Alert archive / Louisiana / Mesoscale Discussions in 2004

Mesoscale Discussion 1041

June 1, 20045 states

The Storm Prediction Center issued this mesoscale discussion at Jun 1, 2004, 4:27 PM CDT for 5 states. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: Jun 1, 2004, 4:27 PM CDT (21:27 UTC)
Expired: Jun 1, 2004, 6:00 PM CDT
In force: 93 min
Issued by: the Storm Prediction Center

All 47 counties

Baldwin County, AL, Barbour County, AL, Dale County, AL, Geneva County, AL, Houston County, AL, Mobile County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Glynn County, GA, Wayne County, GA, Acadia Parish, LA, Ascension Parish, LA, Assumption Parish, LA, Cameron Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville Parish, LA, Lafayette Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Pointe Coupee 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, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Hancock County, MS, Harrison County, MS, Jackson County, MS, Pearl River County, MS, Stone County, MS

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 9.5 hours before the alert went out and 137 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 613 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 846 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 161 m²/s²
0-3 km storm-relative helicity: 233 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.4

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.

Issued	Product	Office	Counties	Lasted
Jun 1, 6:42 AM CDT	Mesoscale Discussion	SPC	Autauga, Barbour, Bullock, Butler, Chilton, Choctaw and 26 more	2 hr
Jun 1, 9:26 AM CDT	Mesoscale Discussion	SPC	Baldwin, Coffee, Conecuh, Covington, Dale, Escambia and 4 more	64 min
Jun 1, 9:50 AM CDT	Severe Thunderstorm Watch	SPC	Baldwin, Butler, Clarke, Coffee, Conecuh, Covington and 10 more	7 hr
Jun 1, 11:07 AM CDT	Mesoscale Discussion	SPC	Baldwin, Butler, Clarke, Coffee, Conecuh, Covington and 9 more	83 min
Jun 1, 1:50 PM CDT	Severe Thunderstorm Watch	SPC	Alachua, Baker, Bradford, Clay, Columbia, Dixie and 11 more	5 hr
May 31, 7:09 PM CDT	Mesoscale Discussion	SPC	Acadia, Allen, Assumption, Beauregard, Calcasieu, Cameron and 14 more	2 hr
Jun 1, 1:35 AM CDT	Severe Thunderstorm Watch	SPC	Bienville, Bossier, Caddo, Claiborne, De Soto, Red River and 2 more	5 hr
Jun 1, 3:41 AM CDT	Mesoscale Discussion	SPC	Bienville, Bossier, Caddo, Claiborne, De Soto, Red River and 2 more	94 min

Nearby

Mesoscale Discussions in Louisiana, 2004 Mesoscale Discussions in Florida, 2004 Mesoscale Discussions in Alabama, 2004 Every mesoscale discussion in 2004

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.