Alert archive / Kansas / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 474

June 20, 20004 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 20, 2000, 10:00 PM MDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 20, 2000, 10:00 PM MDT (04:00 UTC)
Expired
Jun 21, 2000, 4:00 AM MDT
In force
6 hr
Issued by
the Storm Prediction Center
All 38 counties

Baca County, CO, Bent County, CO, Prowers County, CO, Barber County, KS, Clark County, KS, Comanche County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Haskell County, KS, Kiowa County, KS, Meade County, KS, Morton County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Alfalfa County, OK, Beaver County, OK, Blaine County, OK, Cimarron County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Harper County, OK, Major County, OK, Roger Mills County, OK, Texas County, OK, Woods County, OK, Woodward County, OK, Dallam County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Roberts County, TX, Sherman County, TX

The radar

The Dodge City radar (KDDC), 131 km from the middle of the area, began a volume at 04:00 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

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

IssuedProductOfficeCountiesLasted
Jun 20, 10:16 PM MDTSevere Thunderstorm WarningAMADallam59 min
Jun 20, 10:36 PM MDTSevere Thunderstorm WarningAMACimarron54 min
Jun 20, 11:05 PM MDTSevere Thunderstorm WarningDDCMorton40 min
Jun 20, 11:16 PM MDTSevere Thunderstorm WarningAMATexas59 min
Jun 20, 11:36 PM MDTSevere Thunderstorm WarningDDCStevens39 min
Jun 21, 12:20 AM MDTSevere Thunderstorm WarningDDCStevens25 min
Jun 21, 12:22 AM MDTSevere Thunderstorm WarningAMABeaver, Texas58 min
Jun 21, 12:44 AM MDTSevere Thunderstorm WarningDDCSeward46 min
Jun 21, 12:46 AM MDTSevere Thunderstorm WarningAMAOchiltree29 min
Jun 21, 12:57 AM MDTSevere Thunderstorm WarningOUNHarper48 min
Jun 21, 1:06 AM MDTSevere Thunderstorm WarningAMALipscomb39 min
Jun 21, 1:17 AM MDTSevere Thunderstorm WarningAMABeaver28 min
Jun 21, 1:44 AM MDTSevere Thunderstorm WarningAMABeaver16 min
Jun 21, 1:44 AM MDTSevere Thunderstorm WarningOUNEllis, Harper46 min
Jun 21, 2:26 AM MDTSevere Thunderstorm WarningOUNHarper, Woods, Woodward64 min
Jun 21, 3:27 AM MDTSevere Thunderstorm WarningOUNMajor, Woods48 min

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 4.0 hours before the alert went out and 137 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 00:00Z on 2000-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 101 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, Dodge City, at 00:00Z on 2000-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
101 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
2648 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
153 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.

253 
WWUS9 KMKC 210349
SEL4  

SEL4  
MKC WW 210349
COZ000-KSZ000-OKZ000-TXZ000-211000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 474
STORM PREDICTION CENTER NORMAN OK
1049 PM CDT TUE JUN 20 2000

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

   SOUTHEAST COLORADO                           
   SOUTHWEST KANSAS                             
   NORTHWEST OKLAHOMA                           
   THE TEXAS PANHANDLE                              

EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 1100 PM
UNTIL 500 AM CDT.

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 75 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 60 MILES SOUTH SOUTHEAST OF MEDICINE
LODGE KANSAS TO 65 MILES WEST OF  KANSAS.

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...THIS SEVERE THUNDERSTORM WATCH REPLACES
SEVERE THUNDERSTORM WATCH NUMBER 472.  WATCH NUMBER 472 WILL NOT BE
IN EFFECT AFTER 1100 PM CDT.  CONTINUE...WW 470...WW 471...WW
473...

DISCUSSION...THUNDERSTORMS DEVELOPING IN DEEP MIXED ENVIRONMENT OF
SE CO/NE NM EXPECTED TO MOVE/DEVELOP ESE ALONG NEARLY STATIONARY
FRONTAL ZONE ATTM OVER SW KS.  AREAS PROFILER/VWP DATA SHOW AMPLE
LOW TO MID LEVEL SHEAR TO SUPPORT SUPERCELLS.  STORM INITIATION
LIKELY TO BE FOSTERED BY DEVELOPING SLY LOW LEVEL JET OVER THE SRN
PLAINS /WITH WIND SPEEDS ON THE ORDER OF 40 KTS/...THAT WILL
TRANSPORT VERY MOIST AIR NWD TO VICINITY OF FRONT.   ENVIRONMENT
FARTHER E ALONG FRONT /AREA BETWEEN ICT AND TUL/...APPEARS MORE
FAVORABLE FOR BACK-BUILDING STORMS WITH HEAVY RAIN. 

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 28030.

...CORFIDI

380,1030 373,0981 352,0981 355,1030

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 20, 6:30 PM MDTSevere Thunderstorm WatchSPCAllen, Anderson, Barber, Butler, Chautauqua, Comanche and 12 more6 hr

Nearby

Severe Thunderstorm Watches in Kansas, 2000Severe Thunderstorm Watches in Oklahoma, 2000Severe Thunderstorm Watches in Texas, 2000Every 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; radar from the NEXRAD Level II archive.