Alert archive / Kentucky / Mesoscale Discussions in 2003

Mesoscale Discussion 2076

August 4, 200350 counties in Kentucky

The Storm Prediction Center issued this mesoscale discussion at Aug 4, 2003, 12:52 PM CDT for 50 counties in Kentucky. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued
Aug 4, 2003, 12:52 PM CDT (17:52 UTC)
Expired
Aug 4, 2003, 2:45 PM CDT
In force
113 min
Issued by
the Storm Prediction Center
All 50 counties

Adair County, KY, Anderson County, KY, Bath County, KY, Bourbon County, KY, Boyle County, KY, Bracken County, KY, Breathitt 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, Green County, KY, Harrison County, KY, Jackson County, KY, Jessamine County, KY, Laurel County, KY, Lee County, KY, Lincoln County, KY, Madison County, KY, Marion County, KY, Mason County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Montgomery County, KY, Morgan County, KY, Nicholas 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, Russell County, KY, Scott County, KY, Taylor County, KY, Washington County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Woodford County, KY

The radar

The Jackson,KY radar (KJKL), 109 km from the middle of the area, began a volume at 17:55 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.9 hours before the alert went out and 189 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 2003-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1724 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 2003-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
1724 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
755 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

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
Aug 4, 1:43 PM CDTMesoscale DiscussionSPCBallard, Calloway, Carlisle, Christian, Fulton, Graves and 7 more2 hr
Aug 4, 2:40 PM CDTSevere Thunderstorm WatchSPCFulton, Hickman6 hr
Aug 4, 5:43 PM CDTMesoscale DiscussionSPCBath, Bell, Boyd, Breathitt, Carter, Clark and 33 more2 hr
Aug 4, 6:10 PM CDTSevere Thunderstorm WatchSPCBell, Harlan, Knott, Leslie, Letcher, Perry and 1 more5 hr

Nearby

Mesoscale Discussions in Kentucky, 2003Every mesoscale discussion in 2003

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.