Alert archive / Illinois / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 110, NWS Lincoln, IL

May 18, 2000Marshall County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 18, 2000, 5:30 PM CDT for Marshall County, Illinois. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
May 18, 2000, 5:30 PM CDT (22:30 UTC)
Expired
May 18, 2000, 6:15 PM CDT
In force
45 min
Issued by
NWS Lincoln, IL
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Marshall County, IL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 18, 3:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.5 hours before the alert went out and 112 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, Lincoln, IL at 12:00Z on 2000-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 557 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, Lincoln, IL at 12:00Z on 2000-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 328 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
557 J/kg
Mixed-layer CIN
-308 J/kg
Mixed-layer LCL
1218 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
328 m²/s²
0-3 km storm-relative helicity
351 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KILX 182232
SVRSPI
ILC123-182315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
530 PM CDT THU MAY 18 2000

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MARSHALL COUNTY IN CENTRAL ILLINOIS

* UNTIL 615 PM CDT

* AT 530 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF VARNA...OR ABOUT 9 MILES
  SOUTHEAST OF LACON...MOVING NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  VARNA
  TOLUCA
  WENONA

THIS STORM IS CAPABLE OF PRODUCING WINDS IN EXCESS OF 60 MPH...
DAMAGING HAIL...FREQUENT LIGHTNING...AND VERY HEAVY RAIN. TAKE
SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES AT ANY TIME.

REPORT SEVERE WEATHER OR ANY STORM DAMAGE TO THE NEAREST LAW
ENFORCEME:NT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. STAY
TUNED FOR LATER STATEMENTS.

LAT...LON 4111 8932 4094 8928 4094 8906 4111 8908

AUTEN

NNNN

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 18, 9:52 AM CDTSevere Thunderstorm WarningILXChampaign53 min
May 18, 10:02 AM CDTSevere Thunderstorm WarningILXVermilion43 min
May 18, 10:17 AM CDTTornado WarningILXVermilion28 min
May 18, 10:35 AM CDTSevere Thunderstorm WarningILXChampaign, Douglas, Piatt55 min
May 18, 10:35 AM CDTSevere Thunderstorm WarningILXMoultrie55 min
May 18, 10:45 AM CDTSevere Thunderstorm WarningILXVermilion60 min
May 18, 10:58 AM CDTTornado WarningILXChampaign, Douglas47 min
May 18, 11:15 AM CDTTornado WarningILXVermilion45 min
May 18, 11:35 AM CDTSevere Thunderstorm WarningILXChampaign40 min
May 18, 11:56 AM CDTSevere Thunderstorm WarningILXVermilion49 min
May 18, 4:00 PM CDTSevere Thunderstorm WarningILXPeoria, Stark45 min
May 18, 4:18 PM CDTSevere Thunderstorm WarningILXMarshall42 min
May 18, 4:38 PM CDTTornado WarningILXMarshall37 min
May 18, 4:46 PM CDTSevere Thunderstorm WarningILXPeoria44 min
May 18, 4:58 PM CDTSevere Thunderstorm WarningILXWoodford47 min
May 18, 5:06 PM CDTTornado WarningILXMarshall24 min
May 18, 5:18 PM CDTTornado WarningILXWoodford42 min
May 18, 5:28 PM CDTSevere Thunderstorm WarningILXPeoria, Tazewell47 min
May 18, 5:43 PM CDTSevere Thunderstorm WarningILXLogan, McLean62 min
May 18, 5:56 PM CDTTornado WarningILXMcLean, Woodford49 min
May 18, 6:37 PM CDTTornado WarningILXMcLean68 min
May 18, 6:48 PM CDTTornado WarningILXLogan42 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2000Every severe thunderstorm warning in 2000

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.