Alert archive / Oklahoma / Special Weather Statements in 2013

Special Weather Statement, NWS Norman, OK

June 17, 2013Cotton County, Jackson County, Tillman County, Oklahoma; Wichita County, Texas

NWS Norman, OK issued this special weather statement at Jun 17, 2013, 3:21 AM CDT for Cotton County, Jackson County, Tillman County, Oklahoma; Wichita County, Texas. It was in force for 24 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: Jun 17, 2013, 3:21 AM CDT (08:21 UTC)
Expired: Jun 17, 2013, 3:45 AM CDT
In force: 24 min
Issued by: NWS Norman, OK

Counties Cotton County, OK, Jackson County, OK, Tillman County, OK, Wichita County, TX

The radar

The Altus AFB radar (KFDR), 16 km from the middle of the area, began a volume at 08:22 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, 8.4 hours before the alert went out and 162 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: 2304 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1497 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.1

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 Jun 17, 2:29 AM CDT, 52 minutes earlier.

Area forecast discussion, Jun 17, 2:29 AM CDT, 52 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
229 AM CDT MON JUN 17 2013

.DISCUSSION...
A QLCS/SQUALL LINE CONTINUES TO MOVE QUICKLY S/SEWRD ACROSS OKLAHOMA
THIS MORNING...AND CONTINUES TO BE THE MAIN FORECAST CONCERN. ON ITS
PRESENT TIMING/TRACK...THE QLCS WILL REACH THE OKC METRO BETWEEN
0230 AND 0300 AM CDT. THE OVERALL LINE OF CONVECTION IS FAIRLY
VAST...EXTENDING FROM JUST S OF AMARILLO OFF THE CAPROCK...EWD TO I-
40 ALONG THE OK/TX BORDER...NE THROUGH PONCA CITY...AND N INTO SRN
KS. MESONET OBS ALONG THE PATH HAVE CONTINUED TO REPORT 45 TO 55 MPH
WINDS ALONG THE LINE...HOWEVER...WINDS IN EXCESS OF 60 MPH ARE
POSSIBLE...AND CONTINUE TO BE THE PRIMARY HAZARD. GIVEN ITS
OVERNIGHT HOURS...REPORTS HAVE BEEN SPARSE...BUT THERE WAS A REPORT
OF POWERLINES KNOCKED DOWN IN THE TOWN JET IN ALFALFA COUNTY AS THE
LINE MOVED THROUGH.

EXPECT THE QLCS TO CONTINUE ITS MOVEMENT S/SE AT 35 TO 40 KTS
THROUGH THE MORNING HOURS. DECENT OVERALL CONDITIONS EXIST FOR MCS
MAINTENANCE...WITH GOOD SHEAR/COLD POOL BALANCE WITH 0-3KM SHEAR 0F
20 TO 35 KTS AND MUCAPES 1900 TO 2800 J/KG. THE N/NERN PORTION OF
THE LINE AS IT MOVES THROUGH CENTRAL OK WILL BE THE SECTION TO WATCH
AS CONDITIONS WILL BE MOST FAVORABLE FOR WINDS GREATER THAN 60 MPH.
SFC-600MB THETA E DIFFS WILL BE 20 TO 25 K...WITH THE BEST POCKET OF
MUCAPES RESIDING SWRN THROUGH CENTRAL OK.

AS THE LINE APPROACHES THE RED RIVER VALLEY THROUGH DAWN...IT WILL
BEGIN TO MOVE INTO A LESS FAVORABLE ENVIRONMENT. HOWEVER...RAIN AND
GUSTY WINDS WILL CONTINUE.

THUNDERSTORM CHANCES WILL CONTINUE THROUGH THIS AFTERNOON AS A SFC
FRONTAL BOUNDARY STALLS FROM THE TX PANHANDLE THROUGH SOUTHERN OK.
PRECIP CHANCES WILL CONTINUE THROUGH WEDNESDAY AS THE MID-LEVEL
RIDGE SLOWLY SHIFTS EWD INTO THE HIGH PLAINS...KEEPING A SFC TROUGH
ORIENTED NEAR THE RED RIVER VALLEY.

AS THE RIDGE FINALLY BUILDS OVER THE SOUTHERN PLAINS...HOT AND DRY
CONDITIONS WILL SLOWLY DEVELOP ONCE AGAIN THROUGH THE END OF THE
WEEK...INTO THE WEEKEND.

JTK

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  86  69  83  70 /  60  40  40  40
HOBART OK         93  68  87  68 /  40  60  30  40
WICHITA FALLS TX  94  72  88  72 /  60  50  40  50
GAGE OK           87  64  84  64 /  30  40  30  40
PONCA CITY OK     85  66  84  66 /  50  40  30  20
DURANT OK         90  71  86  70 /  60  50  50  40

&&

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

11/04

Hazardous weather outlook, Jun 17, 1:25 AM CDT, 1 hour 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
125 AM CDT MON JUN 17 2013

OKZ004>048-050>052-TXZ083>090-171730-
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-
125 PM CDT MON JUN 17 2013

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

.DAY ONE...OVERNIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A RISK OF SEVERE THUNDERSTORMS OVERNIGHT MAINLY ALONG
AND SOUTHEAST OF PONCA CITY...ENID...WATONGA AND ELK CITY.

TIMING...
THE MOST LIKELY TIME FOR SEVERE WEATHER WILL BE THROUGH 6 AM MONDAY.

IMPACTS...
THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING...
WIND GUSTS TO 65 MPH
HAIL UP TO THE SIZE OF QUARTERS
VERY HEAVY RAINFALL

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD PLAN
FOR SEVERE WEATHER OPERATIONS.

DISCUSSION...
A LINE OF SEVERE THUNDERSTORMS WILL PUSH QUICKLY ACROSS MUCH OF NORTHERN...
CENTRAL AND SOUTHERN OKLAHOMA OVERNIGHT.  FREQUENT WIND GUSTS TO 50 MPH CAN
BE EXPECTED AS LINE MOVES SOUTHEAST WITH EMBEDDED GUSTS TO 65 MPH.
SOME HAIL TO THE SIZE OF QUARTERS MAY ALSO OCCUR.  THE FAST MOVEMENT OF THE
STORMS MAY LIMIT THE POTENTIAL OF FLOODING...BUT SOME CREEKS AND STREAMS
IN NORTHERN AND CENTRAL OKLAHOMA MAY SEE SIGNIFICANT RISES.

BY EARLY MONDAY MORNING...THE LINE OF STORMS WILL BE ACROSS SOUTH CENTRAL
AND SOUTHEAST OKLAHOMA.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT MONDAY JUN 17.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...100 PERCENT
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...80  PERCENT

OTHER HAZARDOUS WEATHER...
HEAVY RAINFALL MAY RESULT IN SOME FLOODING OF CREEKS AND STREAMS
ACROSS PORTIONS OF NORTHERN AND CENTRAL OKLAHOMA.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORM OUTLOOK...
FOR THE REMAINDER THE WEEK...A FAIRLY ACTIVE WEATHER PATTERN
WILL CONTINUE TO SUPPORT CHANCES FOR SHOWERS AND THUNDERSTORMS FROM
MONDAY AFTERNOON AND EVENING THROUGH EARLY THURSDAY MORNING. A FEW
STRONG TO SEVERE STORMS WITH DAMAGING WIND GUSTS ARE POSSIBLE
THROUGH EARLY THURSDAY.

OTHER HAZARDOUS WEATHER...
PERIODS OF HEAVY RAINFALL MAY CAUSE LOCALIZED FLOODING A VARIOUS
TIMES THROUGH EARLY THURSDAY...ESPECIALLY IN LOW-LYING AND
URBANIZED AREAS.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY 5
AM MONDAY MORNING...OR AS UPDATES ARE NEEDED.

In the hours before

Special weather statement, Jun 17, 2:32 AM CDT, 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
232 AM CDT MON JUN 17 2013

OKZ022-023-035-038-170800-
KIOWA OK-WASHITA OK-CADDO OK-COMANCHE OK-
232 AM CDT MON JUN 17 2013

...SIGNIFICANT WEATHER ADVISORY FOR KIOWA...SOUTHEASTERN WASHITA...
SOUTHWESTERN CADDO AND NORTHERN COMANCHE COUNTIES UNTIL 300 AM CDT...

AT 226 AM CDT...A WIND SHIFT AHEAD OF THUNDERSTORMS EXTENDED
ALONG A LINE EXTENDING FROM CARNEGIE TO ROOSEVELT...MOVING
SOUTHEAST AT 45 MPH.

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

LOCATIONS IMPACTED INCLUDE...
HOBART...CARNEGIE...APACHE...SNYDER...FLETCHER...MOUNTAIN VIEW...
MOUNTAIN PARK...ROOSEVELT...GOTEBO...ROCKY...COOPERTON...LAKE
ELLSWORTH...TOM STEED RESERVOIR...BOONE...MEERS AND LAKE LAWTONKA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3514 9925 3520 9870 3481 9817 3467 9877
      3463 9900 3464 9907 3467 9908 3468 9905
      3469 9904 3470 9909
TIME...MOT...LOC 0726Z 285DEG 38KT 3510 9860 3486 9907

11

Local storm report, Jun 17, 2:53 AM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
253 AM CDT MON JUN 17 2013

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

0244 AM     TSTM WND GST     OKLAHOMA CITY           35.47N 97.51W
06/17/2013  M61 MPH          OKLAHOMA           OK   ASOS

&&

BTHOREN

Special weather statement, Jun 17, 2:55 AM CDT, 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
255 AM CDT MON JUN 17 2013

OKZ023-033-035>038-TXZ085-170830-
HARMON OK-KIOWA OK-CADDO OK-TILLMAN OK-JACKSON OK-COMANCHE OK-
WILBARGER TX-
255 AM CDT MON JUN 17 2013

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN HARMON...SOUTHERN
KIOWA...SOUTHWESTERN CADDO...TILLMAN...JACKSON...COMANCHE AND
NORTHERN WILBARGER COUNTIES UNTIL 330 AM CDT...

AT 251 AM CDT...THE LEADING EDGE OF STRONG AND GUSTY THUNDERSTORM
WINDS EXTENDED ALONG A LINE EXTENDING FROM 3 MILES NORTHWEST OF BOONE
TO 3 MILES EAST OF SNYDER TO 5 MILES SOUTH OF DUKE...MOVING SOUTHEAST
AT 35 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3470 9974 3473 9944 3475 9944 3482 9901
      3515 9857 3470 9809 3439 9868 3416 9923
TIME...MOT...LOC 0751Z 327DEG 29KT 3494 9851 3465 9890 3459 9953

11

Local storm report, Jun 17, 3:07 AM CDT, 14 minutes before

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Local storm report, Jun 17, 3:11 AM CDT, 10 minutes before

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Special weather statement, Jun 17, 3:21 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
Jun 16, 7:04 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady	56 min
Jun 16, 7:10 PM CDT	Severe Thunderstorm Warning	OUN	Garfield	50 min
Jun 16, 8:11 PM CDT	Special Weather Statement	OUN	Grady	34 min
Jun 16, 8:28 PM CDT	Special Weather Statement	OUN	Comanche	32 min
Jun 16, 8:33 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	42 min
Jun 16, 8:56 PM CDT	Special Weather Statement	OUN	Tillman	34 min
Jun 16, 9:02 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Tillman	43 min
Jun 16, 9:14 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	31 min
Jun 16, 9:46 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton	44 min
Jun 16, 10:18 PM CDT	Special Weather Statement	OUN	Harper	27 min
Jun 16, 10:27 PM CDT	Severe Thunderstorm Warning	OUN	Cotton	48 min
Jun 16, 10:32 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	43 min
Jun 16, 11:12 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Ellis, Grant, Harper, Major, Woods and 1 more	48 min
Jun 17, 12:01 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Dewey, Ellis, Garfield, Grant, Harper and 4 more	59 min
Jun 17, 12:33 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Noble	57 min
Jun 17, 12:45 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey, Garfield, Kingfisher, Major and 1 more	45 min
Jun 17, 1:27 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Kingfisher, Lincoln, Logan and 3 more	63 min
Jun 17, 1:32 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Custer, Kingfisher, Washita	43 min
Jun 17, 1:53 AM CDT	Special Weather Statement	OUN	Beckham, Greer, Harmon, Kiowa, Washita	22 min
Jun 17, 2:16 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Cleveland, Grady, Kingfisher, Lincoln and 6 more	59 min
Jun 17, 2:32 AM CDT	Special Weather Statement	OUN	Kiowa	28 min
Jun 17, 2:52 AM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	53 min
Jun 17, 2:55 AM CDT	Special Weather Statement	OUN	Comanche, Jackson, Tillman	35 min
Jun 17, 3:16 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Cleveland, Comanche, Cotton, Garvin, Grady and 7 more	44 min
Jun 17, 3:37 AM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	53 min
Jun 17, 4:02 AM CDT	Special Weather Statement	OUN	Garvin, Jefferson, McClain, Murray, Pontotoc, Pottawatomie and 2 more	28 min
Jun 17, 4:19 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Kiowa, Tillman	41 min
Jun 17, 4:31 AM CDT	Special Weather Statement	OUN	Carter, Hughes, Murray, Pontotoc, Stephens	29 min
Jun 17, 4:54 AM CDT	Severe Thunderstorm Warning	OUN	Cotton, Jefferson, Stephens, Tillman	66 min
Jun 17, 4:57 AM CDT	Special Weather Statement	OUN	Carter, Coal, Johnston, Love, Marshall, Murray	33 min
Jun 17, 5:34 AM CDT	Special Weather Statement	OUN	Atoka, Bryan, Coal, Johnston, Love, Marshall	26 min
Jun 17, 5:55 AM CDT	Special Weather Statement	OUN	Atoka, Bryan, Johnston, Love, Marshall	35 min
Jun 17, 6:16 AM CDT	Severe Thunderstorm Warning	OUN	Love, Marshall	44 min
Jun 17, 6:24 AM CDT	Special Weather Statement	OUN	Bryan	36 min
Jun 17, 7:09 AM CDT	Special Weather Statement	OUN	Bryan	36 min
Jun 16, 10:47 PM CDT	Special Weather Statement	OUN	Foard	28 min
Jun 17, 12:25 AM CDT	Special Weather Statement	OUN	Wilbarger	50 min
Jun 17, 4:36 AM CDT	Special Weather Statement	OUN	Archer, Baylor, Knox	24 min
Jun 17, 12:59 PM CDT	Special Weather Statement	OUN	Clay	31 min
Jun 17, 1:28 PM CDT	Special Weather Statement	OUN	Clay	47 min

Nearby

Special Weather Statements in Oklahoma, 2013 Special Weather Statements in Texas, 2013 Every special weather statement in 2013

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.