Alert archive / Texas / Mesoscale Discussions in 2019

Mesoscale Discussion 314

April 13, 201932 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 13, 2019, 4:35 AM CDT for 32 counties in Texas. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued
Apr 13, 2019, 4:35 AM CDT (09:35 UTC)
Expired
Apr 13, 2019, 5:30 AM CDT
In force
55 min
Issued by
the Storm Prediction Center
All 32 counties

Bosque County, TX, Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Eastland County, TX, Erath County, TX, Fisher County, TX, Glasscock County, TX, Hamilton County, TX, Hood County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Martin County, TX, McCulloch County, TX, Mills County, TX, Mitchell County, TX, Nolan County, TX, Palo Pinto County, TX, Parker County, TX, Reagan County, TX, Runnels County, TX, Scurry County, TX, Shackelford County, TX, Somervell County, TX, Stephens County, TX, Sterling County, TX, Taylor County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 80 km from the middle of the area, began a volume at 09:35 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

Midland Regional, TX (KMAF), launched 00:00Z, 9.6 hours before the alert went out and 185 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, Midland Regional, TX at 00:00Z on 2019-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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, Midland Regional, TX at 00:00Z on 2019-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.1939587897117Sfc1 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
4 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
3570 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 10:14 PM CDTMesoscale DiscussionSPCChambers, Hardin, Harris, Jasper, Liberty, Montgomery and 5 more3 hr
Apr 12, 11:40 PM CDTMesoscale DiscussionSPCCoke, Crane, Crockett, Ector, Glasscock, Howard and 13 more2 hr
Apr 13, 12:56 AM CDTMesoscale DiscussionSPCBandera, Crockett, Edwards, Kerr, Kimble, Kinney and 7 more2 hr
Apr 13, 1:32 AM CDTSevere Thunderstorm WatchSPCBrown, Callahan, Coke, Coleman, Concho, Crane and 21 more8 hr
Apr 13, 1:50 AM CDTTornado WatchSPCBandera, Crockett, Edwards, Frio, Gillespie, Kendall and 13 more8 hr
Apr 13, 1:52 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Camp, Cass, Cherokee, Franklin and 25 more113 min
Apr 13, 4:50 AM CDTMesoscale DiscussionSPCBandera, Crockett, Edwards, Frio, Gillespie, Kendall and 13 more55 min
Apr 13, 6:48 AM CDTMesoscale DiscussionSPCBell, Bosque, Brown, Callahan, Coleman, Comanche and 27 more57 min
Apr 13, 7:11 AM CDTMesoscale DiscussionSPCBandera, Bastrop, Bell, Bexar, Blanco, Burleson and 28 more2 hr
Apr 13, 7:55 AM CDTSevere Thunderstorm WatchSPCAnderson, Bell, Bosque, Comanche, Coryell, Dallas and 27 more6 hr
Apr 13, 8:38 AM CDTSevere Thunderstorm WatchSPCAtascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 22 more5 hr
Apr 13, 9:40 AM CDTMesoscale DiscussionSPCBastrop, Bell, Bexar, Blanco, Brazos, Burleson and 19 more95 min
Apr 13, 9:49 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Cherokee, Freestone, Gregg, Harrison and 12 more56 min
Apr 13, 10:01 AM CDTSevere Thunderstorm WatchSPCAngelina, Austin, Brazos, Burleson, Camp, Cass and 21 more5 hr
Apr 13, 11:11 AM CDTMesoscale DiscussionSPCBrazos, Grimes, Hardin, Harris, Jasper, Liberty and 10 more34 min
Apr 13, 11:26 AM CDTTornado WatchSPCAngelina, Brazos, Cherokee, Grimes, Hardin, Harrison and 18 more8 hr
Apr 13, 11:52 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Brazos, Cherokee, Freestone, Grimes and 12 more83 min
Apr 13, 1:38 PM CDTMesoscale DiscussionSPCAngelina, Jasper, Nacogdoches, Newton, Sabine, San Augustine and 1 more97 min
Apr 13, 3:39 PM CDTMesoscale DiscussionSPCJefferson, Orange96 min

Nearby

Mesoscale Discussions in Texas, 2019Every mesoscale discussion in 2019

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.