Alert archive / Louisiana / Mesoscale Discussions in 2006

Mesoscale Discussion 792

May 8, 20065 states

The Storm Prediction Center issued this mesoscale discussion at May 8, 2006, 12:01 PM CDT for 5 states. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued
May 8, 2006, 12:01 PM CDT (17:01 UTC)
Expired
May 8, 2006, 2:00 PM CDT
In force
119 min
Issued by
the Storm Prediction Center
All 65 counties

Baldwin County, AL, Covington County, AL, Escambia County, AL, Geneva County, AL, Mobile County, AL, Washington County, AL, Escambia County, FL, Holmes County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Acadia Parish, LA, Allen Parish, LA, Ascension Parish, LA, Assumption Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Evangeline Parish, LA, Iberville Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Pointe Coupee Parish, LA, Rapides Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Vermilion Parish, LA, Vernon Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, Forrest County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Lamar County, MS, Marion County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Stone County, MS, Walthall County, MS, Wilkinson County, MS, Hardin County, TX, Jasper County, TX, Jefferson County, TX, Newton County, TX, Orange County, TX, Tyler County, TX

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 5.0 hours before the alert went out and 41 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, Slidell Radar S, LA at 12:00Z on 2006-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 389 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, Slidell Radar S, LA at 12:00Z on 2006-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 140 square meters per square second.1939587897Sfc1 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
389 J/kg
Mixed-layer CIN
-153 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
140 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

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
May 8, 10:43 AM CDTMesoscale DiscussionSPCBaker, Calhoun, Columbia, Duval, Gadsden, Hamilton and 11 more2 hr
May 8, 4:42 PM CDTMesoscale DiscussionSPCAvoyelles, Bienville, Caldwell, Catahoula, Claiborne, Concordia and 18 more93 min
May 8, 5:02 PM CDTSevere Thunderstorm WatchSPCBienville, Bossier, Caddo, Caldwell, Catahoula, Claiborne and 20 more6 hr
May 7, 7:53 PM CDTMesoscale DiscussionSPCAndrews, Borden, Coke, Crane, Crockett, Dawson and 20 more97 min
May 7, 8:01 PM CDTSevere Thunderstorm WatchSPCArmstrong, Carson, Collingsworth, Donley, Gray, Hansford and 6 more5 hr
May 7, 9:15 PM CDTMesoscale DiscussionSPCArmstrong, Carson, Collingsworth, Donley, Gray, Hansford and 10 more60 min
May 7, 11:20 PM CDTMesoscale DiscussionSPCBell, Blanco, Bosque, Burnet, Coryell, Falls and 18 more55 min
May 7, 11:51 PM CDTMesoscale DiscussionSPCChildress, Collingsworth, Donley, Gray, Hall, Wheeler54 min
May 8, 10:12 AM CDTMesoscale DiscussionSPCClay, Collin, Cooke, Delta, Denton, Fannin and 6 more2 hr
May 8, 5:10 PM CDTMesoscale DiscussionSPCBrooks, Dimmit, Duval, Frio, Jim Hogg, Kinney and 7 more65 min

Nearby

Mesoscale Discussions in Louisiana, 2006Mesoscale Discussions in Mississippi, 2006Mesoscale Discussions in Alabama, 2006Every mesoscale discussion in 2006

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.