Alert archive / Illinois / Flash Flood Warnings in 2004

Flash Flood Warning 62, NWS Lincoln, IL

August 25, 2004Menard County, Illinois

NWS Lincoln, IL issued this flash flood warning at Aug 25, 2004, 4:30 PM CDT for Menard County, Illinois. It was in force for 6 hr. 4 reports 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
Aug 25, 2004, 4:30 PM CDT (21:30 UTC)
Expired
Aug 25, 2004, 10:30 PM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

County Menard County, IL

The radar

The Lincoln radar (KILX), 37 km from the middle of the area, began a volume at 21:33 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Aug 25, 5:30 PM CDTFLASH FLOOD6 S Petersburg, ILFLOODING ON IL ROUTE 97...DOWN TO 1 LANE OF TRAFFIC.
Aug 25, 5:30 PM CDTFLASH FLOOD6 S Petersburg, ILFLOODING ON IL ROUTE 97...DOWN TO 1 LANE OF TRAFFIC.
Aug 25, 6:10 PM CDTFLASH FLOOD6 S Petersburg, ILRT 97 FLOODED AT ROCK CREEK.
Aug 25, 6:10 PM CDTFLASH FLOOD6 S Petersburg, ILRT 97 FLOODED AT ROCK CREEK.

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 12:00Z, 9.5 hours before the alert went out and 98 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 2004-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1166 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 12:00Z on 2004-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 square meters per square second.193958Sfc1 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
1166 J/kg
Mixed-layer CIN
-143 J/kg
Mixed-layer LCL
777 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
201 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 252132
FFWILX
ILC129-260330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
430 PM CDT WED AUG 25 2004

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MENARD COUNTY IN CENTRAL ILLINOIS

* UNTIL 1030 PM CDT

* AT 427 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN HAS FALLEN NEAR OAKFORD. 1 O 3 INCHES OF RAIN HAS
  BEEN ESTIMATED SINCE 300 PM.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS
  MENARD. RAINFALL AMOUNTS WILL LIKELY RANGE FROM 2 TO 5 INCHES BY
  700 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.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR
VEHICLE INTO AREAS IN WHICH WATER COVERS THE ROADWAY. IT ONLY TAKES A
FOOT OR TWO OF WATER TO WASH MOST VEHICLES AWAY. VEHICLES CAUGHT IN
RISING WATERS SHOULD BE ABANDONED QUICKLY.

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 4014 8998 4013 8975 4016 8966 4014 8961
      4010 8961 4009 8959 3999 8960 3999 8970
      3992 8972 3991 8978 3991 8999

$$

13

NNNN
1 follow-up statement
000 
WGUS73 KILX 252308
FFSILX
ILC129-260330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
605 PM CDT WED AUG 25 2004

...A FLASH FLOOD WARNING CONTINUES FOR MENARD COUNTY UNTIL 1030 PM
CDT...

AT 603 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINS CONTINUING FROM TALLULA TO FANCY PRAIRIE. 1 TO 4 INCHES 
OF RAIN HAS BEEN ESTIMATED SINCE 300 PM.

AT 530 PM CDT...MENARD COUNTY ESDA REPORTED FLOODING ON ILLINOIS 
ROUTE 97.  

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.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR
VEHICLE INTO AREAS IN WHICH WATER COVERS THE ROADWAY. IT ONLY TAKES A
FOOT OR TWO OF WATER TO WASH MOST VEHICLES AWAY. VEHICLES CAUGHT IN
RISING WATERS SHOULD BE ABANDONED QUICKLY.

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 8995 3990 8987 4009 8960 4012 8977

$$

EH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 25, 10:56 AM CDTSevere Thunderstorm WarningILXFulton, Mason64 min
Aug 25, 1:02 PM CDTSevere Thunderstorm WarningILXMorgan, Scott58 min
Aug 25, 2:01 PM CDTSevere Thunderstorm WarningILXCass, Menard, Morgan, Sangamon59 min
Aug 25, 2:49 PM CDTFlash Flood WarningILXSchuyler6 hr
Aug 25, 3:07 PM CDTFlash Flood WarningILXCass, Morgan, Scott6 hr
Aug 25, 3:42 PM CDTFlash Flood WarningILXMason6 hr
Aug 25, 4:07 PM CDTSevere Thunderstorm WarningILXMason38 min
Aug 25, 5:37 PM CDTFlash Flood WarningILXLogan, Sangamon6 hr
Aug 25, 5:52 PM CDTFlash Flood WarningILXDeWitt, McLean, Macon6 hr
Aug 25, 5:55 PM CDTSevere Thunderstorm WarningILXMorgan, Sangamon65 min
Aug 25, 6:40 PM CDTFlash Flood WarningILXChristian6 hr
Aug 25, 6:45 PM CDTFlash Flood WarningILXTazewell6 hr

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; radar from the NEXRAD Level II archive.