Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 84, NWS Quad Cities, IA

August 9, 1995Bureau County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at Aug 9, 1995, 5:03 PM CDT for Bureau County, Illinois. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Aug 9, 1995, 5:03 PM CDT (22:03 UTC)
Expired
Aug 9, 1995, 5:30 PM CDT
In force
27 min
Issued by
NWS Quad Cities, IA
Area
Whole counties

County Bureau County, IL

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.1 hours before the alert went out and 84 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, Davenport, at 12:00Z on 1995-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2688 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, Davenport, at 12:00Z on 1995-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.193958Sfc1 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
2688 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
772 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLI 092204 RRA
SVRMLI
ILC011-092230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
503 PM CDT WED AUG 9 1995
 
THE NATIONAL WEATHER SERVICE IN QUAD CITIES IA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  530 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL ILLINOIS
 
   ...BUREAU COUNTY
 
AT 505 PM CDT... A SPOTTER REPORTED GOLF BALL SIZE HAIL NEAR PRINCETON.
THIS SEVERnE THUNDERSTORM WAS MOVING SOUTHEAST AT 25 MPH AND WILL AFFECT
BUREAU AND DEPUE BY 515 PM CDT.
 
THIS STORM HAS A HISTORY OF LARGE HAIL.  STAY INDOORS AWAY
FROM WINDOWS!
 
HENDRICKS
 
&

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 5:07 PM CDTSevere Thunderstorm WarningDVNCarroll53 min
Aug 9, 5:38 PM CDTSevere Thunderstorm WarningDVNWhiteside52 min
Aug 9, 6:44 PM CDTSevere Thunderstorm WarningDVNRock Island46 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.