Alert archive / Illinois / Flash Flood Warnings in 2011

Flash Flood Warning 31, NWS Lincoln, IL

June 14, 2011Morgan County, Scott County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 14, 2011, 7:09 AM CDT for Morgan County, Scott 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
Jun 14, 2011, 7:09 AM CDT (12:09 UTC)
Expired
Jun 14, 2011, 1:00 PM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

Counties Morgan County, IL, Scott County, IL

The radar

The Lincoln radar (KILX), 113 km from the middle of the area, began a volume at 12:09 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, 0.2 hours before the alert went out and 172 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 2011-06-14Temperature 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 12:00Z on 2011-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
761 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
27 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.

112 
WGUS53 KILX 141209
FFWILX
ILC137-171-141800-
/O.NEW.KILX.FF.W.0031.110614T1209Z-110614T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
709 AM CDT TUE JUN 14 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 100 PM CDT

* AT 707 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF HEAVY RAINFALL APPROACHING THE WARNED AREA. RAINFALL       
  RATES ARE EXPECTED TO EXCEED ONE INCH PER HOUR THIS                
  MORNING BETWEEN 7 AM AND 9 AM.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  WINCHESTER...ALSEY...BLUFFS...CHAPIN...EXETER...MANCHESTER...
  MEREDOSIA AND NAPLES.

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.

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.

&&

LAT...LON 3975 9062 3980 9060 3982 9058 3985 9059
      3988 9059 3987 9031 3952 9029 3952 9058
      3954 9058 3971 9065

$$

BARNES
2 follow-up statements
776 
WGUS73 KILX 141351
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
851 AM CDT TUE JUN 14 2011

ILC137-171-141800-
/O.CON.KILX.FF.W.0031.000000T0000Z-110614T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORGAN IL-SCOTT IL-
851 AM CDT TUE JUN 14 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SCOTT AND WESTERN MORGAN
COUNTIES UNTIL 100 PM CDT...

AT 850 AM CDT...LIGHT RAIN CONTINUES TO FALL ACROSS THE WARNED AREA. 
ADDITIONAL SHOWERS AND THUNDERSTORMS WILL MOVE IN FROM THE NORTHWEST 
BETWEEN 9 AM AND 10 AM CDT...PRODUCING RAINFALL RATES OF UP TO ONE 
INCH PER HOUR.

SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
WINCHESTER...ALSEY...BLUFFS...CHAPIN...EXETER...MANCHESTER...
MEREDOSIA AND NAPLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES... AS WELL AS
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

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.

&&

LAT...LON 3975 9062 3980 9060 3982 9058 3985 9059
      3988 9059 3987 9031 3952 9029 3952 9058
      3954 9058 3971 9065

$$

BARNES
840 
WGUS73 KILX 141751
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1251 PM CDT TUE JUN 14 2011

ILC137-171-141806-
/O.EXP.KILX.FF.W.0031.000000T0000Z-110614T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORGAN IL-SCOTT IL-
1251 PM CDT TUE JUN 14 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SCOTT AND WESTERN
MORGAN COUNTIES HAS BEEN ALLOWED TO EXPIRE...

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 3975 9062 3980 9060 3982 9058 3985 9059
      3988 9059 3987 9031 3952 9029 3952 9058
      3954 9058 3971 9065

$$

BARNES

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 7:14 AM CDTAreal Flood AdvisoryILXCass, Schuyler6 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.