Alert archive / Illinois / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 66, NWS Lincoln, IL

May 9, 2000Clay County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 9, 2000, 2:35 PM CDT for Clay County, Illinois. It was in force for 55 min. 3 reports came from 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, with what was reported inside it.

The facts

Issued
May 9, 2000, 2:35 PM CDT (19:35 UTC)
Expired
May 9, 2000, 3:30 PM CDT
In force
55 min
Issued by
NWS Lincoln, IL
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Clay County, IL

What was reported inside it

TimeReportWhereRemark
May 9, 2:37 PM CDTThunderstorm Wind 55 ESalem, IL
May 9, 2:37 PM CDTHail 0.75Salem, IL
May 9, 3:00 PM CDTThunderstorm WindLouisville, ILThunderstorm winds blew down numerous trees. Also, a shed was destroyed in Bible Grove and two homes in Flora sustained minor roof damage.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
May 9, 2:30 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.6 hours before the alert went out and 162 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 2000-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 50 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 2000-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -452 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
50 J/kg
Mixed-layer CIN
-353 J/kg
Mixed-layer LCL
767 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
-452 m²/s²
0-3 km storm-relative helicity
-893 m²/s²
Significant tornado parameter
0.0
Supercell composite
-1.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KILX 091936
SVRSPI
ILC025-092030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
235 PM CDT TUE MAY 9 2000

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLAY COUNTY IN SOUTHEAST ILLINOIS

* UNTIL 330 PM CDT

* AT 235 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 17 MILES WEST OF XENIAM...MOVING NORTHEAST
  AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  XENIA
  IOLA
  FLORA
  LOUISVILLE
  CLAY CITY
  
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.

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

LAT...LON 3868 8911 3852 8899 3867 8829 3894 8837

HEDGES

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 8:58 PM CDTSevere Thunderstorm WarningILXFulton, Knox47 min
May 8, 9:25 PM CDTSevere Thunderstorm WarningILXPeoria65 min
May 8, 9:40 PM CDTSevere Thunderstorm WarningILXMarshall, Stark65 min
May 8, 9:45 PM CDTSevere Thunderstorm WarningILXFulton60 min
May 8, 9:50 PM CDTSevere Thunderstorm WarningILXMason, Tazewell55 min
May 8, 10:02 PM CDTTornado WarningILXTazewell43 min
May 8, 10:11 PM CDTSevere Thunderstorm WarningILXWoodford64 min
May 8, 10:29 PM CDTSevere Thunderstorm WarningILXLogan, Menard61 min
May 8, 10:40 PM CDTTornado WarningILXMcLean, Tazewell50 min
May 8, 10:57 PM CDTSevere Thunderstorm WarningILXDeWitt63 min
May 8, 11:03 PM CDTSevere Thunderstorm WarningILXMacon57 min
May 8, 11:08 PM CDTSevere Thunderstorm WarningILXPiatt67 min
May 9, 1:59 AM CDTSevere Thunderstorm WarningILXScott46 min
May 9, 2:12 AM CDTSevere Thunderstorm WarningILXMorgan48 min
May 9, 2:22 AM CDTSevere Thunderstorm WarningILXSangamon53 min
May 9, 3:40 AM CDTSevere Thunderstorm WarningILXMoultrie, Shelby50 min
May 9, 2:51 PM CDTSevere Thunderstorm WarningILXVermilion39 min
May 9, 3:04 PM CDTSevere Thunderstorm WarningILXCumberland, Effingham, Jasper56 min
May 9, 3:27 PM CDTSevere Thunderstorm WarningILXClark, Edgar63 min
May 9, 3:29 PM CDTSevere Thunderstorm WarningILXVermilion46 min
May 9, 3:47 PM CDTSevere Thunderstorm WarningILXCrawford43 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.