Alert archive / Tennessee / Mesoscale Discussions in 2004

Mesoscale Discussion 1659

July 13, 20045 states

The Storm Prediction Center issued this mesoscale discussion at Jul 13, 2004, 11:13 PM CDT for 5 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jul 13, 2004, 11:13 PM CDT (04:13 UTC)
Expired
Jul 14, 2004, 1:15 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 159 counties

Alexander County, IL, Clark County, IL, Clay County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, Douglas County, IL, Edgar County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jasper County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Marion County, IL, Massac County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Richland County, IL, Saline County, IL, Union County, IL, Vermilion County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Adams County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Dubois County, IN, Fountain County, IN, Gibson County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hendricks County, IN, Howard County, IN, Huntington County, IN, Knox County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Miami County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Pike County, IN, Posey County, IN, Putnam County, IN, Spencer County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vanderburgh County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, Warrick County, IN, Wells County, IN, Allen County, KY, Ballard County, KY, Barren County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Edmonson County, KY, Fulton County, KY, Graves County, KY, Hancock County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Monroe County, KY, Muhlenberg County, KY, Ohio County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Warren County, KY, Webster County, KY, Mississippi County, MO, Bedford County, TN, Benton County, TN, Bledsoe County, TN, Blount County, TN, Cannon County, TN, Carroll County, TN, Cheatham County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, Davidson County, TN, Decatur County, TN, DeKalb County, TN, Dickson County, TN, Gibson County, TN, Giles County, TN, Grundy County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Loudon County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Meigs County, TN, Montgomery County, TN, Moore County, TN, Morgan County, TN, Obion County, TN, Overton County, TN, Perry County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, Weakley County, TN, White County, TN, Williamson County, TN, Wilson County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.2 hours before the alert went out and 236 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 00:00Z on 2004-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2877 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 00:00Z on 2004-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
2877 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
1306 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

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
Jul 13, 7:36 PM CDTMesoscale DiscussionSPCGallatin, Hamilton, Hardin, Wayne, White114 min
Jul 13, 9:01 PM CDTMesoscale DiscussionSPCAdams, Allen, DeKalb, Elkhart, Fulton, Huntington and 13 more119 min
Jul 13, 9:20 PM CDTSevere Thunderstorm WatchSPCAdams, Allen, Cass, DeKalb, Elkhart, Fulton and 14 more6 hr
Jul 13, 8:20 PM CDTSevere Thunderstorm WatchSPCAllen, Clinton, Cumberland, McCreary, Monroe, Simpson and 2 more6 hr
Jul 13, 10:21 PM CDTMesoscale DiscussionSPCBell, Calloway, Clay, Harlan, Knox, Leslie and 1 more114 min
Jul 14, 5:17 AM CDTMesoscale DiscussionSPCAllen, Barren, Clinton, Cumberland, Edmonson, Metcalfe and 3 more58 min
Jul 14, 12:03 PM CDTMesoscale DiscussionSPCAllen, Bell, Calloway, Clinton, Cumberland, Graves and 13 more117 min
Jul 13, 7:00 PM CDTSevere Thunderstorm WatchSPCAdair, Andrew, Boone, Buchanan, Caldwell, Carroll and 28 more5 hr
Jul 14, 1:45 PM CDTSevere Thunderstorm WatchSPCDunklin, Pemiscot5 hr
Jul 14, 3:44 PM CDTMesoscale DiscussionSPCDunklin, Pemiscot91 min
Jul 14, 7:35 AM CDTMesoscale DiscussionSPCAnderson, Blount, Campbell, Cocke, Grainger, Greene and 11 more85 min

Nearby

Mesoscale Discussions in Tennessee, 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.