Alert archive / Kentucky / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 40

February 18, 200028 counties in Kentucky; Montgomery County, Robertson County, Tennessee

The Storm Prediction Center issued this severe thunderstorm watch at Feb 18, 2000, 4:15 PM CST for 28 counties in Kentucky; Montgomery County, Robertson County, Tennessee. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Feb 18, 2000, 4:15 PM CST (22:15 UTC)
Expired: Feb 18, 2000, 8:00 PM CST
In force: 4 hr
Issued by: the Storm Prediction Center

All 30 counties

Breckinridge County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Edmonson County, KY, Graves County, KY, Grayson County, KY, Hardin County, KY, Hart County, KY, Henderson County, KY, Hopkins County, KY, Larue County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McLean County, KY, Muhlenberg County, KY, Nelson County, KY, Ohio County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Warren County, KY, Webster County, KY, Montgomery County, TN, Robertson 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
Feb 18, 5:58 PM CST	Severe Thunderstorm Warning	LMK	Warren	17 min
Feb 18, 6:02 PM CST	Tornado Warning	OHX	Montgomery	43 min
Feb 18, 6:05 PM CST	Severe Thunderstorm Warning	LMK	Logan, Warren	35 min
Feb 18, 6:42 PM CST	Tornado Warning	OHX	Robertson	33 min

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.3 hours before the alert went out and 128 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: 4 J/kg
Mixed-layer CIN: -162 J/kg
Mixed-layer LCL: 608 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 541 m²/s²
0-3 km storm-relative helicity: 683 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

700 
WWUS9 KMKC 182148
SEL0  

SEL0  
MKC WW 182148
KYZ000-190200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 40
STORM PREDICTION CENTER NORMAN OK
348 PM CST FRI FEB 18 2000

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

   WESTERN AND CENTRAL KENTUCKY                           

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 415 PM UNTIL 800
PM CST.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 70 STATUTE MILES
EAST AND WEST OF A LINE FROM 20 MILES SOUTHWEST OF FORT CAMPBELL
KENTUCKY TO 35 MILES EAST NORTHEAST OF OWENSBORO 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.

OTHER WATCH INFORMATION...  CONTINUE...WW 38...WW 39...

DISCUSSION...THUNDERSTORMS HAVE BEEN INCREASING ALONG SURFACE COLD
FRONT OVER WESTERN KENTUCKY.  THESE STORMS WILL MOVE EASTWARD INTO
CENTRAL KY DURING THE NEXT SEVERAL HOURS WITH A THREAT OF DAMAGING
WINDS AND HAIL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.  MEAN STORM
MOTION VECTOR 24035.


...HART

362,0885 375,0875 375,0851 362,0862

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 18, 2:00 PM CST	Tornado Watch	SPC	Carroll, Crockett, Dyer, Fayette, Gibson, Hardeman and 9 more	5 hr
Feb 18, 5:30 PM CST	Tornado Watch	SPC	Bedford, Benton, Cannon, Cheatham, Chester, Clay and 30 more	5 hr

Nearby

Severe Thunderstorm Watches in Kentucky, 2000 Severe Thunderstorm Watches in Tennessee, 2000 Every severe thunderstorm watch in 2000

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.