Alert archive / Tennessee / Tornado Watches in 2002

Tornado Watch 176

April 28, 20025 states

The Storm Prediction Center issued this tornado watch at Apr 28, 2002, 4:00 PM CDT for 5 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 28, 2002, 4:00 PM CDT (21:00 UTC)
Expired
Apr 28, 2002, 9:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 97 counties

Colbert County, AL, Franklin County, AL, Jackson County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Catoosa County, GA, Dade County, GA, Fannin County, GA, Gilmer County, GA, Murray County, GA, Rabun County, GA, Towns County, GA, Union County, GA, Walker County, GA, Whitfield County, GA, Alexander County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Catawba County, NC, Cherokee County, NC, Clay County, NC, Cleveland County, NC, Davie County, NC, Gaston County, NC, Graham County, NC, Haywood County, NC, Henderson County, NC, Iredell County, NC, Jackson County, NC, Lincoln County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Mecklenburg County, NC, Mitchell County, NC, Polk County, NC, Rowan County, NC, Rutherford County, NC, Swain County, NC, Transylvania County, NC, Union County, NC, Watauga County, NC, Wilkes County, NC, Yadkin County, NC, Yancey County, NC, Cherokee County, SC, Greenville County, SC, Pickens County, SC, Spartanburg County, SC, York County, SC, Anderson County, TN, Bedford County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Cannon County, TN, Cocke County, TN, Coffee County, TN, Cumberland County, TN, DeKalb County, TN, Franklin County, TN, Giles County, TN, Greene County, TN, Grundy County, TN, Hamilton County, TN, Hickman County, TN, Jefferson County, TN, Knox County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Loudon County, TN, Marion County, TN, Marshall County, TN, Maury County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Moore County, TN, Perry County, TN, Polk County, TN, Rhea County, TN, Roane County, TN, Rutherford County, TN, Sequatchie County, TN, Sevier County, TN, Unicoi County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, White County, TN, Williamson County, TN

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 28, 4:06 PM CDTSevere Thunderstorm WarningMRXMeigs, Rhea39 min
Apr 28, 4:10 PM CDTTornado WarningOHXBedford, Marshall, Moore35 min
Apr 28, 4:14 PM CDTSevere Thunderstorm WarningGSPMitchell, Yancey31 min
Apr 28, 4:16 PM CDTTornado WarningOHXWayne29 min
Apr 28, 4:22 PM CDTTornado WarningOHXLincoln23 min
Apr 28, 4:28 PM CDTSevere Thunderstorm WarningRNKWilkes47 min
Apr 28, 4:29 PM CDTSevere Thunderstorm WarningOHXLawrence46 min
Apr 28, 4:30 PM CDTSevere Thunderstorm WarningMRXGreene, Hawkins45 min
Apr 28, 4:36 PM CDTSevere Thunderstorm WarningOHXVan Buren39 min
Apr 28, 4:39 PM CDTTornado WarningMRXGreene, Hawkins51 min
Apr 28, 4:45 PM CDTSevere Thunderstorm WarningOHXFranklin45 min
Apr 28, 4:48 PM CDTTornado WarningOHXLawrence27 min
Apr 28, 4:54 PM CDTSevere Thunderstorm WarningMRXBledsoe36 min
Apr 28, 4:58 PM CDTSevere Thunderstorm WarningGSPDavie, Iredell32 min
Apr 28, 5:09 PM CDTSevere Thunderstorm WarningOHXWarren31 min
Apr 28, 5:12 PM CDTSevere Thunderstorm WarningMRXCarter, Unicoi48 min
Apr 28, 5:13 PM CDTSevere Thunderstorm WarningMRXMeigs, Rhea47 min
Apr 28, 5:14 PM CDTTornado WarningBMXLimestone46 min
Apr 28, 5:14 PM CDTSevere Thunderstorm WarningOHXBedford, Marshall31 min
Apr 28, 5:18 PM CDTTornado WarningOHXGiles, Lawrence27 min
Apr 28, 5:20 PM CDTSevere Thunderstorm WarningOHXGiles, Lawrence40 min
Apr 28, 5:25 PM CDTSevere Thunderstorm WarningGSPMitchell50 min
Apr 28, 5:26 PM CDTSevere Thunderstorm WarningOHXVan Buren39 min
Apr 28, 5:29 PM CDTSevere Thunderstorm WarningMRXMarion46 min
Apr 28, 5:39 PM CDTSevere Thunderstorm WarningGSPAvery51 min
Apr 28, 5:42 PM CDTSevere Thunderstorm WarningMRXMcMinn33 min
Apr 28, 5:59 PM CDTSevere Thunderstorm WarningGSPCaldwell46 min
Apr 28, 6:04 PM CDTSevere Thunderstorm WarningMRXMonroe26 min
Apr 28, 6:21 PM CDTSevere Thunderstorm WarningGSPRabun39 min
Apr 28, 6:21 PM CDTSevere Thunderstorm WarningMRXCherokee39 min
Apr 28, 6:22 PM CDTSevere Thunderstorm WarningOHXGiles28 min
Apr 28, 6:29 PM CDTSevere Thunderstorm WarningFFCChattooga, Walker31 min
Apr 28, 6:30 PM CDTSevere Thunderstorm WarningOHXGiles20 min
Apr 28, 6:34 PM CDTSevere Thunderstorm WarningFFCChattooga, Walker26 min
Apr 28, 6:38 PM CDTSevere Thunderstorm WarningFFCChattooga, Walker22 min
Apr 28, 6:59 PM CDTSevere Thunderstorm WarningMRXCherokee, Clay31 min
Apr 28, 7:03 PM CDTSevere Thunderstorm WarningOHXLincoln42 min
Apr 28, 7:08 PM CDTSevere Thunderstorm WarningBMXMadison52 min
Apr 28, 7:25 PM CDTSevere Thunderstorm WarningBMXLimestone35 min
Apr 28, 7:36 PM CDTSevere Thunderstorm WarningBMXJackson39 min
Apr 28, 7:38 PM CDTSevere Thunderstorm WarningGSPRabun37 min
Apr 28, 7:59 PM CDTSevere Thunderstorm WarningBMXLimestone46 min
Apr 28, 8:14 PM CDTSevere Thunderstorm WarningBMXJackson46 min
Apr 28, 8:15 PM CDTSevere Thunderstorm WarningBMXMadison30 min
Apr 28, 8:18 PM CDTTornado WarningBMXLimestone27 min
Apr 28, 8:39 PM CDTTornado WarningBMXDeKalb, Jackson66 min
Apr 28, 8:55 PM CDTSevere Thunderstorm WarningBMXMadison50 min
Apr 28, 8:57 PM CDTSevere Thunderstorm WarningBMXLimestone48 min

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.0 hours before the alert went out and 162 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 2002-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 998 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 2002-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 260 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
998 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
851 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
260 m²/s²
0-3 km storm-relative helicity
258 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000
WWUS20 KWNS 282107
SEL6  
SPC WW 282104
ALZ000-GAZ000-NCZ000-SCZ000-TNZ000-290200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 176
STORM PREDICTION CENTER NORMAN OK
504 PM EDT SUN APR 28 2002

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   NORTHERN ALABAMA                            
   NORTHERN GEORGIA                            
   WESTERN NORTH CAROLINA                     
   WESTERN SOUTH CAROLINA                     
   MIDDLE AND EASTERN TENNESSEE                          

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 500 PM UNTIL 1000
PM EDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 50 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 35 MILES NORTHWEST OF MUSCLE SHOALS ALABAMA TO
45 MILES NORTHEAST OF CHARLOTTE NORTH CAROLINA.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 170.  WATCH NUMBER 170 WILL NOT BE IN EFFECT AFTER 500 PM
EDT.  CONTINUE...WW 169...WW 171...WW 172...WW 173...WW 174...WW
175...

DISCUSSION...ISOLATED SUPERCELLS WILL CONTINUE TO TRACK EASTWARD
AHEAD OF COLD FRONT.  MODERATE INSTABILITY AND STRONG SHEAR WILL
PROMOTE THREAT OF LARGE HAIL AND ISOLATED TORNADOES...ALONG WITH
DAMAGING WINDS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 28030.

...HART

422,0905 453,0914 453,0881 422,0873

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 28, 1:15 PM CDTTornado WatchSPCCherokee, Clay, Graham, Haywood, Macon, Madison and 1 more5 hr
Apr 28, 5:45 PM CDTTornado WatchSPCAlamance, Bertie, Camden, Caswell, Chatham, Chowan and 29 more3 hr
Apr 28, 2:00 AM CDTTornado WatchSPCBenton, Carroll, Cheatham, Crockett, Dickson, Dyer and 11 more5 hr
Apr 28, 5:15 AM CDTTornado WatchSPCCannon, Cheatham, Clay, Davidson, DeKalb, Fentress and 15 more4 hr
Apr 28, 11:30 AM CDTTornado WatchSPCBenton, Cheatham, Clay, Davidson, DeKalb, Dickson and 18 more5 hr

Nearby

Tornado Watches in Tennessee, 2002Tornado Watches in North Carolina, 2002Tornado Watches in Georgia, 2002Every tornado watch in 2002

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.