Alert archive / Illinois / Flash Flood Warnings in 2003

Flash Flood Warning 48, NWS Lincoln, IL

July 21, 2003Champaign County, Vermilion County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 21, 2003, 3:50 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 21, 2003, 3:50 AM CDT (08:50 UTC)
Expired: Jul 21, 2003, 9:45 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), 122 km from the middle of the area, began a volume at 08:49 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, 8.8 hours before the alert went out and 60 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3794 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1094 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 210851
FFWILX
ILC019-183-211445-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
350 AM CDT MON JUL 21 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 945 AM CDT

* AT 344 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN HAS FALLEN IN CHAMPAIGN AND VERMILION COUNTIES.
  1 TO 3 INCHES OF RAIN HAS BEEN ESTIMATED SINCE 200 AM.

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 4034 8754 3990 8754 3989 8844 4033 8844

$$

KELLY

NNNN

3 follow-up statements

000 
WGUS73 KILX 211010
FFSILX
ILC019-211030-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
510 AM CDT MON JUL 21 2003

...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.

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.

$$

EH

NNNN

000 
WGUS73 KILX 211015
FFSILX
ILC183-211445-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
513 AM CDT MON JUL 21 2003

...A FLASH FLOOD WARNING CONTINUES FOR VERMILION COUNTY UNTIL 945 AM
CDT...

AT 513 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINS CONTINUING NEAR JAMAICA TO GEORGETOWN. 2 TO 3 INCHES OF 
RAIN HAS BEEN ESTIMATED SINCE 200 AM.

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.

$$

EH

NNNN

000 
WGUS73 KILX 211122
FFSILX
ILC183-211130-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
622 AM CDT MON JUL 21 2003

...THE FLASH FLOOD WARNING FOR 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.

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.

$$

EH

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 12:21 AM CDT	Severe Thunderstorm Warning	ILX	Knox, Stark	54 min
Jul 21, 1:13 AM CDT	Severe Thunderstorm Warning	ILX	Knox, Peoria, Stark	62 min
Jul 21, 1:30 AM CDT	Severe Thunderstorm Warning	ILX	Marshall	60 min
Jul 21, 1:34 AM CDT	Severe Thunderstorm Warning	ILX	Fulton	26 min
Jul 21, 1:36 AM CDT	Tornado Warning	ILX	Marshall, Stark	54 min
Jul 21, 1:43 AM CDT	Severe Thunderstorm Warning	ILX	Tazewell, Woodford	62 min
Jul 21, 1:58 AM CDT	Severe Thunderstorm Warning	ILX	McLean	62 min
Jul 21, 2:14 AM CDT	Severe Thunderstorm Warning	ILX	Logan	61 min
Jul 21, 2:19 AM CDT	Flash Flood Warning	ILX	Peoria, Tazewell	6 hr
Jul 21, 2:40 AM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Macon	65 min
Jul 21, 2:51 AM CDT	Severe Thunderstorm Warning	ILX	Champaign, Piatt	54 min
Jul 21, 3:18 AM CDT	Flash Flood Warning	ILX	Logan	3 hr
Jul 21, 3:37 AM CDT	Flash Flood Warning	ILX	DeWitt, Macon, Piatt	6 hr
Jul 21, 3:54 AM CDT	Severe Thunderstorm Warning	ILX	Sangamon	51 min
Jul 21, 4:04 AM CDT	Flash Flood Warning	ILX	Douglas	6 hr
Jul 21, 4:09 AM CDT	Severe Thunderstorm Warning	ILX	Coles	51 min
Jul 21, 4:31 AM CDT	Severe Thunderstorm Warning	ILX	Clark, Cumberland	44 min

Nearby

Flash Flood Warnings in Illinois, 2003 Every 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.