Alert archive / Kansas / Tornado Watches in 2003

Tornado Watch 118

April 15, 200320 counties in Kansas; 8 counties in Oklahoma; 12 counties in Texas

The Storm Prediction Center issued this tornado watch at Apr 15, 2003, 2:10 PM CDT for 20 counties in Kansas; 8 counties in Oklahoma; 12 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 15, 2003, 2:10 PM CDT (19:10 UTC)
Expired
Apr 15, 2003, 7:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 40 counties

Clark County, KS, Comanche County, KS, Edwards County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Lane County, KS, Meade County, KS, Ness County, KS, Pawnee County, KS, Rush County, KS, Scott County, KS, Seward County, KS, Stevens County, KS, Wichita County, KS, Beaver County, OK, Beckham County, OK, Dewey County, OK, Ellis County, OK, Harper County, OK, Roger Mills County, OK, Texas County, OK, Woodward County, OK, Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Dodge City radar (KDDC), 70 km from the middle of the area, began a volume at 19:10 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

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

IssuedProductOfficeCountiesLasted
Apr 15, 3:18 PM CDTSevere Thunderstorm WarningDDCFinney, Lane57 min
Apr 15, 4:00 PM CDTSevere Thunderstorm WarningDDCSeward, Stevens60 min
Apr 15, 4:08 PM CDTSevere Thunderstorm WarningAMABeaver, Texas52 min
Apr 15, 4:09 PM CDTSevere Thunderstorm WarningDDCLane51 min
Apr 15, 4:09 PM CDTSevere Thunderstorm WarningDDCGrant, Kearny66 min
Apr 15, 4:20 PM CDTSevere Thunderstorm WarningDDCFinney, Haskell55 min
Apr 15, 4:22 PM CDTSevere Thunderstorm WarningAMACarson38 min
Apr 15, 4:27 PM CDTSevere Thunderstorm WarningGLDWichita63 min
Apr 15, 4:46 PM CDTSevere Thunderstorm WarningDDCMeade59 min
Apr 15, 4:53 PM CDTSevere Thunderstorm WarningAMADonley, Gray52 min
Apr 15, 4:59 PM CDTSevere Thunderstorm WarningDDCScott61 min
Apr 15, 5:09 PM CDTSevere Thunderstorm WarningAMAWheeler51 min
Apr 15, 5:23 PM CDTTornado WarningAMAWheeler37 min
Apr 15, 5:36 PM CDTSevere Thunderstorm WarningDDCClark54 min
Apr 15, 5:43 PM CDTTornado WarningOUNRoger Mills32 min
Apr 15, 5:44 PM CDTTornado WarningAMAHemphill31 min
Apr 15, 5:54 PM CDTSevere Thunderstorm WarningDDCNess51 min
Apr 15, 6:10 PM CDTTornado WarningOUNRoger Mills35 min
Apr 15, 6:35 PM CDTSevere Thunderstorm WarningOUNBeckham40 min
Apr 15, 6:44 PM CDTTornado WarningOUNDewey, Roger Mills46 min
Apr 15, 6:47 PM CDTTornado WarningOUNBeckham28 min
Apr 15, 6:53 PM CDTSevere Thunderstorm WarningAMACollingsworth37 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 7.2 hours before the alert went out and 72 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 2003-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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 12:00Z on 2003-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -102 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
10 J/kg
Mixed-layer CIN
-518 J/kg
Mixed-layer LCL
2463 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-102 m²/s²
0-3 km storm-relative helicity
-32 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.

000 
WWUS20 KWNS 151911
SEL8
SPC WW 151910
KSZ000-OKZ000-TXZ000-160000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 118
STORM PREDICTION CENTER NORMAN OK
210 PM CDT TUE APR 15 2003

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

   SOUTHWEST KANSAS                             
   WESTERN OKLAHOMA                           
   TEXAS PANHANDLE                              

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 210 PM UNTIL 700
PM CDT.

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

THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES EAST AND WEST
OF A LINE FROM 50 MILES NORTH NORTHEAST OF GARDEN CITY KANSAS TO 70
MILES WEST SOUTHWEST OF CLINTON OKLAHOMA.

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.

DISCUSSION...HIGH BASED CONVECTION OVER NORTHEAST NM IS FORECAST TO
TRACK NORTHEASTWARD ACROSS THE TX PANHANDLE AND INTO SOUTHWEST
KS/NORTHWEST OK THIS AFTERNOON.  THESE STORMS...ALONG WITH OTHER
DEVELOPMENT...ARE EXPECTED TO INTENSIFY AND BECOME SUPERCELLULAR. 
FAVORABLE VERTICAL SHEAR PROFILES AND MODERATE INSTABILITY SUGGEST
THE POTENTIAL FOR LARGE HAIL AND DAMAGING WINDS IN STRONGEST CELLS. 
THREAT OF ISOLATED TORNADOES WILL ALSO INCREASE BY LATE AFTERNOON
AS STORMS MOVE INTO GREATER LOW LEVEL MOISTURE IN EASTERN HALF OF
WW AREA.

AVIATION...TORNADOES AND 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

383,0985 345,0990 345,1014 383,1014

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 15, 12:41 PM CDTMesoscale DiscussionSPCClark, Finney, Ford, Grant, Gray, Haskell and 7 more3 hr
Apr 15, 3:32 PM CDTMesoscale DiscussionSPCClark, Comanche, Edwards, Ford, Kiowa118 min
Apr 15, 3:45 PM CDTTornado WatchSPCDecatur, Ellis, Gove, Graham, Logan, Norton and 10 more5 hr
Apr 15, 5:55 PM CDTMesoscale DiscussionSPCBarber, Clark, Comanche, Edwards, Ford, Gray and 6 more65 min
Apr 15, 6:30 PM CDTTornado WatchSPCBarber, Barton, Clark, Comanche, Edwards, Ford and 16 more5 hr
Apr 15, 6:57 PM CDTMesoscale DiscussionSPCDecatur, Graham, Norton, Osborne, Phillips, Rooks and 3 more93 min
Apr 15, 4:36 PM CDTMesoscale DiscussionSPCHarmon, Jackson, Tillman84 min
Apr 15, 5:00 PM CDTTornado WatchSPCComanche, Greer, Harmon, Jackson, Kiowa, Tillman6 hr
Apr 15, 12:12 PM CDTMesoscale DiscussionSPCBailey, Castro, Cochran, Deaf Smith, Gaines, Hale and 9 more2 hr

Nearby

Tornado Watches in Kansas, 2003Tornado Watches in Texas, 2003Tornado Watches in Oklahoma, 2003Every tornado watch in 2003

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.