Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 6, NWS Lincoln, IL

April 9, 1995Logan County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Apr 9, 1995, 11:52 PM CDT for Logan County, Illinois. It was in force for 38 min.

The area

The counties it named.

The facts

Issued
Apr 9, 1995, 11:52 PM CDT (04:52 UTC)
Expired
Apr 10, 1995, 12:30 AM CDT
In force
38 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Logan County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 4.9 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 1995-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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, Lincoln, IL at 00:00Z on 1995-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.19395878Sfc1 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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
508 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
425 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSPI 100453 RRA
SVRSPI
ILC107-100530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
1152 PM CDT SUN APR 9 1995
 
THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL ILLINOIS
 
   ...LOGAN COUNTY
 
AT 1150 PM CDT...RADAR INDICATED TWO SEVERE THUNDERSTORMS IN LOGAN
COUNTY...ONE 25 MILES NORTHEAST OF SPRINGFIELD JUST WEST OF MOUNT
PULASKI...AND ONE 20 MILES NORTHEAST OF SPRINGFIELD NEAR BROADWELL.
THESE STORMS WERE MOVING NORTHEAST AT 25 MPH.
 
THE STORMS WILL REACH MOUNT PULASKI BY 1155 PM...LINCOLN BY 1215
AM...AND ATLANTA BY 1225 PM.
 
THIS IS A DANGEROUS STORM.  TAKE COVER IMMEDIATELY.  IF YOU ARE
IN ITS PATH...PREPARE FOR DAMAGING WINDS IN EXCESS OF 55 MPH...
LARGE HAIL...AND DEADLY LIGHTNING.
 
$$
GEELHART

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 10:46 PM CDTSevere Thunderstorm WarningILXSchuyler44 min
Apr 9, 11:43 PM CDTSevere Thunderstorm WarningILXMason47 min
Apr 10, 1:17 AM CDTSevere Thunderstorm WarningILXFulton43 min
Apr 10, 3:11 AM CDTSevere Thunderstorm WarningILXFulton49 min
Apr 10, 3:47 AM CDTSevere Thunderstorm WarningILXFulton58 min
Apr 10, 5:29 AM CDTSevere Thunderstorm WarningILXSchuyler61 min
Apr 10, 5:36 AM CDTSevere Thunderstorm WarningILXChampaign54 min
Apr 10, 10:14 AM CDTSevere Thunderstorm WarningILXKnox22 min
Apr 10, 12:45 PM CDTSevere Thunderstorm WarningILXCass, Morgan45 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.