Alert archive / Illinois / Flash Flood Warnings in 2003

Flash Flood Warning 3, NWS Lincoln, IL

May 6, 20034 counties in Illinois

NWS Lincoln, IL issued this flash flood warning at May 6, 2003, 11:55 PM CDT for 4 counties in 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: May 6, 2003, 11:55 PM CDT (04:55 UTC)
Expired: May 7, 2003, 4:00 AM CDT
In force: 4 hr
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

Counties Clay County, IL, Crawford County, IL, Lawrence County, IL, Richland County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 4.9 hours before the alert went out and 154 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: 208 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 1589 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 070500
FFWILX
ILC025-033-101-159-070900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1155 PM CDT TUE MAY 6 2003

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAWFORD COUNTY IN EAST CENTRAL ILLINOIS
  CLAY COUNTY IN SOUTH CENTRAL ILLINOIS
  RICHLAND COUNTY IN SOUTHEAST ILLINOIS
  LAWRENCE COUNTY IN SOUTHEAST ILLINOIS

* UNTIL 400 AM CDT

* AT 1151 PM CDT...MINOR FLOODING WAS REPORTED AT LAWRENCEVILLE AND
  ON ROUTE 50 NEAR ZENIA.  NATIONAL WEATHER SERVICE DOPPLER RADAR    
  ESTIMATED THAT ONE TO THREE INCHES OF RAIN HAD FALLEN OVER THE
  AREA SINCE 1000 PM.  

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS
  SOUTHEAST ILLINOIS. RAINFALL AMOUNTS WILL LIKELY RANGE
  FROM TWO TO FOUR INCHES BY 200 AM. THESE RAINFALL AMOUNTS WILL
  LIKELY PRODUCE FLASH FLOODING.

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 3907 8769 3864 8768 3869 8863 3886 8793

$$

13

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 8:14 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Macon	46 min
May 6, 8:51 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan	39 min
May 6, 9:10 PM CDT	Tornado Warning	ILX	DeWitt	35 min
May 6, 9:44 PM CDT	Severe Thunderstorm Warning	ILX	Douglas	46 min
May 6, 9:52 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	38 min
May 6, 10:19 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Coles, Cumberland	41 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.