Alert archive / Illinois / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 90, NWS St. Louis, MO

May 5, 1996Bond County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at May 5, 1996, 2:42 AM CDT for Bond County, Illinois. It was in force for 48 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, 2:42 AM CDT (07:42 UTC)
Expired
May 5, 1996, 3:30 AM CDT
In force
48 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Bond County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 7.7 hours before the alert went out and 158 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 1996-05-05Temperature 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 1996-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.1939587897Sfc1 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
801 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
212 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 050743
SVRSTL
ILC005-050830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
242 AM CDT SUN MAY 5 1996
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL ILLINOIS
 
   ...BOND COUNTY
 
AT 241 AM...RADAR INDICATED A SEVERE THUNDERSTORM OVER NORTHERN BOND
COUNTY...10 MILES NORTH NORTHEAST OF GREENVILLE. THE THUNDERSTORM WAS
MOVING SOUTHEAST AT 30 MPH. THE STORM WILL MOVE THROUGH MULBERRY GROVE
BY 250 AM AND SMITHBORO BY 305 AM.
 
 
 
JPK/DLF

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 2:15 AM CDTSevere Thunderstorm WarningLSXMontgomery45 min
May 5, 3:02 AM CDTSevere Thunderstorm WarningLSXFayette28 min
May 5, 3:29 AM CDTSevere Thunderstorm WarningLSXFayette31 min
May 5, 2:43 PM CDTFlash Flood WarningLSXRandolph3 hr

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.