Alert archive / Kentucky / Mesoscale Discussions in 2024

Mesoscale Discussion 340

April 2, 202413 counties in Indiana; 31 counties in Kentucky; Clermont County, Ohio

The Storm Prediction Center issued this mesoscale discussion at Apr 2, 2024, 5:55 AM EDT for 13 counties in Indiana; 31 counties in Kentucky; Clermont County, Ohio. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued
Apr 2, 2024, 5:55 AM EDT (09:55 UTC)
Expired
Apr 2, 2024, 7:30 AM EDT
In force
95 min
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch likely
Chance of a watch
80%
All 45 counties

Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Ohio County, IN, Perry County, IN, Scott County, IN, Spencer County, IN, Switzerland County, IN, Warrick County, IN, Washington County, IN, Anderson County, KY, Boone County, KY, Bourbon County, KY, Bracken County, KY, Breckinridge County, KY, Bullitt County, KY, Campbell County, KY, Carroll County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Grant County, KY, Hancock County, KY, Harrison County, KY, Henry County, KY, Jefferson County, KY, Kenton County, KY, Mason County, KY, Meade County, KY, Nelson County, KY, Nicholas County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Woodford County, KY, Clermont County, OH

The radar

The Louisville radar (KLVX), 58 km from the middle of the area, began a volume at 09:56 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 9.9 hours before the alert went out and 189 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, Cncnati-Daytn, OH at 00:00Z on 2024-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 159 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, Cncnati-Daytn, OH at 00:00Z on 2024-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 square meters per square second.1939587897117Sfc1 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
159 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
901 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

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, 8:37 PM EDTMesoscale DiscussionSPCBartholomew, Brown, Clay, Daviess, Dearborn, Decatur and 32 more83 min
Apr 1, 8:38 PM EDTSevere Thunderstorm WatchSPCBartholomew, Boone, Brown, Clay, Daviess, Dearborn and 33 more6 hr
Apr 2, 2:16 AM EDTMesoscale DiscussionSPCDaviess, Dubois, Gibson, Greene, Knox, Martin and 6 more89 min
Apr 2, 3:00 AM EDTTornado WatchSPCDaviess, Gibson, Knox, Pike, Posey, Spencer and 2 more5 hr
Apr 2, 4:10 AM EDTMesoscale DiscussionSPCBartholomew, Brown, Dearborn, Decatur, Franklin, Jackson and 9 more95 min
Apr 2, 6:55 AM EDTTornado WatchSPCClark, Crawford, Dubois, Floyd, Harrison, Perry4 hr
Apr 2, 8:16 AM EDTMesoscale DiscussionSPCHarrison89 min
Apr 2, 11:58 AM EDTMesoscale DiscussionSPCBartholomew, Brown, Clay, Crawford, Daviess, Dearborn and 36 more3 hr
Apr 2, 12:48 PM EDTMesoscale DiscussionSPCPosey117 min
Apr 2, 1:08 PM EDTTornado WatchSPCGibson, Pike, Posey, Spencer, Vanderburgh, Warrick6 hr
Apr 2, 3:28 PM EDTMesoscale DiscussionSPCBartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 23 more92 min
Apr 2, 3:49 PM EDTTornado WatchSPCBartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 24 more6 hr
Apr 2, 5:34 PM EDTMesoscale DiscussionSPCClark, Dearborn, Floyd, Harrison, Jefferson, Ohio and 2 more86 min
Apr 2, 6:15 PM EDTMesoscale DiscussionSPCDearborn, Ohio, Switzerland90 min
Apr 2, 9:32 AM EDTMesoscale DiscussionSPCCalloway, Christian, Fulton, Graves, Hickman, Marshall and 1 more88 min
Apr 2, 10:00 AM EDTMesoscale DiscussionSPCBoyd, Breathitt, Carter, Elliott, Floyd, Greenup and 10 more60 min
Apr 2, 10:20 AM EDTTornado WatchSPCBoyd, Carter, Greenup, Lawrence3 hr
Apr 2, 10:50 AM EDTTornado WatchSPCAdair, Allen, Barren, Calloway, Casey, Christian and 14 more5 hr
Apr 2, 12:58 PM EDTMesoscale DiscussionSPCBath, Breathitt, Clay, Floyd, Jackson, Johnson and 16 more2 hr
Apr 2, 1:25 PM EDTMesoscale DiscussionSPCAllen, Cumberland, Monroe, Simpson2 hr
Apr 2, 1:25 PM EDTTornado WatchSPCBath, Bell, Breathitt, Clay, Elliott, Estill and 27 more9 hr
Apr 2, 3:49 PM EDTMesoscale DiscussionSPCAdair, Allen, Barren, Bell, Breathitt, Clay and 23 more116 min
Apr 2, 7:22 PM EDTTornado WatchSPCBoyd, Carter, Greenup, Lawrence4 hr
Apr 2, 7:59 PM EDTMesoscale DiscussionSPCGreenup61 min

Nearby

Mesoscale Discussions in Kentucky, 2024Mesoscale Discussions in Indiana, 2024Mesoscale Discussions in Ohio, 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.