Alert archive / Illinois / Flash Flood Warnings in 2011

Flash Flood Warning 61, NWS Lincoln, IL

July 2, 2011Edgar County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 2, 2011, 11:15 PM CDT for Edgar County, Illinois. It was in force for 5 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 2, 2011, 11:15 PM CDT (04:15 UTC)
Expired: Jul 3, 2011, 4:14 AM CDT
In force: 5 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

County Edgar County, IL

The radar

The Indianapolis radar (KIND), 128 km from the middle of the area, began a volume at 04:18 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.

What was reported inside it

Time	Report	Where	Remark
Jul 3, 12:00 AM CDT	FLOOD	Paris, IL	STREETS FLOODED IN TOWN....STILL PASSABLE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 4.3 hours before the alert went out and 92 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: 5007 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1004 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 47 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.

748 
WGUS53 KILX 030415
FFWILX
ILC045-031000-
/O.NEW.KILX.FF.W.0061.110703T0415Z-110703T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1115 PM CDT SAT JUL 2 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EDGAR COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 500 AM CDT

* AT 1114 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA. RADAR ESTIMATED RAINFALL OF AROUND 2 INCHES IN THE
  PAST HOUR ACROSS THE WARNING AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PARIS...BROCTON...HUME...KANSAS...OLIVER...REDMON AND VERMILION.

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 3948 8769 3949 8769 3948 8796 3979 8797
      3979 8794 3980 8794 3980 8753 3948 8753

$$

BAK

1 follow-up statement

532 
WGUS73 KILX 030914
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
414 AM CDT SUN JUL 3 2011

ILC045-030928-
/O.CAN.KILX.FF.W.0061.000000T0000Z-110703T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EDGAR IL-
414 AM CDT SUN JUL 3 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EDGAR COUNTY 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. 

LAT...LON 3948 8769 3949 8769 3948 8796 3979 8797
      3979 8794 3980 8794 3980 8753 3948 8753

$$

CHURCHILL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 7:15 PM CDT	Special Weather Statement	ILX	Vermilion	30 min
Jul 2, 7:34 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	56 min
Jul 2, 8:56 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	34 min
Jul 2, 10:54 PM CDT	Severe Thunderstorm Warning	ILX	Coles	36 min
Jul 3, 12:05 AM CDT	Flash Flood Warning	ILX	Coles, Cumberland, Shelby	5 hr
Jul 3, 6:46 PM CDT	Areal Flood Advisory	ILX	Clark	3 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.