Alert archive / Illinois / Flash Flood Warnings in 2004

Flash Flood Warning 45, NWS Lincoln, IL

July 9, 2004Vermilion County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 9, 2004, 5:53 PM CDT for Vermilion County, Illinois. It was in force for 4 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
Jul 9, 2004, 5:53 PM CDT (22:53 UTC)
Expired
Jul 9, 2004, 10:00 PM CDT
In force
4 hr
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

County Vermilion County, IL

The radar

The Chicago radar (KLOT), 136 km from the middle of the area, began a volume at 22:55 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, 10.9 hours before the alert went out and 89 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 2004-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2498 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 2004-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 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
2498 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
523 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
115 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 092255
FFWILX
ILC183-100300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
553 PM CDT FRI JUL 9 2004

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 1000 PM CDT

* AT 549 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN HAS FALLEN OVER NORTHERN VERMILION COUNTY.
  RADAR ESTIMATES AROUND 2 INCHES OF RAIN HAS FALLEN SINCE 5 PM.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS NORTHERN
  VERMILION COUNTY. RAINFALL AMOUNTS WILL LIKELY RANGE FROM 3 TO 4
  INCHES BY 7 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 4059 8741 4020 8742 4020 8792 4059 8792

$$

BAK
2 follow-up statements
000 
WGUS73 KILX 100105
FFSILX
ILC183-100300-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
804 PM CDT FRI JUL 9 2004

...A FLASH FLOOD WARNING CONTINUES FOR VERMILION COUNTY UNTIL 1000 PM
CDT...

AT 804 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAINS CONTINUING OVER NORTHERN VERMILION COUNTHY. AROUND 4 INCHES
OF RAIN HAS BEEN ESTIMATED SINCE 5 PM.

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 4050 8760 4017 8758 4015 8794 4054 8794

$$

BAK
000 
WGUS73 KILX 100300
FFSILX
ILC183-100315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1000 PM CDT FRI JUL 9 2004

...THE FLASH FLOOD WARNING FOR VERMILION COUNTY IS BEING ALLOWED TO
EXPIRE...

THE HEAVY RAINFALL AND FLOOD THREAT HAS ENDED ACROSS THE WARNED AREA.
THEREFORE...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. 
HOWEVER...ADDITIONAL RAINS WILL BE MOVING INTO THE AREA LATER THIS 
EVENING AND DURING THE OVERNIGHT HOURS...SO BE ALERT TO THE RAPIDLY 
CHANGING WEATHER CONDITIONS.

LAT...LON 4041 8755 3999 8753 4001 8792 4040 8792

$$

BYRD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 4:30 PM CDTSevere Thunderstorm WarningILXMcLean60 min
Jul 9, 4:53 PM CDTSevere Thunderstorm WarningILXChampaign67 min
Jul 9, 5:20 PM CDTSevere Thunderstorm WarningILXVermilion55 min
Jul 9, 5:25 PM CDTSevere Thunderstorm WarningILXKnox65 min
Jul 9, 6:12 PM CDTFlash Flood WarningILXKnox6 hr
Jul 9, 6:15 PM CDTFlash Flood WarningILXChampaign4 hr
Jul 9, 6:20 PM CDTSevere Thunderstorm WarningILXPeoria55 min
Jul 9, 6:26 PM CDTSevere Thunderstorm WarningILXStark49 min
Jul 9, 6:55 PM CDTSevere Thunderstorm WarningILXMarshall65 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.