Alert archive / Tennessee / Tornado Watches in 1997

Tornado Watch 71

February 27, 199718 counties in Alabama; 5 counties in Mississippi; 30 counties in Tennessee

The Storm Prediction Center issued this tornado watch at Feb 27, 1997, 12:15 AM CST for 18 counties in Alabama; 5 counties in Mississippi; 30 counties in Tennessee. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Feb 27, 1997, 12:15 AM CST (06:15 UTC)
Expired
Feb 27, 1997, 6:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 53 counties

Bibb County, AL, Blount County, AL, Colbert County, AL, Cullman County, AL, Fayette County, AL, Franklin County, AL, Jefferson County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marion County, AL, Morgan County, AL, Pickens County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL, Itawamba County, MS, Lowndes County, MS, Monroe County, MS, Noxubee County, MS, Tishomingo County, MS, Bedford County, TN, Cannon County, TN, Cheatham County, TN, Clay County, TN, Coffee County, TN, Davidson County, TN, DeKalb County, TN, Dickson County, TN, Franklin County, TN, Giles County, TN, Hickman County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Montgomery County, TN, Moore County, TN, Perry County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Warren County, TN, Wayne County, TN, Williamson County, TN, Wilson County, TN

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Feb 27, 12:16 AM CSTSevere Thunderstorm WarningMEGClay, Monroe49 min
Feb 27, 12:25 AM CSTSevere Thunderstorm WarningOHXDickson, Houston50 min
Feb 27, 12:34 AM CSTSevere Thunderstorm WarningOHXMontgomery26 min
Feb 27, 12:36 AM CSTSevere Thunderstorm WarningOHXMontgomery39 min
Feb 27, 12:51 AM CSTSevere Thunderstorm WarningOHXDickson39 min
Feb 27, 1:03 AM CSTSevere Thunderstorm WarningBMXColbert, Lauderdale57 min
Feb 27, 1:28 AM CSTSevere Thunderstorm WarningBMXLamar, Marion47 min
Feb 27, 1:32 AM CSTSevere Thunderstorm WarningBMXFranklin58 min
Feb 27, 1:56 AM CSTSevere Thunderstorm WarningBMXColbert64 min
Feb 27, 2:06 AM CSTSevere Thunderstorm WarningBMXLawrence69 min
Feb 27, 2:15 AM CSTSevere Thunderstorm WarningOHXTrousdale, Wilson45 min
Feb 27, 2:30 AM CSTSevere Thunderstorm WarningBMXLimestone60 min
Feb 27, 2:58 AM CSTSevere Thunderstorm WarningBMXLawrence, Morgan62 min

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 6.3 hours before the alert went out and 155 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, Birmingham, AL at 00:00Z on 1997-02-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Birmingham, AL at 00:00Z on 1997-02-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 260 square meters per square second.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
612 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
260 m²/s²
0-3 km storm-relative helicity
316 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.

255 
WWUS9 KMKC 270543
SEL1  
MKC WW 270543
MSZ000-ALZ000-TNZ000-271200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 71
STORM PREDICTION CENTER NORMAN OK
1143 PM CST WED FEB 26 1997

A...THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR
     
   PARTS OF NORTHEAST MISSISSIPPI                        
   PARTS OF NORTHERN ALABAMA                            
   PARTS OF MIDDLE TENNESSEE                          

EFFECTIVE THIS THURSDAY MORNING UNTIL 600 AM CST.

TORNADOES...LARGE HAIL...DANGEROUS LIGHTNING AND DAMAGING
THUNDERSTORM WINDS ARE POSSIBLE IN THESE AREAS.


THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES EAST AND WEST
OF A LINE FROM 30 MILES SOUTHWEST OF TUSCALOOSA ALABAMA TO 40 MILES
NORTH NORTHEAST OF NASHVILLE TENNESSEE.

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.
$$

C...TORNADOES AND A FEW SVR TSTMS WITH HAIL SFC AND ALF TO 1 1/2
INCHES.  EXTRM TURBC AND SFC WIND GUSTS TO 70 KNOTS.  A FEW CBS
WITH MAX TOPS TO 450.  MEAN WIND VECTOR 22055.

D...LN OF STG/SVR TSTMS CONT EWD INTO MRGLY UNSTBL AND HIGHLY
SHEARED WARM SECTOR.  WITH SUCH IMPRESSIVE SHEAR...90 KT AT 7K FT
ACRS TN AND NRN MS/NWRN AL PTNL CONTS FOR SML SCALE SUPERCELLS AND
TORNADOS WITH LN.

E...OTR TSTMS...  CONT..WW 69..WW 70..

...HALES

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 26, 8:00 PM CSTTornado WatchSPCAlcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 41 more6 hr

Nearby

Tornado Watches in Tennessee, 1997Tornado Watches in Alabama, 1997Tornado Watches in Mississippi, 1997Every tornado watch in 1997

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.