Alert archive / Ohio / Mesoscale Discussions in 2025

Mesoscale Discussion 366

April 2, 202522 counties in Indiana; 9 counties in Kentucky; 51 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Apr 2, 2025, 8:45 PM EDT for 22 counties in Indiana; 9 counties in Kentucky; 51 counties in Ohio. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Apr 2, 2025, 8:45 PM EDT (00:45 UTC)
Expired
Apr 2, 2025, 10:45 PM EDT
In force
2 hr
Issued by
the Storm Prediction Center
Concerning
Severe potential...tornado watch likely
Chance of a watch
95%
All 82 counties

Adams County, IN, Bartholomew County, IN, Blackford County, IN, Dearborn County, IN, Decatur County, IN, Delaware County, IN, Fayette County, IN, Franklin County, IN, Hancock County, IN, Henry County, IN, Jay County, IN, Jefferson County, IN, Jennings County, IN, Madison County, IN, Ohio County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Switzerland County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Carroll County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Owen County, KY, Pendleton County, KY, Adams County, OH, Allen County, OH, Ashland County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Coshocton County, OH, Crawford County, OH, Darke County, OH, Delaware County, OH, Erie County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Hancock County, OH, Hardin County, OH, Highland County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Medina County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Perry County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Putnam County, OH, Richland County, OH, Ross County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Warren County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cincinnati radar (KILN), 60 km from the middle of the area, began a volume at 00:46 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, 0.8 hours before the alert went out and 60 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 2025-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 539 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 2025-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 199 square meters per square second.19395878Sfc1 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
539 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
1448 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
199 m²/s²
0-3 km storm-relative helicity
397 m²/s²
Significant tornado parameter
0.6
Supercell composite
8.0

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, 9:13 PM EDTTornado WatchSPCBartholomew, Dearborn, Decatur, Delaware, Fayette, Franklin and 13 more7 hr
Apr 2, 9:20 PM EDTMesoscale DiscussionSPCBartholomew, Boone, Brown, Daviess, Delaware, Greene and 15 more85 min
Apr 2, 10:46 PM EDTMesoscale DiscussionSPCAdams, Bartholomew, Brown, Dearborn, Decatur, Delaware and 12 more89 min
Apr 2, 10:53 PM EDTMesoscale DiscussionSPCClark, Crawford, Floyd, Harrison, Jefferson, Jennings and 6 more2 hr
Apr 2, 8:33 PM EDTMesoscale DiscussionSPCBallard, Calloway, Carlisle, Crittenden, Fulton, Graves and 5 more117 min
Apr 3, 12:05 AM EDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bath, Bourbon and 46 more115 min
Apr 3, 12:35 AM EDTTornado WatchSPCAdair, Allen, Anderson, Barren, Bath, Bourbon and 68 more8 hr
Apr 3, 12:56 AM EDTSevere Thunderstorm WatchSPCBoyd, Carter, Greenup, Lawrence6 hr
Apr 3, 4:54 AM EDTMesoscale DiscussionSPCBoyd96 min
Apr 3, 10:41 AM EDTMesoscale DiscussionSPCBell, Clay, Clinton, Cumberland, Harlan, Knox and 7 more94 min
Apr 3, 1:52 PM EDTTornado WatchSPCAdair, Allen, Barren, Bell, Breathitt, Casey and 23 more9 hr
Apr 3, 3:11 PM EDTMesoscale DiscussionSPCAdair, Breathitt, Casey, Clay, Cumberland, Estill and 15 more2 hr

Nearby

Mesoscale Discussions in Ohio, 2025Mesoscale Discussions in Indiana, 2025Mesoscale Discussions in Kentucky, 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.