Alert archive / Illinois / Flash Flood Warnings in 2003

Flash Flood Warning 23, NWS Lincoln, IL

July 6, 2003Champaign County, Vermilion County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 6, 2003, 2:45 AM CDT for Champaign County, 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
Jul 6, 2003, 2:45 AM CDT (07:45 UTC)
Expired
Jul 6, 2003, 8:30 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

The radar

The Lincoln radar (KILX), 124 km from the middle of the area, began a volume at 07:48 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 00:00Z, 7.8 hours before the alert went out and 63 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 2003-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4874 joules per kilogram.LCLEL10008507005003002001001 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 2003-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
4874 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1335 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.9
Supercell composite
13.5

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 060748
FFWILX
ILC019-183-061330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
245 AM CDT SUN JUL 6 2003

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 830 AM CDT

* AT 238 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  HEAVY RAINS CONTINUING TO MOVE OVER PORTIONS OF CHAMPAIGN AND
  VERMILION COUNTIES. 4 TO 6 INCHES OF RAIN HAS BEEN ESTIMATED 
  IN THE AREA SINCE 10 PM.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE TO MOVE ACROSS
  PORTIONS OF THE AREA. ADDITIONAL RAINFALL AMOUNTS WILL LIKELY 
  RANGE FROM 1 TO 3 INCHES. 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.

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 8762 4004 8760 4002 8827 4037 8829

$$

GOETSCH

NNNN
2 follow-up statements
000 
WGUS73 KILX 060905
FFSILX
ILC019-183-061330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
403 AM CDT SUN JUL 6 2003

...A FLASH FLOOD WARNING CONTINUES FOR VERMILION AND CHAMPAIGN 
COUNTIES UNTIL 830 AM CDT...

AT 403 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE HEAVY RAINS HAVE DIMINISHED OVER CHAMPAIGN AND VERMILION 
COUNTIES. 4 TO 6 INCHES OF RAIN HAS BEEN ESTIMATED SINCE 10 PM. 
ALTHOUGH THE RAINFALL INTENSITY HAS DECREASED...THE FLOOD THREAT 
WILL CONTINUE THROUGH THE EARLY MORNING HOURS...DUE TO RUNOFF FROM 
THE HEAVY RAINS.

EXCESSIVE RAINFALL WILL CAUSE FLOODING NEAR STREAMS...CREEKS AND
NEARBY FARMLAND. BE ESPECIALLY CAUTIOUS ON COUNTY ROADS AND IN LOW
LYING AREAS. NEVER CROSS AREAS IN WHICH WATER COVERS THE ROADS.

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.

$$

BYRD

NNNN
000 
WGUS73 KILX 061137
FFSILX
ILC019-183-061200-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
637 AM CDT SUN JUL 6 2003

...THE FLASH FLOOD WARNING FOR VERMILION AND CHAMPAIGN COUNTIES HAS
BEEN CANCELLED...

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

$$

BYRD

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 7:58 PM CDTSevere Thunderstorm WarningILXPeoria, Tazewell62 min
Jul 5, 8:32 PM CDTSevere Thunderstorm WarningILXEdgar58 min
Jul 5, 9:26 PM CDTSevere Thunderstorm WarningILXChampaign64 min
Jul 5, 9:32 PM CDTFlash Flood WarningILXEdgar6 hr
Jul 5, 10:03 PM CDTSevere Thunderstorm WarningILXDouglas57 min
Jul 5, 11:26 PM CDTSevere Thunderstorm WarningILXMcLean64 min
Jul 5, 11:43 PM CDTFlash Flood WarningILXDouglas4 hr
Jul 6, 1:56 PM CDTSevere Thunderstorm WarningILXMcLean64 min
Jul 6, 3:35 PM CDTSevere Thunderstorm WarningILXChampaign, Piatt55 min

Nearby

Flash Flood Warnings in Illinois, 2003Every flash flood warning in 2003

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.