Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 130, NWS Norman, OK

April 14, 2012Payne County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 14, 2012, 4:27 AM CDT for Payne County, Oklahoma. It was in force for 63 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 14, 2012, 4:27 AM CDT (09:27 UTC)
Expired: Apr 14, 2012, 5:30 AM CDT
In force: 63 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

County Payne County, OK

The radar

The Norman radar (KTLX), 81 km from the middle of the area, began a volume at 09:28 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, 3:42 AM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 9.5 hours before the alert went out and 97 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: 2227 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 617 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 269 m²/s²
0-3 km storm-relative helicity: 389 m²/s²
Significant tornado parameter: 3.5
Supercell composite: 15.6

Open this sounding in Storm Lab

The text

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

835 
WUUS54 KOUN 140927
SVROUN
OKC119-141030-
/O.NEW.KOUN.SV.W.0130.120414T0927Z-120414T1030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
427 AM CDT SAT APR 14 2012

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PAYNE COUNTY IN NORTH CENTRAL OKLAHOMA...

* UNTIL 530 AM CDT

* AT 420 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED 
  A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL UP 
  TO GOLF BALL SIZE AND DAMAGING WINDS TO 65 MPH. THIS 
  STORM WAS LOCATED NEAR CUSHING...MOVING EAST AT 25 MPH. ANOTHER
  STRONG TO SEVERE STORM WAS LOCATED BETWEEN STILLWATER AND LAKE CARL
  BLACKWELL.  THIS STORM WILL PRODUCE HALF DOLLAR SIZE HAIL AND 
  STRONG WINDS.  

* LOCATIONS IMPACTED INCLUDE...
  STILLWATER...CUSHING...PERKINS...YALE...RIPLEY...
  LAKE CARL BLACKWELL AND INGALLS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE INSIDE A STURDY BUILDING UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3594 9713 3603 9723 3615 9722 3616 9662
      3594 9662
TIME...MOT...LOC 0920Z 262DEG 23KT 3597 9677 

$$

2 follow-up statements

201 
WWUS54 KOUN 140951
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
451 AM CDT SAT APR 14 2012

OKC119-141030-
/O.CON.KOUN.SV.W.0130.000000T0000Z-120414T1030Z/
PAYNE OK-
451 AM CDT SAT APR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM 
CDT FOR PAYNE COUNTY...

AT 449 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND 
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR 
INGALLS...MOVING EAST AT 35 MPH.  THE STORM NEAR CUSHING HAS MOVED 
EAST INTO CREEK COUNTY. 

LOCATIONS IMPACTED INCLUDE...
STILLWATER...CUSHING...PERKINS...YALE...RIPLEY...LAKE CARL 
BLACKWELL AND INGALLS. 

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 3594 9713 3603 9723 3615 9722 3616 9662
      3594 9662
TIME...MOT...LOC 0949Z 247DEG 29KT 3610 9693 

$$

301 
WWUS54 KOUN 141014
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
514 AM CDT SAT APR 14 2012

OKC119-141030-
/O.CON.KOUN.SV.W.0130.000000T0000Z-120414T1030Z/
PAYNE OK-
514 AM CDT SAT APR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM 
CDT FOR EAST CENTRAL PAYNE COUNTY...

AT 508 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND 
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR 
YALE...MOVING EAST AT 25 MPH. 

LOCATIONS IMPACTED INCLUDE...
YALE AND INGALLS. 

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 3606 9685 3610 9690 3615 9686 3616 9662
      3605 9662
TIME...MOT...LOC 1008Z 262DEG 23KT 3612 9678 

$$

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, 2:30 AM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Apr 14, 2:30 AM CDT, 1 hour 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
230 AM CDT SAT APR 14 2012

.DISCUSSION...
ONGOING SEVERE WEATHER MAY CONTINUE UNTIL DAYBREAK ACROSS CENTRAL
AND NORTHERN OKLAHOMA BEFORE FADING/MOVING OUT. STRONG INSTABILITY
AND INCREASINGLY STRONG SHEAR LATER TODAY IS STILL EXPECTED TO
CAUSE A NUMBER OF SUPERCELL TORNADIC THUNDERSTORMS IN WESTERN AND
CENTRAL OKLAHOMA. INDIVIDUAL STORMS WILL LIEKLY MOVE RATHER
QUICKLY TO THE EAST OR NORTHEAT. A FRONT MOVING FROM THE WEST
TONIGHT WILL LIKELY CREATE A LINE OF THUNDERSTORMS THAT WILL MOVE
ACROSS CENTRAL OKLAHOMA WEST TO EAST. THE SEVERE WEATHER POTENTIAL
TODAY REMAINS HIGH AS HAS BEEN ANTICIPATED. AFTER THE FRONT PASSES
EARLY SUNDAY, THE REST OF THE WEEK IS EXPECTED TO BE MILD TO WARM
AND RAIN-FREE.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  79  57  75  49 /  20  60  30  10
HOBART OK         81  51  75  45 /  30  70  20  10
WICHITA FALLS TX  82  58  77  48 /  20  50  40  10
GAGE OK           79  45  70  41 /  30  30  10  10
PONCA CITY OK     77  58  73  45 /  20  70  30  10
DURANT OK         77  65  75  52 /  20  40  70  20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WIND ADVISORY FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING
     FOR OKZ004>047-050-051.

TX...WIND ADVISORY FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING
     FOR TXZ083-085-086-090.

&&

06/09

Hazardous weather outlook, Apr 13, 7:15 PM CDT, 9 hours 12 minutes before

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE NORMAN OK
715 PM CDT FRI APR 13 2012

OKZ004>048-050>052-TXZ083>090-141100-
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-
715 PM CDT FRI APR 13 2012

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 AREA IS GENERALLY NORTHWEST OF AN ATOKA TO LAKE
MURRAY LINE...INCLUDING ALL OF NORTHERN...WESTERN AND CENTRAL
OKLAHOMA...AND WESTERN NORTH TEXAS.

TIMING...
THE MOST LIKELY TIME FOR SEVERE STORMS WILL BE THROUGH 10 PM...BUT
THE RISK WILL CONTINUE THROUGH ABOUT 2 AM.

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS THROUGH EARLY
SATURDAY MORNING.

DISCUSSION...
A DIFFUSE DRYLINE/FRONTAL BOUNDARY WILL CONTINUE TO SHIFT
NORTHWESTWARD AND SHARPEN ACROSS WESTERN OKLAHOMA AND
PORTIONS OF WESTERN NORTH TEXAS THROUGH THIS EVENING. MODERATE LOW
LEVEL WINDS...AND A MOIST AND VERY UNSTABLE AIRMASS...WILL EXIST
OVER THE AREA AHEAD OF THIS FEATURE. GIVEN THE MAGNITUDE OF
INSTABILITY AND WIND SHEAR...SUPERCELLS ARE EXPECTED TO CONTINUE TO
DEVELOP THROUGH MUCH OF THIS EVENING...WITH A THREAT OF VERY LARGE
HAIL...DAMAGING WINDS...AND TORNADOES. THE STRONGEST STORMS WILL
PRODUCE HAIL TO THE SIZE OF BASEBALLS AND DAMAGING WINDS OF 70 MPH.
THE TORNADO THREAT WILL CONTINUE INTO LATE EVENING...AS THE LOW
LEVEL JET INCREASES AIDING IN LOW LEVEL STORM INFLOW AND ROTATION.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT SATURDAY APR 14.
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...
NONE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

THUNDERSTORM OUTLOOK...
A POTENT UPPER LEVEL STORM SYSTEM WILL OVERSPREAD THE REGION
SATURDAY. WITH AN UNSTABLE AIRMASS IN PLACE AND VERY FAVORABLE WIND
FIELDS IN PLACE...SEVERE THUNDERSTORMS ARE EXPECTED. STORMS WILL
INITIALLY FIRE ALONG A DRYLINE OVER WESTERN OKLAHOMA DURING THE LATE
AFTERNOON AND EVENING HOURS. A COLD FRONT WILL BEGIN TO OVERTAKE THE
DRYLINE DURING THE EVENING AND OVERNIGHT...SHIFTING THE THREAT FOR
SEVERE WEATHER EASTWARD THROUGH SATURDAY NIGHT. THE THREAT FOR
SEVERE WEATHER WILL THEN CONTINUE INTO SUNDAY AS THE FRONT MOVES
INTO SOUTHERN AND EASTERN OKLAHOMA. GIVEN VERY FAVORABLE CONDITIONS
FOR SEVERE STORMS...SUPERCELLS ARE EXPECTED SATURDAY AFTERNOON WITH
AN INITIAL THREAT OF VERY LARGE AND DAMAGING HAIL...TORNADOES...AND
DAMAGING WINDS. STRONG TORNADOES WILL ALSO BE POSSIBLE WITH THE
STRONGEST SUPERCELLS. STORMS ARE EXPECTED TO MERGE INTO AN EASTWARD
MOVING SQUALL LINE AHEAD OF THE FRONT LATE SATURDAY NIGHT INTO
SUNDAY WITH A THREAT OF MAINLY HAIL AND DAMAGING WINDS EVOLVING BY
SATURDAY NIGHT INTO SUNDAY. PREPARE NOW FOR THREATENING WEATHER
CONDITIONS. ENSURE STORM SHELTERS AND SAFE ROOMS ARE READY IN THE
EVENT YOU MUST TAKE COVER THIS WEEKEND. THE THREAT OF SEVERE WEATHER
WILL END SUNDAY NIGHT AS A MORE STABLE AIRMASS MOVES INTO THE
SOUTHERN PLAINS.

OTHER HAZARDOUS
WEATHER...NONE.

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

CMS

In the hours before

Local storm report, Apr 14, 12:49 AM CDT, 3 hours 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1249 AM CDT SAT APR 14 2012

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

1242 AM     HAIL             HINTON                  35.47N 98.36W
04/14/2012  E1.25 INCH       CADDO              OK   TRAINED SPOTTER

            HWYS 281 AND 37

&&

DW

Special weather statement, Apr 14, 12:53 AM CDT, 3 hours 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1253 AM CDT SAT APR 14 2012

OKZ017-018-023-024-027-140700-
BLAINE OK-KINGFISHER OK-CADDO OK-GRADY OK-CANADIAN OK-
1253 AM CDT SAT APR 14 2012

...SIGNIFICANT WEATHER ADVISORY FOR BLAINE...SOUTHWESTERN
KINGFISHER...NORTHERN CADDO...NORTHWESTERN GRADY AND CANADIAN
COUNTIES UNTIL 200 AM CDT...

AT 1250 AM CDT...A CLUSTER OF STRONG THUNDERSTORMS WAS LOCATED NEAR
HYDRO...LOOKEBA...GEARY AND CALUMET.  THE STORMS WERE MOVING EAST AT
30 MPH. HAIL NEAR QUARTER SIZE WILL BE POSSIBLE ALONG WITH GUSTY
WINDS TO 55 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF QUARTERS
WIND GUSTS TO 50 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...

LAT...LON 3581 9862 3577 9797 3537 9790 3529 9859
TIME...MOT...LOC 0550Z 270DEG 26KT 3551 9845

Special weather statement, Apr 14, 1:23 AM CDT, 3 hours 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
123 AM CDT SAT APR 14 2012

OKZ019-025-140700-
LOGAN OK-OKLAHOMA OK-
123 AM CDT SAT APR 14 2012

...SIGNIFICANT WEATHER ADVISORY FOR LOGAN AND OKLAHOMA COUNTIES
UNTIL 200 AM CDT...

AT 122 AM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR THE VILLAGE...
MOVING NORTHEAST AT 30 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...

LOCATIONS IMPACTED INCLUDE...
EDMOND...GUTHRIE...THE VILLAGE...NICHOLS HILLS...CIMARRON CITY...
CEDAR VALLEY...NAVINA AND SEWARD.

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

LAT...LON 3594 9724 3552 9749 3553 9767 3555 9768
      3588 9768
TIME...MOT...LOC 0622Z 213DEG 28KT 3563 9759

MBS

Special weather statement, Apr 14, 1:37 AM CDT, 2 hours 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
137 AM CDT SAT APR 14 2012

OKZ005>008-011>013-020-140745-
GRANT OK-WOODS OK-GARFIELD OK-PAYNE OK-KAY OK-MAJOR OK-ALFALFA OK-
NOBLE OK-
137 AM CDT SAT APR 14 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL GRANT...
SOUTHEASTERN WOODS...GARFIELD...NORTH CENTRAL PAYNE...SOUTHWESTERN
KAY...MAJOR...ALFALFA AND NOBLE COUNTIES UNTIL 245 AM CDT...

AT 132 AM CDT...GUSTY SOUTH WINDS TO 55 MPH WILL OCCUR AHEAD
OF SCATTERED THUNDERSTORMS THAT ARE LOCATED OVER CENTRAL OKLAHOMA.
A FEW SEVERE THUNDERSTORMS MAY MOVE INTO NORTH CENTRAL OKLAHOMA
BETWEEN 3 AND 4 AM. AREAS FROM FAIRVIEW TO ENID AND RED ROCK
WILL HAVE THE STRONGER WINDS.

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

LOCATIONS IMPACTED INCLUDE...
ENID...PERRY...FAIRVIEW...WAUKOMIS...GARBER...MORRISON...GLENCOE...
LAHOMA...COVINGTON...HELENA...BILLINGS...RINGWOOD...CARMEN...
DRUMMOND...CLEO SPRINGS...RED ROCK...MARLAND...GOLTRY...
BRECKENRIDGE AND KREMLIN.

LAT...LON 3659 9705 3660 9692 3658 9689 3650 9704
      3634 9703 3634 9693 3625 9693 3624 9682
      3618 9681 3617 9867 3667 9867 3667 9707
TIME...MOT...LOC 0632Z 241DEG 21KT 3632 9749

Special weather statement, Apr 14, 2:53 AM CDT, 1 hour 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
253 AM CDT SAT APR 14 2012

OKZ005>007-011-012-015-017-140900-
GRANT OK-WOODS OK-BLAINE OK-DEWEY OK-GARFIELD OK-MAJOR OK-ALFALFA OK-
253 AM CDT SAT APR 14 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN GRANT...
SOUTHEASTERN WOODS...NORTHERN BLAINE...DEWEY...GARFIELD...MAJOR
AND ALFALFA COUNTIES UNTIL 400 AM CDT...

AT 250 AM CDT...STRONG THUNDERSTORMS WERE ALONG A LINE EXTENDING
FROM CARRIER TO TALOGA...MOVING NORTHEAST AT 35 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...

LOCATIONS IMPACTED INCLUDE...
ENID...FAIRVIEW...WAUKOMIS...OKEENE...SEILING...GARBER...CANTON...
LAHOMA...HELENA...RINGWOOD...DRUMMOND...TALOGA...CLEO SPRINGS...
LONGDALE...GOLTRY...BRECKENRIDGE...KREMLIN...JET...NASH AND ALINE.

SEVERE WEATHER IS NOT EXPECTED AND NO WARNINGS ARE ANTICIPATED AT
THIS TIME.

LAT...LON 3644 9749 3590 9884 3607 9917 3617 9902
      3616 9897 3621 9896 3680 9806
TIME...MOT...LOC 0750Z 246DEG 31KT 3644 9804 3601 9894

WR

Special weather statement, Apr 14, 4:07 AM CDT, 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
407 AM CDT SAT APR 14 2012

OKZ006>008-011>013-015-017-018-140930-
GRANT OK-BLAINE OK-KINGFISHER OK-DEWEY OK-GARFIELD OK-KAY OK-
MAJOR OK-ALFALFA OK-NOBLE OK-
407 AM CDT SAT APR 14 2012

...SIGNIFICANT WEATHER ADVISORY FOR GRANT...BLAINE...KINGFISHER...
NORTHEASTERN DEWEY...GARFIELD...SOUTHWESTERN KAY...MAJOR...
SOUTHEASTERN ALFALFA AND NORTHWESTERN NOBLE COUNTIES UNTIL 430 AM
CDT...

AT 405 AM CDT...A LINE OF THUNDERSTORMS WERE LOCATED FROM NEAR
TONKAWA TO ENID TO DRUMMOND AND WATONGA.  THESE STORMS WERE MOVING
NORTHEAST AROUND 30 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...

LAT...LON 3668 9707 3664 9706 3589 9815 3609 9882
      3682 9774
TIME...MOT...LOC 0905Z 241DEG 52KT 3671 9723 3590 9840

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 7:10 PM CDT	Special Weather Statement	OUN	Blaine	20 min
Apr 13, 7:25 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Kiowa, Washita	65 min
Apr 13, 7:28 PM CDT	Tornado Warning	OUN	Comanche, Kiowa	32 min
Apr 13, 7:31 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon, Jackson	59 min
Apr 13, 7:36 PM CDT	Special Weather Statement	OUN	Blaine, Custer, Kingfisher	24 min
Apr 13, 7:57 PM CDT	Tornado Warning	OUN	Caddo, Kiowa	33 min
Apr 13, 8:02 PM CDT	Tornado Warning	OUN	Greer, Harmon, Jackson	28 min
Apr 13, 8:06 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher	54 min
Apr 13, 8:11 PM CDT	Severe Thunderstorm Warning	OUN	Kiowa, Washita	64 min
Apr 13, 8:15 PM CDT	Special Weather Statement	OUN	Noble	30 min
Apr 13, 8:25 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Kiowa, Washita	65 min
Apr 13, 8:28 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Greer, Jackson, Kiowa, Tillman	62 min
Apr 13, 8:42 PM CDT	Areal Flood Warning	OUN	Caddo, Comanche, Greer, Jackson, Kiowa	3 hr
Apr 13, 8:44 PM CDT	Tornado Warning	OUN	Caddo, Kiowa	21 min
Apr 13, 9:02 PM CDT	Special Weather Statement	OUN	Kay, Major	28 min
Apr 13, 9:25 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer	65 min
Apr 13, 9:26 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Jackson, Kiowa	51 min
Apr 13, 9:32 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Comanche, Grady, Jackson, Kiowa	58 min
Apr 13, 9:50 PM CDT	Special Weather Statement	OUN	Grant, Kay	25 min
Apr 13, 10:06 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Washita	54 min
Apr 13, 10:16 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady	59 min
Apr 13, 10:22 PM CDT	Areal Flood Warning	OUN	Caddo	3 hr
Apr 13, 10:30 PM CDT	Severe Thunderstorm Warning	OUN	Caddo	41 min
Apr 13, 10:54 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Custer, Washita	66 min
Apr 13, 11:09 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, McClain	26 min
Apr 13, 11:13 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady	47 min
Apr 13, 11:24 PM CDT	Special Weather Statement	OUN	Roger Mills	36 min
Apr 13, 11:52 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Custer, Washita	53 min
Apr 14, 12:05 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Woodward	55 min
Apr 14, 12:09 AM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	19 min
Apr 14, 12:22 AM CDT	Severe Thunderstorm Warning	OUN	Kingfisher, Lincoln, Logan, Payne	53 min
Apr 14, 12:43 AM CDT	Special Weather Statement	OUN	Oklahoma	32 min
Apr 14, 12:43 AM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Roger Mills	62 min
Apr 14, 12:46 AM CDT	Special Weather Statement	OUN	Garfield, Noble	44 min
Apr 14, 12:53 AM CDT	Special Weather Statement	OUN	Canadian	67 min
Apr 14, 1:16 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher	44 min
Apr 14, 1:23 AM CDT	Special Weather Statement	OUN	Oklahoma	37 min
Apr 14, 1:26 AM CDT	Severe Thunderstorm Warning	OUN	Logan, Oklahoma	64 min
Apr 14, 1:37 AM CDT	Special Weather Statement	OUN	Garfield, Major, Noble	68 min
Apr 14, 1:48 AM CDT	Wind Advisory	OUN	Alfalfa, Beckham, Blaine, Caddo, Canadian, Carter and 40 more	26 hr
Apr 14, 1:58 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan, Oklahoma	62 min
Apr 14, 2:22 AM CDT	Areal Flood Advisory	OUN	Kingfisher, Logan	113 min
Apr 14, 2:24 AM CDT	Tornado Warning	OUN	Canadian, Logan, Oklahoma	36 min
Apr 14, 2:32 AM CDT	Severe Thunderstorm Warning	OUN	Noble, Payne	43 min
Apr 14, 2:41 AM CDT	Tornado Warning	OUN	Logan, Payne	22 min
Apr 14, 2:53 AM CDT	Special Weather Statement	OUN	Garfield, Major	67 min
Apr 14, 2:54 AM CDT	Tornado Warning	OUN	Logan	36 min
Apr 14, 3:25 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Payne	65 min
Apr 14, 4:07 AM CDT	Special Weather Statement	OUN	Garfield	23 min
Apr 14, 4:29 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Noble	61 min
Apr 14, 5:29 AM CDT	Special Weather Statement	OUN	Noble	46 min
Apr 14, 1:59 PM CDT	Special Weather Statement	OUN	Harper	31 min
Apr 14, 2:21 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper	54 min
Apr 14, 3:01 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Woodward	59 min
Apr 14, 3:10 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods	28 min
Apr 14, 3:18 PM CDT	Tornado Warning	OUN	Harper, Woods	27 min
Apr 14, 3:20 PM CDT	Tornado Warning	OUN	Ellis, Woodward	25 min
Apr 14, 3:40 PM CDT	Tornado Warning	OUN	Ellis, Harper, Woodward	35 min
Apr 14, 4:06 PM CDT	Special Weather Statement	OUN	Roger Mills	24 min
Apr 14, 4:10 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills, Woodward	50 min
Apr 14, 4:12 PM CDT	Tornado Warning	OUN	Harper, Woods, Woodward	33 min
Apr 14, 4:41 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	49 min
Apr 14, 4:43 PM CDT	Tornado Warning	OUN	Woods	20 min
Apr 14, 4:59 PM CDT	Tornado Warning	OUN	Ellis, Woodward	46 min
Apr 14, 5:01 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	44 min
Apr 14, 5:30 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Roger Mills, Woodward	45 min
Apr 14, 5:44 PM CDT	Tornado Warning	OUN	Major, Woods, Woodward	46 min
Apr 14, 6:01 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Woodward	44 min
Apr 14, 6:07 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	21 min
Apr 14, 6:14 PM CDT	Tornado Warning	OUN	Dewey, Woodward	31 min
Apr 14, 6:27 PM CDT	Tornado Warning	OUN	Woods, Woodward	48 min
Apr 14, 6:43 PM CDT	Tornado Warning	OUN	Major, Woods, Woodward	32 min

Nearby

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.