Alert archive / Illinois / Flash Flood Warnings in 2003

Flash Flood Warning 53, NWS Lincoln, IL

August 2, 2003Clay County, Illinois

NWS Lincoln, IL issued this flash flood warning at Aug 2, 2003, 10:55 PM CDT for Clay 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
Aug 2, 2003, 10:55 PM CDT (03:55 UTC)
Expired
Aug 3, 2003, 5:00 AM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

County Clay County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.9 hours before the alert went out and 152 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 2003-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 715 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 2003-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 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
715 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1048 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 030356
FFWILX
ILC025-031000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1055 PM CDT SAT AUG 2 2003

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN SOUTH CENTRAL ILLINOIS

* UNTIL 500 AM CDT

* AT 1050 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED VERY HEAVY RAIN HAS FALLEN ACROSS CLAY COUNTY.
  2 TO 3 INCHES OF RAIN HAS BEEN ESTIMATED SINCE 9 PM.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS
  CLAY COUNTY. RAINFALL AMOUNTS WILL LIKELY RANGE FROM 3 TO 4
  INCHES BY 1 AM. THESE RAINFALL AMOUNTS WILL LIKELY PRODUCE FLASH
  FLOODING.

EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING ON FLOOD PRONE
HIGHWAYS...STREETS AND UNDERPASSES. NEVER WALK OR DRIVE INTO FLOODED
AREAS AND ABANDON VEHICLES CAUGHT IN RISING 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.

LAT...LON 3887 8832 3869 8834 3865 8863 3885 8856

$$

BAK
1 follow-up statement
000 
WGUS73 KILX 030754
FFSILX
ILC025-030815-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
250 AM CDT SUN AUG 3 2003

...THE FLASH FLOOD WARNING FOR CLAY COUNTY HAS BEEN CANCELED...

AT 240 AM CDT...THE CLAY COUNTY SHERIFFS DEPARTMENT REPORTED THE
WATER HAD RECEDED ACROSS MOST OF THE COUNTY...WITH NO ADDITIONAL 
REPORTS OF FLOODING RECEIVED OVER THE PAST SEVERAL HOURS. 

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

$$

SMITH
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 7:53 PM CDTSevere Thunderstorm WarningILXClark37 min
Aug 2, 8:47 PM CDTSevere Thunderstorm WarningILXEffingham58 min
Aug 3, 2:13 PM CDTTornado WarningILXMcLean47 min
Aug 3, 4:57 PM CDTSevere Thunderstorm WarningILXLogan63 min
Aug 3, 5:43 PM CDTSevere Thunderstorm WarningILXCrawford47 min
Aug 3, 6:21 PM CDTSevere Thunderstorm WarningILXLawrence54 min
Aug 3, 6:32 PM CDTSevere Thunderstorm WarningILXRichland58 min

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.