Alert archive / Tennessee / Tornado Watches in 2004

Tornado Watch 902

November 24, 20044 states

The Storm Prediction Center issued this tornado watch at Nov 24, 2004, 11:30 AM CST for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Nov 24, 2004, 11:30 AM CST (17:30 UTC)
Expired: Nov 24, 2004, 5:00 PM CST
In force: 6 hr
Issued by: the Storm Prediction Center

All 65 counties

Edwards County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Pope County, IL, Saline County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Dubois County, IN, Gibson County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Butler County, KY, Caldwell County, KY, Calloway County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Hancock County, KY, Henderson County, KY, Hopkins County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McLean County, KY, Muhlenberg County, KY, Ohio County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Webster County, KY, Bedford County, TN, Benton County, TN, Carroll County, TN, Cheatham County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Giles County, TN, Hardin County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Marshall County, TN, Maury County, TN, Montgomery County, TN, Moore County, TN, Perry County, TN, Robertson County, TN, Rutherford County, TN, Stewart County, TN, Sumner County, TN, Wayne County, TN, Williamson County, TN

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Nov 24, 11:43 AM CST	Severe Thunderstorm Warning	PAH	Crittenden	32 min
Nov 24, 11:57 AM CST	Severe Thunderstorm Warning	PAH	Union, Webster	33 min
Nov 24, 12:46 PM CST	Severe Thunderstorm Warning	PAH	Hopkins	29 min
Nov 24, 12:56 PM CST	Severe Thunderstorm Warning	PAH	Muhlenberg	49 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, 5.5 hours before the alert went out and 139 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 21 J/kg
Mixed-layer CIN: -283 J/kg
Mixed-layer LCL: 867 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 436 m²/s²
0-3 km storm-relative helicity: 481 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.

278 
WWUS20 KWNS 241732
SEL2  
SPC WW 241730
ILZ000-INZ000-KYZ000-TNZ000-242300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 902
NWS STORM PREDICTION CENTER NORMAN OK
1130 AM CST WED NOV 24 2004

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

       SOUTHEAST ILLINOIS
       SOUTHWEST INDIANA
       WESTERN KENTUCKY
       WESTERN/MIDDLE TENNESSEE

EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 1130 AM UNTIL
500 PM CST.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES EAST AND WEST
OF A LINE FROM 80 MILES SOUTH SOUTHWEST OF NASHVILLE TENNESSEE TO
45 MILES NORTH NORTHWEST OF EVANSVILLE INDIANA.

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...CONTINUE...WW 899...WW 900...WW 901...

DISCUSSION...INTENSE/DEEPENING SYSTEM MOVING RAPIDLY NEWD INTO OH/TN
VALLEY. VERY STRONG DEEP LAYER SHEAR COUPLED WITH MODEST BUT
ADEQUATE INSTABILITY WILL SUPPORT LOW TOPPED SUPERCELLS ALONG/AHEAD
OF COLD FRONT MOVING EWD INTO WRN KY/TN.  TORNADO POTENTIAL WILL BE
ENHANCED IN CONVERGENCE VICINITY WARM FRONT WHICH EXTENDS ENEWD FROM
SURFACE LOW NOW SERN IL INTO SRN IND.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
350. MEAN STORM MOTION VECTOR 24045.


...HALES

350,0881 383,0885 383,0864 350,0860

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 24, 6:50 AM CST	Mesoscale Discussion	SPC	Adams, Brown, Cass, DeWitt, Ford, Fulton and 20 more	5 hr
Nov 24, 10:16 AM CST	Mesoscale Discussion	SPC	Gallatin, Hardin, Johnson, Massac, Pope, Pulaski and 1 more	2 hr
Nov 24, 12:31 PM CST	Mesoscale Discussion	SPC	Brown, Bureau, Cass, Champaign, Christian, DeKalb and 32 more	5 hr
Nov 24, 12:55 PM CST	Mesoscale Discussion	SPC	Edwards, Gallatin, Hamilton, Hardin, Pope, Saline and 3 more	95 min
Nov 24, 2:56 PM CST	Mesoscale Discussion	SPC	Edwards, Gallatin, Hamilton, Hardin, Pope, Saline and 3 more	2 hr
Nov 24, 1:25 PM CST	Tornado Watch	SPC	Bartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 16 more	5 hr
Nov 24, 5:02 PM CST	Mesoscale Discussion	SPC	Bartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 12 more	28 min
Nov 24, 5:25 PM CST	Tornado Watch	SPC	Dearborn, Decatur, Fayette, Franklin, Ohio, Ripley and 4 more	4 hr
Nov 23, 9:00 PM CST	Mesoscale Discussion	SPC	Bedford, Benton, Cannon, Carroll, Cheatham, Chester and 32 more	2 hr
Nov 23, 9:20 PM CST	Tornado Watch	SPC	Franklin, Giles, Grundy, Hardin, Lawrence, Lincoln and 3 more	7 hr

Nearby

Tornado Watches in Tennessee, 2004 Tornado Watches in Kentucky, 2004 Tornado Watches in Illinois, 2004 Every tornado watch 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.