Alert archive / Texas / Mesoscale Discussions in 2016

Mesoscale Discussion 1283

July 14, 201630 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jul 14, 2016, 8:43 PM CDT for 30 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jul 14, 2016, 8:43 PM CDT (01:43 UTC)
Expired
Jul 14, 2016, 10:45 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 30 counties

Baylor County, TX, Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Eastland County, TX, Fisher County, TX, Glasscock County, TX, Haskell County, TX, Irion County, TX, Jones County, TX, King County, TX, Knox County, TX, McCulloch County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Palo Pinto County, TX, Reagan County, TX, Runnels County, TX, Shackelford County, TX, Stephens County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 89 km from the middle of the area, began a volume at 01:45 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

Midland Regional, TX (KMAF), launched 00:00Z, 1.7 hours before the alert went out and 197 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 2016-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1021 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 2016-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 square meters per square second.1939Sfc1 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
1021 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
3287 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
45 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
Jul 14, 10:00 PM CDTMesoscale DiscussionSPCArmstrong, Briscoe, Carson, Childress, Clay, Collingsworth and 10 more2 hr
Jul 15, 7:38 AM CDTMesoscale DiscussionSPCCollin, Dallas, Denton, Hunt, Kaufman, Rains and 4 more2 hr
Jul 15, 3:01 PM CDTMesoscale DiscussionSPCArmstrong, Bailey, Carson, Castro, Dallam, Deaf Smith and 12 more89 min
Jul 15, 5:16 PM CDTMesoscale DiscussionSPCCollingsworth, Gray, Hansford, Hemphill, Hutchinson, Lipscomb and 3 more119 min
Jul 15, 6:46 PM CDTSevere Thunderstorm WatchSPCArmstrong, Bailey, Briscoe, Carson, Castro, Childress and 23 more6 hr

Nearby

Mesoscale Discussions in Texas, 2016Every mesoscale discussion in 2016

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.