Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Norman, OK

April 3, 2012Kiowa County, Oklahoma

NWS Norman, OK issued this special weather statement at Apr 3, 2012, 1:25 AM CDT for Kiowa County, Oklahoma. It was in force for 50 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 3, 2012, 1:25 AM CDT (06:25 UTC)
Expired: Apr 3, 2012, 2:15 AM CDT
In force: 50 min
Issued by: NWS Norman, OK

County Kiowa County, OK

The radar

The Altus AFB radar (KFDR), 84 km from the middle of the area, began a volume at 06:28 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.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.4 hours before the alert went out and 134 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: 1334 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 1408 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 61 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 3, 12:37 AM CDT, 48 minutes earlier.

Area forecast discussion, Apr 3, 12:37 AM CDT, 48 minutes before

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Hazardous weather outlook, Apr 2, 11:50 AM CDT, 13 hours 35 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1150 AM CDT MON APR 2 2012

OKZ004>048-050>052-TXZ083>090-031200-
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-
1150 AM CDT MON APR 2 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

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

LOCATION...
THE SLIGHT RISK INCLUDES MUCH OF THE NWS NORMAN FORECAST
AREA.

TIMING...
THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE FROM 4 PM
THROUGH 1 AM.

IMPACTS...
DAMAGE TO AUTOMOBILES...ROOFTOPS...AND VEGETATION FROM DAMAGING HAIL
UP TO TENNIS BALL SIZE.

DAMAGING WIND GUSTS TO 65 MPH.

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL IN WESTERN
OKLAHOMA AND WESTERN NORTH TEXAS SHOULD BE PREPARED FOR
THUNDERSTORMS TO BEGIN BY 4 PM. FARTHER EAST...THE RISK OF SEVERE
WEATHER WILL TAKE PLACE IN THE LATE EVENING AND OVERNIGHT.

DISCUSSION...
HEATING OF AN ADEQUATELY MOIST AIR MASS...ALONG WITH SEASONABLY COOL
TEMPERATURES ALOFT...WILL YIELD MODERATE TO STRONG INSTABILITY
ACROSS THE REGION THIS AFTERNOON. A DRYLINE WILL NEAR FAR
WESTERN PARTS OF OKLAHOMA AND NORTH TEXAS BY LATE AFTERNOON.
AN APPROACHING UPPER LEVEL STORM WILL STALL TO THE WEST OF THE
DRYLINE. BECAUSE THE LOW IS STALLING...THE NUMBER OF STORMS
OCCURRING IN THE AFTERNOON AND EVENING HOURS MAY BE RELATIVELY
FEW...BUT ANY STORMS THAT DEVELOP ARE LIKELY TO BECOME SEVERE.
SUPERCELLS ARE POSSIBLE...WITH AN ENHANCED RISK FOR VERY LARGE AND
DAMAGING HAIL.

DURING THE EVENING AND OVERNIGHT HOURS...THE LOW LEVEL JET WILL
PROMOTE AN INCREASING NUMBER OF THUNDERSTORMS...ESPECIALLY FROM
NORTH TEXAS INTO SOUTHERN OKLAHOMA...AND ALSO ALONG A COLD FRONT
ENTERING NORTHWEST OKLAHOMA. A RISK OF SEVERE WINDS AND HAIL UP
TO 2 INCHES IN DIAMETER WILL CONTINUE THROUGH AT LEAST THE FIRST
HALF OF THE NIGHT...AND THE RISK OF HEAVY RAINFALL WILL INCREASE.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT TUESDAY APR 3.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...80 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...70 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

THUNDERSTORM OUTLOOK...
THE UPPER LEVEL LOW WILL MOVE INTO OKLAHOMA AND WESTERN NORTH TEXAS
ON TUESDAY. THIS WILL BRING INCREASED COVERAGE OF RAIN AND
THUNDERSTORMS. SOME SEVERE WEATHER IS POSSIBLE. A FEW THUNDERSTORMS
ARE AGAIN POSSIBLE IN NORTHERN OKLAHOMA ON WEDNESDAY...AND A SLIGHT
CHANCE OF THUNDERSTORMS IS FORECAST FOR MUCH OF NEXT WEEKEND.

OTHER HAZARDOUS WEATHER...
NONE.

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

In the hours before

Special weather statement, Apr 2, 11:19 PM CDT, 2 hours 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1119 PM CDT MON APR 2 2012

OKZ027-039-030445-
GRADY OK-STEPHENS OK-
1119 PM CDT MON APR 2 2012

...SIGNIFICANT WEATHER ADVISORY FOR GRADY AND STEPHENS COUNTIES
UNTIL 1145 PM CDT...

AT 1117 PM CDT...SEVERE THUNDERSTORMS WERE ALONG A LINE EXTENDING
FROM FORT COBB TO 5 MILES WEST OF ELGIN TO 5 MILES
SOUTHEAST OF FAXON...MOVING EAST AT 35 MPH.

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

LOCATIONS IMPACTED INCLUDE...
DUNCAN...CHICKASHA...MARLOW...TUTTLE...MINCO...COMANCHE...RUSH
SPRINGS...BRAY...NINNEKAH...EMPIRE CITY...AMBER...POCASSET...NORGE...
TABLER...AGAWAM...LAVERTY AND ACME.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
TUESDAY MORNING FOR CENTRAL OKLAHOMA AND NORTHEASTERN TEXAS.

LAT...LON 3432 9808 3532 9808 3534 9785 3533 9782
      3534 9781 3436 9779
TIME...MOT...LOC 0417Z 248DEG 30KT 3518 9842 3477 9836 3437 9851

WR

Local storm report, Apr 2, 11:29 PM CDT, 1 hour 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1129 PM CDT MON APR 02 2012

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

1125 PM     HAIL             LAWTON                  34.60N 98.42W
04/02/2012  E1.00 INCH       COMANCHE           OK   AMATEUR RADIO

            REPORTED BY LAWTON PD

&&

FM

Special weather statement, Apr 2, 11:32 PM CDT, 1 hour 53 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1132 PM CDT MON APR 2 2012

OKZ018-024-030500-
KINGFISHER OK-CANADIAN OK-
1132 PM CDT MON APR 2 2012

...SIGNIFICANT WEATHER ADVISORY FOR KINGFISHER AND CANADIAN
COUNTIES UNTIL 1200 AM CDT...

AT 1131 PM CDT...STRONG THUNDERSTORMS WERE ALONG A LINE EXTENDING
FROM FAY TO COGAR...MOVING EAST AT 40 MPH.

HAZARDS INCLUDE...
HAIL UP TO ONE-HALF INCH DIAMETER...
WIND GUSTS TO 50 MPH...

LOCATIONS IMPACTED INCLUDE...
EL RENO...KINGFISHER...YUKON...CONCHO...MUSTANG...PIEDMONT...
HENNESSEY...UNION CITY...OKARCHE...CALUMET...DOVER...LOYAL...LACEY...
OMEGA AND RICHLAND.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
TUESDAY MORNING FOR CENTRAL OKLAHOMA.

LAT...LON 3535 9769 3538 9822 3614 9819 3614 9774
TIME...MOT...LOC 0431Z 257DEG 35KT 3585 9864 3529 9817

WR

Special weather statement, Apr 2, 11:47 PM CDT, 1 hour 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1147 PM CDT MON APR 2 2012

TXZ083>085-030515-
WILBARGER TX-HARDEMAN TX-FOARD TX-
1147 PM CDT MON APR 2 2012

...SIGNIFICANT WEATHER ADVISORY FOR WILBARGER...SOUTHEASTERN
HARDEMAN AND EAST CENTRAL FOARD COUNTIES UNTIL 1215 AM CDT...

AT 1145 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR THALIA...
MOVING NORTHEAST AT 45 MPH.

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

LOCATIONS IMPACTED INCLUDE...
VERNON...CHILLICOTHE...FARGO...LOCKETT...ODELL...THALIA AND RAYLAND.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
TUESDAY MORNING FOR SOUTHWESTERN OKLAHOMA AND NORTH CENTRAL TEXAS.

LAT...LON 3440 9947 3437 9944 3439 9943 3437 9940
      3438 9939 3430 9920 3426 9919 3385 9950
      3393 9969
TIME...MOT...LOC 0445Z 206DEG 41KT 3394 9957

WR

Special weather statement, Apr 3, 12:34 AM CDT, 51 minutes before

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Special weather statement, Apr 3, 1:25 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 2, 7:06 PM CDT	Special Weather Statement	OUN	Seminole	24 min
Apr 2, 7:26 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills, Woodward	49 min
Apr 2, 8:25 PM CDT	Special Weather Statement	OUN	Beckham, Greer, Harmon, Jackson	50 min
Apr 2, 8:33 PM CDT	Special Weather Statement	OUN	Ellis	27 min
Apr 2, 8:36 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Harmon, Jackson, Roger Mills	39 min
Apr 2, 8:42 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper	33 min
Apr 2, 9:15 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Jackson, Kiowa, Tillman	75 min
Apr 2, 9:18 PM CDT	Special Weather Statement	OUN	Beckham, Roger Mills	42 min
Apr 2, 10:11 PM CDT	Special Weather Statement	OUN	Beckham, Custer, Dewey, Ellis, Harper, Roger Mills and 1 more	34 min
Apr 2, 10:27 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Cotton, Kiowa, Tillman, Washita	63 min
Apr 2, 10:33 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woodward	27 min
Apr 2, 10:58 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	62 min
Apr 2, 11:01 PM CDT	Special Weather Statement	OUN	Blaine, Custer, Dewey	59 min
Apr 2, 11:19 PM CDT	Special Weather Statement	OUN	Grady, Stephens	26 min
Apr 2, 11:27 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Blaine, Dewey, Major, Woods, Woodward	63 min
Apr 2, 11:30 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Cotton, Grady, Stephens	60 min
Apr 2, 11:32 PM CDT	Special Weather Statement	OUN	Canadian, Kingfisher	28 min
Apr 2, 11:52 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	38 min
Apr 3, 12:49 AM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	56 min
Apr 3, 1:39 AM CDT	Severe Thunderstorm Warning	OUN	Tillman	66 min
Apr 3, 2:59 AM CDT	Special Weather Statement	OUN	Cotton, Tillman	46 min
Apr 3, 3:09 AM CDT	Special Weather Statement	OUN	Caddo, Grady	51 min
Apr 3, 6:23 AM CDT	Special Weather Statement	OUN	Jefferson, Stephens	37 min
Apr 3, 1:35 PM CDT	Special Weather Statement	OUN	Carter, Love	25 min
Apr 3, 2:50 PM CDT	Areal Flood Advisory	OUN	Jefferson	3 hr
Apr 3, 3:42 PM CDT	Special Weather Statement	OUN	Coal	33 min
Apr 3, 3:50 PM CDT	Special Weather Statement	OUN	Coal	25 min
Apr 3, 4:40 PM CDT	Special Weather Statement	OUN	Johnston	35 min
Apr 3, 5:58 PM CDT	Special Weather Statement	OUN	Roger Mills	32 min
Apr 3, 6:39 PM CDT	Special Weather Statement	OUN	Dewey, Woodward	36 min
Apr 2, 7:28 PM CDT	Special Weather Statement	OUN	Baylor	32 min
Apr 2, 8:13 PM CDT	Special Weather Statement	OUN	Foard, Hardeman, Knox	17 min
Apr 2, 8:23 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Foard, Hardeman, Knox, Wilbarger	52 min
Apr 2, 10:29 PM CDT	Special Weather Statement	OUN	Archer	46 min
Apr 2, 11:15 PM CDT	Special Weather Statement	OUN	Archer	60 min
Apr 2, 11:47 PM CDT	Special Weather Statement	OUN	Wilbarger	28 min
Apr 3, 12:34 AM CDT	Special Weather Statement	OUN	Wilbarger	41 min
Apr 3, 8:45 AM CDT	Severe Thunderstorm Warning	OUN	Clay	60 min
Apr 3, 9:48 AM CDT	Special Weather Statement	OUN	Clay	27 min
Apr 3, 4:59 PM CDT	Special Weather Statement	OUN	Hardeman	31 min
Apr 3, 5:35 PM CDT	Special Weather Statement	OUN	Hardeman	25 min

Nearby

Special Weather Statements in Oklahoma, 2012 Every special weather statement 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.