Alert archive / Illinois / Flash Flood Warnings in 2002

Flash Flood Warning 2, NWS Lincoln, IL

April 19, 2002Champaign County, Douglas County, Illinois

NWS Lincoln, IL issued this flash flood warning at Apr 19, 2002, 7:55 PM CDT for Champaign County, Douglas County, Illinois. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 19, 2002, 7:55 PM CDT (00:55 UTC)
Expired
Apr 20, 2002, 2:00 AM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

Counties Champaign County, IL, Douglas County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.9 hours before the alert went out and 44 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 2002-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 49 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 2002-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 127 square meters per square second.1939587897117136Sfc1 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
49 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
1566 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
127 m²/s²
0-3 km storm-relative helicity
186 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 200055
FFWSPI
ILC019-041-200700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
753 PM CDT FRI APR 19 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DOUGLAS COUNTY IN EAST CENTRAL ILLINOIS
  CHAMPAIGN COUNTY IN EAST CENTRAL ILLINOIS

* UNTIL 200 AM CDT

* AT 749 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  HEAVY RAINS CONTINUING NEAR VILLA GROVE. THREE INCHES OF RAIN
  HAS BEEN ESTIMATED SINCE 6 PM.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS
  EXTREME NORTHERN DOUGLAS AND SOUTHERN CHAMPAIGN COUNTIES.
  RAINFALL AMOUNTS WILL LIKELY RANGE FROM 5 TO 6 INCHES BY
  10 PM. THESE RAINFALL AMOUNTS WILL LIKELY   PRODUCE FLASH FLOODING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF IN A FLOOD PRONE AREA...MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG CREEKS AND STREAMS ARE ESPECIALLY VULNERABLE
TO THE EFFECTS OF FLASH FLOODING. DO NOT ATTEMPT TO CROSS FLOODED
AREAS BY FOOT OR AUTOMOBILE.

REPORT FLASH FLOODING TO YOUR LOCAL ESDA...OR THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE. STAY
TUNED FOR LATER STATEMENTS.

LAT...LON 4006 8795 3978 8796 3978 8845 4006 8847

BARKER

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 7:03 PM CDTSevere Thunderstorm WarningILXChampaign, Douglas42 min
Apr 19, 7:19 PM CDTTornado WarningILXChampaign56 min
Apr 19, 7:25 PM CDTSevere Thunderstorm WarningILXCass50 min
Apr 19, 7:25 PM CDTSevere Thunderstorm WarningILXMacon65 min
Apr 19, 7:29 PM CDTSevere Thunderstorm WarningILXPiatt46 min
Apr 19, 7:54 PM CDTSevere Thunderstorm WarningILXMenard, Sangamon66 min
Apr 19, 8:05 PM CDTSevere Thunderstorm WarningILXChampaign, Douglas55 min
Apr 19, 8:37 PM CDTFlash Flood WarningILXVermilion5 hr
Apr 19, 8:43 PM CDTSevere Thunderstorm WarningILXChristian62 min
Apr 19, 8:45 PM CDTFlash Flood WarningILXPiatt5 hr
Apr 19, 8:46 PM CDTFlash Flood WarningILXPiatt, Sangamon5 hr
Apr 19, 8:47 PM CDTFlash Flood WarningILXPiatt5 hr
Apr 19, 8:49 PM CDTFlash Flood WarningILXSangamon5 hr
Apr 19, 8:53 PM CDTSevere Thunderstorm WarningILXLogan, Macon, Sangamon52 min
Apr 19, 9:00 PM CDTFlash Flood WarningILXChristian, Macon5 hr
Apr 19, 9:31 PM CDTFlash Flood WarningILXDeWitt, Logan4 hr
Apr 20, 2:09 AM CDTFlash Flood WarningILXChampaign, Douglas6 hr

Nearby

Flash Flood Warnings in Illinois, 2002Every flash flood 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.