Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 145, NWS St. Louis, MO

June 21, 1995Effingham County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 21, 1995, 6:38 PM CDT for Effingham County, Illinois. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
Jun 21, 1995, 6:38 PM CDT (23:38 UTC)
Expired
Jun 21, 1995, 7:15 PM CDT
In force
37 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Effingham County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.6 hours before the alert went out and 121 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 1995-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 497 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 12:00Z on 1995-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939Sfc1 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
497 J/kg
Mixed-layer CIN
-263 J/kg
Mixed-layer LCL
1337 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 212340 RRA
SVRSTL
ILC049-220015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
638 PM CDT WED JUN 21 1995
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL ILLINOIS
 
   ...NORTHERN EFFINGHAM COUNTY
 
AT 637 PM...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM ABOUT 15 MILES NORTH OF EFFINGHAM.
 
THE STORM WAS MOVING WEST-SOUTHWEST AT 35 MILES AN HOUR...AND WILL BE
AFFECTING NORTHERN SECTIONS OF EFFINGHAM COUNTY...ESPECIALLY AREAS TO
THE NORTH AND WEST OF EFFINGHAM...INCLUDING THE TOWNS OF MOCCASIN AND
BEECHER CITY.
 
THIS STORM HAS A HISTORY OF DAMAGING WINDS. SEEK INSIDE SHELTER
NOW!
 
TRUETT

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 21, 6:15 PM CDT, 23 minutes before
ILZ066-220000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
615 PM CDT WED JUN 21 1995

...STRONG THUNDERSTORMS HEADING FOR THE EFFINGHAM AREA...

AT 615 PM...WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS ABOUT 25 MILES NORTHEAST OF EFFINGHAM.  THE LINE OF STORMS
WAS MOVING SOUTHWEST AT 20 TO 30 MILES AN HOUR...AND WILL REACH THE
EFFINGHAM AREA BETWEEN 630 AND 7 PM.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM.  PEOPLE IN
EFFINGHAM COUNTY...INCLUDING THE CITY OF EFFINGHAM...SHOULD REMAIN ALERT
FOR THREATENING WEATHER CONDITIONS AS THESE STORMS APPROACH.

TRUETT
Special weather statement, Jun 21, 6:16 PM CDT, 22 minutes before
ILZ066-220000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
615 PM CDT WED JUN 21 1995

...STRONG THUNDERSTORMS HEADING FOR THE EFFINGHAM AREA...

AT 615 PM...WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS ABOUT 25 MILES NORTHEAST OF EFFINGHAM.  THE LINE OF STORMS
WAS MOVING SOUTHWEST AT 20 TO 30 MILES AN HOUR...AND WILL REACH THE
EFFINGHAM AREA BETWEEN 630 AND 7 PM.

A SEVERE THUNDERSTORM WATCH IS I~N EFFECT UNTIL 9 PM.  PEOPLE IN
EFFINGHAM COUNTY...INCLUDING THE CITY OF EFFINGHAM...SHOULD REMAIN ALERT
FOR THREATENING WEATHER CONDITIONS AS THESE STORMS APPROACH.

TRUETT

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 21, 6:55 PM CDTSevere Thunderstorm WarningLSXFayette31 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.