Alert archive / Illinois / Flash Flood Warnings in 2004

Flash Flood Warning 74, NWS Lincoln, IL

August 28, 2004Vermilion County, Illinois

NWS Lincoln, IL issued this flash flood warning at Aug 28, 2004, 6:30 PM CDT for Vermilion 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
Aug 28, 2004, 6:30 PM CDT (23:30 UTC)
Expired
Aug 29, 2004, 12:30 AM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

County Vermilion County, IL

The radar

The Lincoln radar (KILX), 140 km from the middle of the area, began a volume at 23:31 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.5 hours before the alert went out and 78 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 2004-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2004-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
913 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
65 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 282332
FFWILX
ILC183-290530-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
630 PM CDT SAT AUG 28 2004

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 1230 AM CDT

* AT 626 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN HAS FALLEN FROM RANKIN EAST TO HOOPESTON. DOPPLER
  HOURLY RAINFALL ESTIMATES SINCE 500 PM RANGE FROM 2 TO 3 INCHES IN
  THIS AREA. THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS
  THIS AREA THIS EVENING. ADDITIONAL RAINFALL AMOUNTS WILL LIKELY 
  1 TO 2 INCHES ACROSS THE NORTHERN PART OF VERMILION COUNTY BY 800 PM
  WHICH 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 4049 8756 4012 8755 4011 8794 4047 8794

$$
SMITH
3 follow-up statements
000 
WGUS73 KILX 290047
FFSILX
ILC183-290530-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
744 PM CDT SAT AUG 28 2004

...A FLASH FLOOD WARNING CONTINUES FOR VERMILION COUNTY UNTIL 1230 AM
CDT...

AT 744 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAINS WERE DIMINISHING ACROSS NORTHERN VERMILION COUNTY...HOWEVER
THE FLASH FLOOD THREAT WILL CONTINUE INTO THE LATE EVENING HOURS. 
VERMILION COUNTY SHERIFFS REPORTED WATER OVER ROUTES 49 AND 9 IN EXTREME
NORTHWEST VERMILION COUNTY.

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 4047 8757 3994 8756 3994 8792 4046 8793

$$
SMITH
000 
WGUS73 KILX 290338
FFSILX
ILC183-290530-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1036 PM CDT SAT AUG 28 2004

...A FLASH FLOOD WARNING CONTINUES FOR VERMILION COUNTY UNTIL 1230 AM
CDT...

AT 1036 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SCATTERED THUNDERSTORMS...SOME OF WHICH CONTAIN VERY HEAVY RAINFALL...
MOVING ACROSS EXTREME NORTHERN VERMILION COUNTY. ADDITIONAL RAINFALL
AMOUNTS OF AROUND AN INCH ARE POSSIBLE IN THIS AREA THROUGH MIDNIGHT WHICH
WILL AGGRAVATE THE FLOODING WHICH HAS ALREADY OCCURRED OVER THE EXTREME 
NORTHERN PORTION OF THE COUNTY 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 4048 8758 4009 8756 4010 8793 4048 8792

$$
SMITH
000 
WGUS73 KILX 290449
FFSILX
ILC183-290500-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1149 PM CDT SAT AUG 28 2004

...THE FLASH FLOOD WARNING FOR NORTHERN VERMILION 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 4046 8756 4015 8755 4015 8793 4047 8792

$$
SMITH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 9:06 PM CDTSevere Thunderstorm WarningILXMacon54 min
Aug 27, 9:43 PM CDTSevere Thunderstorm WarningILXPiatt62 min
Aug 27, 10:15 PM CDTFlash Flood WarningILXVermilion6 hr
Aug 28, 5:21 PM CDTFlash Flood WarningILXClay, Lawrence, Richland6 hr
Aug 28, 5:37 PM CDTFlash Flood WarningILXCrawford, Jasper6 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.