Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 150, NWS Norman, OK

April 15, 20124 counties in Oklahoma; 6 counties in Texas

NWS Norman, OK issued this severe thunderstorm warning at Apr 15, 2012, 1:41 AM CDT for 4 counties in Oklahoma; 6 counties in Texas. It was in force for 64 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 15, 2012, 1:41 AM CDT (06:41 UTC)
Expired: Apr 15, 2012, 2:45 AM CDT
In force: 64 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Comanche County, OK, Jackson County, OK, Kiowa County, OK, Tillman County, OK, Baylor County, TX, Foard County, TX, Hardeman County, TX, Knox County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 47 km from the middle of the area, began a volume at 06:44 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 14, 5:24 PM CDT	Tornado Watch PDS	SPC	9 hr
Apr 14, 10:29 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 15, 1:37 AM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.7 hours before the alert went out and 220 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: 2138 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 752 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 442 m²/s²
0-3 km storm-relative helicity: 585 m²/s²
Significant tornado parameter: 6.7
Supercell composite: 26.3

Open this sounding in Storm Lab

The text

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

979 
WUUS54 KOUN 150641
SVROUN
OKC031-065-075-141-TXC023-155-197-275-485-487-150745-
/O.NEW.KOUN.SV.W.0150.120415T0641Z-120415T0745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
141 AM CDT SUN APR 15 2012

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BAYLOR COUNTY IN NORTH CENTRAL TEXAS...
  COMANCHE COUNTY IN SOUTHWESTERN OKLAHOMA...
  FOARD COUNTY IN NORTH CENTRAL TEXAS...
  SOUTHEASTERN HARDEMAN COUNTY IN NORTH CENTRAL TEXAS...
  JACKSON COUNTY IN SOUTHWESTERN OKLAHOMA...
  SOUTH CENTRAL KIOWA COUNTY IN SOUTHWESTERN OKLAHOMA...
  KNOX COUNTY IN NORTH CENTRAL TEXAS...
  TILLMAN COUNTY IN SOUTHWESTERN OKLAHOMA...
  NORTHWESTERN WICHITA COUNTY IN NORTH CENTRAL TEXAS...
  WILBARGER COUNTY IN NORTH CENTRAL TEXAS...

* UNTIL 245 AM CDT

* AT 134 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED 
  A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING LARGE DAMAGING 
  HAIL UP TO GOLF BALL SIZE AND DESTRUCTIVE WINDS IN EXCESS OF 70 
  MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM WARREN 
  TO 6 MILES NORTHWEST OF O'BRIEN...MOVING EAST AT 30 MPH. 

* LOCATIONS IMPACTED INCLUDE...
  ALTUS...VERNON...SEYMOUR...FREDERICK...ELECTRA...CACHE...MUNDAY...
  SNYDER...KNOX CITY...CROWELL...TIPTON...CHILLICOTHE...
  MEDICINE MOUND...OLUSTEE...CHATTANOOGA...MOUNTAIN PARK...
  DAVIDSON...INDIAHOMA...
  MEDICINE PARK AND GOREE. 

  AT TIMES LOCAL SECTIONS OF THIS LINE MAY PRODUCE VERY STRONG WIND GUSTS 
  OVER 80 MPH. THESE PHENOMENA WILL BE BRIEF BUT WILL OCCASIONALLY OCCUR 
  ON THE LEADING EDGE OF THIS LONG LINE OF THUNDERSTORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH NO WARNING.  GET 
TO A STORM SHELTER OR STURDY BUILDING IF A TORNADO APPROACHES.

&&

LAT...LON 3340 9999 3352 9997 3481 9929 3485 9918
      3482 9915 3478 9846 3341 9918
TIME...MOT...LOC 0634Z 283DEG 27KT 3476 9925 3342 9995 

$$

WR

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 14, 6:44 PM CDT, 6 hours 57 minutes earlier.

Area forecast discussion, Apr 14, 6:44 PM CDT, 6 hours 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
644 PM CDT SAT APR 14 2012

.AVIATION...
THE CURRENT SEVERE CONVECTION IS UNLIKELY TO AFFECT ANY OF OUR TAF
SITES OTHER THAN KVNX THIS EVENING...AS WE EXPECT THE CAP TO
REMAIN TOO STRONG FOR STORMS TO FORM MUCH FARTHER S THAN THE
CURRENT STORMS. A NEW CONVECTIVE LINE IS FORECAST TO FORM AROUND
15/0500Z AS A COLD FRONT OVERTAKES THE DRYLINE AND PRESSES E
ACROSS OK AND N TX. THIS LINE IS LIKELY TO AFFECT ALL OUR SITES
BY THE TIME IT EXITS TO THE E OF KOKC/KOUN AROUND 15/1000Z. SOME
BLDU MAY REACH FAR NW OK THIS EVENING...REDUCING VSBYS TO 3 TO 6
SM AT TIMES.

&&

.PREV DISCUSSION... /ISSUED 252 PM CDT SAT APR 14 2012/

DISCUSSION...
SIG SEVERE WEATHER EVENT BEGINNING TO UNFOLD ACROSS NORTHWEST
OKLAHOMA AND HIGH-RES MODELS INDICATE THAT WE WORST CONDITIONS
THROUGH THE AFTERNOON WILL BE OVER NORTHWEST/WEST-CENTRAL INTO
NORTH-CENTRAL OKLAHOMA WITH INTENSE SUPERCELLS AND POSSIBLY LONG-
TRACK TORNADOES. MODELS DECREASE THE THREAT THE FARTHER SOUTH YOU
GO...AT LEAST INITIALLY WITH SUPERCELLS. LATE THIS EVENING AND
OVERNIGHT THERE IS STILL A FAIRLY SUBSTANTIAL SIGNAL THAT SEVERE
SQUALL-LINE WILL FORM AND SWEEP OVER MUCH OF THE REGION.
RELATIVELY HIGH POPS WERE RETAINED FOR THIS. THIS LINE IS PROGD TO
SURGE THROUGH CENTRAL OKLAHOMA NEAR/JUST AFTER MIDNIGHT AND EXIT
FAR SOUTHEAST OKLAHOMA TOWARD SUNRISE SUNDAY. DAMAGING WINDS AND
EVEN EMBEDDED SHORT-LIVED TORNADOES POSSIBLE WITH THE LINE SO WE
SHOULD NOT LET OUR GUARD DOWN AFTER INITIAL DISCRETE SUPERCELL
MODE IS OVER.

NO CHANGES MADE TO REMAINING PERIODS WITH TRANQUIL WEATHER
EXPECTED UNTIL LATE NEXT WEEK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  57  75  48  72 /  60  30  10   0
HOBART OK         51  75  44  72 /  70  20  10   0
WICHITA FALLS TX  58  77  47  75 /  70  40  10   0
GAGE OK           45  70  40  72 /  40  10  10   0
PONCA CITY OK     58  73  44  73 /  70  30  10   0
DURANT OK         65  75  51  73 /  40  70  20  10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WIND ADVISORY UNTIL 1 AM CDT SUNDAY FOR OKZ004>047-050-051.

TX...WIND ADVISORY UNTIL 1 AM CDT SUNDAY FOR TXZ083-085-086-090.

&&

84/17/23

Hazardous weather outlook, Apr 14, 10:02 PM CDT, 3 hours 39 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
1002 PM CDT SAT APR 14 2012

OKZ004>048-050>052-TXZ083>090-151000-
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-
1002 PM CDT SAT APR 14 2012

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

.DAY ONE...TONIGHT...

THUNDERSTORM OUTLOOK...
THE HIGHEST RISK OF SEVERE THUNDERSTORMS CONTINUES THROUGH 2 AM CDT
TONIGHT ACROSS FAR NORTHERN OKLAHOMA. LESSER RISKS EXIST ACROSS THE
REMAINDER OF OKLAHOMA AND ADJACENT PARTS OF NORTH TEXAS TONIGHT.

LOCATION...
THE HIGHEST RISK AREA COVERS LOCATIONS MAINLY NORTH OF A GAGE TO
PONCA CITY LINE INCLUDING WOODWARD...ALVA...AND ENID.

LESSER RISKS COVER THE REST OF OKLAHOMA AND WESTERN NORTH TEXAS.

TIMING...
SEVERE STORMS WILL DEVELOP AND MOVE INTO FAR WESTERN OKLAHOMA AND
FAR WESTERN NORTH TEXAS BY 1 AM CDT...THEN MOVE EAST...REACHING THE
LAWTON AND WICHITA FALLS AREAS BETWEEN 1 AND 3 AM...AND THE OKLAHOMA
CITY METRO AREA BETWEEN 2 AND 4 AM CDT...THEN SOUTHEAST OKLAHOMA BY
8 AM CDT.

THE DURATION OF SEVERE WEATHER IS EXPECTED TO BE ONE TO TWO HOURS
WITH THE THREAT DIMINISHING AFTERWARDS.

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
NWS NORMAN COUNTY WARNING AREA SHOULD PLAN FOR SEVERE WEATHER
OPERATIONS THROUGH EARLY SUNDAY MORNING.

DISCUSSION...
A COLD FRONT WILL MERGE AND OVERTAKE THE DRYLINE BY MIDNIGHT CDT
TONIGHT. THIS WILL CAUSE A SEVERE SQUALL LINE OF STORMS TO DEVELOP
ACROSS FAR WESTERN OKLAHOMA AND FAR WESTERN NORTH TEXAS. THIS LINE
OF STORMS WILL MOVE EAST DURING THE OVERNIGHT HOURS.

THE PRIMARY THREATS WITH THE SQUALL LINE WILL BE DAMAGING
STRAIGHT-LINE WINDS UP TO 80 MPH AND GOLF BALL SIZE HAIL.
A FEW TORNADOES MAY OCCUR AS WELL.

PREPARE NOW FOR THREATENING WEATHER CONDITIONS. ENSURE STORM
SHELTERS AND SAFE ROOMS ARE READY IN THE EVENT YOU MUST TAKE
COVER TONIGHT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT SUNDAY APR 15.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...100 PERCENT.

OTHER HAZARDOUS WEATHER...
STRONG SOUTH WINDS OF 30 MPH OR GREATER WITH FREQUENT GUSTS
OVER 40 MPH CAN BE EXPECTED THROUGH 1 AM CDT TONIGHT. WINDS THIS
STRONG CAN TOSS LIGHT WEIGHT OBJECTS AROUND AND MAKE TRAVEL
DIFFICULT FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES.

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

THUNDERSTORM OUTLOOK...
STRONG AND SEVERE THUNDERSTORMS ARE EXPECTED TO EXIT FAR SOUTHEAST
OKLAHOMA AROUND DAYBREAK SUNDAY. THERE IS ANOTHER CHANCE FOR
THUNDERSTORMS NEXT FRIDAY.

OTHER HAZARDOUS WEATHER...
NONE.

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

MBS

In the hours before

Local storm report, Apr 14, 11:12 PM CDT, 2 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1112 PM CDT SAT APR 14 2012

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

1107 PM     HAIL             SHATTUCK                36.28N 99.88W
04/14/2012  E1.00 INCH       ELLIS              OK   EMERGENCY MNGR

&&

DW

Special weather statement, Apr 14, 11:19 PM CDT, 2 hours 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1119 PM CDT SAT APR 14 2012

OKZ006-011-015-016-021-022-034-150515-
GREER OK-CUSTER OK-DEWEY OK-WASHITA OK-MAJOR OK-ALFALFA OK-
BECKHAM OK-
1119 PM CDT SAT APR 14 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL GREER...CUSTER...
DEWEY...NORTHWESTERN WASHITA...SOUTHWESTERN MAJOR...ALFALFA AND
BECKHAM COUNTIES UNTIL 1215 AM CDT...

AT 1116 PM CDT...SEVERE THUNDERSTORMS WERE ALONG A LINE EXTENDING
FROM 8 MILES NORTHWEST OF FREEDOM TO 7 MILES NORTHWEST OF QUAIL...
MOVING EAST AT 50 MPH.

HAZARDS INCLUDE...
POTENTIALLY SEVERE WINDS GUSTING OVER 55 MPH...
LARGE HAIL IS EXPECTED WHEN THE STORMS ARRIVE.

LOCATIONS IMPACTED INCLUDE...
ELK CITY...SAYRE...CHEROKEE...ERICK...SEILING...CANUTE...CARMEN...
TALOGA...BUTLER...CARTER...ALINE...BURLINGTON...FOSS...WILLOW...
PUTNAM...BYRON...AMORITA...LAMBERT...FOSS RESERVOIR AND DRIFTWOOD.

MONITOR THE SITUATION CLOSELY. BE READY TO ACT QUICKLY IF A
WARNING IS ISSUED OR IF STORMS THREATEN YOU.

LAT...LON 3698 9811 3504 9945 3503 9999 3524 9990
      3546 9936 3578 9927 3605 9929 3613 9895
      3630 9887 3640 9853 3649 9849 3697 9850
TIME...MOT...LOC 0416Z 254DEG 45KT 3688 9918 3498 10050

WR

Special weather statement, Apr 15, 12:06 AM CDT, 1 hour 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1206 AM CDT SUN APR 15 2012

OKZ036-TXZ083-084-087-150530-
JACKSON OK-HARDEMAN TX-FOARD TX-KNOX TX-
1206 AM CDT SUN APR 15 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN JACKSON...
HARDEMAN...FOARD AND KNOX COUNTIES UNTIL 1230 AM CDT...

AT 1202 AM CDT...SEVERE THUNDERSTORMS WERE ALONG A LINE EXTENDING
FROM 6 MILES NORTHWEST OF CHILDRESS TO LAKE ALAN HENRY...MOVING
EAST AT 35 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
POTENTIALLY SEVERE WINDS GUSTING OVER 55 MPH...

LOCATIONS IMPACTED INCLUDE...
QUANAH...CROWELL...CHILLICOTHE...MEDICINE MOUND...BENJAMIN...
GOODLETT...MARGARET...THALIA...GILLILAND...RHINELAND...TRUSCOTT...
VERA AND COPPERS BREAK STATE PARK.

MONITOR THE SITUATION CLOSELY. BE READY TO ACT QUICKLY IF A
WARNING IS ISSUED OR IF STORMS THREATEN YOU.

LAT...LON 3454 9998 3439 9950 3350 9954 3346 9999
TIME...MOT...LOC 0502Z 258DEG 29KT 3451 10030 3312 10099

WR

Local storm report, Apr 15, 12:39 AM CDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1239 AM CDT SUN APR 15 2012

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

1218 AM     TORNADO          WOODWARD                36.43N 99.39W
04/15/2012                   WOODWARD           OK   BROADCAST MEDIA

            MULTIPLE REORTS OF STRUCTURAL DAMAGE

&&

DW

Local storm report, Apr 15, 12:56 AM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NORMAN OK
1256 AM CDT SUN APR 15 2012

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

1218 AM     TORNADO          WOODWARD                36.43N 99.39W
04/15/2012                   WOODWARD           OK   BROADCAST MEDIA

            MULTIPLE REPORTS OF STRUCTURAL DAMAGE

&&

DW

Special weather statement, Apr 15, 1:29 AM CDT, 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
129 AM CDT SUN APR 15 2012

OKZ017-018-023-024-037-038-TXZ085-086-088-150730-
BLAINE OK-KINGFISHER OK-CADDO OK-TILLMAN OK-CANADIAN OK-COMANCHE OK-
BAYLOR TX-WICHITA TX-WILBARGER TX-
129 AM CDT SUN APR 15 2012

...SIGNIFICANT WEATHER ADVISORY FOR BLAINE...KINGFISHER...CADDO...
TILLMAN...CANADIAN...COMANCHE...BAYLOR...NORTHWESTERN WICHITA AND
SOUTHEASTERN WILBARGER COUNTIES UNTIL 230 AM CDT...

AT 125 AM CDT...SEVERE THUNDERSTORMS WERE ALONG A LINE EXTENDING
FROM OAKWOOD TO TRUSCOTT...
MOVING EAST AT 40 MPH.

HAZARDS INCLUDE...
POTENTIALLY SEVERE WINDS GUSTING OVER 55 MPH...

LOCATIONS IMPACTED INCLUDE...
SEYMOUR...WATONGA...ELECTRA...CACHE...HINTON...HENNESSEY...GEARY...
OKEENE...BINGER...FORT COBB...CALUMET...CHATTANOOGA...INDIAHOMA...
MEDICINE PARK...DOVER...HITCHCOCK...LOOKEBA...GREENFIELD...
BRIDGEPORT AND LOYAL.

MONITOR THE SITUATION CLOSELY. BE READY TO ACT QUICKLY IF A
WARNING IS ISSUED OR IF STORMS THREATEN YOU.

LAT...LON 3353 9931 3413 9891 3435 9901 3506 9852
      3613 9856 3614 9782 3350 9908
TIME...MOT...LOC 0625Z 272DEG 33KT 3604 9875 3367 9986

WR

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 7:06 PM CDT	Tornado Warning	OUN	Alfalfa, Woods	54 min
Apr 14, 7:09 PM CDT	Tornado Warning	OUN	Major, Woods	36 min
Apr 14, 7:35 PM CDT	Tornado Warning	OUN	Alfalfa, Woods	40 min
Apr 14, 8:07 PM CDT	Tornado Warning	OUN	Alfalfa	38 min
Apr 14, 10:35 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	40 min
Apr 14, 10:56 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills, Woodward	49 min
Apr 14, 11:13 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	62 min
Apr 14, 11:19 PM CDT	Special Weather Statement	OUN	Alfalfa, Beckham, Dewey	56 min
Apr 14, 11:41 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Dewey, Ellis, Greer, Harmon and 3 more	64 min
Apr 14, 11:53 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills, Woodward	37 min
Apr 15, 12:00 AM CDT	Tornado Warning	OUN	Ellis, Harper, Woodward	30 min
Apr 15, 12:03 AM CDT	Tornado Warning	OUN	Beckham, Roger Mills	27 min
Apr 15, 12:16 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Ellis, Harper, Major, Woods, Woodward	59 min
Apr 15, 12:16 AM CDT	Tornado Warning	OUN	Ellis, Harper, Woodward	29 min
Apr 15, 12:33 AM CDT	Tornado Warning	OUN	Custer, Dewey, Roger Mills	42 min
Apr 15, 12:39 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Dewey, Ellis, Greer, Harmon and 5 more	66 min
Apr 15, 12:42 AM CDT	Tornado Warning	OUN	Harper, Woods, Woodward	33 min
Apr 15, 1:15 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Dewey, Grant, Major, Woods, Woodward	60 min
Apr 15, 1:29 AM CDT	Special Weather Statement	OUN	Blaine, Caddo, Kingfisher, Tillman	61 min
Apr 15, 1:36 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Comanche, Custer, Dewey and 3 more	54 min
Apr 15, 2:34 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Comanche, Grady, Kingfisher and 3 more	56 min
Apr 15, 2:37 AM CDT	Special Weather Statement	OUN	Lincoln, McClain, Payne, Pottawatomie	68 min
Apr 15, 2:44 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Grady, Jefferson, Stephens, Tillman	45 min
Apr 15, 3:06 AM CDT	Special Weather Statement	OUN	Kay, Noble	24 min
Apr 15, 3:36 AM CDT	Special Weather Statement	OUN	Grady, Kay, Logan, McClain, Noble, Oklahoma and 1 more	54 min
Apr 15, 3:40 AM CDT	Special Weather Statement	OUN	Jefferson, Stephens	65 min
Apr 15, 4:35 AM CDT	Special Weather Statement	OUN	Cleveland, Garvin, Lincoln, Payne, Pottawatomie, Seminole	55 min
Apr 15, 4:37 AM CDT	Special Weather Statement	OUN	Carter, Garvin, Johnston, Love, Marshall, Murray and 1 more	53 min
Apr 15, 5:36 AM CDT	Special Weather Statement	OUN	Coal, Hughes, Pontotoc, Seminole	54 min
Apr 15, 6:52 AM CDT	Special Weather Statement	OUN	Atoka, Coal, Hughes	23 min
Apr 15, 7:53 AM CDT	Severe Thunderstorm Warning	OUN	Bryan	52 min
Apr 15, 8:27 AM CDT	Severe Thunderstorm Warning	OUN	Atoka	48 min
Apr 15, 9:03 AM CDT	Special Weather Statement	OUN	Bryan	27 min
Apr 15, 9:34 AM CDT	Special Weather Statement	OUN	Atoka	26 min
Apr 15, 11:00 AM CDT	Wind Advisory	OUN	Alfalfa, Beckham, Blaine, Custer, Dewey, Ellis and 11 more	6 hr
Apr 15, 12:06 AM CDT	Special Weather Statement	OUN	Foard, Hardeman, Knox	24 min
Apr 15, 4:56 AM CDT	Special Weather Statement	OUN	Archer	49 min

Nearby

Severe Thunderstorm Warnings in Texas, 2012 Severe Thunderstorm Warnings in Oklahoma, 2012 Every severe thunderstorm warning in 2012

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.