Alert archive / Illinois / Flash Flood Warnings in 2003

Flash Flood Warning 41, NWS Lincoln, IL

July 18, 2003Christian County, Logan County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 18, 2003, 6:40 AM CDT for Christian County, 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
Jul 18, 2003, 6:40 AM CDT (11:40 UTC)
Expired
Jul 18, 2003, 12:30 PM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

Counties Christian County, IL, Logan County, IL

The radar

The Lincoln radar (KILX), 25 km from the middle of the area, began a volume at 11:40 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 00:00Z, 11.7 hours before the alert went out and 65 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, Lincoln, IL at 00:00Z on 2003-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2256 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, Lincoln, IL at 00:00Z on 2003-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 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
2256 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
1630 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.1
Supercell composite
4.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 181140
FFWILX
ILC021-107-181730-

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

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 1230 PM CDT

* AT 635 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN HAS FALLEN IN A LINE FROM BROADWELL TO MOUNT 
  PULASKI TO MOUNT AUBURN TO TAYLORVILLE. UPWARDS OF 3 INCHES OF 
  RAIN HAS BEEN REPORTED SINCE 3 AM.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS LOGAN 
  AND CHRISTIAN COUNTIES. RAINFALL AMOUNTS WILL LIKELY RANGE FROM
  4 TO 6 INCHES BY 9 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 4030 8920 3994 8923 3967 8922 3938 8906
          3939 8951 3984 8924 3996 8926 4015 8947
          4033 8964

$$

PLAHMER

NNNN
6 follow-up statements
000 
WGUS73 KILX 181311
FFSILX
ILC021-107-181730-

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

...A FLASH FLOOD WARNING CONTINUES FOR LOGAN AND CHRISTIAN COUNTIES
UNTIL 1230 AM CDT...

AT 810 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINS CONTINUING ACROSS SOUTHERN LOGAN COUNTY...WITH RAINS 
EXPECTED TO MOVE BACK INTO CHRISTIAN COUNTY BY 830 AM. 2 TO 4 INCHES 
OF RAIN HAS BEEN ESTIMATED AT LOCATIONS FROM BROADWELL TO MOUNT 
PULASKI TO MOUNT AUBURN TO TAYLORVILLE SINCE 4 AM.

AT 630 AM...CHRISTIAN COUNTY SHERIFF REPORTED ROUTE 16 IMPASSABLE 
DUE TO WATER OVER THE ROAD. ALSO...LOGAN COUNTY ESDA REPORTED ROUTE 
121 FLOODED AT THE RAILROAD VIADUCT IN MOUNT PULASKI.

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.

$$

PLAHMER

NNNN
000 
WGUS73 KILX 181427
FFSILX
ILC107-181730-

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

...A FLASH FLOOD WARNING CONTINUES FOR LOGAN COUNTY UNTIL 1230 PM 
CDT...

AT 907 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES 
THAT ADDITIONAL THUNDERSTORMS WILL DEVELOP AND MOVE ACROSS ALREADY 
SATURATED GROUNDS FROM EARLIER RAINFALL. 

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.

$$

EH

NNNN
000 
WGUS73 KILX 181418
FFSILX
ILC021-181730-

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

...A FLASH FLOOD WARNING CONTINUES FOR CHRISTIAN COUNTY UNTIL 1230 PM
CDT...

AT 914 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINS CONTINUING ACROSS CHRISTIAN COUNTY. THE HEAVIEST 
RAINFALL HAS FALLEN MAINLY SOUTH AND EAST OF A VANDERVILLE TO 
STONINGTON LINE. 2 TO 5 INCHES OF RAIN HAS BEEN ESTIMATED SINCE 4 AM.

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.

$$

EH

NNNN
000 
WGUS73 KILX 181607
FFSILX
ILC107-181630-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1107 AM CDT FRI JUL 18 2003

...THE FLASH FLOOD WARNING FOR LOGAN COUNTY HAS BEEN CANCELLED...

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

$$

GOETSCH

NNNN
000 
WGUS73 KILX 181624
FFSILX
ILC021-181730-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1122 AM CDT FRI JUL 18 2003

...A FLASH FLOOD WARNING CONTINUES FOR CHRISTIAN COUNTY UNTIL 1230 PM
CDT...

AT 1113 AM...CHRISTIAN COUNTY SHERIFF REPORTED FLOODED ROADS THAT 
CAUSED ROAD CLOSURES IN SOUTHEAST CHRISTIAN...SOUTHWEST OF ROSAMOND.

NATIONAL WEATHER SERVICE DOPPLER RADAR AT 1120 AM INDICATED MODERATE 
RAINS WILL CONTINUE OVER THE AREA THROUGH NOON. THEREFORE THE FLASH 
FLOOD WARNING CONTINUES UNTIL 1230 PM.

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.

$$

GOETSCH

NNNN
000 
WGUS73 KILX 181747
FFSILX
ILC021-181800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1240 PM CDT FRI JUL 18 2003

...THE FLASH FLOOD WARNING FOR CHRISTIAN 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.

$$

GOETSCH

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, 6:45 AM CDTFlash Flood WarningILXSchuyler6 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.