Alert archive / Tennessee / Tornado Watches in 2008

Tornado Watch 135

March 19, 200825 counties in Kentucky; 33 counties in Tennessee; Lee County, Wise County, City of Norton, Virginia

The Storm Prediction Center issued this tornado watch at Mar 19, 2008, 3:03 PM EDT for 25 counties in Kentucky; 33 counties in Tennessee; Lee County, Wise County, City of Norton, Virginia. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Mar 19, 2008, 3:03 PM EDT (19:03 UTC)
Expired
Mar 19, 2008, 7:50 PM EDT
In force
5 hr
Issued by
the Storm Prediction Center
All 61 counties

Bell County, KY, Breathitt County, KY, Clay County, KY, Estill County, KY, Floyd County, KY, Harlan County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Magoffin County, KY, Martin County, KY, McCreary County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Pulaski County, KY, Rockcastle County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Anderson County, TN, Bedford County, TN, Bledsoe County, TN, Bradley County, TN, Campbell County, TN, Cannon County, TN, Claiborne County, TN, Coffee County, TN, Cumberland County, TN, DeKalb County, TN, Fentress County, TN, Grainger County, TN, Grundy County, TN, Hamilton County, TN, Hancock County, TN, Jackson County, TN, Knox County, TN, Loudon County, TN, Marion County, TN, McMinn County, TN, Meigs County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Scott County, TN, Sequatchie County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, White County, TN, City of Norton, VA, Lee County, VA, Wise County, VA

The radar

The Knoxville radar (KMRX), 100 km from the middle of the area, began a volume at 19:03 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.

Warnings issued inside it

36 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 19, 3:15 PM EDTTornado WarningOHXCannon, DeKalb, Warren, White30 min
Mar 19, 3:34 PM EDTSevere Thunderstorm WarningOHXFentress, Overton, Putnam26 min
Mar 19, 3:49 PM EDTSevere Thunderstorm WarningOHXCumberland, Van Buren, White26 min
Mar 19, 3:52 PM EDTSevere Thunderstorm WarningOHXFentress, Pickett23 min
Mar 19, 3:57 PM EDTSevere Thunderstorm WarningOHXGrundy, Van Buren33 min
Mar 19, 4:11 PM EDTSevere Thunderstorm WarningJKLBell, Clay, Jackson, Knox, Laurel, McCreary and 1 more34 min
Mar 19, 4:14 PM EDTSevere Thunderstorm WarningMRXMarion46 min
Mar 19, 4:18 PM EDTSevere Thunderstorm WarningOHXCumberland27 min
Mar 19, 4:23 PM EDTSevere Thunderstorm WarningMRXMorgan, Scott52 min
Mar 19, 4:26 PM EDTSevere Thunderstorm WarningJKLBreathitt, Clay, Estill, Jackson, Lee, Owsley and 2 more34 min
Mar 19, 4:27 PM EDTSevere Thunderstorm WarningMRXBledsoe, Sequatchie63 min
Mar 19, 4:42 PM EDTSevere Thunderstorm WarningJKLClay, Knox, Laurel, Leslie, McCreary, Whitley33 min
Mar 19, 4:45 PM EDTSevere Thunderstorm WarningMRXRhea60 min
Mar 19, 4:50 PM EDTSevere Thunderstorm WarningJKLElliott, Johnson, Magoffin, Menifee, Morgan, Wolfe40 min
Mar 19, 4:52 PM EDTSevere Thunderstorm WarningMRXHamilton53 min
Mar 19, 4:55 PM EDTSevere Thunderstorm WarningMRXMorgan, Roane50 min
Mar 19, 4:56 PM EDTSevere Thunderstorm WarningMRXMarion34 min
Mar 19, 4:57 PM EDTSevere Thunderstorm WarningJKLBreathitt, Clay, Floyd, Knott, Leslie, Magoffin and 3 more48 min
Mar 19, 5:08 PM EDTTornado WarningJKLBreathitt, Perry37 min
Mar 19, 5:10 PM EDTSevere Thunderstorm WarningMRXAnderson, Campbell50 min
Mar 19, 5:13 PM EDTSevere Thunderstorm WarningJKLBell, Clay, Harlan, Knox, Leslie, Letcher and 2 more47 min
Mar 19, 5:15 PM EDTSevere Thunderstorm WarningMRXMeigs30 min
Mar 19, 5:22 PM EDTSevere Thunderstorm WarningMRXMcMinn53 min
Mar 19, 5:27 PM EDTSevere Thunderstorm WarningJKLJohnson, Martin33 min
Mar 19, 5:28 PM EDTSevere Thunderstorm WarningMRXLoudon, Monroe47 min
Mar 19, 5:42 PM EDTSevere Thunderstorm WarningMRXBradley48 min
Mar 19, 5:42 PM EDTSevere Thunderstorm WarningMRXBlount, Knox48 min
Mar 19, 5:45 PM EDTSevere Thunderstorm WarningJKLFloyd, Knott, Letcher, Magoffin, Perry, Pike60 min
Mar 19, 5:45 PM EDTSevere Thunderstorm WarningMRXClaiborne, Grainger, Union45 min
Mar 19, 5:56 PM EDTSevere Thunderstorm WarningJKLBell, Harlan, Leslie, Letcher, Perry64 min
Mar 19, 5:59 PM EDTSevere Thunderstorm WarningJKLMartin31 min
Mar 19, 6:07 PM EDTSevere Thunderstorm WarningMRXHancock38 min
Mar 19, 6:11 PM EDTTornado WarningJKLHarlan20 min
Mar 19, 6:21 PM EDTSevere Thunderstorm WarningMRXGrainger, Hamblen, Jefferson, Sevier39 min
Mar 19, 6:43 PM EDTSevere Thunderstorm WarningMRXGrainger, Greene, Hancock, Hawkins47 min
Mar 19, 7:28 PM EDTSevere Thunderstorm WarningMRXScott, Wise35 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.1 hours before the alert went out and 208 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 2008-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2008-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 623 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
518 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
623 m²/s²
0-3 km storm-relative helicity
803 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 18, 9:43 PM EDTMesoscale DiscussionSPCCaldwell, Calloway, Christian, Fulton, Graves, Hickman and 3 more92 min
Mar 19, 2:13 AM EDTMesoscale DiscussionSPCAllen, Barren, Bullitt, Butler, Calloway, Christian and 18 more62 min
Mar 19, 2:32 PM EDTMesoscale DiscussionSPCBell, Breathitt, Clay, Floyd, Harlan, Jackson and 19 more58 min
Mar 19, 4:54 PM EDTMesoscale DiscussionSPCBell, Boyd, Breathitt, Clay, Elliott, Floyd and 14 more66 min
Mar 18, 11:51 PM EDTTornado WatchSPCChester, Decatur, Hardeman, Hardin, Henderson, McNairy8 hr
Mar 19, 12:42 AM EDTMesoscale DiscussionSPCCarroll, Crockett, Fayette, Gibson, Hardeman, Haywood and 6 more63 min
Mar 19, 5:55 AM EDTMesoscale DiscussionSPCGiles2 hr
Mar 19, 8:08 AM EDTMesoscale DiscussionSPCBedford, Franklin, Giles, Hardin, Lawrence, Lewis and 7 more2 hr
Mar 19, 5:43 PM EDTSevere Thunderstorm WatchSPCBlount, Carter, Cocke, Greene, Hamblen, Hawkins and 8 more4 hr
Mar 19, 7:19 PM EDTMesoscale DiscussionSPCBlount, Carter, Cocke, Greene, Hamblen, Hawkins and 8 more86 min

Nearby

Tornado Watches in Tennessee, 2008Tornado Watches in Kentucky, 2008Tornado Watches in Virginia, 2008Every tornado watch in 2008

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.