Alert archive / Tennessee / Mesoscale Discussions in 2007

Mesoscale Discussion 2144

November 14, 200729 counties in Kentucky; 38 counties in Tennessee

The Storm Prediction Center issued this mesoscale discussion at Nov 14, 2007, 2:09 PM CST for 29 counties in Kentucky; 38 counties in Tennessee. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued
Nov 14, 2007, 2:09 PM CST (20:09 UTC)
Expired
Nov 14, 2007, 3:45 PM CST
In force
96 min
Issued by
the Storm Prediction Center
All 67 counties

Adair County, KY, Allen County, KY, Barren County, KY, Bell County, KY, Boyle County, KY, Casey County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Estill County, KY, Garrard County, KY, Green County, KY, Jackson County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Lincoln County, KY, Madison County, KY, McCreary County, KY, Metcalfe County, KY, Monroe County, KY, Owsley County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Taylor County, KY, Wayne County, KY, Whitley County, KY, Anderson County, TN, Bedford County, TN, Bledsoe County, TN, Campbell County, TN, Cannon County, TN, Claiborne County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, Davidson County, TN, DeKalb County, TN, Fentress County, TN, Franklin County, TN, Grundy County, TN, Jackson County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Meigs County, TN, Moore County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Rutherford County, TN, Scott County, TN, Sequatchie County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, White County, TN, Williamson County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 111 km from the middle of the area, began a volume at 20:12 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, 8.2 hours before the alert went out and 117 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 2007-11-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 143 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 2007-11-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 244 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
143 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
506 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
244 m²/s²
0-3 km storm-relative helicity
188 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 14, 11:00 AM CSTMesoscale DiscussionSPCButler, Caldwell, Calloway, Carlisle, Christian, Crittenden and 15 more60 min
Nov 14, 1:56 PM CSTMesoscale DiscussionSPCBenton, Carroll, Chester, Crockett, Decatur, Fayette and 20 more64 min
Nov 14, 2:34 PM CSTSevere Thunderstorm WatchSPCBedford, Benton, Carroll, Cheatham, Chester, Crockett and 27 more5 hr

Nearby

Mesoscale Discussions in Tennessee, 2007Mesoscale Discussions in Kentucky, 2007Every mesoscale discussion in 2007

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.