Alert archive / Texas / Mesoscale Discussions in 2013

Mesoscale Discussion 372

April 2, 201347 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 2, 2013, 5:03 PM CDT for 47 counties in Texas. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued
Apr 2, 2013, 5:03 PM CDT (22:03 UTC)
Expired
Apr 2, 2013, 6:30 PM CDT
In force
87 min
Issued by
the Storm Prediction Center
All 47 counties

Bandera County, TX, Bastrop County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Brewster County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Concho County, TX, Coryell County, TX, Crane County, TX, Crockett County, TX, Edwards County, TX, Falls County, TX, Gillespie County, TX, Guadalupe County, TX, Hamilton County, TX, Hays County, TX, Irion County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Lampasas County, TX, Limestone County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, McLennan County, TX, Medina County, TX, Menard County, TX, Milam County, TX, Mills County, TX, Pecos County, TX, Reagan County, TX, Real County, TX, San Saba County, TX, Schleicher County, TX, Sutton County, TX, Terrell County, TX, Tom Green County, TX, Travis County, TX, Upton County, TX, Uvalde County, TX, Val Verde County, TX, Williamson County, TX

The radar

The San Angelo radar (KSJT), 67 km from the middle of the area, began a volume at 22:02 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

Del Rio, TX (KDRT), launched 12:00Z, 10.1 hours before the alert went out and 158 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, Del Rio, TX at 12:00Z on 2013-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1695 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, Del Rio, TX at 12:00Z on 2013-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.193958Sfc1 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
1695 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
523 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
206 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.3

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.

IssuedProductOfficeCountiesLasted
Apr 1, 7:39 PM CDTMesoscale DiscussionSPCBaylor, Callahan, Haskell, Jones, King, Knox and 5 more66 min
Apr 1, 11:52 PM CDTMesoscale DiscussionSPCBell, Bosque, Brown, Callahan, Coke, Coleman and 27 more53 min
Apr 2, 3:20 AM CDTMesoscale DiscussionSPCBell, Bosque, Burleson, Coryell, Falls, Hamilton and 6 more115 min
Apr 2, 1:42 PM CDTMesoscale DiscussionSPCBrewster, Concho, Crockett, Edwards, Irion, Jeff Davis and 11 more93 min
Apr 2, 1:59 PM CDTMesoscale DiscussionSPCBandera, Bastrop, Bell, Blanco, Bosque, Burleson and 25 more61 min
Apr 2, 2:35 PM CDTSevere Thunderstorm WatchSPCAtascosa, Bandera, Bastrop, Bell, Bexar, Blanco and 56 more8 hr
Apr 2, 3:38 PM CDTMesoscale DiscussionSPCAustin, Brazoria, Brazos, Burleson, Colorado, Fort Bend and 7 more67 min
Apr 2, 3:54 PM CDTSevere Thunderstorm WatchSPCAustin, Brazoria, Brazos, Burleson, Chambers, Colorado and 14 more7 hr
Apr 2, 5:41 PM CDTMesoscale DiscussionSPCAustin, Brazoria, Burleson, Colorado, Fayette, Fort Bend and 9 more94 min
Apr 2, 6:33 PM CDTMesoscale DiscussionSPCArcher, Baylor, Callahan, Eastland, Fisher, Haskell and 12 more117 min

Nearby

Mesoscale Discussions in Texas, 2013Every 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.