Alert archive / Illinois / Flash Flood Warnings in 2004

Flash Flood Warning 59, NWS Lincoln, IL

August 25, 2004Schuyler County, Illinois

NWS Lincoln, IL issued this flash flood warning at Aug 25, 2004, 2:49 PM CDT for Schuyler County, Illinois. It was in force for 6 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 25, 2004, 2:49 PM CDT (19:49 UTC)
Expired: Aug 25, 2004, 8:45 PM CDT
In force: 6 hr
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Schuyler County, IL

The radar

The Lincoln radar (KILX), 109 km from the middle of the area, began a volume at 19:49 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.

What was reported inside it

Time	Report	Where	Remark
Aug 25, 4:41 PM CDT	FLASH FLOOD	Rushville, IL	SEVERAL COUNTY ROADS FLOODED.
Aug 25, 4:41 PM CDT	FLASH FLOOD	Rushville, IL	SEVERAL COUNTY ROADS FLOODED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.8 hours before the alert went out and 171 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: 1166 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 777 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 179 m²/s²
0-3 km storm-relative helicity: 201 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 251951
FFWILX
ILC169-260145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
249 PM CDT WED AUG 25 2004

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SCHUYLER COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 845 PM CDT

* AT 243 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN HAS FALLEN OVER WESTERN SCHUYLER COUNTY. IN 
  ADDITION...RADAR INDICATED THAT THUNDERSTORMS WITH HEAVY RAINFALL 
  WILL BE MOVING INTO WESTERN SCHUYLER COUNTY SOON.

* RAINFALL AMOUNTS WILL LIKELY RANGE FROM 2 TO 4 INCHES BY 5 PM. 
  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.

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 9091 4027 9047 4018 9044 4019 9021
      4013 9038 4002 9045 3999 9052 3999 9060
      4002 9060 4005 9069 4007 9067 4009 9071
      4012 9071 4011 9092

$$

KELLY

NNNN

2 follow-up statements

000 
WGUS73 KILX 252140
FFSILX
ILC169-260145-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
437 PM CDT WED AUG 25 2004

...A FLASH FLOOD WARNING CONTINUES FOR SCHUYLER COUNTY UNTIL 845 PM
CDT...

AT 437 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINS CONTINUING EAST OF RUSHVILLE. 3 TO 4 INCHES OF RAIN HAS 
BEEN ESTIMATED SINCE 130 PM. ADDITIONAL THUNDERSTORMS ARE EXPECTED 
TO DEVELOP INTO THE EARLY EVENING HOURS ACROSS SCHUYLER COUNTY.

AT 415 PM CDT...SCHUYLER REPORTED HIGH WATER ON A FEW COUNTY ROADS 
IN SCHUYLER COUNTY.  

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 9091 4027 9047 4018 9044 4019 9021
      4013 9038 4002 9045 3999 9052 3999 9060
      4002 9060 4005 9069 4007 9067 4009 9071
      4012 9071 4011 9092

$$

13

000 
WGUS73 KILX 260145
FFSILX
ILC169-260200-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
845 PM CDT WED AUG 25 2004

...THE FLASH FLOOD WARNING FOR SCHUYLER COUNTY IS BEING ALLOWED TO
EXPIRE...

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

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 4014 9086 3999 9056 4017 9047 4027 9078

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 25, 10:56 AM CDT	Severe Thunderstorm Warning	ILX	Fulton, Mason	64 min
Aug 25, 1:02 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	58 min
Aug 25, 2:01 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Menard, Morgan, Sangamon	59 min
Aug 25, 3:07 PM CDT	Flash Flood Warning	ILX	Cass, Morgan, Scott	6 hr
Aug 25, 3:42 PM CDT	Flash Flood Warning	ILX	Mason	6 hr
Aug 25, 4:07 PM CDT	Severe Thunderstorm Warning	ILX	Mason	38 min
Aug 25, 4:30 PM CDT	Flash Flood Warning	ILX	Menard	6 hr
Aug 25, 5:37 PM CDT	Flash Flood Warning	ILX	Logan, Sangamon	6 hr
Aug 25, 5:52 PM CDT	Flash Flood Warning	ILX	DeWitt, McLean, Macon	6 hr
Aug 25, 5:55 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Sangamon	65 min
Aug 25, 6:40 PM CDT	Flash Flood Warning	ILX	Christian	6 hr
Aug 25, 6:45 PM CDT	Flash Flood Warning	ILX	Tazewell	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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.