Alert archive / Illinois / Flash Flood Warnings in 2011

Flash Flood Warning 33, NWS Lincoln, IL

June 15, 20114 counties in Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 15, 2011, 2:58 AM CDT for 4 counties in Illinois. It was in force for 4 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 15, 2011, 2:58 AM CDT (07:58 UTC)
Expired: Jun 15, 2011, 7:04 AM CDT
In force: 4 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

Counties Cass County, IL, Fulton County, IL, Mason County, IL, Schuyler County, IL

The radar

The Lincoln radar (KILX), 104 km from the middle of the area, began a volume at 07:59 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, 8.0 hours before the alert went out and 167 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2 J/kg
Mixed-layer CIN: -693 J/kg
Mixed-layer LCL: 838 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 325 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

482 
WGUS53 KILX 150758
FFWILX
ILC017-057-125-169-151400-
/O.NEW.KILX.FF.W.0033.110615T0758Z-110615T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
258 AM CDT WED JUN 15 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN CASS COUNTY IN WEST CENTRAL ILLINOIS...
  SCHUYLER COUNTY IN WEST CENTRAL ILLINOIS...
  SOUTHWESTERN FULTON COUNTY IN WEST CENTRAL ILLINOIS...
  SOUTHWESTERN MASON COUNTY IN CENTRAL ILLINOIS...

* UNTIL 900 AM CDT

* AT 255 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
  RADAR RAINFALL ESTIMATES INDICATE THAT 1 TO 2 INCHES OF RAIN HAS 
  FALLEN...WITH AT LEAST ANOTHER 1 TO 2 INCHES EXPECTED.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BEARDSTOWN...RUSHVILLE...ASTORIA...BATH...BROOKLYN...BROWNING...  
  CHANDLERVILLE...KILBOURNE AND LITTLETON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 4028 9090 4026 9006 4030 9000 4000 9001
      3998 9053 3998 9061 4000 9061 4005 9068
      4007 9068 4008 9071 4010 9071 4010 9091

$$

CHURCHILL

1 follow-up statement

107 
WGUS73 KILX 151204
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
704 AM CDT WED JUN 15 2011

ILC017-057-125-169-151218-
/O.CAN.KILX.FF.W.0033.000000T0000Z-110615T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MASON IL-SCHUYLER IL-CASS IL-FULTON IL-
704 AM CDT WED JUN 15 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHWESTERN
FULTON...NORTHERN CASS...SCHUYLER AND SOUTHWESTERN MASON 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 4028 9090 4026 9006 4030 9000 4000 9001
      3998 9053 3998 9061 4000 9061 4005 9068
      4007 9068 4008 9071 4010 9071 4010 9091

$$

KH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 12:38 AM CDT	Special Weather Statement	ILX	Peoria	52 min
Jun 15, 12:47 AM CDT	Special Weather Statement	ILX	Knox	43 min
Jun 15, 1:56 AM CDT	Flash Flood Warning	ILX	Fulton, Knox, Marshall, Mason, Peoria, Stark and 2 more	6 hr
Jun 15, 2:21 AM CDT	Special Weather Statement	ILX	McLean	39 min
Jun 15, 3:49 AM CDT	Areal Flood Advisory	ILX	McLean, Tazewell, Woodford	6 hr
Jun 15, 4:31 AM CDT	Special Weather Statement	ILX	Champaign	59 min
Jun 15, 5:01 AM CDT	Special Weather Statement	ILX	Christian	59 min
Jun 15, 5:19 AM CDT	Areal Flood Advisory	ILX	Christian, Macon, Moultrie, Piatt, Shelby	4 hr
Jun 15, 5:36 AM CDT	Flash Flood Warning	ILX	Macon, Moultrie, Piatt	6 hr
Jun 15, 6:02 AM CDT	Severe Thunderstorm Warning	ILX	Edgar, Vermilion	28 min
Jun 15, 1:45 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Macon, Shelby	30 min
Jun 15, 3:45 PM CDT	Tornado Warning	ILX	Clark, Coles, Cumberland	31 min
Jun 15, 3:48 PM CDT	Tornado Warning	ILX	Cumberland	42 min
Jun 15, 4:20 PM CDT	Tornado Warning	ILX	Clark, Crawford, Cumberland, Jasper	40 min
Jun 15, 6:06 PM CDT	River Flood Warning	ILX	Fulton, Knox	24 hr

Nearby

Flash Flood Warnings in Illinois, 2011 Every 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.