Alert archive / Missouri / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 21, NWS Kansas City, MO

April 15, 1994Audrain County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Apr 15, 1994, 2:19 AM CDT for Audrain County, Missouri. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Apr 15, 1994, 2:19 AM CDT (07:19 UTC)
Expired
Apr 15, 1994, 3:00 AM CDT
In force
41 min
Issued by
NWS Kansas City, MO
Area
Whole counties

County Audrain County, MO

The radar

The St Louis radar (KLSX), 116 km from the middle of the area, began a volume at 07:20 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 nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 7.3 hours before the alert went out and 309 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, Springfield, MO at 00:00Z on 1994-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1188 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, Springfield, MO at 00:00Z on 1994-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 188 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
1188 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
1725 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
188 m²/s²
0-3 km storm-relative helicity
322 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 150720
SVRCOU
MOC007-150800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
219 AM CDT FRI APR 15 1994
 
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSOURI
 
   ...NORTHERN AUDRAIN COUNTY
 
AT 220 AM A SEVERE THUNDERSTORM WAS 15 MILES NORTHWEST OF MEXICO
MOVING TO THE EAST AT 35 MILES AN HOUR. THIS THUNDERSTORM WILL
AFFECT THE COMMUNITIES OFF ROWENA...MOLINO AND VANDALIA.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OBR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
LA GREE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 11:36 PM CDTSevere Thunderstorm WarningEAXPlatte24 min
Apr 14, 11:45 PM CDTSevere Thunderstorm WarningEAXClay45 min
Apr 14, 11:45 PM CDTSevere Thunderstorm WarningEAXClinton22 min
Apr 14, 11:54 PM CDTSevere Thunderstorm WarningEAXMercer51 min
Apr 15, 12:13 AM CDTSevere Thunderstorm WarningEAXRay62 min
Apr 15, 12:20 AM CDTSevere Thunderstorm WarningEAXJackson40 min
Apr 15, 12:56 AM CDTSevere Thunderstorm WarningEAXChariton49 min
Apr 15, 1:18 AM CDTSevere Thunderstorm WarningEAXBates42 min
Apr 15, 1:26 AM CDTSevere Thunderstorm WarningEAXMacon, Randolph49 min
Apr 15, 1:50 AM CDTSevere Thunderstorm WarningEAXHenry, St. Clair40 min
Apr 15, 2:01 AM CDTTornado WarningEAXHenry29 min
Apr 15, 2:32 AM CDTSevere Thunderstorm WarningEAXBenton, Morgan58 min
Apr 15, 2:32 AM CDTSevere Thunderstorm WarningEAXHoward, Randolph58 min
Apr 15, 2:32 AM CDTSevere Thunderstorm WarningEAXCooper58 min
Apr 15, 2:34 AM CDTTornado WarningEAXBenton26 min
Apr 15, 2:45 AM CDTTornado WarningEAXMorgan30 min
Apr 15, 2:54 AM CDTTornado WarningEAXMoniteau36 min
Apr 15, 2:59 AM CDTSevere Thunderstorm WarningEAXAudrain, Boone61 min
Apr 15, 3:23 AM CDTSevere Thunderstorm WarningEAXCallaway, Cole67 min
Apr 15, 3:29 AM CDTTornado WarningEAXBoone, Cole31 min
Apr 15, 3:46 AM CDTTornado WarningEAXCallaway29 min
Apr 15, 3:49 AM CDTSevere Thunderstorm WarningEAXMaries, Pulaski41 min
Apr 15, 4:00 AM CDTTornado WarningEAXOsage30 min
Apr 15, 4:08 AM CDTTornado WarningEAXGasconade37 min
Apr 15, 4:14 AM CDTSevere Thunderstorm WarningEAXMontgomery61 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1994Every severe thunderstorm warning in 1994

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.