Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 27, NWS Lincoln, IL

May 18, 1995Mason County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 18, 1995, 11:16 AM CDT for Mason County, Illinois. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
May 18, 1995, 11:16 AM CDT (16:16 UTC)
Expired
May 18, 1995, 12:00 PM CDT
In force
44 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Mason County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 4.3 hours before the alert went out and 112 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 12:00Z on 1995-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 12:00Z on 1995-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 square meters per square second.1939587897117Sfc1 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
507 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
346 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPIA 181618
SVRPIA
ILC125-181700-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEORIA IL
1116 AM CDT THU MAY 18 1995
 
THE NATIONAL WEATHER SERVICE IN PEORIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING  EFFECTIVE UNTIL NOON CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL ILLINOIS
 
   ...MASON COUNTY
 
AT 1115 PM CDT...THE MASON COUNTY SHERRIF REPORTED GOLF BALL SIZE HAIL 7
MILES SOUTH OF HAVANA. THIS STORM IS MOVING TO THE NORTHEAST AT 30 MPH.
SOME COMMUNTITIES IN THE PATH OF THIS STORM INCLUDE POPLAR CITY AND
EASTON.
 
THIS STORM HAS A HISTORY OF LARGE HAIL. STAY INDOORS, AWAY FROM
WINDOWS!
 
WATERHOUSE

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 12:24 PM CDTSevere Thunderstorm WarningILXLogan51 min
May 18, 1:09 PM CDTSevere Thunderstorm WarningILXMcLean51 min
May 18, 2:31 PM CDTSevere Thunderstorm WarningILXChampaign33 min
May 18, 2:34 PM CDTSevere Thunderstorm WarningILXCumberland33 min
May 18, 2:55 PM CDTFlash Flood WarningILXMacon4 hr

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.