Alert archive / Illinois / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 32, NWS Quad Cities, IA

May 23, 1994Jo Daviess County, Illinois; Lafayette County, Wisconsin

NWS Quad Cities, IA issued this severe thunderstorm warning at May 23, 1994, 4:14 PM CDT for Jo Daviess County, Illinois; Lafayette County, Wisconsin. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
May 23, 1994, 4:14 PM CDT (21:14 UTC)
Expired
May 23, 1994, 5:15 PM CDT
In force
61 min
Issued by
NWS Quad Cities, IA
Area
Whole counties

Counties Jo Daviess County, IL, Lafayette County, WI

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 9.2 hours before the alert went out and 379 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, Minneapolis, MN at 12:00Z on 1994-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Minneapolis, MN at 12:00Z on 1994-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2059 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
143 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 2:39 PM CDTSevere Thunderstorm WarningDVNClayton66 min
May 23, 3:54 PM CDTSevere Thunderstorm WarningDVNDubuque35 min
May 23, 3:02 PM CDTSevere Thunderstorm WarningDVNGrant58 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1994Severe Thunderstorm Warnings in Wisconsin, 1994Every severe thunderstorm warning in 1994

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.