Alert archive / Kentucky / Mesoscale Discussions in 2004
Mesoscale Discussion 1004
The Storm Prediction Center issued this mesoscale discussion at May 30, 2004, 8:21 PM EDT for Dearborn County, Ohio County, Switzerland County, Indiana; 56 counties in Kentucky; 44 counties in Ohio. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- May 30, 2004, 8:21 PM EDT (00:21 UTC)
- Expired
- May 30, 2004, 9:45 PM EDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
All 103 counties
Dearborn County, IN, Ohio County, IN, Switzerland County, IN, Anderson County, KY, Bath County, KY, Boone County, KY, Bourbon County, KY, Boyd County, KY, Boyle County, KY, Bracken County, KY, Breathitt County, KY, Campbell County, KY, Carroll County, KY, Carter County, KY, Casey County, KY, Clark County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Greenup County, KY, Harrison County, KY, Henry County, KY, Jackson County, KY, Jessamine County, KY, Johnson County, KY, Kenton County, KY, Lawrence County, KY, Lee County, KY, Lewis County, KY, Lincoln County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Mason County, KY, Menifee County, KY, Mercer County, KY, Montgomery County, KY, Morgan County, KY, Nicholas County, KY, Owen County, KY, Owsley County, KY, Pendleton County, KY, Powell County, KY, Robertson County, KY, Rockcastle County, KY, Rowan County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Washington County, KY, Wolfe County, KY, Woodford 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, Crawford County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Hardin County, OH, Highland County, OH, Hocking County, OH, Jackson County, OH, Knox County, OH, Lawrence County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Marion 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, Richland County, OH, Ross County, OH, Scioto County, OH, Shelby County, OH, Union County, OH, Vinton County, OH, Warren County, OH, Wyandot County, OH
The radar
The Cincinnati radar (KILN), 72 km from the middle of the area, began a volume at 00:22 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, 0.4 hours before the alert went out and 73 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.
- Mixed-layer CAPE
- 778 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 710 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 316 m²/s²
- 0-3 km storm-relative helicity
- 399 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 9.6
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 9:20 PM EDT | Tornado Watch | SPC | Dearborn, Ohio, Switzerland | 7 hr |
| May 30, 9:39 PM EDT | Mesoscale Discussion | SPC | Adams, Allen, Bartholomew, Blackford, Boone, Brown and 63 more | 96 min |
| May 30, 11:47 PM EDT | Mesoscale Discussion | SPC | Dearborn, Ohio, Switzerland, Union | 58 min |
| May 31, 1:50 PM EDT | Mesoscale Discussion | SPC | DeKalb, Elkhart, LaGrange, Noble, Steuben | 55 min |
| May 31, 12:40 AM EDT | Tornado Watch | SPC | Floyd, Harlan, Knott, Letcher, Martin, Pike | 5 hr |
| May 31, 2:40 AM EDT | Mesoscale Discussion | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clark and 38 more | 2 hr |
| May 31, 4:40 AM EDT | Mesoscale Discussion | SPC | Floyd, Harlan, Knott, Letcher, Martin, Pike | 95 min |
Nearby
Mesoscale Discussions in Kentucky, 2004Mesoscale Discussions in Ohio, 2004Mesoscale Discussions in Indiana, 2004Every mesoscale discussion in 2004
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.