Alert archive / Illinois / Flash Flood Warnings in 2003

Flash Flood Warning 42, NWS Lincoln, IL

July 18, 2003Schuyler County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 18, 2003, 6:45 AM CDT for Schuyler 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 18, 2003, 6:45 AM CDT (11:45 UTC)
Expired
Jul 18, 2003, 1:00 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), 112 km from the middle of the area, began a volume at 11:45 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

Davenport, (KDVN), launched 00:00Z, 11.8 hours before the alert went out and 158 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-pSkew-T log-p diagram, Davenport, at 00:00Z on 2003-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2939 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2003-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2939 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
1455 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.7
Supercell composite
11.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 181147
FFWILX
ILC169-181800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
645 AM CDT FRI JUL 18 2003

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 100 PM CDT

* AT 640 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN HAS FALLEN ACROSS SCHUYLER COUNTY OVERNIGHT. 
  UP TO 3 INCHES OF RAINFALL HAS BEEN ESTIMATED SINCE 430 AM.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS   
  SCHUYLER COUNTY THIS MORNING. RAINFALL AMOUNTS WILL LIKELY RANGE 
  FROM 4 TO 6 INCHES BY 10 AM. 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 4027 9047 4007 9045 4012 9092 4028 9093

$$

PLAHMER

NNNN
3 follow-up statements
000 
WGUS73 KILX 181236
FFSILX
ILC169-181800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
735 AM CDT FRI JUL 18 2003

...A FLASH FLOOD WARNING CONTINUES FOR SCHUYLER COUNTY UNTIL 100 PM
CDT...

AT 732 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINS CONTINUING ACROSS ALL OF SCHUYLER COUNTY. 3 TO 5 INCHES 
OF RAIN HAS BEEN ESTIMATED SINCE 430 AM.

RADAR SHOWS THAT HEAVY RAINFALL WILL LIKELY CONTINUE ACROSS SCHUYLER 
COUNTY THROUGH 10 AM. 5 TO 7 INCHES OF RAINFALL WILL BE POSSIBLE AT 
LOCATIONS MAINLY ALONG A LINE FROM BROOKLYN TO RUSHVILLE TO RIPLEY 
AND BEARDSTOWN...WITH 4 TO 6 INCHES POSSIBLE COUNTYWIDE.

THIS IS AN EXTREMELY DANGEROUS FLASH FLOOD SITUATION TAKE IMMEDIATE 
STEPS TO SAVE LIFE AND PROPERTY IF HIGH WATERS THREATEN. MOVE TO 
HIGHER GROUND IF LIVING IN A FLOOD PRONE AREA. NEVER DRIVE OR WALK 
INTO FLOOD WATERS.

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.

$$

PLAHMER

NNNN
000 
WGUS73 KILX 181403
FFSILX
ILC169-181800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
900 AM CDT FRI JUL 18 2003

...A FLASH FLOOD WARNING CONTINUES FOR SCHUYLER COUNTY UNTIL 100 PM
CDT...
...THIS IS A DANGEROUS FLOODING SITUATION...

AT 900 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINS CONTINUING ACROSS ALL OF SCHUYLER COUNTY. 4 TO 8 INCHES 
OF RAIN HAS BEEN ESTIMATED SINCE 430 AM.

AT 852 AM...SCHUYLER COUNTY ESDA REPORTED CITY AND COUNTY ROADS 
FLOODED.

RADAR SHOWS THAT HEAVY RAINFALL WILL LIKELY CONTINUE ACROSS SCHUYLER 
COUNTY THROUGH 11 AM. 5 TO 9 INCHES OF RAINFALL WILL BE POSSIBLE 
COUNTYWIDE.

THIS IS AN EXTREMELY DANGEROUS FLASH FLOOD SITUATION TAKE IMMEDIATE 
STEPS TO SAVE LIFE AND PROPERTY IF HIGH WATERS THREATEN. MOVE TO 
HIGHER GROUND IF LIVING IN A FLOOD PRONE AREA. NEVER DRIVE OR WALK 
INTO FLOOD WATERS.

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.


$$

EH

NNNN
000 
WGUS73 KILX 181506
FFSILX
ILC169-181800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1005 AM CDT FRI JUL 18 2003

...A FLASH FLOOD WARNING CONTINUES FOR SCHUYLER COUNTY UNTIL 100 PM
CDT...

...THIS IS A DANGEROUS FLOODING SITUATION...

AT 1005 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINS CONTINUING OVER SCHUYLER COUNTY.  4 TO 8 INCHES INCHES 
OF RAIN HAS BEEN ESTIMATED SINCE 430 AM..

AT 1000 AM CDT...SCHUYLER COUNTY ESDA REPORTED FLOODED BASEMENTS IN 
RUSHVILLE.

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.

THIS IS AN EXTREMELY DANGEROUS FLASH FLOOD SITUATION. TAKE IMMEDIATE
STEPS TO SAVE LIFE AND PROPERTY IF HIGH WATERS THREATEN. MOVE TO
HIGHER GROUND IF LIVING IN A FLOOD PRONE AREA. NEVER DRIVE OR WALK
INTO FLOOD WATERS.

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.

IssuedProductOfficeCountiesLasted
Jul 17, 10:42 PM CDTSevere Thunderstorm WarningILXVermilion63 min
Jul 17, 11:48 PM CDTSevere Thunderstorm WarningILXChampaign, Vermilion57 min
Jul 18, 1:25 AM CDTSevere Thunderstorm WarningILXMcLean35 min
Jul 18, 2:01 AM CDTSevere Thunderstorm WarningILXChampaign44 min
Jul 18, 2:59 AM CDTFlash Flood WarningILXChampaign6 hr
Jul 18, 3:22 AM CDTSevere Thunderstorm WarningILXLogan53 min
Jul 18, 3:39 AM CDTSevere Thunderstorm WarningILXMason66 min
Jul 18, 4:11 AM CDTSevere Thunderstorm WarningILXMacon64 min
Jul 18, 4:45 AM CDTSevere Thunderstorm WarningILXSchuyler60 min
Jul 18, 4:49 AM CDTSevere Thunderstorm WarningILXChristian56 min
Jul 18, 5:08 AM CDTTornado WarningILXChristian52 min
Jul 18, 5:17 AM CDTSevere Thunderstorm WarningILXMason58 min
Jul 18, 5:29 AM CDTSevere Thunderstorm WarningILXCass61 min
Jul 18, 5:38 AM CDTSevere Thunderstorm WarningILXMenard37 min
Jul 18, 5:41 AM CDTTornado WarningILXShelby49 min
Jul 18, 5:45 AM CDTTornado WarningILXScott45 min
Jul 18, 6:00 AM CDTTornado WarningILXChristian45 min
Jul 18, 6:40 AM CDTFlash Flood WarningILXChristian, Logan6 hr
Jul 18, 6:45 AM CDTSevere Thunderstorm WarningILXChristian, Shelby60 min
Jul 18, 7:05 AM CDTFlash Flood WarningILXCass, Morgan, Scott6 hr
Jul 18, 7:07 AM CDTSevere Thunderstorm WarningILXChristian, Shelby38 min
Jul 18, 7:18 AM CDTSevere Thunderstorm WarningILXCass, Morgan, Schuyler, Scott57 min
Jul 18, 8:16 AM CDTSevere Thunderstorm WarningILXCass, Morgan, Sangamon, Scott59 min
Jul 18, 8:50 AM CDTFlash Flood WarningILXShelby6 hr

Nearby

Flash Flood Warnings in Illinois, 2003Every 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.