Alert archive / Illinois / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 83, NWS Lincoln, IL

June 26, 1993Winnebago County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 26, 1993, 4:57 PM CDT for Winnebago County, Illinois. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Jun 26, 1993, 4:57 PM CDT (21:57 UTC)
Expired
Jun 26, 1993, 5:30 PM CDT
In force
33 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Winnebago County, IL

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.0 hours before the alert went out and 253 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, Green Bay/Straub, WI at 12:00Z on 1993-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Green Bay/Straub, WI at 12:00Z on 1993-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
1 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
1709 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
91 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 Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 5:56 PM CDTTornado WarningILXWinnebago34 min
Jun 26, 6:17 PM CDTSevere Thunderstorm WarningILXJo Daviess, Stephenson, Winnebago43 min
Jun 26, 6:17 PM CDTSevere Thunderstorm WarningILXBoone43 min
Jun 26, 6:43 PM CDTTornado WarningILXCarroll, Ogle32 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1993Every severe thunderstorm warning in 1993

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.