Alert archive / Illinois / Tornado Warnings in 1996

Tornado Warning 21, NWS Quad Cities, IA

July 29, 1996Bureau County, Illinois

NWS Quad Cities, IA issued this tornado warning at Jul 29, 1996, 11:54 PM CDT for Bureau County, Illinois. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 29, 1996, 11:54 PM CDT (04:54 UTC)
Expired
Jul 30, 1996, 12:45 AM CDT
In force
51 min
Issued by
NWS Quad Cities, IA
Area
Whole counties

County Bureau County, IL

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 4.9 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 00:00Z on 1996-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 249 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 00:00Z on 1996-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.1939587897Sfc1 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
249 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1563 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLI 300454
TORMLI
ILC011-300545-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1154 PM CDT MON JUL 29 1996
 
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1245 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL ILLINOIS
 
   ...BUREAU COUNTY
 
AT 1153 PM CDT...A TORNADO WAS DEVELOPING EIGHT MILES
EAST OF KEWANEE AND WAS MOVING NORTHEAST AT 30 MILES AN HOUR.
THIS TORNADO WILL CROSS INTO BUREAU COUNTY BY MIDNIGHT...AND WILL
REACH PROVIDENCE BY 1205 AM...AND TISKILWA BY 1210 AM.
 
THIS STORM PRODUCED WIND DAMAGE IN SOUTHEAST HENRY COUNTY
AS IT MOVED THROUGH.  TAKE SHELTER NOW.
 
BOEHMKE
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 12:48 AM CDTTornado WarningDVNHenry27 min
Jul 30, 12:58 AM CDTSevere Thunderstorm WarningDVNBureau, Putnam62 min

Nearby

Tornado Warnings in Illinois, 1996Every tornado warning in 1996Tornadoes in 1996

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.