Alert archive / Kentucky / Mesoscale Discussions in 2004

Mesoscale Discussion 891

May 25, 200410 counties in Illinois; 26 counties in Indiana; 75 counties in Kentucky

The Storm Prediction Center issued this mesoscale discussion at May 25, 2004, 9:19 AM CDT for 10 counties in Illinois; 26 counties in Indiana; 75 counties in Kentucky. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued
May 25, 2004, 9:19 AM CDT (14:19 UTC)
Expired
May 25, 2004, 10:45 AM CDT
In force
86 min
Issued by
the Storm Prediction Center
All 111 counties

Edwards County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Lawrence County, IL, Pope County, IL, Richland County, IL, Saline County, IL, Wabash County, IL, White County, IL, Clark County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Ripley County, IN, Scott County, IN, Spencer County, IN, Switzerland County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Adair County, KY, Anderson County, KY, Bath County, KY, Boone County, KY, Bourbon County, KY, Boyle County, KY, Bracken County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Campbell County, KY, Carroll County, KY, Carter County, KY, Casey County, KY, Clark County, KY, Crittenden County, KY, Daviess County, KY, Edmonson 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, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henderson County, KY, Henry County, KY, Hopkins County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Kenton County, KY, Larue County, KY, Lee County, KY, Lewis County, KY, Lincoln County, KY, Madison County, KY, Marion County, KY, Mason County, KY, McLean County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Montgomery County, KY, Morgan County, KY, Muhlenberg County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Owsley County, KY, Pendleton County, KY, Powell County, KY, Pulaski County, KY, Robertson County, KY, Rockcastle County, KY, Rowan County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Union County, KY, Washington County, KY, Webster County, KY, Wolfe County, KY, Woodford County, KY

The radar

The Louisville radar (KLVX), 31 km from the middle of the area, began a volume at 14:21 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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 2.3 hours before the alert went out and 228 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 2004-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1790 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 2004-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 square meters per square second.193958Sfc1 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
1790 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
796 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.4
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 8:15 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Hancock, Henderson, McDonough and 3 more90 min
May 24, 10:26 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 36 more64 min
May 24, 10:45 PM CDTTornado WatchSPCBond, Brown, Calhoun, Cass, Champaign, Christian and 27 more5 hr
May 24, 11:45 PM CDTMesoscale DiscussionSPCBond, Calhoun, Cass, Champaign, Christian, Clark and 24 more90 min
May 25, 3:00 AM CDTSevere Thunderstorm WatchSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 15 more3 hr
May 25, 1:05 PM CDTSevere Thunderstorm WatchSPCBond, Calhoun, Christian, Clinton, Fayette, Greene and 12 more6 hr
May 25, 2:39 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more96 min
May 25, 3:00 PM CDTSevere Thunderstorm WatchSPCAlexander, Clay, Clinton, Crawford, Edwards, Franklin and 22 more6 hr
May 25, 3:16 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clinton, Fayette, Greene and 12 more89 min
May 25, 5:03 PM CDTMesoscale DiscussionSPCAlexander, Bond, Clay, Clinton, Crawford, Edwards and 25 more87 min
May 25, 6:04 PM CDTMesoscale DiscussionSPCBond, Clinton, Madison, Monroe, Perry, Randolph and 2 more56 min
May 25, 4:23 AM CDTMesoscale DiscussionSPCBartholomew, Blackford, Clark, Crawford, Dearborn, Decatur and 28 more97 min
May 25, 4:02 PM CDTMesoscale DiscussionSPCBartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 16 more58 min
May 25, 4:30 PM CDTSevere Thunderstorm WatchSPCClark, Crawford, Dubois, Floyd, Greene, Harrison and 14 more6 hr

Nearby

Mesoscale Discussions in Kentucky, 2004Mesoscale Discussions in Indiana, 2004Mesoscale Discussions in Illinois, 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.