Alert archive / Kentucky / Mesoscale Discussions in 2013

Mesoscale Discussion 2019

November 17, 20136 counties in Indiana; 52 counties in Kentucky; 14 counties in Tennessee

The Storm Prediction Center issued this mesoscale discussion at Nov 17, 2013, 2:34 PM EST for 6 counties in Indiana; 52 counties in Kentucky; 14 counties in Tennessee. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued
Nov 17, 2013, 2:34 PM EST (19:34 UTC)
Expired
Nov 17, 2013, 3:30 PM EST
In force
56 min
Issued by
the Storm Prediction Center
Chance of a watch
95%
All 72 counties

Clark County, IN, Crawford County, IN, Floyd County, IN, Harrison County, IN, Perry County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Carroll County, KY, Casey County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fayette County, KY, Franklin 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, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Marion County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Pulaski County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Woodford County, KY, Cheatham County, TN, Clay County, TN, Davidson County, TN, Dickson County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Macon County, TN, Montgomery County, TN, Robertson County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Wilson County, TN

The radar

The Louisville radar (KLVX), 96 km from the middle of the area, began a volume at 19:37 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

Nashville Metro, TN (KBNA), launched 12:00Z, 7.6 hours before the alert went out and 118 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 2013-11-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 2013-11-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 391 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
391 m²/s²
0-3 km storm-relative helicity
476 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Nov 17, 3:06 AM ESTMesoscale DiscussionSPCDaviess, Dubois, Gibson, Knox, Pike, Posey and 3 more84 min
Nov 17, 9:40 AM ESTTornado Watch PDSSPCBenton, Jasper, Lake, Newton, Porter7 hr
Nov 17, 11:01 AM ESTMesoscale DiscussionSPCAdams, Allen, Bartholomew, Benton, Blackford, Boone and 56 more119 min
Nov 17, 11:17 AM ESTMesoscale DiscussionSPCGibson, Posey, Spencer, Vanderburgh, Warrick118 min
Nov 17, 11:20 AM ESTTornado Watch PDSSPCAdams, Allen, Bartholomew, Blackford, Boone, Brown and 65 more9 hr
Nov 17, 11:43 AM ESTTornado WatchSPCGibson, Pike, Posey, Spencer, Vanderburgh, Warrick8 hr
Nov 17, 11:49 AM ESTMesoscale DiscussionSPCLake, Newton86 min
Nov 17, 12:57 PM ESTMesoscale DiscussionSPCBenton, Fountain, Jasper, Lake, Montgomery, Newton and 7 more93 min
Nov 17, 12:57 PM ESTMesoscale DiscussionSPCPosey93 min
Nov 17, 2:13 PM ESTMesoscale DiscussionSPCAllen, Bartholomew, Benton, Blackford, Boone, Brown and 59 more77 min
Nov 17, 2:58 PM ESTTornado WatchSPCClark, Crawford, Dubois, Floyd, Harrison, Jefferson and 4 more6 hr
Nov 17, 3:43 PM ESTMesoscale DiscussionSPCGibson, Posey, Spencer, Vanderburgh, Warrick62 min
Nov 17, 3:51 PM ESTMesoscale DiscussionSPCAdams, Allen, Bartholomew, Blackford, Brown, Clay and 34 more84 min
Nov 17, 4:46 PM ESTMesoscale DiscussionSPCClark, Crawford, Dubois, Floyd, Harrison, Orange and 7 more89 min
Nov 17, 2:05 PM ESTMesoscale DiscussionSPCBallard, Carlisle55 min
Nov 17, 4:25 PM ESTTornado WatchSPCGreenup, Lewis, Mason, Robertson5 hr
Nov 17, 6:06 PM ESTMesoscale DiscussionSPCBracken, Campbell, Kenton, Mason54 min
Nov 17, 6:16 PM ESTMesoscale DiscussionSPCAdair, Bath, Boyd, Breathitt, Carter, Casey and 40 more59 min
Nov 17, 5:30 PM ESTTornado WatchSPCBenton, Cheatham, Davidson, Dickson, Houston, Humphreys and 5 more4 hr

Nearby

Mesoscale Discussions in Kentucky, 2013Mesoscale Discussions in Tennessee, 2013Mesoscale Discussions in Indiana, 2013Every mesoscale discussion in 2013

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.