Alert archive / Texas / Mesoscale Discussions in 2016

Mesoscale Discussion 188

March 8, 201613 counties in Arkansas; 24 parishes in Louisiana; 30 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 8, 2016, 3:11 PM CST for 13 counties in Arkansas; 24 parishes in Louisiana; 30 counties in Texas. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued
Mar 8, 2016, 3:11 PM CST (21:11 UTC)
Expired
Mar 8, 2016, 4:45 PM CST
In force
94 min
Issued by
the Storm Prediction Center
All 67 counties

Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Grant County, AR, Hempstead County, AR, Lafayette County, AR, Miller County, AR, Nevada County, AR, Ouachita County, AR, Union County, AR, Allen Parish, LA, Beauregard Parish, LA, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Calcasieu Parish, LA, Caldwell Parish, LA, Cameron Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Grant Parish, LA, Jackson Parish, LA, Jefferson Davis Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Vernon Parish, LA, Webster Parish, LA, Winn Parish, LA, Anderson County, TX, Angelina County, TX, Bowie County, TX, Cass County, TX, Chambers County, TX, Cherokee County, TX, Galveston County, TX, Gregg County, TX, Hardin County, TX, Harrison County, TX, Houston County, TX, Jasper County, TX, Jefferson County, TX, Liberty County, TX, Marion County, TX, Morris County, TX, Nacogdoches County, TX, Newton County, TX, Orange County, TX, Panola County, TX, Polk County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Smith County, TX, Trinity County, TX, Tyler County, TX, Upshur County, TX

The radar

The Shreveport radar (KSHV), 79 km from the middle of the area, began a volume at 21:13 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

Shreveport, LA (KBAD), launched 12:00Z, 9.2 hours before the alert went out and 82 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, Shreveport, LA at 12:00Z on 2016-03-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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, Shreveport, LA at 12:00Z on 2016-03-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 square meters per square second.19395878Sfc1 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
7 J/kg
Mixed-layer CIN
-109 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
415 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
Mar 8, 12:41 PM CSTTornado WatchSPCColumbia, Hempstead, Howard, Lafayette, Little River, Miller and 3 more5 hr
Mar 8, 5:52 PM CSTMesoscale DiscussionSPCUnion83 min
Mar 7, 6:42 PM CSTMesoscale DiscussionSPCBosque, Comanche, Cooke, Dallas, Denton, Ellis and 10 more63 min
Mar 7, 11:41 PM CSTMesoscale DiscussionSPCBorden, Coke, Concho, Crane, Crockett, Dawson and 27 more2 hr
Mar 8, 1:18 AM CSTSevere Thunderstorm WatchSPCBosque, Brown, Callahan, Coke, Coleman, Collin and 48 more10 hr
Mar 8, 3:36 AM CSTMesoscale DiscussionSPCArcher, Baylor, Childress, Clay, Cottle, Dickens and 6 more84 min
Mar 8, 3:57 AM CSTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Clay, Coleman and 36 more2 hr
Mar 8, 7:06 AM CSTMesoscale DiscussionSPCAnderson, Austin, Bastrop, Bell, Blanco, Bosque and 64 more2 hr
Mar 8, 7:24 AM CSTTornado WatchSPCAnderson, Bastrop, Bell, Blanco, Brazos, Burleson and 29 more8 hr
Mar 8, 9:00 AM CSTMesoscale DiscussionSPCAnderson, Bastrop, Bell, Bosque, Burleson, Burnet and 35 more90 min
Mar 8, 10:46 AM CSTMesoscale DiscussionSPCAngelina, Cherokee, Hardin, Houston, Jasper, Liberty and 12 more89 min
Mar 8, 1:10 PM CSTMesoscale DiscussionSPCBell, Blanco, Bosque, Brown, Burnet, Coke and 32 more95 min

Nearby

Mesoscale Discussions in Texas, 2016Mesoscale Discussions in Louisiana, 2016Mesoscale Discussions in Arkansas, 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.