BALLS...WINDS IN
EXCESS OF 60 MPH...AND PERHAPS TORNADOES.

AREAS ALONG AND SOUTHEAST OF A STILLWATER TO EL RENO AND LAWTON LINE
MAY SEE AN INCREASE IN THUNDERSTORMS DURING THE OVERNIGHT HOURS.
A FEW OF THESE STORMS WILL BE CAPABLE OF PRODUCING HAIL UP TO THE
SIZE OF HALF DOLLARS MAINLY BETWEEN 3 AND 8 AM SUNDAY.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT SUNDAY APR 24.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...90 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...80 PERCENT.

OTHER HAZARDOUS WEATHER...
VERY DRY AIR HAS FILTERED INTO NORTHWEST OKLAHOMA.  HUMIDITY LEVELS
WILL RANGE FROM 25 TO 35 PERCENT THROUGH ABOUT 10 PM.  GUSTY
NORTHEAST WINDS WILL HELP ENHANCE WILDFIRE POTENTIAL.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THUNDERSTORM OUTLOOK...
SEVERE THUNDERSTORMS MAY BECOME ORGANIZED ON SUNDAY AFTERNOON AND
EVENING...ESPECIALLY OVER WESTERN NORTH TEXAS AND SOUTHERN OKLAHOMA.
STORMS WITH VERY LARGE HAIL AND DAMAGING WINDS WILL BE POSSIBLE.
WIDESPREAD COVERAGE OF THUNDERSTORMS WITH FREQUENT LIGHTNING AND
MARGINALLY SEVERE HAIL IS EXPECTED OVER THE REMAINDER OF OKLAHOMA
SUNDAY NIGHT. THIS WILL ALL OCCUR IN ADVANCE OF AN UPPER LEVEL
TROUGH. WHEN THE TROUGH ARRIVES ON MONDAY...THE RISK OF ORGANIZED
SEVERE WEATHER WILL SHIFT INTO CENTRAL AND EASTERN OKLAHOMA.

FINALLY...A SECOND TROUGH MAY BRING THUNDERSTORMS TO OKLAHOMA AND
TEXAS ON TUESDAY...FOLLOWED BY A DRY PERIOD AT THE END OF NEXT WEEK.

OTHER HAZARDOUS WEATHER...
ON MONDAY... A DRYLINE OR PACIFIC COLD FRONT IS FORECAST TO SPREAD
MUCH DRIER AIR INTO WESTERN NORTH TEXAS...AND POSSIBLY SOUTHWEST
OKLAHOMA. THE POSSIBILITY OF WILDFIRES WILL BE INCREASED IF THIS
HAPPENS.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED
BY 5 AM SUNDAY.

In the hours before

Special weather statement, Apr 23, 6:52 PM CDT, 1 hour 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
652 PM CDT SAT APR 23 2011

OKZ050-240015-
LOVE OK-
652 PM CDT SAT APR 23 2011

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR LOVE COUNTY.

AT 653 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 12 MILES SOUTHWEST
OF BURNEYVILLE...MOVING NORTHEAST AT 25 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 40 MPH...

LAT...LON 3380 9722 3383 9721 3386 9717 3390 9720
      3389 9723 3385 9726 3388 9730 3382 9738
      3382 9743 3385 9747 3405 9720 3395 9693
      3393 9698 3386 9699 3380 9709 3374 9708
      3372 9715

CJS

Local storm report, Apr 23, 7:30 PM CDT, 1 hour 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
730 PM CDT SAT APR 23 2011

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

0725 PM     HAIL             BURNEYVILLE             33.90N 97.28W
04/23/2011  E1.75 INCH       LOVE               OK   PUBLIC

            PUBLIC REPORT OF QUARTER TO GOLF BALL SIZED HAIL IN
            BURNEYVILLE.

&&

MA

Special weather statement, Apr 23, 7:34 PM CDT, 1 hour before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
734 PM CDT SAT APR 23 2011

OKZ046-051-240100-
MARSHALL OK-CARTER OK-
734 PM CDT SAT APR 23 2011

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR SOUTHEAST CARTER AND
MARSHALL COUNTIES.

AT 734 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES NORTHWEST
OF LEBANON...MOVING NORTHEAST AT 35 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...

LAT...LON 3399 9693 3401 9693 3401 9697 3407 9697
      3407 9707 3413 9717 3419 9684 3418 9667
      3408 9654 3407 9655 3397 9690

CJS

Local storm report, Apr 23, 8:27 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
827 PM CDT SAT APR 23 2011

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

0756 PM     HAIL             LEON                    33.88N 97.43W
04/23/2011  E1.00 INCH       LOVE               OK   PUBLIC

            DELAYED REPORT OF QUARTER SIZED HAIL IN LEON RELAYED BY
            MARIETTA POLICE DEPARTMENT.

&&

MA

Local storm report, Apr 23, 8:32 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
832 PM CDT SAT APR 23 2011

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

0800 PM     HAIL             GENE AUTRY              34.28N 97.04W
04/23/2011  E1.00 INCH       CARTER             OK   PUBLIC

&&

AG

Local storm report, Apr 23, 8:33 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
833 PM CDT SAT APR 23 2011

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

0820 PM     HAIL             MILL CREEK              34.40N 96.82W
04/23/2011  E1.00 INCH       JOHNSTON           OK   FIRE DEPT/RESCUE

            QUARTER SIZED HAIL REPORTED AT MILL CREEK FIRE
            DEPARTMENT.

&&

MA

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 7:34 PM CDT	Special Weather Statement	OUN	Marshall	26 min
Apr 23, 7:50 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson, Love	55 min
Apr 23, 7:57 PM CDT	Severe Thunderstorm Warning	OUN	Bryan, Carter, Johnston, Love, Marshall	63 min
Apr 23, 8:07 PM CDT	Severe Thunderstorm Warning	OUN	Coal, Johnston, Murray, Pontotoc	38 min
Apr 23, 8:51 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal	24 min
Apr 23, 8:59 PM CDT	Severe Thunderstorm Warning	OUN	Johnston	49 min
Apr 23, 9:06 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	54 min
Apr 23, 9:15 PM CDT	Special Weather Statement	OUN	Pontotoc	15 min
Apr 23, 9:17 PM CDT	Special Weather Statement	OUN	Hughes	13 min
Apr 23, 9:30 PM CDT	Special Weather Statement	OUN	Love	15 min
Apr 23, 10:03 PM CDT	Special Weather Statement	OUN	Bryan	27 min
Apr 23, 10:07 PM CDT	Special Weather Statement	OUN	Carter, Jefferson, Johnston	23 min
Apr 23, 10:26 PM CDT	Severe Thunderstorm Warning	OUN	Tillman	64 min
Apr 23, 10:36 PM CDT	Special Weather Statement	OUN	Lincoln	24 min
Apr 23, 10:46 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	28 min
Apr 23, 10:52 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Tillman	38 min
Apr 23, 10:53 PM CDT	Special Weather Statement	OUN	Carter	22 min
Apr 23, 11:11 PM CDT	Special Weather Statement	OUN	Carter	19 min
Apr 23, 11:19 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton	41 min
Apr 23, 11:27 PM CDT	Severe Thunderstorm Warning	OUN	Cotton	63 min
Apr 23, 11:58 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Grady, Stephens	47 min
Apr 24, 12:28 AM CDT	Severe Thunderstorm Warning	OUN	Cotton, Jefferson, Stephens	62 min
Apr 24, 12:40 AM CDT	Special Weather Statement	OUN	McClain	20 min
Apr 24, 12:53 AM CDT	Special Weather Statement	OUN	Carter	22 min
Apr 24, 1:03 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray, Stephens	57 min
Apr 24, 1:04 AM CDT	Special Weather Statement	OUN	McClain	11 min
Apr 24, 1:27 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson, Stephens	63 min
Apr 24, 1:33 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Noble, Oklahoma, Payne	57 min
Apr 24, 1:34 AM CDT	Special Weather Statement	OUN	Kingfisher	11 min
Apr 24, 1:37 AM CDT	Special Weather Statement	OUN	Tillman	8 min
Apr 24, 1:38 AM CDT	Special Weather Statement	OUN	Cotton	22 min
Apr 24, 1:44 AM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, Stephens	61 min
Apr 24, 1:48 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Tillman	57 min
Apr 24, 1:55 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray, Pontotoc	65 min
Apr 24, 2:27 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Johnston, Murray, Pontotoc	78 min
Apr 24, 2:41 AM CDT	Special Weather Statement	OUN	Logan	34 min
Apr 24, 2:46 AM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, Stephens	44 min
Apr 24, 2:56 AM CDT	Special Weather Statement	OUN	Grady	49 min
Apr 24, 3:00 AM CDT	Special Weather Statement	OUN	Beckham	45 min
Apr 24, 3:54 AM CDT	Special Weather Statement	OUN	Pontotoc	36 min
Apr 24, 3:59 AM CDT	Special Weather Statement	OUN	Roger Mills	46 min
Apr 24, 4:02 AM CDT	Severe Thunderstorm Warning	OUN	Coal, Hughes, Pontotoc	73 min
Apr 24, 4:09 AM CDT	Special Weather Statement	OUN	Custer	51 min
Apr 24, 10:10 AM CDT	Special Weather Statement	OUN	Cleveland	20 min
Apr 24, 11:17 AM CDT	Special Weather Statement	OUN	Cleveland	13 min
Apr 24, 12:49 PM CDT	Special Weather Statement	OUN	Cotton	26 min
Apr 24, 12:59 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Stephens	46 min
Apr 24, 1:39 PM CDT	Severe Thunderstorm Warning	OUN	Grady	51 min
Apr 24, 1:59 PM CDT	Special Weather Statement	OUN	Cleveland	31 min
Apr 24, 2:03 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain, Oklahoma	42 min
Apr 24, 2:24 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Grady, McClain, Pottawatomie	66 min
Apr 24, 2:40 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Murray, Pontotoc	50 min
Apr 24, 2:43 PM CDT	Special Weather Statement	OUN	Oklahoma	32 min
Apr 24, 3:27 PM CDT	Areal Flood Advisory	OUN	Lincoln, Pottawatomie	3 hr
Apr 24, 3:56 PM CDT	Special Weather Statement	OUN	Seminole	19 min
Apr 24, 4:15 PM CDT	Special Weather Statement	OUN	Coal, Hughes, Johnston, Pontotoc	30 min
Apr 24, 4:33 PM CDT	Severe Thunderstorm Warning	OUN	Hughes	42 min
Apr 24, 5:11 PM CDT	Special Weather Statement	OUN	Hughes	19 min
Apr 24, 5:22 PM CDT	Special Weather Statement	OUN	Hughes	23 min
Apr 24, 6:27 PM CDT	Areal Flood Advisory	OUN	Hughes, Lincoln, Pontotoc, Pottawatomie, Seminole	6 hr

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.