Alert archive / Texas / Mesoscale Discussions in 2014

Mesoscale Discussion 1124

June 22, 20144 states

The Storm Prediction Center issued this mesoscale discussion at Jun 22, 2014, 8:19 PM CDT for 4 states. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued: Jun 22, 2014, 8:19 PM CDT (01:19 UTC)
Expired: Jun 22, 2014, 9:45 PM CDT
In force: 86 min
Issued by: the Storm Prediction Center

All 57 counties

Barber County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ford County, KS, Harper County, KS, Kingman County, KS, Kiowa County, KS, Meade County, KS, Pratt County, KS, Seward County, KS, Sumner County, KS, Quay County, NM, Alfalfa County, OK, Beaver County, OK, Beckham County, OK, Blaine County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Kiowa County, OK, Major County, OK, Roger Mills County, OK, Texas County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hall 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, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 146 km from the middle of the area, began a volume at 01:19 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.3 hours before the alert went out and 146 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: 2676 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1781 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 266 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 16.5

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 22, 9:47 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Clark, Comanche, Ford, Kiowa, Meade and 1 more	7 hr
Jun 22, 11:19 PM CDT	Mesoscale Discussion	SPC	Barber, Clark, Comanche, Kiowa	86 min
Jun 23, 5:06 PM CDT	Severe Thunderstorm Watch	SPC	Cheyenne, Greeley, Sherman, Wallace	7 hr
Jun 23, 2:53 PM CDT	Mesoscale Discussion	SPC	Chaves, Eddy, Lea	2 hr
Jun 23, 5:17 PM CDT	Mesoscale Discussion	SPC	Guadalupe, Harding, Quay, San Miguel, Union	118 min
Jun 22, 11:47 PM CDT	Severe Thunderstorm Watch	SPC	Comanche, Cotton, Jackson, Tillman	7 hr
Jun 23, 2:23 AM CDT	Mesoscale Discussion	SPC	Caddo, Canadian, Comanche, Cotton, Greer, Harmon and 5 more	97 min
Jun 23, 6:14 AM CDT	Mesoscale Discussion	SPC	Collin, Cooke, Dallas, Denton, Eastland, Fisher and 14 more	61 min

Nearby

Mesoscale Discussions in Texas, 2014 Mesoscale Discussions in Oklahoma, 2014 Mesoscale Discussions in Kansas, 2014 Every mesoscale discussion 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.