Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 3, NWS Lincoln, IL

April 7, 1995Logan County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Apr 7, 1995, 11:04 PM CDT for Logan County, Illinois. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Apr 7, 1995, 11:04 PM CDT (04:04 UTC)
Expired
Apr 7, 1995, 11:30 PM CDT
In force
26 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Logan County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 4.1 hours before the alert went out and 65 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 1995-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 148 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, Lincoln, IL at 00:00Z on 1995-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
148 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
1841 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
353 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KSPI 080406 RRA
SVRSPI
ILC107-080430-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
1104 PM CDT FRI APR 7 1995
 
THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL ILLINOIS
 
   ...EASTERN LOGAN COUNTY
 
AT 11 PM CDT... THUNDERSTORMS PRODUCED WINDS IN EXCESS OF 55 MPH AT
LINCOLN...ALONG WITH PEA-SIZE HAIL.
 
SPRINGFIELD RADAR AT 1103 PM SHOWED A LINE OF THUNDERSTORMS ALONG
INTERSTATE 155 NORTH OF LINCOLN. THESE STORMS WERE MOVING EAST AT 35
MPH.
 
THE STORMS WILL REACH ATLANTA AROUND 1115 PM...BEASON AROUND 1120 PM...
AND CHESTNUT AROUND 1120 PM.
 
THIS IS A DANGEROUS STORM...CAPABLE OF BLOWING DOWN TREES AND
DAMAGING ROOFS AND WINDOWS.  GET INDOORS AND STAY AWAY FROM WINDOWS.
 
$$
GEELHART
 
 
&

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 7, 9:38 PM CDTSevere Thunderstorm WarningILXFulton37 min
Apr 7, 10:05 PM CDTSevere Thunderstorm WarningILXMason45 min

Nearby

Severe Thunderstorm Warnings in Illinois, 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.