Alert archive / Texas / Mesoscale Discussions in 2013

Mesoscale Discussion 293

March 23, 201321 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 23, 2013, 3:39 AM CDT for 21 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 23, 2013, 3:39 AM CDT (08:39 UTC)
Expired
Mar 23, 2013, 5:45 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 21 counties

Callahan County, TX, Coke County, TX, Coleman County, TX, Eastland County, TX, Fisher County, TX, Glasscock County, TX, Haskell County, TX, Jack County, TX, Jones County, TX, Mitchell County, TX, Nolan County, TX, Palo Pinto County, TX, Parker County, TX, Runnels County, TX, Shackelford County, TX, Stephens County, TX, Sterling County, TX, Taylor County, TX, Throckmorton County, TX, Wise County, TX, Young County, TX

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 8.7 hours before the alert went out and 354 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, Amarillo Airport, TX at 00:00Z on 2013-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Amarillo Airport, TX at 00:00Z on 2013-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 165 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1821 m above ground
0-6 km bulk shear
87 kt
0-1 km storm-relative helicity
165 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Mar 23, 8:49 AM CDTMesoscale DiscussionSPCCamp, Cass, Gregg, Harrison, Henderson, Kaufman and 9 more56 min
Mar 23, 10:32 AM CDTMesoscale DiscussionSPCAngelina, Cherokee, Gregg, Harrison, Nacogdoches, Panola and 4 more58 min
Mar 23, 2:09 PM CDTMesoscale DiscussionSPCGregg, Harrison, Marion, Nacogdoches, Panola, Rusk and 3 more96 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.