Alert archive / Illinois / Flash Flood Warnings in 2003

Flash Flood Warning 31, NWS Lincoln, IL

July 9, 2003Piatt County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 9, 2003, 8:21 PM CDT for Piatt 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 9, 2003, 8:21 PM CDT (01:21 UTC)
Expired
Jul 10, 2003, 2:00 AM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

County Piatt County, IL

The radar

The Lincoln radar (KILX), 67 km from the middle of the area, began a volume at 01:21 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, 1.4 hours before the alert went out and 11 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 2003-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3530 joules per kilogram.LCLEL10008507005003002001001 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 2003-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 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
3530 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1110 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 100125
FFWILX
ILC147-100700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
821 PM CDT WED JUL 9 2003

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PIATT COUNTY IN CENTRAL ILLINOIS

* UNTIL 200 AM CDT

* AT 816 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN HAS FALLEN ACROSS ALL OF PIATT COUNTY.  
  3 TO 5 INCHES OF RAIN HAS BEEN ESTIMATED ACROSS NORTHERN PIATT 
  COUNTY NORTH OF DE LAND...AND ALSO SOUTH OF PIATT COUNTY...SOUTH 
  OF BEMENT...SINCE EARLIER TODAY.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS   
  PIATT COUNTY THIS EVENING. RAINFALL AMOUNTS WILL LIKELY RANGE FROM 
  6 TO 8 INCHES ACROSS NORTHERN AND SOUTHERN SECTIONS OF THE COUNTY 
  BY MIDNIGHT...WITH 3 TO 5 INCHES COMMON IN THE CENTRAL PART OF THE 
  COUNTY. 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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO JUDGE HOW
MUCH WATER COVERS ROADWAYS. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS.

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 4021 8848 3983 8848 3981 8874 4023 8863

$$

PLAHMER

NNNN
1 follow-up statement
000 
WGUS73 KILX 100411
FFSILX
ILC039-107-147-100700-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1110 PM CDT WED JUL 9 2003

...A FLASH FLOOD WARNING CONTINUES FOR LOGAN...PIATT AND DE WITT
COUNTIES UNTIL 200 AM CDT...

AT 1110 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAINS CONTINUING TO FALL FROM LINCOLN EAST TO CLINTON TO JUST 
NORTH OF FARMER CITY. DOPPLER RAINFALL ESTIMATES RANGE FROM 1 TO 2 
INCHES IN THESE AREAS OVER THE PAST HOUR...ESPECIALLY OVER NORTHERN
LOGAN 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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO JUDGE HOW
MUCH WATER COVERS ROADWAYS. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS.

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.

$$

SMITH
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 7:02 PM CDTSevere Thunderstorm WarningILXVermilion43 min
Jul 9, 7:04 PM CDTSevere Thunderstorm WarningILXTazewell56 min
Jul 9, 7:12 PM CDTSevere Thunderstorm WarningILXTazewell48 min
Jul 9, 7:13 PM CDTSevere Thunderstorm WarningILXMason62 min
Jul 9, 7:22 PM CDTFlash Flood WarningILXEdgar6 hr
Jul 9, 7:24 PM CDTSevere Thunderstorm WarningILXPeoria66 min
Jul 9, 7:55 PM CDTFlash Flood WarningILXMason6 hr
Jul 9, 8:00 PM CDTSevere Thunderstorm WarningILXDeWitt60 min
Jul 9, 8:00 PM CDTTornado WarningILXMason60 min
Jul 9, 8:40 PM CDTFlash Flood WarningILXDeWitt, Logan5 hr
Jul 9, 9:05 PM CDTFlash Flood WarningILXPeoria, Tazewell6 hr
Jul 9, 9:14 PM CDTFlash Flood WarningILXFulton, Knox6 hr
Jul 9, 9:29 PM CDTFlash Flood WarningILXDouglas6 hr
Jul 9, 9:54 PM CDTTornado WarningILXFulton66 min
Jul 9, 9:55 PM CDTSevere Thunderstorm WarningILXSchuyler50 min
Jul 9, 10:22 PM CDTFlash Flood WarningILXCumberland6 hr
Jul 9, 11:15 PM CDTFlash Flood WarningILXChampaign, McLean, Vermilion, Woodford7 hr
Jul 10, 1:08 AM CDTFlash Flood WarningILXDeWitt, Logan, Mason, Piatt5 hr
Jul 10, 1:30 AM CDTFlash Flood WarningILXEdgar4 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.