Alert archive / Texas / Mesoscale Discussions in 2013

Mesoscale Discussion 788

May 23, 201319 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 23, 2013, 7:35 PM CDT for 19 counties in Texas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: May 23, 2013, 7:35 PM CDT (00:35 UTC)
Expired: May 23, 2013, 9:00 PM CDT
In force: 85 min
Issued by: the Storm Prediction Center

Counties Coke County, TX, Crane County, TX, Crockett County, TX, Ector County, TX, Glasscock County, TX, Howard County, TX, Irion County, TX, Martin County, TX, Midland County, TX, Pecos County, TX, Reagan County, TX, Schleicher County, TX, Sterling County, TX, Terrell County, TX, Tom Green County, TX, Upton County, TX, Val Verde County, TX, Ward County, TX, Winkler County, TX

The radar

The Midland/Odessa radar (KMAF), 95 km from the middle of the area, began a volume at 00:38 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, 0.6 hours before the alert went out and 96 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: 2419 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 1953 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 68 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

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
May 23, 9:53 PM CDT	Mesoscale Discussion	SPC	Concho, Crockett, Irion, McCulloch, Menard, Midland and 6 more	67 min
May 23, 11:16 PM CDT	Mesoscale Discussion	SPC	Deaf Smith, Oldham, Parmer	89 min
May 24, 12:42 PM CDT	Mesoscale Discussion	SPC	Atascosa, Bastrop, Bee, Bexar, Caldwell, Colorado and 17 more	2 hr

Nearby

Mesoscale Discussions in Texas, 2013 Every mesoscale discussion in 2013

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.