Alert archive / Kansas / Tornado Watches in 2003

Tornado Watch 119

April 15, 200316 counties in Kansas; 15 counties in Nebraska

The Storm Prediction Center issued this tornado watch at Apr 15, 2003, 3:45 PM CDT for 16 counties in Kansas; 15 counties in Nebraska. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 15, 2003, 3:45 PM CDT (20:45 UTC)
Expired
Apr 15, 2003, 9:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 31 counties

Decatur County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Logan County, KS, Norton County, KS, Osborne County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Rush County, KS, Sheridan County, KS, Sherman County, KS, Smith County, KS, Thomas County, KS, Trego County, KS, Buffalo County, NE, Dawson County, NE, Dundy County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Kearney County, NE, Lincoln County, NE, Perkins County, NE, Phelps County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 103 km from the middle of the area, began a volume at 20:47 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

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

IssuedProductOfficeCountiesLasted
Apr 15, 4:11 PM CDTSevere Thunderstorm WarningGLDSheridan49 min
Apr 15, 4:13 PM CDTSevere Thunderstorm WarningGLDRawlins62 min
Apr 15, 4:21 PM CDTSevere Thunderstorm WarningGLDGove54 min
Apr 15, 4:45 PM CDTSevere Thunderstorm WarningGIDHarlan45 min
Apr 15, 4:47 PM CDTSevere Thunderstorm WarningGLDDecatur, Norton58 min
Apr 15, 4:51 PM CDTSevere Thunderstorm WarningGLDHitchcock54 min
Apr 15, 4:57 PM CDTSevere Thunderstorm WarningGIDFurnas33 min
Apr 15, 5:05 PM CDTSevere Thunderstorm WarningGLDThomas55 min
Apr 15, 5:13 PM CDTSevere Thunderstorm WarningGLDSherman62 min
Apr 15, 5:35 PM CDTSevere Thunderstorm WarningGLDGove55 min
Apr 15, 5:41 PM CDTSevere Thunderstorm WarningGLDLogan19 min
Apr 15, 5:45 PM CDTSevere Thunderstorm WarningGLDHitchcock, Red Willow60 min
Apr 15, 5:58 PM CDTSevere Thunderstorm WarningGLDDecatur, Rawlins, Thomas62 min
Apr 15, 6:01 PM CDTSevere Thunderstorm WarningLBFFrontier, Hayes44 min
Apr 15, 6:03 PM CDTSevere Thunderstorm WarningLBFFrontier, Hayes42 min
Apr 15, 6:47 PM CDTSevere Thunderstorm WarningGLDHitchcock, Red Willow58 min
Apr 15, 7:05 PM CDTSevere Thunderstorm WarningGLDGraham, Norton55 min
Apr 15, 7:40 PM CDTSevere Thunderstorm WarningGIDDawson, Gosper50 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.8 hours before the alert went out and 178 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, N. Platte/Lee Bi, NE at 12:00Z on 2003-04-15Temperature 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, N. Platte/Lee Bi, NE at 12:00Z on 2003-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.193958Sfc1 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
3632 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
131 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 152045
SEL9
SPC WW 152045
KSZ000-NEZ000-160200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 119
STORM PREDICTION CENTER NORMAN OK
345 PM CDT TUE APR 15 2003

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

   NORTHWEST KANSAS                             
   SOUTHWEST NEBRASKA                           

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 345 PM UNTIL 900
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 80 STATUTE MILES EAST AND WEST
OF A LINE FROM 65 MILES SOUTH SOUTHWEST OF HILL CITY KANSAS TO 65
MILES NORTH NORTHEAST OF MCCOOK NEBRASKA.

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 118...

DISCUSSION...SCATTERED THUNDERSTORMS ARE INCREASING OVER NORTHWEST
KS AND SOUTHWEST NEB.  VERTICAL SHEAR PROFILES ARE FORECAST TO
INCREASE RAPIDLY THIS EVENING OVER THIS REGION...AS LOW LEVEL
MOISTURE AND INSTABILITY DEVELOPS NORTHWESTWARD.  LARGE HAIL AND
DAMAGING WIND WILL BE THE INITIAL THREAT...WITH AN INCREASING
POTENTIAL FOR ISOLATED TORNADOES THROUGH THE EVENING.

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

383,1014 410,1013 410,0983 383,0984

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, 2:10 PM CDTTornado WatchSPCClark, Comanche, Edwards, Finney, Ford, Grant and 14 more5 hr
Apr 15, 3:32 PM CDTMesoscale DiscussionSPCClark, Comanche, Edwards, Ford, Kiowa118 min
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, 4:46 PM CDTMesoscale DiscussionSPCAntelope, Blaine, Boone, Boyd, Brown, Cedar and 19 more89 min
Apr 15, 5:15 PM CDTSevere Thunderstorm WatchSPCAntelope, Blaine, Boone, Boyd, Brown, Cedar and 25 more6 hr

Nearby

Tornado Watches in Kansas, 2003Tornado Watches in Nebraska, 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.