Alert archive / Illinois / Flash Flood Warnings in 2007

Flash Flood Warning 7, NWS Lincoln, IL

July 17, 20074 counties in Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 17, 2007, 7:40 AM CDT for 4 counties in Illinois. It was in force for 6 hr. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 17, 2007, 7:40 AM CDT (12:40 UTC)
Expired
Jul 17, 2007, 1:30 PM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Coles County, IL, Cumberland County, IL, Moultrie County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 107 km from the middle of the area, began a volume at 12:41 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.

What was reported inside it

TimeReportWhereRemark
Jul 17, 7:45 AM CDTFLASH FLOOD8 Sw Mattoon, ILVEHICLE OFF I-57 SUBMERGED IN FLOODED DITCH
Jul 17, 7:45 AM CDTFLASH FLOODMattoon, ILSOME STREETS IN MATTOON CLOSED DUE TO FLOODING
Jul 17, 9:30 AM CDTHEAVY RAIN 2.93Mattoon, ILRAINFALL SINCE 0412 CDT. WATER STILL OVER SOUTH 9TH ST AND OLD STATE ROAD SOUTH OF MATTOON. REPORT FROM SIGNIFICANT WEATHER OBSERVER PROGRAM NETWORK

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 0.7 hours before the alert went out and 78 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 2007-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 262 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 2007-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 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
262 J/kg
Mixed-layer CIN
-235 J/kg
Mixed-layer LCL
1118 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 171242
FFWILX
ILC029-035-139-173-171830-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
740 AM CDT TUE JUL 17 2007

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN COLES COUNTY IN EAST CENTRAL ILLINOIS...
  NORTHWESTERN CUMBERLAND COUNTY IN EAST CENTRAL ILLINOIS...
  EASTERN SHELBY COUNTY IN CENTRAL ILLINOIS...
  SOUTHEASTERN MOULTRIE COUNTY IN CENTRAL ILLINOIS...

* UNTIL 130 PM CDT.

* AT 740 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM THUNDERSTORMS THAT HAVE MOVED OVER THE WARNED 
  AREA. DOPPLER RADAR ESTIMATES THAT 3 TO 5 INCHES OF RAIN HAVE
  OCCURRED IN THE WARNED AREA.

THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS THESE
AREAS AT TIMES THROUGH LATE MORNING. ADDITIONAL RAINFALL AMOUNTS 
WILL LIKELY RANGE FROM 1 TO 2 INCHES BY LATE MORNING. THESE RAINFALL 
AMOUNTS WILL LIKELY PRODUCE ADDITIONAL FLASH FLOODING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...MATTOON...
WINDSOR...GAYS...NEOGA AND LOCATIONS ALONG ILLINOIS ROUTE 16
BETWEEN WINDSOR AND MATTOON.

COOPERATIVE OBSERVER REPORTS INDICATE THAT 2.50 TO 4.00 INCHES OF 
RAIN HAVE FALLEN SINCE 430 AM. SEVERAL SMALL CREEKS AND ROADS ARE 
FLOODED IN THE WARNED AREA...PARTICULARLY THE FLAT BRANCH AND SAND 
CREEK NEAR WINDSOR.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS.

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

LAT...LON 3929 8847 3930 8830 3949 8836 3950 8853
      3947 8863

$$

MILLER
2 follow-up statements
000 
WGUS73 KILX 171340
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
840 AM CDT TUE JUL 17 2007

ILC029-035-139-173-171830-
COLES-CUMBERLAND-MOULTRIE-SHELBY-
840 AM CDT TUE JUL 17 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR
SOUTHEASTERN MOULTRIE...EASTERN SHELBY...NORTHWESTERN CUMBERLAND AND
SOUTHWESTERN COLES COUNTIES...

AT 840 AM CDT...RADAR INDICATED THAT THE THUNDERSTORMS THAT PRODUCED
THE FLOODING HAVE MOVED OUT OF THE WARNED AREA. HOWEVER...FLOODING
CONTINUED TO AFFECT MANY LOCATIONS. THE COLES COUNTY EMERGENCY MANAGER
REPORTED THAT AT 745 AM...A VEHICLE WENT OFF OF I-57 NEAR MILE MARKER 
181 AND WAS SUBMERGED IN A FLOODED DITCH. ALSO...SEVERAL STREETS WERE 
CLOSED IN MATTOON DUE TO FLOODING.

LOCATIONS IN THE WARNING INCLUDE... MATTOON...WINDSOR...GAYS...AND
NEOGA.

THIS WARNING ALSO INCLUDES INTERSTATE 57 BETWEEN MILE MARKERS 174 
AND 186...ILLINOIS ROUTE 16 BETWEEN WINDSOR AND MATTOON...AND 
ILLINOIS ROUTE 32 FROM WINDSOR TO THE SHELBY COUNTY LINE.

ADDITIONAL RAINFALL AMOUNTS AROUND 1 TO 2 INCHES ARE POSSIBLE IN
THE WARNED AREA BETWEEN 1030 AM AND NOON...WHICH WILL AGGRAVATE
THE FLOODING.

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS WATER COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

LAT...LON 3929 8847 3930 8830 3949 8836 3950 8853
      3947 8863

$$

MILLER
000 
WGUS73 KILX 171536
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1035 AM CDT TUE JUL 17 2007

ILC029-035-139-173-171830-
COLES-CUMBERLAND-MOULTRIE-SHELBY-
1035 AM CDT TUE JUL 17 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR
SOUTHEASTERN MOULTRIE...EASTERN SHELBY...NORTHWESTERN CUMBERLAND AND
SOUTHWESTERN COLES COUNTIES...

AT 1030 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF THUNDERSTORMS WITH HEAVY RAINS OVER NORTHERN PARTS OF SHELBY 
AND MOULTRIE COUNTIES AND MOVING SOUTHEAST AT 25 MPH. THIS LINE OF 
THUNDERSTORMS WILL SPREAD SOUTHEAST ACROSS THE WARNED AREA THROUGH 
1130 AM. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE 
THROUGH 1 PM AND WILL AGGRAVATE FLOODING CONDITIONS.

LOCATIONS IN THE WARNING INCLUDE... MATTOON...WINDSOR AND NEOGA

THIS WARNING ALSO INCLUDES INTERSTATE 57 BETWEEN MILE MARKERS 174 
AND 186...ILLINOIS ROUTE 16 BETWEEN WINDSOR AND MATTOON...AND 
ILLINOIS ROUTE 32 FROM WINDSOR TO THE SHELBY COUNTY LINE.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE 
BANKS OF CREEKS AND STREAMS.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

LAT...LON 3929 8847 3930 8830 3949 8836 3950 8853
      3947 8863

$$

KH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 10:00 AM CDTSevere Thunderstorm WarningILXChampaign45 min
Jul 17, 11:45 AM CDTFlash Flood WarningILXColes, Cumberland, Moultrie, Shelby4 hr

Nearby

Flash Flood Warnings in Illinois, 2007Every flash flood warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.