Alert archive / Tennessee / Mesoscale Discussions in 2024

Mesoscale Discussion 342

April 2, 20247 counties in Kentucky; 29 counties in Tennessee

The Storm Prediction Center issued this mesoscale discussion at Apr 2, 2024, 8:32 AM CDT for 7 counties in Kentucky; 29 counties in Tennessee. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued
Apr 2, 2024, 8:32 AM CDT (13:32 UTC)
Expired
Apr 2, 2024, 10:00 AM CDT
In force
88 min
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch possible
Chance of a watch
60%
All 36 counties

Calloway County, KY, Christian County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, Marshall County, KY, Trigg County, KY, Benton County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dickson County, TN, Dyer County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lake County, TN, Lauderdale County, TN, Lewis County, TN, Madison County, TN, McNairy County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Stewart County, TN, Tipton County, TN, Wayne County, TN, Weakley County, TN

The radar

The Paducah radar (KPAH), 120 km from the middle of the area, began a volume at 13:34 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, 1.5 hours before the alert went out and 159 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 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, 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 CDTMesoscale DiscussionSPCAdair, Allen, Barren, Bell, Breathitt, Clay and 23 more116 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, 3:08 PM CDTTornado WatchSPCBedford, Benton, Cannon, Carroll, Cheatham, Chester and 45 more6 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

Nearby

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