Alert archive / Missouri / Tornado Warnings in 2003

Tornado Warning 9, NWS Kansas City, MO

April 30, 2003Clinton County, Missouri

NWS Kansas City, MO issued this tornado warning at Apr 30, 2003, 8:11 PM CDT for Clinton County, Missouri. It was in force for 19 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
Apr 30, 2003, 8:11 PM CDT (01:11 UTC)
Expired
Apr 30, 2003, 8:30 PM CDT
In force
19 min
Issued by
NWS Kansas City, MO
Area
Counties, with a storm outline in the text

County Clinton County, MO

The radar

The Pleasant Hill radar (KEAX), 83 km from the middle of the area, began a volume at 01:12 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 30, 5:15 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 1.2 hours before the alert went out and 129 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 00:00Z on 2003-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3988 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2003-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
3988 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1381 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
1.0
Supercell composite
10.2

Open this sounding in Storm Lab

The text

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

190 
WFUS53 KEAX 010111
TOREAX
MOC049-010130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
809 PM CDT WED APR 30 2003

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CLINTON COUNTY IN NORTHWEST MISSOURI

* UNTIL 830 PM CDT

* AT 807 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  VERY STRONG ROTATION 3 MILES SOUTHEAST OF LATHROP. THIS 
  DANGEROUS STORM WAS LOCATED NEAR LATHROP...OR 31 MILES NORTHEAST 
  OF KANSAS CITY...MOVING NORTHEAST AT 25 MPH. THIS STORM WILL 
  CROSS INTERSTATE 35 BETWEEN 810 AND 815 PM.  LARGE HAIL AND 
  DESTRUCTIVE THUNDERSTORM WINDS ARE ALSO LIKELY WITH THIS STORM.

* THE TORNADO WILL REMAIN OVER MAINLY RURAL AREAS OF...
  CLINTON COUNTY.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
PLEASANT HILL.

LAT...LON 3962 9423 3947 9423 3947 9449 3961 9448

$$


SEAMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 7:05 PM CDTSevere Thunderstorm WarningEAXBuchanan40 min
Apr 30, 7:14 PM CDTTornado WarningEAXPlatte31 min
Apr 30, 7:31 PM CDTSevere Thunderstorm WarningEAXClinton59 min
Apr 30, 7:31 PM CDTTornado WarningEAXHarrison44 min
Apr 30, 7:36 PM CDTSevere Thunderstorm WarningEAXGentry39 min
Apr 30, 7:36 PM CDTTornado WarningEAXClinton39 min
Apr 30, 7:48 PM CDTTornado WarningEAXMercer57 min
Apr 30, 7:54 PM CDTSevere Thunderstorm WarningEAXAndrew, Buchanan66 min
Apr 30, 8:08 PM CDTTornado WarningEAXBuchanan37 min
Apr 30, 8:17 PM CDTSevere Thunderstorm WarningEAXHarrison58 min
Apr 30, 8:19 PM CDTSevere Thunderstorm WarningEAXCaldwell56 min
Apr 30, 8:21 PM CDTSevere Thunderstorm WarningEAXDeKalb69 min
Apr 30, 8:30 PM CDTTornado WarningEAXPutnam60 min
Apr 30, 8:38 PM CDTSevere Thunderstorm WarningEAXCaldwell37 min
Apr 30, 8:49 PM CDTSevere Thunderstorm WarningEAXMercer56 min
Apr 30, 9:10 PM CDTSevere Thunderstorm WarningEAXClinton50 min
Apr 30, 9:23 PM CDTTornado WarningEAXSchuyler52 min
Apr 30, 9:27 PM CDTSevere Thunderstorm WarningEAXJackson63 min
Apr 30, 9:29 PM CDTSevere Thunderstorm WarningEAXDaviess, DeKalb61 min
Apr 30, 9:41 PM CDTSevere Thunderstorm WarningEAXCaldwell64 min
Apr 30, 10:12 PM CDTSevere Thunderstorm WarningEAXLivingston63 min
Apr 30, 10:41 PM CDTSevere Thunderstorm WarningEAXBates64 min
Apr 30, 10:53 PM CDTSevere Thunderstorm WarningEAXRay52 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; radar from the NEXRAD Level II archive.