Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 29, NWS Lincoln, IL

May 18, 1995McLean County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 18, 1995, 1:09 PM CDT for McLean County, Illinois. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
May 18, 1995, 1:09 PM CDT (18:09 UTC)
Expired
May 18, 1995, 2:00 PM CDT
In force
51 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County McLean County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.2 hours before the alert went out and 43 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 181811
SVRPIA
ILC113-181900-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEORIA IL
109 PM CDT THU MAY 18 1995
 
THE NATIONAL WEATHER SERVICE IN PEORIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING  EFFECTIVE UNTIL  200 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL ILLINOIS
 
   ...SOUTHERN MCLEAN COUNTY
 
AT 107 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM MOVING INTO
SOUTHERN MCLEAN COUNTY. THIS STORM IS MOVING TO THE EAST NORTHEAST AT 35
MPH. SOME COMMUNITIES IN THE PATH OF THIS STORM INCLUDE HEYWORTH...LE
ROY...AND SAYBROOK.
 
THIS STORM HAS A HISTORY OF DAMAGING WIND AND LARGE HAIL. GO INSIDE A ST
DBUILDING AND STAY AWAY FROM WINDOWS^!
 
WATERHOUSE

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 11:16 AM CDTSevere Thunderstorm WarningILXMason44 min
May 18, 12:24 PM CDTSevere Thunderstorm WarningILXLogan51 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.