Alert archive / Illinois / Flash Flood Warnings in 2005

Flash Flood Warning 8, NWS Lincoln, IL

May 11, 2005Christian County, Macon County, Illinois

NWS Lincoln, IL issued this flash flood warning at May 11, 2005, 6:23 PM CDT for Christian County, Macon County, Illinois. It was in force for 3 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 11, 2005, 6:23 PM CDT (23:23 UTC)
Expired
May 11, 2005, 9:30 PM CDT
In force
3 hr
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

Counties Christian County, IL, Macon County, IL

The radar

The Lincoln radar (KILX), 54 km from the middle of the area, began a volume at 23:23 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, 11.4 hours before the alert went out and 67 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 12:00Z on 2005-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1689 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 12:00Z on 2005-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 148 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
1689 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1125 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
148 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 112325
FFWILX
ILC021-115-120230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
623 PM CDT WED MAY 11 2005

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN CHRISTIAN COUNTY IN CENTRAL ILLINOIS
  SOUTHWESTERN MACON COUNTY IN CENTRAL ILLINOIS

* UNTIL 930 PM CDT

* AT 617 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
  DOPPLER RADAR ESTIMATED UP TO 3 INCHES OF RAINFALL NEAR
  BLUE MOUND AND STONINGTON.

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
  WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
  FLOODING TO OCCUR. LARGE AMOUNTS OF HAIL WILL LIKELY BLOCK NORMAL
  RUNOFF CHANNELS LEADING TO ADDITIONAL FLOODING. SOME LOCATIONS
  THAT WILL EXPERIENCE FLOODING INCLUDE...BLUE MOUND AND STONINGTON.

A FLASH FLOODING WARNING MEANS THAT FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

REPORT ANY FLOODING TO YOUR LOCAL EMERGENCY MANAGER...OR THE NEAREST
LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 3975 8904 3961 8905 3962 8923 3973 8922

$$

BARKER
1 follow-up statement
000 
WGUS73 KILX 120037
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
734 PM CDT WED MAY 11 2005

ILC021-115-120230-
MACON IL-CHRISTIAN IL-
734 PM CDT WED MAY 11 2005

...THE FLASH FLOOD WARNING CONTINUES FOR NORTHEAST CHRISTIAN
AND SOUTHWEST MACON COUNTIES UNTIL 930 PM CDT...

AT 727 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
FLASH FLOODING WAS OCCURRING IN THE VICINITY OF BLUE MOUND.  EMERGENCY
MANAGEMENT REPORTED THAT 3.8 INCHES HAD FALLEN IN BLUE MOUND SINCE 5 PM.
HIGHWAY 48 SOUTH OF BLUE MOUND WAS UNDER WATER.

REPORT ANY FLOODING TO YOUR LOCAL EMERGENCY MANAGER...OR THE NEAREST
LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 3975 8904 3961 8905 3962 8923 3973 8922

$$

BARKER

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 2:57 PM CDTSevere Thunderstorm WarningILXEdgar52 min
May 11, 5:23 PM CDTSevere Thunderstorm WarningILXDeWitt, Macon25 min
May 11, 5:29 PM CDTSevere Thunderstorm WarningILXChristian, Macon, Shelby46 min
May 11, 5:33 PM CDTSevere Thunderstorm WarningILXEdgar59 min
May 11, 5:34 PM CDTSevere Thunderstorm WarningILXSangamon57 min
May 11, 5:38 PM CDTSevere Thunderstorm WarningILXDouglas, Moultrie, Piatt67 min
May 11, 6:05 PM CDTSevere Thunderstorm WarningILXMorgan41 min
May 11, 6:13 PM CDTSevere Thunderstorm WarningILXChristian, Macon64 min
May 11, 6:20 PM CDTFlash Flood WarningILXEdgar3 hr
May 11, 6:29 PM CDTFlash Flood WarningILXMoultrie3 hr

Nearby

Flash Flood Warnings in Illinois, 2005Every flash flood warning in 2005

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.