Alert archive / Texas / Mesoscale Discussions in 2016

Mesoscale Discussion 350

April 10, 20169 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 10, 2016, 5:08 PM CDT for 9 counties in Texas. It was in force for 67 min.

The area

The outline as issued.

The facts

Issued: Apr 10, 2016, 5:08 PM CDT (22:08 UTC)
Expired: Apr 10, 2016, 6:15 PM CDT
In force: 67 min
Issued by: the Storm Prediction Center
Chance of a watch: 80%

Counties Dimmit County, TX, Edwards County, TX, Kinney County, TX, Maverick County, TX, Real County, TX, Terrell County, TX, Uvalde County, TX, Val Verde County, TX, Zavala County, TX

The radar

The Laughlin AFB radar (KDFX), 27 km from the middle of the area, began a volume at 22:09 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.

Severe Thunderstorm Watch 81Apr 10, 6:10 PM CDT

The nearest sounding before it

Del Rio, TX (KDLF), launched 12:00Z, 10.1 hours before the alert went out and 29 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: 272 J/kg
Mixed-layer CIN: -380 J/kg
Mixed-layer LCL: 550 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 207 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.

Issued	Product	Office	Counties	Lasted
Apr 10, 2:56 PM CDT	Mesoscale Discussion	SPC	Bailey, Borden, Briscoe, Castro, Childress, Cochran and 22 more	2 hr
Apr 10, 3:31 PM CDT	Severe Thunderstorm Watch	SPC	Armstrong, Bailey, Baylor, Borden, Briscoe, Carson and 36 more	6 hr
Apr 10, 4:57 PM CDT	Mesoscale Discussion	SPC	Baylor, Hardeman, Wichita, Wilbarger	2 hr
Apr 10, 5:13 PM CDT	Severe Thunderstorm Watch	SPC	Archer, Clay, Wichita	5 hr
Apr 10, 6:15 PM CDT	Severe Thunderstorm Watch	SPC	Bandera, Dimmit, Edwards, Frio, Kerr, Kinney and 8 more	5 hr
Apr 10, 6:57 PM CDT	Mesoscale Discussion	SPC	Bailey, Baylor, Briscoe, Castro, Childress, Cochran and 29 more	93 min

Nearby

Mesoscale Discussions in Texas, 2016 Every 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.