Alert archive / Illinois / Flash Flood Warnings in 2004

Flash Flood Warning 32, NWS Lincoln, IL

May 30, 2004Effingham County, Illinois

NWS Lincoln, IL issued this flash flood warning at May 30, 2004, 11:23 PM CDT for Effingham 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: May 30, 2004, 11:23 PM CDT (04:23 UTC)
Expired: May 31, 2004, 3:00 AM CDT
In force: 4 hr
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Effingham County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 4.4 hours before the alert went out and 118 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: 7 J/kg
Mixed-layer CIN: -270 J/kg
Mixed-layer LCL: 845 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: -89 m²/s²
0-3 km storm-relative helicity: -31 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 310423
FFWILX
ILC049-310800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1123 PM CDT SUN MAY 30 2004

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS EXTENDED THE 

* FLASH FLOOD WARNING FOR...
  EFFINGHAM COUNTY IN SOUTH CENTRAL ILLINOIS

* UNTIL 300 AM CDT

* AT 1115 PM CDT...FLASH FLOODING WAS REPORTED AT THE WEST FAYETTE
  RIVER BOTTOMS...WITH A RESCUE FROM A VEHICLE AT THAT LOCATION AT 
  1030 PM. NUMEROUS ROADWAYS ACROSS THE COUNTY REMAIN CLOSED DUE TO 
  HIGH WATER LEVELS. NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWS 
  THAT THE HEAVY RAINFALL FROM EARLIER THIS EVENING HAS SHIFTED EAST
  INTO INDIANA. HOWEVER...RADAR ESTIMATED THAT 2 TO 4 INCHES OF RAIN
  FELL OVER MUCH OF EFFINGHAM COUNTY EARLIER IN THE EVENING...CAUSING
  A CONTINUING FLASH FLOOD THREAT.

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 3919 8839 3894 8839 3894 8878 3920 8879

$$

PLAHMER

NNNN

1 follow-up statement

000 
WGUS73 KILX 310806
FFSILX
ILC049-310815-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
305 AM CDT MON MAY 31 2004

...THE FLASH FLOOD WARNING FOR EFFINGHAM COUNTY HAS BEEN ALLOWED TO 
EXPIRE...

THE HEAVY RAINFALL AND FLOOD THREAT HAS ENDED ACROSS THE WARNED AREA.
THE EFFINGHAM COUNTY SHERRIFS OFFICE REPORTS ALL MAIN ROADS CLEAR 
AND THERE HAVE BEEN NO FURTHER REPORTS OF FLOODING. THEREFORE...THE 
FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE.


LAT...LON 3918 8840 3893 8838 3893 8879 3919 8879

$$

CHURCHILL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 7:08 PM CDT	Tornado Warning	ILX	Clay	52 min
May 30, 7:12 PM CDT	Flash Flood Warning	ILX	Clay, Crawford, Richland	6 hr
May 30, 7:19 PM CDT	Flash Flood Warning	ILX	Jasper, Lawrence	6 hr
May 30, 7:21 PM CDT	Flash Flood Warning	ILX	Champaign, Vermilion	6 hr
May 30, 7:24 PM CDT	Tornado Warning	ILX	Vermilion	66 min
May 30, 7:28 PM CDT	Tornado Warning	ILX	Jasper, Richland	62 min
May 30, 7:37 PM CDT	Tornado Warning	ILX	Crawford, Lawrence	53 min
May 31, 6:30 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	60 min
May 31, 6:53 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Morgan, Scott	52 min
May 31, 6:59 PM CDT	Severe Thunderstorm Warning	ILX	Fulton	61 min

Nearby

Flash Flood Warnings in Illinois, 2004 Every 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.