Alert archive / Texas / Mesoscale Discussions in 2014

Mesoscale Discussion 917

June 9, 2014Roosevelt County, New Mexico; 5 counties in Oklahoma; 59 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2014, 1:28 AM MDT for Roosevelt County, New Mexico; 5 counties in Oklahoma; 59 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 9, 2014, 1:28 AM MDT (07:28 UTC)
Expired
Jun 9, 2014, 3:30 AM MDT
In force
2 hr
Issued by
the Storm Prediction Center
All 65 counties

Roosevelt County, NM, Carter County, OK, Jefferson County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Andrews County, TX, Archer County, TX, Bailey County, TX, Baylor County, TX, Borden County, TX, Brown County, TX, Callahan County, TX, Clay County, TX, Cochran County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Cooke County, TX, Crosby County, TX, Dawson County, TX, Denton County, TX, Dickens County, TX, Eastland County, TX, Erath County, TX, Fisher County, TX, Gaines County, TX, Garza County, TX, Glasscock County, TX, Grayson County, TX, Hale County, TX, Haskell County, TX, Hockley County, TX, Hood County, TX, Howard County, TX, Jack County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Montague County, TX, Nolan County, TX, Palo Pinto County, TX, Parker County, TX, Runnels County, TX, Scurry County, TX, Shackelford County, TX, Somervell County, TX, Stephens County, TX, Sterling County, TX, Stonewall County, TX, Tarrant County, TX, Taylor County, TX, Terry County, TX, Throckmorton County, TX, Wichita County, TX, Wise County, TX, Yoakum County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 137 km from the middle of the area, began a volume at 07:30 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 7.5 hours before the alert went out and 238 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 2014-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 919 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 2014-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 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
919 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
914 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
264 m²/s²
Significant tornado parameter
0.7
Supercell composite
5.6

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.

IssuedProductOfficeCountiesLasted
Jun 8, 6:24 PM MDTMesoscale DiscussionSPCChaves, Curry, De Baca, Eddy, Guadalupe, Harding and 3 more96 min
Jun 8, 10:19 PM MDTMesoscale DiscussionSPCCurry, Quay86 min
Jun 8, 8:06 PM MDTSevere Thunderstorm WatchSPCBeaver, Texas7 hr
Jun 9, 1:32 PM MDTMesoscale DiscussionSPCCherokee, Craig, Delaware, Mayes, Muskogee, Nowata and 4 more118 min
Jun 8, 6:47 PM MDTMesoscale DiscussionSPCBowie, Cass, Harrison, Marion, Panola, Sabine and 2 more88 min
Jun 8, 7:41 PM MDTSevere Thunderstorm WatchSPCBowie, Cass, Harrison, Marion7 hr
Jun 8, 8:56 PM MDTMesoscale DiscussionSPCCrane, Loving, Pecos, Reeves, Ward, Winkler94 min
Jun 8, 9:53 PM MDTMesoscale DiscussionSPCCass97 min
Jun 9, 11:07 AM MDTMesoscale DiscussionSPCAustin, Brazoria, Chambers, Colorado, DeWitt, Fayette and 23 more2 hr
Jun 9, 2:37 PM MDTMesoscale DiscussionSPCAtascosa, Bee, Bexar, Dimmit, Duval, Frio and 12 more2 hr
Jun 9, 4:53 PM MDTMesoscale DiscussionSPCAtascosa, Austin, Bastrop, Bexar, Burleson, Caldwell and 17 more2 hr

Nearby

Mesoscale Discussions in Texas, 2014Mesoscale Discussions in Oklahoma, 2014Mesoscale Discussions in New Mexico, 2014Every 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.