Alert archive / Illinois / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 70, NWS Lincoln, IL

May 7, 2002Coles County, Cumberland County, Jasper County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 7, 2002, 3:40 AM CDT for Coles County, Cumberland County, Jasper County, Illinois. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 7, 2002, 3:40 AM CDT (08:40 UTC)
Expired
May 7, 2002, 4:15 AM CDT
In force
35 min
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

Counties Coles County, IL, Cumberland County, IL, Jasper County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 8.7 hours before the alert went out and 92 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 00:00Z on 2002-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 854 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2002-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.1939587897117Sfc1 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
854 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
913 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KILX 070840
SVRSPI
ILC029-035-079-070915-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
337 AM CDT TUE MAY 7 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  COLES COUNTY IN EAST CENTRAL ILLINOIS
  CUMBERLAND COUNTY IN EAST CENTRAL ILLINOIS
  JASPER COUNTY IN SOUTHEAST ILLINOIS

* UNTIL 415 AM CDT

* AT 337 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LARGE SEVERE THUNDERSTORM EXTENDING FROM 6 MILES SOUTHWEST OF 
  MATTOON TO JUST SOUTHWEST OF EFFINGHAM...MOVING EAST-NORTHEAST AT
  45 MPH. GOLFBALL SIZE HAIL IS LIKELY WITH STORM. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MATTOON
  LERNA
  JANESVILLE
  CHARLESTON
  RARDIN
  ASHMORE
  OAKLAND
   
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 YOUR LOCAL ESDA...OR THE
NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER
SERVICE. STAY TUNED FOR LATER STATEMENTS.

LAT...LON 3957 8848 3900 8836 3902 8803 3966 8800

CHURCHILL

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 12:12 AM CDTSevere Thunderstorm WarningILXSangamon48 min
May 7, 1:02 AM CDTSevere Thunderstorm WarningILXSangamon43 min
May 7, 1:25 AM CDTSevere Thunderstorm WarningILXLogan50 min
May 7, 1:28 AM CDTSevere Thunderstorm WarningILXChristian47 min
May 7, 1:36 AM CDTSevere Thunderstorm WarningILXCass, Menard39 min
May 7, 1:49 AM CDTSevere Thunderstorm WarningILXMacon41 min
May 7, 2:41 AM CDTFlash Flood WarningILXCass, Christian, Logan, Macon, Menard, Morgan and 3 more6 hr
May 7, 3:18 AM CDTSevere Thunderstorm WarningILXEffingham, Shelby42 min
May 7, 3:22 AM CDTFlash Flood WarningILXChampaign, Clark, Coles, Cumberland, Douglas, Edgar and 3 more7 hr
May 7, 4:02 AM CDTFlash Flood WarningILXCrawford, Effingham, Jasper7 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2002Every severe thunderstorm warning in 2002

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.