Alert archive / Illinois / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 12, NWS Lincoln, IL

May 6, 1986Marshall County, Peoria County, Woodford County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 6, 1986, 1:53 PM CDT for Marshall County, Peoria County, Woodford County, Illinois. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
May 6, 1986, 1:53 PM CDT (18:53 UTC)
Expired
May 6, 1986, 3:00 PM CDT
In force
67 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Marshall County, IL, Peoria County, IL, Woodford County, IL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Peoria Regional, IL (KPIA), launched 12:00Z, 6.9 hours before the alert went out and 26 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, Peoria Regional, IL at 12:00Z on 1986-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1430 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, Peoria Regional, IL at 12:00Z on 1986-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
1430 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
814 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
-76 m²/s²
Significant tornado parameter
0.0
Supercell composite
-5.2

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
May 6, 12:20 PM CDTSevere Thunderstorm WarningILXHancock55 min
May 6, 12:52 PM CDTSevere Thunderstorm WarningILXMcDonough, Warren38 min
May 6, 2:16 PM CDTSevere Thunderstorm WarningILXMason, Tazewell2 hr
May 6, 2:30 PM CDTSevere Thunderstorm WarningILXHancock, McDonough, Schuyler60 min
May 6, 3:41 PM CDTSevere Thunderstorm WarningILXChampaign, Vermilion64 min
May 6, 3:46 PM CDTSevere Thunderstorm WarningILXFulton, Hancock, McDonough, Schuyler74 min
May 6, 5:01 PM CDTSevere Thunderstorm WarningILXFulton, McDonough, Mason, Schuyler, Tazewell59 min
May 6, 5:22 PM CDTSevere Thunderstorm WarningILXCass, Menard68 min
May 6, 5:22 PM CDTSevere Thunderstorm WarningILXLogan68 min
May 6, 6:07 PM CDTSevere Thunderstorm WarningILXMorgan, Sangamon68 min
May 6, 6:45 PM CDTSevere Thunderstorm WarningILXMorgan, Sangamon60 min
May 6, 6:56 PM CDTSevere Thunderstorm WarningILXMorgan, Sangamon64 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1986Every severe thunderstorm warning in 1986

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.