Alert archive / Mississippi / Mesoscale Discussions in 2024

Mesoscale Discussion 413

April 10, 20244 states

The Storm Prediction Center issued this mesoscale discussion at Apr 10, 2024, 9:01 AM CDT for 4 states. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued: Apr 10, 2024, 9:01 AM CDT (14:01 UTC)
Expired: Apr 10, 2024, 10:30 AM CDT
In force: 89 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 101

All 59 counties

Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Ascension Parish, LA, Assumption Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville 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 Martin Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, Clarke County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Jasper County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Stone County, MS, Walthall County, MS, Wayne County, MS, Wilkinson County, MS

The radar

The Mobile radar (KMOB), 60 km from the middle of the area, began a volume at 14:03 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Tornado Watch 102Apr 10, 9:55 AM CDT

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 2.0 hours before the alert went out and 93 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: 1088 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 479 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 220 m²/s²
0-3 km storm-relative helicity: 327 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.0

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.

Issued	Product	Office	Counties	Lasted
Apr 10, 9:57 AM CDT	Tornado Watch	SPC	Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 10 more	6 hr
Apr 10, 11:01 AM CDT	Mesoscale Discussion	SPC	Baldwin, Choctaw, Clarke, Conecuh, Escambia, Marengo and 4 more	89 min
Apr 10, 12:35 PM CDT	Mesoscale Discussion	SPC	Barbour, Coffee, Dale, Geneva, Henry, Houston and 1 more	85 min
Apr 10, 1:12 PM CDT	Tornado Watch	SPC	Barbour, Coffee, Dale, Geneva, Henry, Houston and 1 more	7 hr
Apr 10, 3:32 PM CDT	Mesoscale Discussion	SPC	Barbour, Coffee, Dale, Geneva, Henry, Houston	88 min
Apr 10, 6:35 PM CDT	Mesoscale Discussion	SPC	Bay, Gulf, Okaloosa, Walton	115 min
Apr 9, 7:32 PM CDT	Mesoscale Discussion	SPC	Allen, Beauregard, Calcasieu, Vernon	88 min
Apr 9, 7:49 PM CDT	Mesoscale Discussion	SPC	Tensas	86 min
Apr 10, 3:21 AM CDT	Mesoscale Discussion	SPC	Acadia, Allen, Beauregard, Calcasieu, Cameron, Evangeline and 2 more	114 min
Apr 10, 3:47 AM CDT	Tornado Watch	SPC	Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 10 more	5 hr
Apr 10, 5:35 AM CDT	Mesoscale Discussion	SPC	Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 26 more	115 min
Apr 10, 6:06 AM CDT	Tornado Watch	SPC	Ascension, Assumption, Concordia, East Baton Rouge, East Feliciana, Iberville and 17 more	9 hr
Apr 10, 7:16 AM CDT	Mesoscale Discussion	SPC	Acadia, Allen, Ascension, Assumption, Avoyelles, Cameron and 22 more	89 min
Apr 10, 5:01 AM CDT	Mesoscale Discussion	SPC	Attala, Choctaw, Copiah, Covington, Franklin, Jefferson Davis and 14 more	119 min

Nearby

Mesoscale Discussions in Mississippi, 2024 Mesoscale Discussions in Louisiana, 2024 Mesoscale Discussions in Alabama, 2024 Every mesoscale discussion in 2024

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.