Alert archive / Tennessee / Tornado Watches in 1997

Tornado Watch 74

March 1, 19974 states

The Storm Prediction Center issued this tornado watch at Mar 1, 1997, 1:00 AM CST for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Mar 1, 1997, 1:00 AM CST (07:00 UTC)
Expired
Mar 1, 1997, 6:00 AM CST
In force
5 hr
Issued by
the Storm Prediction Center
All 73 counties

Colbert County, AL, Franklin County, AL, Lauderdale County, AL, Allen County, KY, Barren County, KY, Caldwell County, KY, Calloway County, KY, Christian County, KY, Graves County, KY, Hickman County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Warren County, KY, Alcorn County, MS, Benton County, MS, Coahoma County, MS, DeSoto County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Benton County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Giles 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, Lauderdale County, TN, Lawrence County, TN, Lewis County, TN, Madison County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Robertson County, TN, Shelby County, TN, Stewart County, TN, Sumner County, TN, Tipton County, TN, Trousdale County, TN, Wayne County, TN, Weakley County, TN, Williamson County, TN

The radar

The Memphis radar (KNQA), 106 km from the middle of the area, began a volume at 07:04 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

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

IssuedProductOfficeCountiesLasted
Mar 1, 1:04 AM CSTTornado WarningOHXWayne26 min
Mar 1, 1:09 AM CSTTornado WarningMEGLee, Union31 min
Mar 1, 1:13 AM CSTTornado WarningOHXLawrence, Lewis47 min
Mar 1, 1:41 AM CSTTornado WarningOHXMaury49 min
Mar 1, 2:13 AM CSTTornado WarningOHXWilliamson47 min
Mar 1, 2:26 AM CSTTornado WarningBMXColbert, Lauderdale64 min
Mar 1, 2:33 AM CSTSevere Thunderstorm WarningMEGTishomingo32 min
Mar 1, 2:38 AM CSTFlash Flood WarningMEGChester92 min
Mar 1, 2:41 AM CSTTornado WarningMEGTishomingo19 min
Mar 1, 2:49 AM CSTTornado WarningMEGLafayette31 min
Mar 1, 2:49 AM CSTSevere Thunderstorm WarningOHXStewart41 min
Mar 1, 2:53 AM CSTTornado WarningOHXWilliamson52 min
Mar 1, 2:55 AM CSTTornado WarningOHXDavidson65 min
Mar 1, 2:58 AM CSTTornado WarningOHXWayne62 min
Mar 1, 2:59 AM CSTTornado WarningMEGHardin21 min
Mar 1, 3:04 AM CSTTornado WarningMEGPontotoc, Union51 min
Mar 1, 3:33 AM CSTFlash Flood WarningMEGFayette, Hardeman2 hr
Mar 1, 3:34 AM CSTTornado WarningOHXLawrence56 min
Mar 1, 3:42 AM CSTFlash Flood WarningMEGMadison2 hr
Mar 1, 3:47 AM CSTSevere Thunderstorm WarningOHXSumner28 min
Mar 1, 3:55 AM CSTTornado WarningOHXBenton, Decatur35 min
Mar 1, 3:59 AM CSTTornado WarningOHXHumphreys61 min
Mar 1, 4:09 AM CSTTornado WarningOHXMacon, Sumner36 min
Mar 1, 4:29 AM CSTSevere Thunderstorm WarningOHXDickson61 min
Mar 1, 4:33 AM CSTSevere Thunderstorm WarningOHXDecatur42 min
Mar 1, 4:34 AM CSTSevere Thunderstorm WarningLMKAllen26 min
Mar 1, 4:37 AM CSTFlash Flood WarningOHXBenton3 hr
Mar 1, 4:47 AM CSTFlash Flood WarningMEGHenderson2 hr
Mar 1, 5:05 AM CSTFlash Flood WarningLMKLogan, Simpson, Warren3 hr
Mar 1, 5:11 AM CSTFlash Flood WarningOHXDickson, Humphreys3 hr
Mar 1, 5:11 AM CSTFlash Flood WarningOHXDecatur3 hr
Mar 1, 5:19 AM CSTSevere Thunderstorm WarningOHXRobertson26 min
Mar 1, 5:28 AM CSTSevere Thunderstorm WarningMEGTippah32 min

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 7.0 hours before the alert went out and 129 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, Little Rock, AR at 00:00Z on 1997-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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, Little Rock, AR at 00:00Z on 1997-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 285 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
3 J/kg
Mixed-layer CIN
-249 J/kg
Mixed-layer LCL
490 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
285 m²/s²
0-3 km storm-relative helicity
344 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

810 
WWUS9 KMKC 010632
SEL4  
MKC WW 010632
KYZ000-TNZ000-MSZ000-ALZ000-011200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 74
STORM PREDICTION CENTER NORMAN OK
1232 AM CST SAT MAR 1 1997

A...THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR

   PARTS OF SOUTHWEST KENTUCKY                           
   PARTS OF WESTERN AND MIDDLE TENNESSEE                          
   PARTS OF NORTH MISSISSIPPI                        
   PARTS OF NORTHWEST ALABAMA                            

EFFECTIVE THIS SATURDAY 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 85 STATUTE MILES EAST AND WEST
OF A LINE FROM 20 MILES SOUTHEAST OF OXFORD MISSISSIPPI TO 40 MILES
WEST NORTHWEST OF BOWLING GREEN KENTUCKY.

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 65 KNOTS.  A FEW CBS
WITH MAX TOPS TO 520.  MEAN WIND VECTOR 22040.

D...VERY MOIST...UNSTBL AMS HAS MOVED NWD INTO SWRN KY WITH FVRBL
SHEAR PROFILES IN PLACE.  TSTMS HAVE CONTD TO INCR ACRS NRN MS AND
WILL LIKELY BECOME SVR AS THEY MOVE INTO FVRBL LOW LVL CNVRGNC. 
SUPERCELLS AND TORNADOES PSBL WITH THESE STMS.

...HALES

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 1, 2:30 PM CSTTornado WatchSPCAllen, Ballard, Barren, Butler, Caldwell, Calloway and 22 more7 hr
Mar 1, 3:30 PM CSTSevere Thunderstorm WatchSPCFloyd, Knott, Martin, Perry, Pike4 hr
Mar 1, 5:00 PM CSTTornado WatchSPCBolivar, Coahoma, Grenada, Lafayette, Leflore, Panola and 5 more4 hr

Nearby

Tornado Watches in Tennessee, 1997Tornado Watches in Mississippi, 1997Tornado Watches in Kentucky, 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; radar from the NEXRAD Level II archive.