Alert archive / Illinois / Flash Flood Warnings in 2004

Flash Flood Warning 38, NWS Lincoln, IL

June 15, 2004Logan County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 15, 2004, 9:22 AM CDT for Logan 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: Jun 15, 2004, 9:22 AM CDT (14:22 UTC)
Expired: Jun 15, 2004, 3:15 PM CDT
In force: 6 hr
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Logan County, IL

The radar

The Lincoln radar (KILX), 6 km from the middle of the area, began a volume at 14:21 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, 2.4 hours before the alert went out and 69 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: 149 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 1157 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 151424
FFWILX
ILC107-152015-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
922 AM CDT TUE JUN 15 2004

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LOGAN COUNTY IN CENTRAL ILLINOIS

* UNTIL 315 PM CDT

* AT 916 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN HAS FALLEN ACROSS LOGAN COUNTY...ESPECIALLY IN     
  MOUNT PULASKI...WHERE RAODS ARE FLOODED.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS         
  SOUTHEASTERN LOGAN COUNTY. RAINFALL AMOUNTS WILL LIKELY RANGE FROM 
  1 TO 2 INCHES PER HOUR. 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.

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.

LAT...LON 4028 8927 4028 8917 3992 8915 3993 8949
      3999 8950 3999 8959 4009 8957 4010 8960
      4032 8960 4033 8928

$$

KELLY

2 follow-up statements

000 
WGUS73 KILX 151725
FFSILX
ILC107-152015-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1225 PM CDT TUE JUN 15 2004

...A FLASH FLOOD WARNING CONTINUES FOR LOGAN COUNTY UNTIL 315 PM
CDT...

AT 1225 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINS HAVE MOVED EAST OF LOGAN COUNTY. HOWEVER...MORE 
THUNDERSTORMS WITH HEAVY RAINFALL CONTINUE TO DEVELOP AT LOCATIONS 
SOUTH OF A JACKSONVILLE TO SPRINGFIELD LINE. ADDITIONAL HEAVY 
RAINFALL CAN BE EXPECTED AS THESE STORMS DEVELOP NORTHWARD INTO 
LOGAN COUNTY. AT 1205 PM...LOGAN COUNTY ESDA REPORTED THAT VIADUCT 
FLOODING IN MT.PULASKI CONTINUES...WITH BARRICADES BLOCKING THE 
ROADWAY. MORE RAIN ON ALREADY SATURATED GROUND WILL QUICKLY LEAD TO 
ADDITIONAL 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 4027 8917 3995 8921 4001 8956 4030 8961

$$

PLAHMER

000 
WGUS73 KILX 151904
FFSILX
ILC021-107-115-147-151915-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
203 PM CDT TUE JUN 15 2004

...THE FLASH FLOOD WARNINGS FOR LOGAN...PIATT...MACON AND CHRISTIAN 
COUNTIES HAVE BEEN CANCELLED...

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

LAT...LON 4018 8847 3980 8848 3982 8875 3968 8907
      3940 8907 3940 8946 3993 8919 3995 8943
      4028 8956 4028 8927 4005 8914 4005 8875

$$

PLAHMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 9:30 AM CDT	Flash Flood Warning	ILX	Macon	6 hr
Jun 15, 9:48 AM CDT	Flash Flood Warning	ILX	Christian	6 hr
Jun 15, 10:01 AM CDT	Flash Flood Warning	ILX	Piatt	6 hr

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; radar from the NEXRAD Level II archive.