Alert archive / Kentucky / Mesoscale Discussions in 2004

Mesoscale Discussion 547

May 1, 2004Gallatin County, Hardin County, Illinois; 19 counties in Indiana; 63 counties in Kentucky

The Storm Prediction Center issued this mesoscale discussion at May 1, 2004, 12:36 PM CDT for Gallatin County, Hardin County, Illinois; 19 counties in Indiana; 63 counties in Kentucky. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued
May 1, 2004, 12:36 PM CDT (17:36 UTC)
Expired
May 1, 2004, 2:30 PM CDT
In force
114 min
Issued by
the Storm Prediction Center
All 84 counties

Gallatin County, IL, Hardin County, IL, Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Harrison County, IN, Jefferson County, IN, Martin County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Scott County, IN, Spencer County, IN, Switzerland County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Allen County, KY, Anderson County, KY, Barren County, KY, Boone County, KY, Bourbon County, KY, Boyle County, KY, Bracken County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Campbell County, KY, Carroll County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Gallatin 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, Jefferson County, KY, Jessamine County, KY, Kenton County, KY, Larue County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marion County, KY, Marshall County, KY, McLean County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Muhlenberg County, KY, Nelson County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Trimble County, KY, Union County, KY, Warren County, KY, Washington County, KY, Webster County, KY, Woodford County, KY

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.6 hours before the alert went out and 273 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 12:00Z on 2004-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 103 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 12:00Z on 2004-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
103 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
626 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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 1, 12:59 AM CDTMesoscale DiscussionSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 18 more91 min
Apr 30, 7:59 PM CDTMesoscale DiscussionSPCCrawford, Floyd, Harrison, Jackson, Lawrence, Orange and 1 more61 min
May 1, 1:48 PM CDTMesoscale DiscussionSPCGreenup117 min

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.