Alert archive / Tennessee / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 6

January 24, 200221 counties in Kentucky; 31 counties in Tennessee

The Storm Prediction Center issued this severe thunderstorm watch at Jan 24, 2002, 1:15 AM CST for 21 counties in Kentucky; 31 counties in Tennessee. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Jan 24, 2002, 1:15 AM CST (07:15 UTC)
Expired
Jan 24, 2002, 4:00 AM CST
In force
3 hr
Issued by
the Storm Prediction Center
All 52 counties

Adair County, KY, Allen County, KY, Barren County, KY, Butler County, KY, Casey County, KY, Christian County, KY, Edmonson County, KY, Grayson County, KY, Green County, KY, Hart County, KY, Lincoln County, KY, Logan County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Ohio County, KY, Simpson County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Warren County, KY, Benton County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lewis County, TN, Macon County, TN, Madison County, TN, McNairy County, TN, Montgomery County, TN, Perry County, TN, Robertson County, TN, Shelby County, TN, Stewart County, TN, Sumner County, TN, Trousdale 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.

IssuedProductOfficeCountiesLasted
Jan 24, 1:28 AM CSTSevere Thunderstorm WarningPAHChristian, Todd47 min
Jan 24, 1:58 AM CSTSevere Thunderstorm WarningLMKEdmonson17 min
Jan 24, 3:21 AM CSTFlash Flood WarningOHXBenton, Cheatham, Dickson, Houston, Humphreys, Montgomery and 2 more54 min
Jan 24, 3:25 AM CSTFlash Flood WarningOHXBenton, Cheatham, Dickson, Houston, Humphreys, Montgomery and 2 more3 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 7.3 hours before the alert went out and 131 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 2002-01-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 682 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 2002-01-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 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
682 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
596 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.9
Supercell composite
3.6

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 240700
SEL6  
SPC WW 240655
KYZ000-TNZ000-241000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 6
STORM PREDICTION CENTER NORMAN OK
1255 AM CST THU JAN 24 2002

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

SOUTH CENTRAL KENTUCKY                           
WESTERN AND MIDDLE TENNESSEE                          

EFFECTIVE THIS THURSDAY MORNING FROM 115 AM UNTIL 400 AM CST.

HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 65 STATUTE MILES
EAST AND WEST OF A LINE FROM 45 MILES SOUTH SOUTHWEST OF JACKSON
TENNESSEE TO 55 MILES NORTHEAST OF BOWLING GREEN KENTUCKY.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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.  SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.

OTHER WATCH INFORMATION...  CONTINUE...WW 5...

DISCUSSION...BOW ECHOES WITHIN SQUALL LINE WILL CONTINUE TO MOVE
GENERALLY EWD AROUND 45 KT ACROSS SRN KY/WRN TN.  MUCAPE IN EXCESS
OF 1000 J/KG BASED NEAR THE SURFACE...50-60 KT FLOW IN THE LOWEST
FEW THOUSAND FEET...AND VERY MOIST PROFILES WILL SUPPORT A WIND
DAMAGE THREAT FOR ANOTHER FEW HOURS BEFORE THE STORMS WEAKEN.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. 
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.  MEAN STORM MOTION
VECTOR 26045.


...THOMPSON

373,0843 345,0880 345,0902 373,0865

WWUS20 KWNS 240700
SEL6  
SPC WW 240655
KYZ000-TNZ000-241000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 6
STORM PREDICTION CENTER NORMAN OK
1255 AM CST THU JAN 24 2002

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

SOUTH CENTRAL KENTUCKY                           
WESTERN AND MIDDLE TENNESSEE                          

EFFECTIVE THIS THURSDAY MORNING FROM 115 AM UNTIL 400 AM CST.

HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 65 STATUTE MILES
EAST AND WEST OF A LINE FROM 45 MILES SOUTH SOUTHWEST OF JACKSON
TENNESSEE TO 55 MILES NORTHEAST OF BOWLING GREEN KENTUCKY.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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.  SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.

OTHER WATCH INFORMATION...  CONTINUE...WW 5...

DISCUSSION...BOW ECHOES WITHIN SQUALL LINE WILL CONTINUE TO MOVE
GENERALLY EWD AROUND 45 KT ACROSS SRN KY/WRN TN.  MUCAPE IN EXCESS
OF 1000 J/KG BASED NEAR THE SURFACE...50-60 KT FLOW IN THE LOWEST
FEW THOUSAND FEET...AND VERY MOIST PROFILES WILL SUPPORT A WIND
DAMAGE THREAT FOR ANOTHER FEW HOURS BEFORE THE STORMS WEAKEN.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. 
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.  MEAN STORM MOTION
VECTOR 26045.


...THOMPSON

373,0843 345,0880 345,0902 373,0865

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 23, 9:30 PM CSTTornado WatchSPCCalloway, Carlisle, Fulton, Graves, Hickman, Marshall and 1 more6 hr

Nearby

Severe Thunderstorm Watches in Tennessee, 2002Severe Thunderstorm Watches in Kentucky, 2002Every severe thunderstorm 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.