Alert archive / Illinois / Flash Flood Warnings in 2011

Flash Flood Warning 28, NWS Lincoln, IL

June 2, 2011Cass County, Morgan County, Scott County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 2, 2011, 6:54 AM CDT for Cass County, Morgan County, Scott 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
Jun 2, 2011, 6:54 AM CDT (11:54 UTC)
Expired
Jun 2, 2011, 10:20 AM CDT
In force
3 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

Counties Cass County, IL, Morgan County, IL, Scott County, IL

The radar

The Lincoln radar (KILX), 99 km from the middle of the area, began a volume at 11:58 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 00:00Z, 11.9 hours before the alert went out and 157 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 2011-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2011-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
56 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.

667 
WGUS53 KILX 021154
FFWILX
ILC017-137-171-021600-
/O.NEW.KILX.FF.W.0028.110602T1154Z-110602T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
654 AM CDT THU JUN 2 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MORGAN COUNTY IN WEST CENTRAL ILLINOIS...
  SCOTT COUNTY IN WEST CENTRAL ILLINOIS...
  SOUTHERN CASS COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 1100 AM CDT

* AT 652 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE   
  WARNED AREA. RAINFALL ESTIMATES OF 2 TO 3 INCHES ARE EXPECTED FROM 
  SOME STORMS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  JACKSONVILLE...WINCHESTER...ALEXANDER...ALSEY...ARENZVILLE...
  ASHLAND...BLUFFS...CHAPIN...EXETER...FRANKLIN...LITERBERRY...
  MANCHESTER...MEREDOSIA...MURRAYVILLE...NAPLES...WAVERLY AND
  WOODSON.

THIS WARNING EXTENDS AND REPLACED THE PREVIOUS WARNING ISSUED 
FOR NORTHERN SCOTT AND WESTERN MORGAN COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

&&

LAT...LON 3982 9058 3985 9059 3997 9052 3989 9000
      3971 8998 3956 8992 3952 8993 3952 9058
      3958 9059 3970 9065

$$

GOETSCH
2 follow-up statements
979 
WGUS73 KILX 021218
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
718 AM CDT THU JUN 2 2011

ILC017-137-171-021600-
/O.CON.KILX.FF.W.0028.000000T0000Z-110602T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORGAN IL-SCOTT IL-CASS IL-
718 AM CDT THU JUN 2 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN CASS...SCOTT
AND MORGAN COUNTIES UNTIL 1100 AM CDT...

AT 710 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED
TO SHOW THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED 
AREA. RAINFALL ESTIMATES OF 2 TO 3 INCHES ARE EXPECTED FROM 
THESE STORMS.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
JACKSONVILLE...WINCHESTER...ALEXANDER...ALSEY...ARENZVILLE...
ASHLAND...BLUFFS...CHAPIN...EXETER...FRANKLIN...LITERBERRY...
MANCHESTER...MEREDOSIA...MURRAYVILLE...NAPLES...WAVERLY AND WOODSON.

AT 705 AM...MORGAN COUNTY SHERIFF OFFICIALS REPORTED WATER OF THE 
HIGHWAY...AT THE INTERSECTION OF STATE ROUTE 104 AND 67...ABOUT 
5 MILES EAST OF MEREDOSIA. IDOT OFFICIALS WERE AT THE SCENE WITH 
BARRACADES.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE ALSO SUBJECT TO FLOODING.

&&

LAT...LON 3982 9058 3985 9059 3997 9052 3989 9000
      3971 8998 3956 8992 3952 8993 3952 9058
      3958 9059 3970 9065

$$

GOETSCH
588 
WGUS73 KILX 021520
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1020 AM CDT THU JUN 2 2011

ILC017-137-171-021535-
/O.CAN.KILX.FF.W.0028.000000T0000Z-110602T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORGAN IL-SCOTT IL-CASS IL-
1020 AM CDT THU JUN 2 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN CASS...
SCOTT AND MORGAN COUNTIES IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3982 9058 3985 9059 3997 9052 3989 9000
      3971 8998 3956 8992 3952 8993 3952 9058
      3958 9059 3970 9065

$$

BARNES

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 5:40 AM CDTFlash Flood WarningILXMorgan, Scott3 hr

Nearby

Flash Flood Warnings in Illinois, 2011Every flash flood warning in 2011

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.