Alert archive / Missouri / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 211, NWS St. Louis, MO

July 29, 1996Crawford County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jul 29, 1996, 3:29 AM CDT for Crawford County, Missouri. It was in force for 46 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
Jul 29, 1996, 3:29 AM CDT (08:29 UTC)
Expired
Jul 29, 1996, 4:15 AM CDT
In force
46 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Crawford County, MO

The radar

The St Louis radar (KLSX), 97 km from the middle of the area, began a volume at 08:33 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 (KSGF), launched 00:00Z, 8.5 hours before the alert went out and 251 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 1996-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1526 joules per kilogram.LCLEL10008507005003002001001 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 1996-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
1526 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1594 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 290830
SVRSTL
MOC055-290915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
329 AM CDT MON JUL 29 1996
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSOURI
 
   ...CRAWFORD COUNTY
 
AT 325 AM...WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM ALONG
THE CRAWFORD-PHELPS COUNTY LINE...ABOUT 10 MILES NORTHWEST OF
STEELVILLE.
 
THE STORM WAS MOVING SOUTHEAST AT 25 MPH...AND WILL BE AFFECTING THE
STEELVILLE AREA BETWEEN 340 AND 4 AM.
 
THIS IS A DANGEROUS STORM! BE PREPARED FOR DAMAGING WINDS...HAIL
AND DEADLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 8:55 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis50 min
Jul 28, 10:57 PM CDTSevere Thunderstorm WarningLSXCity of Saint Louis63 min
Jul 29, 1:43 AM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis32 min
Jul 29, 3:20 AM CDTSevere Thunderstorm WarningLSXFranklin, Saint Charles, Warren25 min

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.