Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 118, NWS Norman, OK

April 13, 20124 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 13, 2012, 11:09 PM CDT for 4 counties in 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 13, 2012, 11:09 PM CDT (04:09 UTC)
Expired: Apr 13, 2012, 11:35 PM CDT
In force: 26 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Canadian County, OK, Cleveland County, OK, Grady County, OK, McClain County, OK

The radar

The Norman radar (KTLX), 33 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 13, 8:36 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.2 hours before the alert went out and 20 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.

515 
WUUS54 KOUN 140409
SVROUN
OKC017-027-051-087-140515-
/O.NEW.KOUN.SV.W.0118.120414T0409Z-120414T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
1109 PM CDT FRI APR 13 2012

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME SOUTHEASTERN CANADIAN COUNTY IN CENTRAL OKLAHOMA...
  CLEVELAND COUNTY IN SOUTH CENTRAL OKLAHOMA...
  NORTHEASTERN GRADY COUNTY IN SOUTH CENTRAL OKLAHOMA...
  MCCLAIN COUNTY IN SOUTH CENTRAL OKLAHOMA...

* UNTIL 1215 AM CDT

* AT 1107 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED 
  A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP 
  TO GOLF BALL SIZE AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS 
  STORM WAS LOCATED NEAR AMBER...MOVING EAST AT 30 MPH. 

* LOCATIONS IMPACTED INCLUDE...
  NORMAN...MOORE...NEWCASTLE...NOBLE...TUTTLE...BLANCHARD...
  GOLDSBY...AMBER...COLE...MIDDLEBERG...
  TABLER AND BRIDGE CREEK. 

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 35 BETWEEN MILE MARKERS 102 AND 120.
 INTERSTATE 44 BETWEEN MILE MARKERS 81 AND 113.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

MOVE INSIDE A STURDY BUILDING UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3513 9737 3502 9793 3526 9794 3537 9767
      3538 9741
TIME...MOT...LOC 0403Z 250DEG 25KT 3516 9785 

$$

MBS

2 follow-up statements

225 
WWUS54 KOUN 140420
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1120 PM CDT FRI APR 13 2012

OKC017-027-051-087-140515-
/O.CON.KOUN.SV.W.0118.000000T0000Z-120414T0515Z/
MCCLAIN OK-GRADY OK-CANADIAN OK-CLEVELAND OK-
1120 PM CDT FRI APR 13 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM 
CDT FOR EXTREME NORTHWESTERN MCCLAIN...NORTHEASTERN GRADY...
EXTREME SOUTHEASTERN CANADIAN AND CLEVELAND COUNTIES...

AT 1119 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND 
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR 
BRIDGE CREEK...MOVING EAST AT 30 MPH. 

LOCATIONS IMPACTED INCLUDE...
NORMAN...MOORE...NEWCASTLE...TUTTLE AND BRIDGE CREEK. 

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 35 BETWEEN MILE MARKERS 107 AND 120.
 INTERSTATE 44 BETWEEN MILE MARKERS 93 AND 113.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

MOVE INSIDE A STURDY BUILDING UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3511 9778 3530 9786 3537 9767 3538 9741
      3521 9738
TIME...MOT...LOC 0416Z 250DEG 25KT 3519 9775 

$$

MBS

579 
WWUS54 KOUN 140435
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1135 PM CDT FRI APR 13 2012

OKC087-027-051-017-140525-
/O.CAN.KOUN.SV.W.0118.000000T0000Z-120414T0515Z/
MCCLAIN OK-GRADY OK-CANADIAN OK-CLEVELAND OK-
1135 PM CDT FRI APR 13 2012

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME NORTHWESTERN 
MCCLAIN...NORTHEASTERN GRADY...EXTREME SOUTHEASTERN CANADIAN AND 
CLEVELAND COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAD WEAKENED...AND WAS NO 
LONGER SEVERE. THEREFORE THE WARNING HAS BEEN CANCELLED.  

HOWEVER...SMALL HAIL UP TO THE SIZE OF NICKELS....GUSTY WINDS UP TO 
50 MPH...DANGEROUS LIGHTNING...AND HEAVY RAIN ARE STILL POSSIBLE 
WITH THIS THUNDERSTORM.

LAT...LON 3511 9778 3530 9786 3537 9767 3538 9741
      3521 9738
TIME...MOT...LOC 0434Z 250DEG 25KT 3519 9775 

$$

MBS

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 13, 9:35 PM CDT, 1 hour 34 minutes earlier.

Area forecast discussion, Apr 13, 9:35 PM CDT, 1 hour 34 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
935 PM CDT FRI APR 13 2012

.DISCUSSION...
CONVECTION HAS SIGNIFICANTLY MODIFIED THE ENVIRONMENT ACROSS OUR
FORECAST AREA THIS EVENING. BASED ON THE CURRENT SITUATION...ALONG
WITH THE OUTLOOK BASED ON VARIOUS SHORT-TERM GUIDANCE...INCLUDING
THE EXISTING TORNADO WATCH...WE ARE UPDATING MUCH OF THE FORECAST
FOR TONIGHT TO REFLECT THE TRENDS FROM NOW INTO EARLY TOMORROW.

THE MAIN CHANGES INCLUDE MOVING POPS TO WHERE THE GREATEST
CONVECTIVE DEVELOPMENT IS EXPECTED OVERNIGHT...AND EXTENDING THE
MENTION OF SEVERE STORMS TO APPROXIMATELY MATCH THE TORNADO WATCH.

&&

.PREV DISCUSSION... /ISSUED 654 PM CDT FRI APR 13 2012/

DISCUSSION...
THE 00Z AVIATION DISCUSSION IS BELOW.

DISCUSSION...
HAVE LOW CONFIDENCE DURING THE NEXT 24 HOURS.

ISO TO SCT TSRA WILL CONTINUE MAINLY ALONG AND NORTH OF KAXS TO
KADH LINE BEFORE WEAKENING 05-09Z. KEPT VCTS AND TEMPO IN THESE
LOCATIONS INCLUDING KOKC AND KOUN. IF STORM DIRECTLY AFFECTS THESE
LOCATIONS...GUSTY WINDS...HAIL...AND LIFR CONDITIONS WOULD BE
POSSIBLE.

CONDITIONS WILL GENERALLY BE VFR OR MVFR THROUGH 05Z BEFORE MVFR
CONDITIONS OVERSPREAD THE ENTIRE AREA. KOKC...KOUN...AND KHBR
HAVE BEST SHOT FOR MVFR BEFORE 05Z. IFR CONDITIONS ARE POSSIBLE
NEARLY ANYWHERE 05-17Z...THOUGH BELIEVE MOST LOCATIONS WILL REMAIN
MVFR. VFR CONDITIONS WILL LIKELY DEVELOP OVER FAR WEST OKLAHOMA
AND WESTERN NORTH TEXAS 15-20Z.

SOUTH WINDS WILL BE GUSTY...ESPECIALLY AFTER 15Z.

MBS

PREV DISCUSSION... /ISSUED 244 PM CDT FRI APR 13 2012/

DISCUSSION...
BUSY EVENING EXPECTED AS CONVECTION IS BEGINNING ACROSS
SOUTHWEST OKLAHOMA. SEVERE STORMS ARE ANTICIPATED ACROSS
PORTIONS OF WESTERN AND CENTRAL OKLAHOMA THIS EVENING.
WIND FIELDS AND INSTABILITY ARE MORE SUFFICIENT FOR SEVERE
STORMS WITH VERY LARGE HAIL AND ISOLATED TORNADOES. THESE
WILL LIKELY LINGER THROUGH THE FIRST HALF OF THE NIGHT BEFORE
WANING.

ANOTHER SEVERE WEATHER EPISODE IS EXPECTED TO DEVELOP
DURING THE MID TO LATE AFTERNOON ON SATURDAY WITH ISOLATED
STORMS DEVELOPING ALONG THE DRYLINE ACROSS WESTERN OKLAHOMA
AND WORKING EAST AND NORTHEAST TOWARD CENTRAL OKLAHOMA. AGAIN
TORNADIC ACTIVITY WILL BE POSSIBLE WITH THESE STORMS. AS THE
MAIN UPPER WAVE MOVES OUT INTO THE PLAINS SATURDAY NIGHT...
EXPECT A LINE OF STORMS TO DEVELOP AND MOVE EAST ACROSS OKLAHOMA.
THESE STORMS WILL ALSO BE CAPABLE OF LARGE HAIL AND STRONG WINDS.

PRECIP ENDS ACROSS SOUTHEAST OKLAHOMA SUNDAY WITH MUCH OF NEXT OF
NEXT WEEK LOOKING DRY AND MILD.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  65  79  57  75 /  60  20  60  30
HOBART OK         63  81  51  75 /  80  30  70  20
WICHITA FALLS TX  66  82  58  77 /  10  20  50  40
GAGE OK           62  79  45  70 /  30  30  30  10
PONCA CITY OK     65  77  58  73 /  70  20  70  30
DURANT OK         65  77  65  75 /  10  20  40  70

&&

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

23/17

Hazardous weather outlook, Apr 13, 7:15 PM CDT, 3 hours 54 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 13, 9:58 PM CDT, 1 hour 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
958 PM CDT FRI APR 13 2012

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

0953 PM     HAIL             7 S CARTER              35.12N 99.50W
04/13/2012  E2.75 INCH       GREER              OK   TRAINED SPOTTER

            MORAVIA

&&

DW

Local storm report, Apr 13, 10:11 PM CDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1011 PM CDT FRI APR 13 2012

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

1008 PM     HAIL             4 S ANADARKO            35.01N 98.24W
04/13/2012  E1.00 INCH       CADDO              OK   AMATEUR RADIO

            HWY 8

&&

DW

Local storm report, Apr 13, 10:20 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1020 PM CDT FRI APR 13 2012

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

1016 PM     HAIL             1 N ANADARKO            35.08N 98.24W
04/13/2012  E1.00 INCH       CADDO              OK   AMATEUR RADIO

&&

DW

Local storm report, Apr 13, 10:39 PM CDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1039 PM CDT FRI APR 13 2012

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

1028 PM     HAIL             ANADARKO                35.07N 98.24W
04/13/2012  E2.50 INCH       CADDO              OK   AMATEUR RADIO

            WEST SIDE OF TOWN NEAR AIRPORT

&&

DW

Local storm report, Apr 13, 10:43 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1043 PM CDT FRI APR 13 2012

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

1039 PM     HAIL             1 W ROCKY               35.16N 99.08W
04/13/2012  E2.50 INCH       WASHITA            OK   TRAINED SPOTTER

&&

DW

Local storm report, Apr 13, 11:01 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1101 PM CDT FRI APR 13 2012

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

1045 PM     HAIL             3 NW CHICKASHA          35.07N 97.99W
04/13/2012  E1.00 INCH       GRADY              OK   AMATEUR RADIO

&&

DW

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, 11:13 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, 4:27 AM CDT	Severe Thunderstorm Warning	OUN	Payne	63 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.