Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 86, NWS Quad Cities, IA

August 9, 1995Whiteside County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at Aug 9, 1995, 5:38 PM CDT for Whiteside County, Illinois. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Aug 9, 1995, 5:38 PM CDT (22:38 UTC)
Expired
Aug 9, 1995, 6:30 PM CDT
In force
52 min
Issued by
NWS Quad Cities, IA
Area
Whole counties

County Whiteside County, IL

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.6 hours before the alert went out and 51 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 092240 RRA
SVRMLI
ILC195-092330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
538 PM CDT WED AUG 9 1995
 
THE NATIONAL WEATHER SERVICE IN QUAD CITIES IA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST ILLINOIS
 
   ...EASTERN WHITESIDE COUNTY
 
AT 537 PM CDT... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST
NORTH OF STERLING BUILDING SOUTH AT 25 MPH. THIS STORM WILL REACH
STERLING BY 545 PM CDT... AND ROCK FALLS BY 550 PM CDT... THEN PROCEED
DOWN ROUTE 88.
 
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, 5:03 PM CDTSevere Thunderstorm WarningDVNBureau27 min
Aug 9, 5:07 PM CDTSevere Thunderstorm WarningDVNCarroll53 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.