Alert archive / Kansas / Tornado Watches in 2001

Tornado Watch 98

April 6, 200132 counties in Kansas

The Storm Prediction Center issued this tornado watch at Apr 6, 2001, 4:15 PM CDT for 32 counties in Kansas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 6, 2001, 4:15 PM CDT (21:15 UTC)
Expired
Apr 6, 2001, 9:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 32 counties

Clark County, KS, Decatur County, KS, Edwards County, KS, Ellis County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Grant County, KS, Gray County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Norton County, KS, Pawnee County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Rush County, KS, Scott County, KS, Seward County, KS, Sheridan County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Trego County, KS, Wichita County, KS

The radar

The Dodge City radar (KDDC), 82 km from the middle of the area, began a volume at 21:19 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

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

IssuedProductOfficeCountiesLasted
Apr 6, 4:35 PM CDTTornado WarningDDCHamilton, Stanton25 min
Apr 6, 4:44 PM CDTSevere Thunderstorm WarningGLDGreeley, Wichita61 min
Apr 6, 5:06 PM CDTSevere Thunderstorm WarningDDCMorton24 min
Apr 6, 5:15 PM CDTSevere Thunderstorm WarningDDCStanton45 min
Apr 6, 5:21 PM CDTSevere Thunderstorm WarningGLDLogan, Wallace54 min
Apr 6, 5:24 PM CDTSevere Thunderstorm WarningGLDCheyenne, Rawlins, Sherman66 min
Apr 6, 5:26 PM CDTSevere Thunderstorm WarningDDCGrant, Stevens64 min
Apr 6, 5:35 PM CDTSevere Thunderstorm WarningDDCKearny40 min
Apr 6, 5:35 PM CDTSevere Thunderstorm WarningGLDThomas55 min
Apr 6, 5:39 PM CDTTornado WarningDDCGrant, Stevens36 min
Apr 6, 5:40 PM CDTSevere Thunderstorm WarningGLDGreeley, Wichita50 min
Apr 6, 5:45 PM CDTTornado WarningGLDThomas45 min
Apr 6, 5:58 PM CDTSevere Thunderstorm WarningDDCFinney, Haskell, Seward47 min
Apr 6, 5:58 PM CDTSevere Thunderstorm WarningDDCScott47 min
Apr 6, 6:13 PM CDTSevere Thunderstorm WarningGLDLogan62 min
Apr 6, 6:20 PM CDTSevere Thunderstorm WarningDDCGray, Meade85 min
Apr 6, 6:25 PM CDTSevere Thunderstorm WarningGLDRawlins, Thomas65 min
Apr 6, 6:29 PM CDTSevere Thunderstorm WarningGLDWichita31 min
Apr 6, 6:39 PM CDTTornado WarningGLDThomas51 min
Apr 6, 6:49 PM CDTSevere Thunderstorm WarningGLDGove, Sheridan56 min
Apr 6, 6:49 PM CDTSevere Thunderstorm WarningGLDDecatur56 min
Apr 6, 6:54 PM CDTSevere Thunderstorm WarningDDCClark, Ford, Hodgeman66 min
Apr 6, 6:54 PM CDTSevere Thunderstorm WarningDDCFinney66 min
Apr 6, 6:56 PM CDTFlash Flood WarningGLDLogan, Thomas2 hr
Apr 6, 7:10 PM CDTFlash Flood WarningGLDRawlins2 hr
Apr 6, 7:56 PM CDTSevere Thunderstorm WarningGLDGraham, Norton64 min

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 9.3 hours before the alert went out and 86 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, Dodge City, at 12:00Z on 2001-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Dodge City, at 12:00Z on 2001-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2143 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
370 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
WWUS9 KMKC 062052
SEL8  

SEL8  
MKC WW 062044
KSZ000-070200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 98
STORM PREDICTION CENTER NORMAN OK
344 PM CDT FRI APR 6 2001

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

   WESTERN KANSAS                             

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 415 PM UNTIL 900
PM CDT.

 ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
 
DAMAGING TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EAST AND WEST
OF A LINE FROM 15 MILES EAST OF LIBERAL KANSAS TO 40 MILES NORTH
NORTHWEST OF HILL CITY KANSAS.

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 95...WW 96...WW 97...

DISCUSSION...SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER FAR
WESTERN KANSAS DURING THE NEXT 2 HOURS AS DYNAMIC FORCING
ASSOCIATED WITH MID/UPPER LEVEL JET STREAK APPROACHES FROM THE
SOUTHWEST.  AIR MASS EAST OF THE DRY LINE IS MOIST AND UNSTABLE
WITH DEW POINTS IN THE 60S AND SBCAPE OF 2500-3000 J/KG.  18Z DDC
SOUNDING AND LATEST VAD/WIND PROFILER DATA INDICATE DEEP LAYER
SHEAR AND HELICITY WILL SUPPORT SUPERCELLS...WITH POTENTIAL FOR A
FEW STRONG TORNADOES.  A SQUALL LINE MAY GRADUALLY DEVELOP DURING
THE EVENING AND MOVE RAPIDLY NEWD WITH INCREASING CHANCE OFR
WIDESPREAD DAMAGING WIND GUSTS. 


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 23050.


...WEISS

;370,1015 395,1012 395,0984 370,0992;

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 6, 2:30 PM CDTTornado WatchSPCClay, Cloud, Ellis, Geary, Jackson, Jewell and 15 more7 hr

Nearby

Tornado Watches in Kansas, 2001Every tornado watch in 2001

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.