Alert archive / Missouri / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 13, NWS St. Louis, MO

April 9, 1995Clark County, Lewis County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 9, 1995, 11:16 PM CDT for Clark County, Lewis County, Missouri. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Apr 9, 1995, 11:16 PM CDT (04:16 UTC)
Expired
Apr 10, 1995, 12:00 AM CDT
In force
44 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Clark County, MO, Lewis County, MO

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 4.3 hours before the alert went out and 184 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, Davenport, at 00:00Z on 1995-04-10Temperature 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, Davenport, at 00:00Z on 1995-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1534 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
622 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 100419 RRA
SVRSTL
MOC045-111-100500-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1116 PM CDT SUN APR 9 1995
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST MISSOURI
 
   ...CLARK COUNTY...NORTHERN LEWIS COUNTY
 
AT 1110 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM JUST NORTHWEST OF MONTICELLO MISSOURI. THE SEVERE
THUNDERSTORM WAS MOVING NORTHEAST AT 25 MILES AND SHOULD AFFECT THE
TOWNS OF ST. PATRICK...GREGORY LANDING AND ALEXANDRIA.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
IN ADDITION THE SEVERE THUNDERSTORM WARNING FOR ADAMS COUNTY
HAS EXPIRED.
 
RP/ST

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 9, 8:33 PM CDTSevere Thunderstorm WarningLSXPhelps42 min
Apr 9, 10:03 PM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade42 min
Apr 9, 10:26 PM CDTSevere Thunderstorm WarningLSXLewis49 min
Apr 10, 10:54 AM CDTSevere Thunderstorm WarningLSXCole51 min
Apr 10, 10:56 AM CDTSevere Thunderstorm WarningLSXAudrain49 min
Apr 10, 11:16 AM CDTSevere Thunderstorm WarningLSXMonroe44 min
Apr 10, 5:42 PM CDTSevere Thunderstorm WarningLSXBoone, Callaway48 min
Apr 10, 6:40 PM CDTSevere Thunderstorm WarningLSXWarren50 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1995Every severe thunderstorm warning in 1995

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.