Alert archive / Tennessee / Mesoscale Discussions in 2024

Mesoscale Discussion 352

April 2, 20245 states

The Storm Prediction Center issued this mesoscale discussion at Apr 2, 2024, 2:49 PM CDT for 5 states. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued
Apr 2, 2024, 2:49 PM CDT (19:49 UTC)
Expired
Apr 2, 2024, 4:45 PM CDT
In force
116 min
Issued by
the Storm Prediction Center
Concerning
Tornado watch 75...77
All 102 counties

Colbert County, AL, Franklin County, AL, Lauderdale County, AL, Limestone County, AL, Adair County, KY, Allen County, KY, Barren County, KY, Bell County, KY, Breathitt County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Floyd County, KY, Harlan County, KY, Jackson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Magoffin County, KY, McCreary County, KY, Metcalfe County, KY, Monroe County, KY, Owsley County, KY, Perry County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Pontotoc County, MS, Prentiss County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Anderson County, TN, Bedford County, TN, Benton County, TN, Bledsoe County, TN, Campbell County, TN, Cannon County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Claiborne County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, Davidson County, TN, Decatur County, TN, DeKalb County, TN, Dickson County, TN, Fentress County, TN, Franklin County, TN, Giles County, TN, Grundy County, TN, Hancock County, TN, Hardeman County, TN, Hardin County, TN, Henderson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Moore County, TN, Morgan County, TN, Overton County, TN, Perry County, TN, Pickett County, TN, Putnam County, TN, Roane County, TN, Robertson County, TN, Rutherford County, TN, Scott County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, White County, TN, Williamson County, TN, Wilson County, TN, Lee County, VA

The radar

The Nashville radar (KOHX), 51 km from the middle of the area, began a volume at 19:49 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.8 hours before the alert went out and 47 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, Nashville Metro, TN at 12:00Z on 2024-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 241 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, Nashville Metro, TN at 12:00Z on 2024-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
241 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
839 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
13 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
Apr 2, 3:08 PM CDTTornado WatchSPCColbert, Franklin, Lauderdale, Lawrence, Limestone, Madison and 1 more6 hr
Apr 2, 5:53 PM CDTMesoscale DiscussionSPCAutauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 29 more3 hr
Apr 2, 6:57 PM CDTTornado WatchSPCAutauga, Barbour, Bibb, Blount, Bullock, Butler and 47 more8 hr
Apr 1, 7:37 PM CDTMesoscale DiscussionSPCBoone, Bracken, Campbell, Carroll, Gallatin, Grant and 3 more83 min
Apr 2, 1:16 AM CDTMesoscale DiscussionSPCDaviess, Henderson, Union, Webster89 min
Apr 2, 2:00 AM CDTTornado WatchSPCBallard, Caldwell, Crittenden, Daviess, Henderson, Hopkins and 8 more5 hr
Apr 2, 3:10 AM CDTMesoscale DiscussionSPCBoone, Campbell, Gallatin, Kenton95 min
Apr 2, 4:55 AM CDTMesoscale DiscussionSPCAnderson, Boone, Bourbon, Bracken, Breckinridge, Bullitt and 25 more95 min
Apr 2, 5:55 AM CDTTornado WatchSPCAnderson, Bath, Bourbon, Boyle, Bracken, Breckinridge and 51 more4 hr
Apr 2, 7:16 AM CDTMesoscale DiscussionSPCAnderson, Bath, Bourbon, Boyle, Bracken, Breckinridge and 35 more89 min
Apr 2, 8:32 AM CDTMesoscale DiscussionSPCCalloway, Christian, Fulton, Graves, Hickman, Marshall and 1 more88 min
Apr 2, 9:00 AM CDTMesoscale DiscussionSPCBoyd, Breathitt, Carter, Elliott, Floyd, Greenup and 10 more60 min
Apr 2, 9:20 AM CDTTornado WatchSPCBoyd, Carter, Greenup, Lawrence3 hr
Apr 2, 9:50 AM CDTTornado WatchSPCAdair, Allen, Barren, Calloway, Casey, Christian and 14 more5 hr
Apr 2, 10:58 AM CDTMesoscale DiscussionSPCHenderson3 hr
Apr 2, 11:48 AM CDTMesoscale DiscussionSPCBallard, Caldwell, Carlisle, Crittenden, Hickman, Livingston and 2 more117 min
Apr 2, 11:58 AM CDTMesoscale DiscussionSPCBath, Breathitt, Clay, Floyd, Jackson, Johnson and 16 more2 hr
Apr 2, 12:08 PM CDTTornado WatchSPCBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more6 hr
Apr 2, 12:25 PM CDTMesoscale DiscussionSPCAllen, Cumberland, Monroe, Simpson2 hr
Apr 2, 12:25 PM CDTTornado WatchSPCBath, Bell, Breathitt, Clay, Elliott, Estill and 27 more9 hr
Apr 2, 2:28 PM CDTMesoscale DiscussionSPCAnderson, Boone, Bourbon, Boyle, Bracken, Breckinridge and 49 more92 min
Apr 2, 2:49 PM CDTTornado WatchSPCAdair, Allen, Anderson, Barren, Boone, Bourbon and 55 more6 hr
Apr 2, 4:34 PM CDTMesoscale DiscussionSPCAllen, Anderson, Barren, Boone, Bracken, Breckinridge and 36 more86 min
Apr 2, 5:15 PM CDTMesoscale DiscussionSPCBath, Boone, Bourbon, Boyd, Bracken, Campbell and 17 more90 min
Apr 2, 6:22 PM CDTTornado WatchSPCBoyd, Carter, Greenup, Lawrence4 hr
Apr 2, 6:59 PM CDTMesoscale DiscussionSPCGreenup61 min
Apr 2, 12:58 PM CDTMesoscale DiscussionSPCAdams, Attala, Carroll, Claiborne, Copiah, Covington and 26 more2 hr
Apr 2, 4:33 PM CDTMesoscale DiscussionSPCAnderson, Bledsoe, Blount, Bradley, Campbell, Carter and 29 more87 min
Apr 2, 5:07 PM CDTTornado WatchSPCAnderson, Bledsoe, Blount, Bradley, Campbell, Claiborne and 25 more7 hr
Apr 2, 11:12 AM CDTMesoscale DiscussionSPCAlleghany, Amherst, Augusta, Bath, Botetourt, Craig and 7 more63 min
Apr 2, 3:38 PM CDTMesoscale DiscussionSPCAlleghany, Amherst, Augusta, Bath, Botetourt, Highland and 7 more97 min

Nearby

Mesoscale Discussions in Tennessee, 2024Mesoscale Discussions in Kentucky, 2024Mesoscale Discussions in Mississippi, 2024Every 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.