Alert archive / Missouri / Tornado Warnings in 2003

Tornado Warning 26, NWS Kansas City, MO

May 4, 2003Cass County, Missouri

NWS Kansas City, MO issued this tornado warning at May 4, 2003, 5:46 PM CDT for Cass County, Missouri. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 4, 2003, 5:46 PM CDT (22:46 UTC)
Expired
May 4, 2003, 6:30 PM CDT
In force
44 min
Issued by
NWS Kansas City, MO
Area
Counties, with a storm outline in the text

County Cass County, MO

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 4, 12:45 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 10.8 hours before the alert went out and 123 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, Topeka, KS at 12:00Z on 2003-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 409 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 12:00Z on 2003-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 582 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
409 J/kg
Mixed-layer CIN
-194 J/kg
Mixed-layer LCL
563 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
582 m²/s²
0-3 km storm-relative helicity
841 m²/s²
Significant tornado parameter
0.0
Supercell composite
17.5

Open this sounding in Storm Lab

The text

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

769 
WFUS53 KEAX 042246
TOREAX
MOC037-042330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
543 PM CDT SUN MAY 4 2003

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CASS COUNTY IN WEST CENTRAL MISSOURI

* UNTIL 630 PM CDT

* AT 540 PM CDT...RADAR INDICATES A TORNADO 7 MILES NORTHWEST OF 
  ARCHIE. THIS STORM HAS A HISTORY OF PRODUCING TORNADOES AS IT  
  PRODUCED A TORNADO AT DREXEL AT 525 PM. THE TORNADO WAS MOVING 
  NORTHEAST AT 30 MPH. LARGE HAIL AND DESTRUCTIVE THUNDERSTORM  
  WINDS ARE ALSO LIKELY WITH THIS STORM.

* THIS TORNADIC STORM IS EXPECTED TO BE NEAR...
   ARCHIE BY 550 PM CDT.
   HARRISONVILLE BY 555 PM CDT.
   DAYTON BY 600 PM CDT.
   GARDEN CITY BY 605 PM CDT.
   GUNN CITY BY 615 PM CDT.
   STRASBURG BY 620 PM CDT.

THE TOWN OF EAST LYNNE IS ALSO IN THE PATH OF THIS TORNADO.

LAT...LON 3877 9439 3847 9441 3846 9412 3878 9413

$$

DB

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 4, 3:57 AM CDTSevere Thunderstorm WarningEAXBates33 min
May 4, 3:07 PM CDTSevere Thunderstorm WarningEAXAndrew53 min
May 4, 3:43 PM CDTTornado WarningEAXBuchanan62 min
May 4, 3:50 PM CDTTornado WarningEAXPlatte55 min
May 4, 4:18 PM CDTSevere Thunderstorm WarningEAXChariton, Randolph57 min
May 4, 4:21 PM CDTTornado WarningEAXJackson54 min
May 4, 4:26 PM CDTTornado WarningEAXClay, Clinton64 min
May 4, 4:31 PM CDTTornado WarningEAXPlatte59 min
May 4, 4:59 PM CDTTornado WarningEAXCass61 min
May 4, 5:03 PM CDTTornado WarningEAXRay57 min
May 4, 5:06 PM CDTTornado WarningEAXClay, Clinton24 min
May 4, 5:16 PM CDTTornado WarningEAXJackson44 min
May 4, 5:21 PM CDTTornado WarningEAXBates24 min
May 4, 5:22 PM CDTTornado WarningEAXClay38 min
May 4, 5:47 PM CDTSevere Thunderstorm WarningEAXNodaway28 min
May 4, 5:53 PM CDTTornado WarningEAXRay37 min
May 4, 5:55 PM CDTSevere Thunderstorm WarningEAXAtchison50 min
May 4, 6:10 PM CDTTornado WarningEAXJohnson65 min
May 4, 6:12 PM CDTTornado WarningEAXCarroll63 min
May 4, 6:17 PM CDTSevere Thunderstorm WarningEAXGentry, Nodaway43 min
May 4, 6:19 PM CDTSevere Thunderstorm WarningEAXJackson56 min
May 4, 6:34 PM CDTSevere Thunderstorm WarningEAXDaviess, DeKalb56 min

Nearby

Tornado Warnings in Missouri, 2003Every tornado warning in 2003Tornadoes 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.