Alert archive / Kentucky / Mesoscale Discussions in 2025

Mesoscale Discussion 413

April 5, 20254 states

The Storm Prediction Center issued this mesoscale discussion at Apr 5, 2025, 1:03 PM CDT for 4 states. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued
Apr 5, 2025, 1:03 PM CDT (18:03 UTC)
Expired
Apr 5, 2025, 2:30 PM CDT
In force
87 min
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch likely
Chance of a watch
95%
All 44 counties

Alexander County, IL, Hardin County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Ballard County, KY, Breckinridge County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Edmonson County, KY, Fulton County, KY, Graves County, KY, Grayson County, KY, Hancock County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Ohio County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Warren County, KY, Webster County, KY, Mississippi County, MO, New Madrid County, MO, Scott County, MO, Henry County, TN, Lake County, TN, Montgomery County, TN, Obion County, TN, Stewart County, TN, Weakley County, TN

The radar

The Paducah radar (KPAH), 36 km from the middle of the area, began a volume at 18:07 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

Little Rock, AR (KLZK), launched 12:00Z, 6.1 hours before the alert went out and 260 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, Little Rock, AR at 12:00Z on 2025-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 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, Little Rock, AR at 12:00Z on 2025-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.1939587897Sfc1 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
26 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
816 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.9

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 4, 9:23 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 9 more67 min
Apr 4, 9:41 PM CDTTornado WatchSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 2 more5 hr
Apr 4, 11:35 PM CDTMesoscale DiscussionSPCHardin, Massac115 min
Apr 5, 1:43 PM CDTTornado WatchSPCAdair, Allen, Barren, Butler, Calloway, Casey and 17 more7 hr
Apr 5, 2:34 PM CDTMesoscale DiscussionSPCAllen, Calloway, Christian, Logan, Simpson, Todd and 2 more116 min
Apr 5, 5:42 PM CDTMesoscale DiscussionSPCAdair, Bell, Casey, Clay, Clinton, Cumberland and 15 more63 min
Apr 5, 6:13 PM CDTTornado WatchSPCClay, Jackson, Knox, Laurel, McCreary, Owsley and 4 more2 hr
Apr 4, 8:50 PM CDTTornado WatchSPCDunklin, Pemiscot9 hr
Apr 4, 11:16 PM CDTMesoscale DiscussionSPCDunklin119 min
Apr 5, 2:11 AM CDTMesoscale DiscussionSPCBenton, Carroll, Crockett, Dyer, Gibson, Haywood and 10 more2 hr
Apr 5, 9:31 AM CDTMesoscale DiscussionSPCCrockett, Fayette, Haywood, Lauderdale, Shelby, Tipton119 min
Apr 5, 9:56 AM CDTTornado WatchSPCBenton, Carroll, Chester, Crockett, Decatur, Dyer and 14 more9 hr
Apr 5, 11:36 AM CDTMesoscale DiscussionSPCShelby114 min
Apr 5, 4:50 PM CDTTornado WatchSPCChester, Hardeman, Hardin, McNairy7 hr
Apr 5, 6:18 PM CDTMesoscale DiscussionSPCHardin, Lewis, Wayne87 min

Nearby

Mesoscale Discussions in Kentucky, 2025Mesoscale Discussions in Tennessee, 2025Mesoscale Discussions in Illinois, 2025Every mesoscale discussion in 2025

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.