Alert archive / Illinois / Flash Flood Warnings in 2008

Flash Flood Warning 41, NWS Lincoln, IL

July 8, 2008Christian County, Shelby County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 8, 2008, 6:48 PM CDT for Christian County, Shelby 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
Jul 8, 2008, 6:48 PM CDT (23:48 UTC)
Expired
Jul 8, 2008, 9:19 PM CDT
In force
3 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

Counties Christian County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 98 km from the middle of the area, began a volume at 23:49 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, 11.8 hours before the alert went out and 87 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 2008-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1492 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 2008-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
1492 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 082350
FFWILX
ILC021-173-090245-
/O.NEW.KILX.FF.W.0041.080708T2348Z-080709T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
648 PM CDT TUE JUL 8 2008

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SHELBY COUNTY IN CENTRAL ILLINOIS...
  SOUTHEASTERN CHRISTIAN COUNTY IN CENTRAL ILLINOIS...

* UNTIL 945 PM CDT.

* AT 644 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN THUNDERSTORMS OVER THE WARNED AREA. DOPPLER
  RADAR HAS ESTIMATED 2 TO 3 INCHES OF RAINFALL SINCE 400 PM.

THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS THESE
AREAS. RAINFALL AMOUNTS WILL LIKELY RANGE FROM 3 TO 4 INCHES BY
800 PM. THESE RAINFALL AMOUNTS WILL LIKELY PRODUCE FLASH FLOODING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...SHELBYVILLE...
COWDEN...LAKEWOOD...PANA...STEWARDSON...TOWER HILL...WESTERVELT AND
WINDSOR.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

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

LAT...LON 3922 8849 3923 8913 3936 8913 3935 8944
      3951 8905 3951 8864 3947 8860 3945 8859
      3945 8850 3944 8848

$$

CHURCHILL
1 follow-up statement
000 
WGUS73 KILX 090219
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
919 PM CDT TUE JUL 8 2008

ILC021-173-090224-
/O.CAN.KILX.FF.W.0041.000000T0000Z-080709T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHRISTIAN-SHELBY-
919 PM CDT TUE JUL 8 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHEASTERN
CHRISTIAN AND SHELBY COUNTIES...

HEAVY RAINS HAVE ENDED ACROSS THE WARNED AREA...ENDING THE IMMEDIATE 
FLASH FLOODING THREAT.

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

LAT...LON 3922 8849 3923 8913 3936 8913 3935 8944
      3951 8905 3951 8864 3947 8860 3945 8859
      3945 8850 3944 8848

$$

BAK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 3:45 PM CDTFlash Flood WatchILXChristian, Macon, Morgan, Moultrie, Sangamon, Scott and 1 more12 hr
Jul 8, 4:13 PM CDTSevere Thunderstorm WarningILXLogan, Mason, Menard47 min
Jul 8, 4:55 PM CDTSevere Thunderstorm WarningILXDeWitt, Logan, Macon65 min
Jul 8, 5:09 PM CDTSevere Thunderstorm WarningILXChristian, Macon, Moultrie, Piatt, Sangamon, Shelby66 min
Jul 8, 5:33 PM CDTSevere Thunderstorm WarningILXChampaign, Douglas, Piatt57 min
Jul 8, 5:41 PM CDTSevere Thunderstorm WarningILXChristian, Coles, Cumberland, Moultrie, Shelby64 min
Jul 8, 5:51 PM CDTSevere Thunderstorm WarningILXColes, Douglas, Moultrie39 min
Jul 8, 6:13 PM CDTTornado WarningILXColes, Douglas32 min
Jul 8, 6:23 PM CDTSevere Thunderstorm WarningILXClark, Coles, Cumberland, Edgar52 min
Jul 8, 6:38 PM CDTSevere Thunderstorm WarningILXColes, Douglas, Edgar30 min

Nearby

Flash Flood Warnings in Illinois, 2008Every flash flood warning in 2008

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.