Alert archive / Missouri / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 99, NWS St. Louis, MO

May 5, 1996Madison County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 5, 1996, 12:52 PM CDT for Madison County, Missouri. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 5, 1996, 12:52 PM CDT (17:52 UTC)
Expired
May 5, 1996, 1:30 PM CDT
In force
38 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Madison County, MO

The radar

The St Louis radar (KLSX), 139 km from the middle of the area, began a volume at 17:56 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

Little Rock, AR (KLZK), launched 12:00Z, 5.9 hours before the alert went out and 297 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, Little Rock, AR at 12:00Z on 1996-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 802 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, Little Rock, AR at 12:00Z on 1996-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.193958Sfc1 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
802 J/kg
Mixed-layer CIN
-339 J/kg
Mixed-layer LCL
772 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
54 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 051753
SVRSTL
MOC123-051830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1252 PM CDT SUN MAY 5 1996
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  130 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST MISSOURI
 
   ...MADISON COUNTY
 
AT 1250 PM NWS RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS EXTENDING
FROM JUST EAST OF BISMARCK...TO JUST EAST OF IRONTON...TO JUST EAST OF
OF ANNAPOLIS.
 
TOWNS IN THE PATH INCLUDE ROSELLE...FREDERICKTOWN...SACO...MARQUAND...
AND BUCKHORN.
 
THIS STORM HAS A HISTORY OF DAMAGING WINDS WITH TREES AND POWER LINES
DOWNED IN CENTERVILLE IN REYNOLDS COUNTY. SEEK INSIDE SHELTER NOW!
 
JPK
&

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 8:22 AM CDTSevere Thunderstorm WarningLSXMoniteau68 min
May 5, 8:52 AM CDTSevere Thunderstorm WarningLSXCole53 min
May 5, 11:41 AM CDTSevere Thunderstorm WarningLSXCrawford49 min
May 5, 11:59 AM CDTSevere Thunderstorm WarningLSXIron, Washington61 min
May 5, 11:59 AM CDTSevere Thunderstorm WarningLSXReynolds61 min
May 5, 12:39 PM CDTSevere Thunderstorm WarningLSXSaint Francois51 min
May 5, 2:43 PM CDTFlash Flood WarningLSXSainte Genevieve3 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 1996Every severe thunderstorm warning in 1996

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.