Alert archive / Oklahoma / Severe Thunderstorm Watches in 2014

Severe Thunderstorm Watch 237

June 6, 201433 counties in Oklahoma; 20 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jun 6, 2014, 1:43 AM CDT for 33 counties in Oklahoma; 20 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 6, 2014, 1:43 AM CDT (06:43 UTC)
Expired
Jun 6, 2014, 8:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 53 counties

Alfalfa County, OK, Beaver County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cimarron County, OK, Cleveland County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, McClain County, OK, Noble County, OK, Oklahoma County, OK, Payne County, OK, Pottawatomie County, OK, Roger Mills County, OK, Stephens County, OK, Texas County, OK, Washita County, OK, Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 115 km from the middle of the area, began a volume at 06:46 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 6, 1:50 AM CDTSevere Thunderstorm WarningAMADonley, Gray55 min
Jun 6, 1:53 AM CDTSevere Thunderstorm WarningAMAArmstrong, Carson, Potter, Randall67 min
Jun 6, 2:35 AM CDTSevere Thunderstorm WarningAMAGray, Wheeler55 min
Jun 6, 2:49 AM CDTSevere Thunderstorm WarningAMADonley, Gray56 min
Jun 6, 3:27 AM CDTSevere Thunderstorm WarningOUNPayne29 min
Jun 6, 3:30 AM CDTSevere Thunderstorm WarningOUNBeckham, Custer, Roger Mills, Washita45 min
Jun 6, 3:43 AM CDTSevere Thunderstorm WarningAMACollingsworth, Donley, Gray, Wheeler47 min
Jun 6, 4:28 AM CDTSevere Thunderstorm WarningOUNBeckham, Greer, Harmon47 min
Jun 6, 5:00 AM CDTSevere Thunderstorm WarningOUNBeckham, Greer, Harmon, Jackson, Kiowa, Washita45 min
Jun 6, 5:22 AM CDTSevere Thunderstorm WarningAMABeaver, Texas34 min
Jun 6, 5:49 AM CDTSevere Thunderstorm WarningOUNCanadian41 min
Jun 6, 6:05 AM CDTSevere Thunderstorm WarningOUNCaddo, Grady40 min
Jun 6, 6:40 AM CDTSevere Thunderstorm WarningOUNCaddo, Carter, Comanche, Cotton, Garvin, Grady and 2 more50 min
Jun 6, 6:43 AM CDTSevere Thunderstorm WarningOUNCanadian, Cleveland, Grady, Kingfisher, Lincoln, Logan and 3 more47 min
Jun 6, 6:51 AM CDTSevere Thunderstorm WarningOUNGarfield, Kingfisher, Lincoln, Logan, Noble, Payne39 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 6.7 hours before the alert went out and 114 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-pSkew-T log-p diagram, Amarillo Airport, TX at 00:00Z on 2014-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1725 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 2014-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1725 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
2198 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 5, 7:37 PM CDTMesoscale DiscussionSPCCimarron113 min
Jun 5, 7:54 PM CDTMesoscale DiscussionSPCCimarron, Texas2 hr
Jun 5, 9:14 PM CDTMesoscale DiscussionSPCCraig, Delaware, Grant, Kay, Noble, Nowata and 3 more3 hr
Jun 5, 9:36 PM CDTSevere Thunderstorm WatchSPCAdair, Alfalfa, Cherokee, Craig, Creek, Delaware and 15 more7 hr
Jun 5, 11:49 PM CDTMesoscale DiscussionSPCCimarron116 min
Jun 6, 1:17 AM CDTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Canadian, Carter, Cleveland and 28 more88 min
Jun 6, 4:05 AM CDTMesoscale DiscussionSPCAdair, Beckham, Blaine, Caddo, Canadian, Cherokee and 39 more115 min
Jun 6, 5:47 AM CDTMesoscale DiscussionSPCBeaver, Beckham, Blaine, Caddo, Canadian, Comanche and 13 more88 min
Jun 6, 7:02 AM CDTSevere Thunderstorm WatchSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 30 more5 hr
Jun 6, 9:52 AM CDTMesoscale DiscussionSPCLeFlore, McCurtain53 min
Jun 6, 10:18 AM CDTSevere Thunderstorm WatchSPCMcCurtain5 hr
Jun 6, 1:29 PM CDTMesoscale DiscussionSPCAlfalfa, Beaver, Grant, Harper, Major, Woods and 1 more3 hr
Jun 6, 3:23 PM CDTMesoscale DiscussionSPCCimarron, Texas67 min
Jun 6, 3:43 PM CDTTornado WatchSPCBeaver, Cimarron, Texas6 hr
Jun 6, 6:25 PM CDTMesoscale DiscussionSPCBeaver, Cimarron, Texas95 min
Jun 6, 6:44 PM CDTTornado WatchSPCBeaver, Cimarron, Texas6 hr
Jun 6, 1:51 PM CDTMesoscale DiscussionSPCDallam, Deaf Smith, Hartley, Oldham, Parmer114 min
Jun 6, 5:07 PM CDTMesoscale DiscussionSPCAndrews, Ector, Gaines, Loving, Reeves, Ward and 2 more113 min

Nearby

Severe Thunderstorm Watches in Oklahoma, 2014Severe Thunderstorm Watches in Texas, 2014Every severe thunderstorm watch in 2014

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.