Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 195, NWS St. Louis, MO

August 9, 1995Jefferson County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Aug 9, 1995, 9:27 PM CDT for Jefferson County, Illinois. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Aug 9, 1995, 9:27 PM CDT (02:27 UTC)
Expired
Aug 9, 1995, 10:30 PM CDT
In force
63 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Jefferson County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.5 hours before the alert went out and 207 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 1995-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4119 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 1995-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
4119 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1074 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
41 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 KSTL 100227 RRA
SVRSTL
ILC081-100330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
927 PM CDT WED AUG 9 1995
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL ILLINOIS
 
   ...JEFFERSON COUNTY
 
AT 923 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS EXTENDING NORTHWEST FROM NEAR FAIRFIELD ILLINOIS
NORTHWEST TO JUST EAST OF CARLYLE LAKE. THESE STORMS ARE MOVING TO THE
SOUTH AT 20 MPH.  COMMUNITIES IN THE PATH OF THIS STORM INCLUDE...
BOYD...HARMONY...MT. VERNON...AND BELLE RIVE ILLINOIS. THEY WILL
ALSO REACH NORTHERN REACHES OF REND LAKE BY 1015 PM. BOATERS SHOULD SEEK
SHELTER IMMEDIATELY.
 
TREES WERE REPORTED DOWN AT 920 PM ALONG THE JEFFERSON-MARION COUNTY
LINE.
 
PEDIGO
 
THIS STORM HAS A HISTORY OF DAMAGING WINDS. SEEK INSIDE SHEtLTER
NOW!
 
 
 
&

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, Aug 9, 5:04 PM CDT, 4 hours 23 minutes before
MOZ076-084-085-099-100000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
504 PM CDT WED AUG 9 1995

A SMALL CLUSTER OF VERY HEAVY THUNDERSTORMS HAS BEEN SPRAWLED ACROSS
SOUTHEAST MISSOURI LATE THIS AFTERNOON. AT 5 PM CDT NATIONAL WEATHER
SERVICE DOPPLER RADAR INDICATED TWO VERY STRONG STORMS...ONE WAS
LOCATED NEAR AND JUST SOUTH OF PERRYVILLE...AND THE OTHER JUST EAST OF
FREDERICKTOWN. THESE STORMS ARE MEANDERING SLOWLY NORTHWARD BUT COULD
ACTUALLY MOVE OR DEVELOP IN ANY DIRECTION THIS EVENING DUE TO THE
WEAKNESS OF THE STEERING WINDS.

PERSONS IN OR NEAR THESE COMMUNITIES CAN EXPECT BURSTS OF VERY HEAVY
RAINFALL IN OR NEAR THESE STORMS. LOCAL FLOODING WILL ALSO BE A
PROBLEM. ALSO...IF YOU ARE DRIVING WATCH FOR NEAR ZERO VISIBILITIES
ALONG YOUR ROUTE DUE TO THE RAINFALL.

PEDIGO
Special weather statement, Aug 9, 5:10 PM CDT, 4 hours 17 minutes before
MOZ076-084-085-099-100000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
504 PM CDT WED AUG 9 1995

A SMALL CLUSTER OF VERY HEAVY THUNDERSTORMS HAS BEEN SPRAWLED ACROSS
SOUTHEAST MISSOURI LATE THIS AFTERNOON. AT 5 PM CDT NATIONAL WEATHER
SERVICE DOPPLER RADAR INDICATED TWO VERY STRONG STORMS...ONE WAS
LOCATED NEAR AND JUST SOUTH OF PERRYVILLE...AND THE OTHER JUST EAST OF
FREDERICKTOWN. THESE STORMS ARE MEANDERING SLOWLY NORTHWARD BUT COULD
ACTUALLY MOVE OR DEVELOP IN ANY DIRECTION THIS EVENING DUE TO THE
WEAKNESS OF THE STEERING WINDS.

PERSONS IN OR NEAR THESE COMMUNITIES CAN EXPECT BURSTS OF VERY HEAVY
RAINFALL IN OR NEAR THESE STORMS. LOCAL FLOODING WILL ALSO BE A
PROBLEM. ALSO...IF YOU ARE DRIVING WATCH FOR NEAR ZERO VISIBILITIES
ALONG YOUR ROUTE DUE TO THE RAINFALL.

PEDIGO
Special weather statement, Aug 9, 7:38 PM CDT, 1 hour 49 minutes before
ILZ066-100245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
738 PM CDT WED AUG 9 1995

AT 730 PM A LINE OF THUNDERSTORMS DEVELOPED IN EASTERN SHELBY COUNTY.
THIS LINE OF STORMS TRAILED FROM A POINT 35 MILES EAST OF EFFINGHAM
NORTHWESTWARD TO 20 MILES NORTHWEST OF EFFINGHAM. ANOTHER VERY STRONG
STORM WAS LOCATED 20 MILES SOUTH OF EFFINGHAM NEAR MASON ILLINOIS.
THESE STORMS ARE MOVING TO THE SOUTH AT 20 MPH.

STRONG GUSTY WINDS TO 50 MPH MAY ACCOMPANY THE STRONGER STORMS ALONG
WITH BRIEF DRENCHING RAINS.  PERSONS IN AND NEAR EFFINGHAM SHOULD BE
ALERT FOR THE PASSAGE OF THIS STORM AND BE PREPARED TO TAKE COVER
SHOULD THE STORM STRENGTHEN FURTHER.

PEDIGO
Special weather statement, Aug 9, 7:44 PM CDT, 1 hour 43 minutes before
ILZ066-100245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
738 PM CDT WED AUG 9 1995

AT 730 PM A LINE OF THUNDERSTORMS DEVELOPED IN EASTERN SHELBY COUNTY.
THIS LINE OF STORMS TRAILED FROM A POINT 35 MILES EAST OF EFFINGHAM
NORTHWESTWARD TO 20 MILES NORTHWEST OF EFFINGHAM. ANOTHER VERY STRONG
STORM WAS LOCATED 20 MILES SOUTH OF EFFINGHAM NEAR MASON ILLINOIS.
THESE STORMS ARE MOVING TO THE SOUTH AT 20 MPH.

STRONG GUSTY WINDS TO 50 MPH MAY ACCOMPANY THE STRONGER STORMS ALONG
WITH BRIEF DRENCHING RAINS.  PERSONS IN AND NEAR EFFINGHAM SHOULD BE
ALERT FOR THE PASSAGE OF THIS STORM AND BE PREPARED TO TAKE COVER
SHOULD THE STORM STRENGTHEN FURTHER.

PEDIGO
Special weather statement, Aug 9, 9:06 PM CDT, 21 minutes before
MOZ009-010-018-019-026-027-035-036-052-061-063>065-075-076-101400-

MISSOURI SEVERE WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE ST LOUIS MO
906 PM CDT WED AUG 9 1995

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT FOR PORTIONS OF
EAST CENTRAL...NORTHEAST AND SOUTHEAST MISSOURI.

THIS INCLUDED THE CITIES OF HANNIBAL AND ST LOUIS METRO AREA.

STORMS SPOTTER GROUPS AMD EMERGENCY MANAGEMENT SHOULD KEEP ADVISED OF
THE LATEST FORECAST FOR POSSIBLE SKYWARN ACTION TONIGHT.

ACQUAVIVA
Special weather statement, Aug 9, 9:16 PM CDT, 11 minutes before
MOZ009-010-018-019-026-027-035-036-052-061-063>065-075-076-101400-

MISSOURI SEVERE WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE ST LOUIS MO
906 PM CDT WED AUG 9 1995

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT FOR PORTIONS OF
EAST CENTRAL...NORTHEAST AND SOUTHEAST MISSOURI.

THIS INCLUDED THE CITIES OF HANNIBAL AND ST LOUIS METRO AREA.

STORMS SPOTTER GROUPS AMD EMERGENCY MANAGEMENT SHOULD KEEP ADVISED OF
THE LATEST FORECASTh FOR POSSIBLE SKYWARN ACTION TONIGHT.

ACQUAVIVA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 8:31 PM CDTSevere Thunderstorm WarningLSXFayette, Marion59 min
Aug 10, 3:55 AM CDTFlash Flood WarningLSXCalhoun115 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.