Alert archive / Texas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 310, NWS Norman, OK

June 10, 20115 counties in Texas; Harmon County, Jackson County, Tillman County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 10, 2011, 8:32 PM CDT for 5 counties in Texas; Harmon County, Jackson County, Tillman County, Oklahoma. It was in force for 58 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 10, 2011, 8:32 PM CDT (01:32 UTC)
Expired: Jun 10, 2011, 9:30 PM CDT
In force: 58 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Harmon County, OK, Jackson County, OK, Tillman County, OK, Baylor County, TX, Foard County, TX, Hardeman County, TX, Knox County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 83 km from the middle of the area, began a volume at 01:32 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 10, 5:20 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.5 hours before the alert went out and 218 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: 64 J/kg
Mixed-layer CIN: -395 J/kg
Mixed-layer LCL: 2210 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 175 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

581 
WUUS54 KOUN 110132
SVROUN
OKC057-065-141-TXC023-155-197-275-487-110230-
/O.NEW.KOUN.SV.W.0310.110611T0132Z-110611T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
832 PM CDT FRI JUN 10 2011

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BAYLOR COUNTY IN NORTHERN TEXAS...
  FOARD COUNTY IN NORTHERN TEXAS...
  HARDEMAN COUNTY IN NORTHERN TEXAS...
  KNOX COUNTY IN NORTHERN TEXAS...
  WILBARGER COUNTY IN NORTHERN TEXAS...
  HARMON COUNTY IN SOUTHWEST OKLAHOMA...
  SOUTHERN JACKSON COUNTY IN SOUTHWEST OKLAHOMA...
  WESTERN TILLMAN COUNTY IN SOUTHWEST OKLAHOMA...

* UNTIL 930 PM CDT

* AT 831 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED SEVERE  
  THUNDERSTORMS ALONG A LINE EXTENDING FROM CHILDRESS TO QUANAH TO
  CROWELL TO BENJAMIN...MOVING EAST-NORTHEAST AT 20 MPH. HOWEVER...
  STRONG WINDS WILL BE POSSIBLE WELL AWAY FROM THE STORMS THEMSELVES.

HAZARDS IN THE WARNING INCLUDE...
WIND GUSTS TO 70 MPH...
HAIL UP TO THE SIZE OF QUARTERS...

* LOCATIONS IN THE WARNING INCLUDE BENJAMIN...BOMARTON...
  CHILLICOTHE...COPPER BREAKS STATE PARK...CROWELL...DAVIDSON...
  DUKE...ELDORADO...ELMER...FARGO...FREDERICK...GILLILAND...
  GOODLETT...GOREE...GOULD...GRAYBACK...HARROLD...HESS...HOLLIS...
  KNOX CITY...LAKE DIVERSION...LAKE KEMP...LOCKETT...MABELLE...
  MADGE...MARGARET...MCKNIGHT...MCQUEEN...MEDICINE MOUND...MUNDAY...
  ODELL...OKLAUNION...OLUSTEE...QUANAH...RAYLAND...RED SPRINGS...
  RHINELAND...SEYMOUR...THALIA...TRUSCOTT...VERA...VERNON AND
  WESTOVER.

LAT...LON 3340 10000 3383 10001 3384 10006 3411 10007
      3423 10006 3426 10000 3494 10000 3472 9966
      3438 9896 3339 9896
TIME...MOT...LOC 0131Z 253DEG 16KT 3448 9995 3425 9965
          3378 9965 3341 9991

$$


..SPEG.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 7:15 PM CDT	Special Weather Statement	OUN	Foard	15 min
Jun 10, 7:28 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman, Knox	62 min
Jun 10, 9:40 PM CDT	Special Weather Statement	OUN	Archer, Wichita	20 min
Jun 10, 10:59 PM CDT	Special Weather Statement	OUN	Baylor, Foard, Hardeman, Knox, Wilbarger	61 min
Jun 11, 1:11 AM CDT	Special Weather Statement	OUN	Baylor, Foard, Knox	34 min
Jun 10, 7:06 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan, Oklahoma	54 min
Jun 10, 7:59 PM CDT	Special Weather Statement	OUN	Greer	16 min
Jun 10, 8:23 PM CDT	Severe Thunderstorm Warning	OUN	Greer	52 min
Jun 10, 8:40 PM CDT	Special Weather Statement	OUN	Lincoln	20 min
Jun 10, 8:48 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Washita	57 min
Jun 10, 9:17 PM CDT	Special Weather Statement	OUN	Greer	13 min
Jun 10, 9:30 PM CDT	Severe Thunderstorm Warning	OUN	Washita	60 min
Jun 10, 9:42 PM CDT	Special Weather Statement	OUN	Greer, Jackson, Kiowa, Tillman	18 min
Jun 10, 10:00 PM CDT	Special Weather Statement	OUN	Custer	15 min
Jun 10, 10:14 PM CDT	Special Weather Statement	OUN	Custer	16 min
Jun 10, 10:42 PM CDT	Special Weather Statement	OUN	Custer	18 min
Jun 10, 11:04 PM CDT	Special Weather Statement	OUN	Blaine	26 min
Jun 10, 11:27 PM CDT	Special Weather Statement	OUN	Blaine	33 min
Jun 11, 12:45 AM CDT	Special Weather Statement	OUN	Cleveland, McClain, Oklahoma	30 min
Jun 11, 1:43 AM CDT	Special Weather Statement	OUN	Lincoln	17 min
Jun 11, 2:53 AM CDT	Special Weather Statement	OUN	Logan	22 min
Jun 11, 3:19 AM CDT	Special Weather Statement	OUN	Lincoln	26 min
Jun 11, 3:43 AM CDT	Special Weather Statement	OUN	Payne	32 min
Jun 11, 4:56 AM CDT	Fire Weather Watch	OUN	Alfalfa, Beckham, Custer, Dewey, Ellis, Harper and 5 more	24 hr
Jun 11, 3:18 PM CDT	Special Weather Statement	OUN	Woodward	27 min
Jun 11, 3:50 PM CDT	Special Weather Statement	OUN	Harper	25 min
Jun 11, 3:56 PM CDT	Special Weather Statement	OUN	Lincoln	34 min
Jun 11, 4:15 PM CDT	Special Weather Statement	OUN	Harper	15 min
Jun 11, 4:34 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, Seminole	56 min
Jun 11, 5:15 PM CDT	Special Weather Statement	OUN	Canadian	30 min
Jun 11, 5:23 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher	52 min
Jun 11, 5:29 PM CDT	Special Weather Statement	OUN	Custer	16 min
Jun 11, 5:32 PM CDT	Special Weather Statement	OUN	Alfalfa	28 min
Jun 11, 5:58 PM CDT	Special Weather Statement	OUN	Grant	32 min
Jun 11, 6:03 PM CDT	Severe Thunderstorm Warning	OUN	Grant	42 min
Jun 11, 6:07 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey	38 min
Jun 11, 6:22 PM CDT	Special Weather Statement	OUN	Kingfisher	23 min
Jun 11, 6:46 PM CDT	Special Weather Statement	OUN	Blaine	29 min

Nearby

Severe Thunderstorm Warnings in Texas, 2011 Severe Thunderstorm Warnings in Oklahoma, 2011 Every severe thunderstorm warning in 2011

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.