Alert archive / Illinois / Flash Flood Warnings in 2004

Flash Flood Warning 31, NWS Lincoln, IL

May 30, 2004Champaign County, Vermilion County, Illinois

NWS Lincoln, IL issued this flash flood warning at May 30, 2004, 7:21 PM CDT for Champaign County, Vermilion County, Illinois. It was in force for 6 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 30, 2004, 7:21 PM CDT (00:21 UTC)
Expired
May 31, 2004, 1:15 AM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

Counties Champaign County, IL, Vermilion County, IL

What was reported inside it

TimeReportWhereRemark
May 30, 8:31 PM CDTFLASH FLOODRossville, ILRELAYED BY WCIA-TV.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.4 hours before the alert went out and 58 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 2004-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 00:00Z on 2004-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -89 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
7 J/kg
Mixed-layer CIN
-270 J/kg
Mixed-layer LCL
845 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
-89 m²/s²
0-3 km storm-relative helicity
-31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 310022
FFWILX
ILC019-183-310615-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
721 PM CDT SUN MAY 30 2004

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 115 AM CDT

* AT 714 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  STRONG THUNDERSTORMS WITH VERY HEAVY RAIFALL. RADAR IS ESTIMATING
  RAINFALL AMOUNTS OF 1 TO 2 INCHES PER HOUR WITH THESE STORMS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO JUDGE HOW
MUCH WATER COVERS ROADWAYS. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS.


LAT...LON 3990 8757 3989 8790 3989 8846 4040 8846
          4040 8794 4048 8794 4049 8755

$$

KELLY

NNNN
2 follow-up statements
000 
WGUS73 KILX 310202
FFSILX
ILC019-310215-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
902 PM CDT SUN MAY 30 2004

...THE FLASH FLOOD WARNING FOR CHAMPAIGN COUNTY HAS BEEN CANCELLED...

THE HEAVY RAINFALL AND FLOOD THREAT HAS ENDED ACROSS THE WARNED AREA.
THEREFORE...THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

LAT...LON 4002 8796 3989 8795 3989 8846 4040 8845
          4040 8794

$$

KELLY
000 
WGUS73 KILX 310206
FFSILX
ILC183-310615-

FLASH FLOOD STATEMENT...CORRECTED TYPO...
NATIONAL WEATHER SERVICE LINCOLN IL
904 PM CDT SUN MAY 30 2004

...A FLASH FLOOD WARNING CONTINUES FOR VERMILION COUNTY UNTIL 115 AM
CDT...

FLOODING WAS STILL A THREAT ACROSS VERMILION COUNTY...ESPECIALLY IN 
HOOPESTON AND ROSSVILLE WHERE FLASH FLOODING WAS REPORTED EARLIER THIS 
EVENING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO JUDGE HOW
MUCH WATER COVERS ROADWAYS. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS.

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 4025 8755 3990 8793 4023 8794 4031 8792
          4048 8793 4049 8754

$$

KELLY

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 7:08 PM CDTTornado WarningILXClay52 min
May 30, 7:12 PM CDTFlash Flood WarningILXClay, Crawford, Richland6 hr
May 30, 7:19 PM CDTFlash Flood WarningILXJasper, Lawrence6 hr
May 30, 7:24 PM CDTTornado WarningILXVermilion66 min
May 30, 7:28 PM CDTTornado WarningILXJasper, Richland62 min
May 30, 7:37 PM CDTTornado WarningILXCrawford, Lawrence53 min
May 30, 11:23 PM CDTFlash Flood WarningILXEffingham4 hr
May 31, 6:30 PM CDTSevere Thunderstorm WarningILXSchuyler60 min
May 31, 6:53 PM CDTSevere Thunderstorm WarningILXCass, Morgan, Scott52 min
May 31, 6:59 PM CDTSevere Thunderstorm WarningILXFulton61 min

Nearby

Flash Flood Warnings in Illinois, 2004Every flash flood warning in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.