Alert archive / Illinois / Flash Flood Warnings in 2008

Flash Flood Warning 7, NWS Lincoln, IL

May 30, 2008McLean County, Tazewell County, Woodford County, Illinois

NWS Lincoln, IL issued this flash flood warning at May 30, 2008, 5:56 PM CDT for McLean County, Tazewell County, Woodford 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 30, 2008, 5:56 PM CDT (22:56 UTC)
Expired
May 30, 2008, 9:00 PM CDT
In force
3 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

Counties McLean County, IL, Tazewell County, IL, Woodford County, IL

The radar

The Lincoln radar (KILX), 64 km from the middle of the area, began a volume at 22:58 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, 10.9 hours before the alert went out and 72 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 2008-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 57 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2008-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 square meters per square second.19395878Sfc1 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
57 J/kg
Mixed-layer CIN
-325 J/kg
Mixed-layer LCL
1164 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 302259
FFWILX
ILC113-179-203-310200-
/O.NEW.KILX.FF.W.0007.080530T2256Z-080531T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
556 PM CDT FRI MAY 30 2008

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN TAZEWELL COUNTY IN CENTRAL ILLINOIS...
  NORTHWESTERN MCLEAN COUNTY IN CENTRAL ILLINOIS...
  SOUTHERN WOODFORD COUNTY IN CENTRAL ILLINOIS...

* UNTIL 900 PM CDT.

* AT 553 PM CDT...FLASH FLOODING WAS REPORTED FROM A THUNDERSTORM   
OVER THE WARNED AREA. DOPPLER RADAR HAS ESTIMATED MORE THAN 2 INCHES 
 OF   RAIN SINCE 3 PM.

THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS THESE 
AREAS. RAINFALL AMOUNTS WILL LIKELY RANGE FROM 2 TO 3 INCHES BY 9 
PM. THESE RAINFALL AMOUNTS WILL LIKELY PRODUCE FLASH FLOODING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...EUREKA...
PEKIN...CARLOCK...CREVE COEUR...DEER CREEK...EAST PEORIA...EL PASO...
GOODFIELD...GRIDLEY...HUDSON...LEXINGTON AND MACKINAW.

FLOODING HAS ALREADY BEEN REPORTED IN FIELDS AROUND THE DEER CREEK 
AREA...WITH IMPASSABLE ROADS ACROSS EASTERN TAZEWELL COUNTY.

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 4064 8863 4047 8969 4069 8959 4072 8955
      4087 8895 4076 8895 4074 8858
TIME...MOT...LOC 2256Z 180DEG 0KT 4062 8946

$$

HJS
2 follow-up statements
000 
WGUS73 KILX 310053
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
752 PM CDT FRI MAY 30 2008

ILC113-179-203-310200-
/O.CON.KILX.FF.W.0007.000000T0000Z-080531T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MCLEAN-TAZEWELL-WOODFORD-
752 PM CDT FRI MAY 30 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
SOUTHERN WOODFORD...NORTHWESTERN MCLEAN AND NORTHERN TAZEWELL
COUNTIES...

AT 745 PM CDT...THE PUBLIC REPORTED A THUNDERSTORM PRODUCING FLASH
FLOODING OVER THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE... WASHINGTON...SECOR...ROANOKE...
LEXINGTON...GRIDLEY...GOODFIELD...EUREKA...EL PASO...EAST PEORIA...
DEER CREEK AND CREVE COEUR

ADDITIONAL RAINFALL AMOUNTS OF UP TO AN INCH ARE POSSIBLE IN THE 
WARNED AREA THROUGH 9 PM.

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 4064 8863 4048 8968 4050 8969 4058 8965
      4058 8963 4069 8960 4069 8958 4072 8956
      4087 8896 4076 8895 4075 8858
TIME...MOT...LOC 0052Z 180DEG 0KT 4062 8946

$$

HJS
000 
WGUS73 KILX 310158
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
856 PM CDT FRI MAY 30 2008

ILC113-179-203-310206-
/O.EXP.KILX.FF.W.0007.000000T0000Z-080531T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MCLEAN-TAZEWELL-WOODFORD-
858 PM CDT FRI MAY 30 2008

...THE FLASH FLOOD WARNING WILL EXPIRE AT 900 PM CDT FOR SOUTHERN
WOODFORD...NORTHWESTERN MCLEAN AND NORTHERN TAZEWELL COUNTIES...

THE FLOODING HAS SUBSIDED...AND LITTLE ADDITIONAL RAINFALL IS 
EXPECTED THE REST OF THE EVENING. THEREFORE...THE FLASH FLOOD 
WARNING FOR SOUTHERN WOODFORD...NORTHWESTERN MCLEAN... AND NORTHERN 
TAZEWELL WILL EXPIRE AT 9 PM.

LAT...LON 4064 8863 4048 8968 4050 8969 4058 8965
      4058 8963 4069 8960 4069 8958 4072 8956
      4087 8896 4076 8895 4075 8858
TIME...MOT...LOC 0156Z 180DEG 0KT 4062 8946

$$

SHIMON

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 2:52 PM CDTAreal Flood AdvisoryILXMcLean, Tazewell, Woodford4 hr
May 30, 3:03 PM CDTTornado WarningILXMcLean27 min
May 30, 4:11 PM CDTSevere Thunderstorm WarningILXVermilion49 min
May 30, 4:14 PM CDTTornado WarningILXCass, Mason, Menard31 min
May 30, 4:25 PM CDTTornado WarningILXMorgan, Scott50 min
May 30, 4:36 PM CDTTornado WarningILXLogan24 min
May 30, 4:36 PM CDTTornado WarningILXVermilion12 min
May 30, 4:59 PM CDTTornado WarningILXDeWitt, Logan, Macon46 min
May 30, 5:08 PM CDTSevere Thunderstorm WarningILXCass38 min
May 30, 5:14 PM CDTTornado WarningILXMorgan, Scott46 min
May 30, 5:31 PM CDTSevere Thunderstorm WarningILXChampaign, McLean, Piatt44 min
May 30, 5:41 PM CDTTornado WarningILXSangamon49 min
May 30, 6:05 PM CDTTornado WarningILXChampaign40 min
May 30, 6:11 PM CDTTornado WarningILXMorgan, Scott49 min
May 30, 6:24 PM CDTTornado WarningILXVermilion36 min
May 30, 6:29 PM CDTSevere Thunderstorm WarningILXCass, Fulton, Mason, Morgan, Schuyler46 min
May 30, 6:32 PM CDTTornado WarningILXChristian, Macon, Sangamon43 min
May 30, 6:34 PM CDTSevere Thunderstorm WarningILXMcLean16 min
May 30, 6:44 PM CDTTornado WarningILXChampaign, Douglas, Edgar, Vermilion31 min
May 30, 6:58 PM CDTTornado WarningILXMorgan, Sangamon47 min
May 30, 6:59 PM CDTTornado WarningILXVermilion35 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.