Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 72, NWS Indianapolis, IN

May 18, 1995Wayne County, White County, Illinois

NWS Indianapolis, IN issued this severe thunderstorm warning at May 18, 1995, 12:40 AM CDT for Wayne County, White County, Illinois. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
May 18, 1995, 12:40 AM CDT (05:40 UTC)
Expired
May 18, 1995, 1:15 AM CDT
In force
35 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Wayne County, IL, White County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 5.7 hours before the alert went out and 212 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 1995-05-18Temperature 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 1995-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 181 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
484 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
181 m²/s²
0-3 km storm-relative helicity
293 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 KEVV 180541
SVREVV
ILC191-193-180615-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EVANSVILLE IN
1240 AM CDT THU MAY 18 1995
 
THE NATIONAL WEATHER SERVICE IN EVANSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  115 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST ILLINOIS
 
   ...WAYNE COUNTY...WHITE COUNTY
 
AT 1240 AM CDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS 50 MILES
NORTHWEST OF EVANSVILLE NEAR FAIRFIELD ILLINOIS. THESE STORMS WERE
MOVING TO THE NORTHEAST AT 45 MILES AN HOUR AND WILL REACH FAIRFIELD BY
1 AM. IF YOU ARE IN THE PATH OF THESE STORMS MOVE INDOORS.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
 
NIEMEIER

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 18, 2:15 AM CDTFlash Flood WarningINDWabash, White4 hr
May 18, 2:15 AM CDTFlash Flood WarningINDLawrence, Richland4 hr
May 18, 2:15 AM CDTFlash Flood WarningINDEdwards4 hr
May 18, 2:15 AM CDTFlash Flood WarningINDGallatin4 hr
May 18, 2:23 AM CDTFlash Flood WarningINDWayne4 hr
May 18, 2:05 PM CDTSevere Thunderstorm WarningINDClay, Wayne40 min
May 18, 2:45 PM CDTSevere Thunderstorm WarningINDCrawford, Lawrence, Richland, Wabash48 min
May 18, 2:45 PM CDTSevere Thunderstorm WarningINDEdwards48 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.