Alert archive / Mississippi / Mesoscale Discussions in 2005

Mesoscale Discussion 1059

May 29, 20055 states

The Storm Prediction Center issued this mesoscale discussion at May 29, 2005, 6:20 PM CDT for 5 states. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
May 29, 2005, 6:20 PM CDT (23:20 UTC)
Expired
May 29, 2005, 7:45 PM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 83 counties

Mobile County, AL, Washington County, AL, Chicot County, AR, Desha County, AR, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Baton Rouge Parish, LA, East Carroll Parish, LA, East Feliciana Parish, LA, Evangeline Parish, LA, Grant Parish, LA, LaSalle Parish, LA, Livingston Parish, LA, Madison Parish, LA, Natchitoches Parish, LA, Pointe Coupee Parish, LA, Rapides Parish, LA, Sabine Parish, LA, Saint Helena Parish, LA, Saint Landry Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Vernon Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Carroll Parish, LA, West Feliciana Parish, LA, Adams County, MS, Amite County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, George County, MS, Greene County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jackson County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Marion County, MS, Newton County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Walthall County, MS, Warren County, MS, Washington County, MS, Wayne County, MS, Wilkinson County, MS, Yazoo County, MS, Angelina County, TX, Hardin County, TX, Jasper County, TX, Nacogdoches County, TX, Newton County, TX, Polk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Trinity County, TX, Tyler County, TX

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 11.3 hours before the alert went out and 179 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, Lake Charles Mun, LA at 12:00Z on 2005-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1642 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, Lake Charles Mun, LA at 12:00Z on 2005-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.1939Sfc1 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
1642 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
792 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.5

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 29, 12:40 PM CDTSevere Thunderstorm WatchSPCMobile, Washington7 hr
May 29, 2:34 PM CDTMesoscale DiscussionSPCButler, Choctaw, Clarke, Conecuh, Dallas, Escambia and 8 more56 min
May 28, 10:25 PM CDTMesoscale DiscussionSPCGrant, Natchitoches, Rapides, Red River, Sabine, Vernon and 1 more95 min
May 29, 7:38 AM CDTMesoscale DiscussionSPCAcadia, Allen, Ascension, Assumption, Avoyelles, Cameron and 23 more2 hr
May 29, 8:00 AM CDTSevere Thunderstorm WatchSPCAcadia, Ascension, Assumption, Avoyelles, East Baton Rouge, East Feliciana and 22 more8 hr
May 29, 10:48 AM CDTMesoscale DiscussionSPCAscension, Catahoula, Concordia, East Baton Rouge, East Feliciana, Livingston and 12 more87 min
May 29, 4:45 PM CDTSevere Thunderstorm WatchSPCAllen, Avoyelles, Beauregard, Catahoula, Concordia, East Baton Rouge and 17 more7 hr
May 28, 7:05 PM CDTSevere Thunderstorm WatchSPCAnderson, Bell, Burnet, Cherokee, Concho, Coryell and 19 more5 hr
May 28, 8:19 PM CDTMesoscale DiscussionSPCAtascosa, Bandera, Bexar, Dimmit, Frio, Kendall and 7 more86 min
May 28, 8:25 PM CDTSevere Thunderstorm WatchSPCAtascosa, Bandera, Bexar, Blanco, Comal, Dimmit and 10 more4 hr
May 28, 10:08 PM CDTMesoscale DiscussionSPCAtascosa, Bell, Bexar, Blanco, Burnet, Caldwell and 11 more97 min
May 28, 11:40 PM CDTSevere Thunderstorm WatchSPCAtascosa, Bastrop, Bee, Bexar, Blanco, Caldwell and 15 more5 hr
May 29, 12:57 AM CDTMesoscale DiscussionSPCAransas, Atascosa, Austin, Bastrop, Bee, Bexar and 46 more93 min
May 29, 1:20 AM CDTSevere Thunderstorm WatchSPCAustin, Brazoria, Calhoun, Chambers, Colorado, Fort Bend and 10 more4 hr
May 29, 4:12 AM CDTMesoscale DiscussionSPCAustin, Brazoria, Calhoun, Chambers, Colorado, Fort Bend and 10 more2 hr
May 29, 11:47 AM CDTMesoscale DiscussionSPCAransas, Bee, Brazoria, Calhoun, Colorado, DeWitt and 13 more58 min
May 29, 12:56 PM CDTMesoscale DiscussionSPCDallam, Deaf Smith, Hartley, Oldham2 hr
May 29, 1:42 PM CDTMesoscale DiscussionSPCAransas, Bee, Brazoria, Calhoun, Colorado, DeWitt and 13 more93 min
May 29, 2:20 PM CDTTornado WatchSPCAtascosa, Austin, Bastrop, Bee, Bexar, Brazoria and 41 more9 hr
May 29, 3:48 PM CDTMesoscale DiscussionSPCBell, Bosque, Burnet, Comanche, Coryell, Ellis and 18 more87 min
May 29, 4:40 PM CDTMesoscale DiscussionSPCBell, Blanco, Bosque, Burnet, Comanche, Coryell and 20 more95 min
May 29, 5:05 PM CDTSevere Thunderstorm WatchSPCAnderson, Bell, Blanco, Burnet, Coryell, Falls and 9 more6 hr
May 29, 5:30 PM CDTSevere Thunderstorm WatchSPCBrooks, Duval, Hidalgo, Jim Hogg, Jim Wells, Kenedy and 5 more7 hr
May 29, 6:42 PM CDTMesoscale DiscussionSPCAtascosa, Austin, Bastrop, Bee, Bexar, Brazoria and 39 more93 min

Nearby

Mesoscale Discussions in Mississippi, 2005Mesoscale Discussions in Louisiana, 2005Mesoscale Discussions in Texas, 2005Every mesoscale discussion in 2005

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.