Alert archive / Illinois / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 73, NWS St. Louis, MO

May 2, 1996Saint Clair County, Washington County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at May 2, 1996, 11:02 PM CDT for Saint Clair County, Washington County, Illinois. It was in force for 43 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 2, 1996, 11:02 PM CDT (04:02 UTC)
Expired
May 2, 1996, 11:45 PM CDT
In force
43 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Saint Clair County, IL, Washington County, IL

The radar

The St Louis radar (KLSX), 94 km from the middle of the area, began a volume at 04:06 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, 4.0 hours before the alert went out and 214 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 1996-05-03Temperature 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 1996-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 153 square meters per square second.1939587897117136Sfc1 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
1873 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
153 m²/s²
0-3 km storm-relative helicity
532 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 030403
SVRSTL
ILC189-163-030445-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1102 PM CDT THU MAY 2 1996
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL ILLINOIS
 
   ...WASHINGTON COUNTY
 
IN SOUTHWEST ILLINOIS
 
   ...SOUTHEASTERN ST. CLAIR COUNTY
 
AT 11 PM...A SEVERE THUNDERSTORM WAS OCCURRING OVER SOUTHEAST ST CLAIR
COUNTY...NEAR MARISSA. DIME SIZED HAIL WAS REPORTED WITH THIS STORM AT
11 PM.
 
THE STORM WAS MOVING EAST-SOUTHEAST AT 30 MPH...AND WILL BE AFFECTING
LIVELY GROVE AND NASHVILLE.
 
THIS STORM HAS A HISTORY OF DAMAGING HAIL. STAY INSIDE AND AWAY
FROM WINDOWS.
 
&
 
TRUETT

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 10:22 PM CDTSevere Thunderstorm WarningLSXMonroe, Saint Clair38 min
May 2, 10:56 PM CDTSevere Thunderstorm WarningLSXMonroe, Randolph49 min
May 3, 4:11 PM CDTSevere Thunderstorm WarningLSXCalhoun34 min
May 3, 4:11 PM CDTSevere Thunderstorm WarningLSXJersey34 min
May 3, 4:42 PM CDTSevere Thunderstorm WarningLSXJersey, Madison48 min
May 3, 4:59 PM CDTSevere Thunderstorm WarningLSXClinton46 min
May 3, 5:09 PM CDTTornado WarningLSXMadison36 min
May 3, 5:30 PM CDTSevere Thunderstorm WarningLSXBond, Clinton45 min
May 3, 6:03 PM CDTSevere Thunderstorm WarningLSXMarion42 min

Nearby

Severe Thunderstorm Warnings in Illinois, 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.