Alert archive / Missouri / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 39, NWS St. Louis, MO

April 16, 1995Saint Charles County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 16, 1995, 11:47 PM CDT for Saint Charles County, Missouri. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Apr 16, 1995, 11:47 PM CDT (04:47 UTC)
Expired
Apr 17, 1995, 12:36 AM CDT
In force
49 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Saint Charles County, MO

The radar

The St Louis radar (KLSX), 9 km from the middle of the area, began a volume at 04:31 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

Lincoln, IL (KILX), launched 00:00Z, 4.8 hours before the alert went out and 234 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, Lincoln, IL at 00:00Z on 1995-04-17Temperature 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, Lincoln, IL at 00:00Z on 1995-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 square meters per square second.1939587897117Sfc1 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
2048 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
269 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 
TTAA00 KSTL 170448
SVRSTL
MOC183-170545-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1147 PM CDT SUN APR 16 1995
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSOURI
 
   ...NORTHERN ST CHARLES COUNTY
 
AT 1145 PM CDT...NWS DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM OVER
NORTHERN WARREN AND CENTRAL LINCOLN COUNTIES IN EAST CENTRAL MISSOURI.
 
THE SEVERE THUNDERSTORM WAS MOVING TO THE EAST AT 25 MPH AND WILL MOVE
THROUGH THE TOWNS OF WENTSVILLE...O FALLON AND ST. CHARLES BETWEEN
1155 PM AND 1230 AM CDT.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
DM / RP

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 9:10 PM CDTSevere Thunderstorm WarningLSXBoone50 min
Apr 16, 9:54 PM CDTSevere Thunderstorm WarningLSXAudrain, Callaway66 min
Apr 16, 9:57 PM CDTSevere Thunderstorm WarningLSXBoone33 min
Apr 16, 10:51 PM CDTSevere Thunderstorm WarningLSXMontgomery54 min
Apr 16, 11:19 PM CDTSevere Thunderstorm WarningLSXLincoln56 min
Apr 16, 11:19 PM CDTSevere Thunderstorm WarningLSXWarren47 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; radar from the NEXRAD Level II archive.