Alert archive / Illinois / Flash Flood Warnings in 2015

Flash Flood Warning 28, NWS Lincoln, IL

June 18, 2015Clay County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 18, 2015, 8:47 PM CDT for Clay County, Illinois. It was in force for 4 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: Jun 18, 2015, 8:47 PM CDT (01:47 UTC)
Expired: Jun 19, 2015, 12:45 AM CDT
In force: 4 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

County Clay County, IL

The radar

The Evansville,IN radar (KVWX), 83 km from the middle of the area, began a volume at 01:49 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
Jun 18, 9:15 PM CDT	FLASH FLOOD	1 S Louisville, IL	HIGHWAY 45 ONE TO TWO MILES SOUTH OF LOUISVILLE COVERED WITH 6 INCHES OF FLOWING WATER IN SEVERAL PLACES.

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, 1.8 hours before the alert went out and 154 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: 7 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 974 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 29 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.

574 
WGUS53 KILX 190147
FFWILX
ILC025-190545-
/O.NEW.KILX.FF.W.0028.150619T0147Z-150619T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
847 PM CDT THU JUN 18 2015

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 1245 AM CDT
    
* AT 846 PM CDT...DOPPLER RADAR INDICATED AND SPOTTERS REPORTED A 
  THUNDERSTORM PRODUCING 1.5 INCHES OF RAIN IN 30 MINUTES ACROSS THE 
  WARNED AREA. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  FLORA...LOUISVILLE...CLAY CITY...BIBLE GROVE...INGRAHAM...IOLA AND
  SAILOR SPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3866 8870 3887 8869 3888 8836 3885 8836
      3885 8828 3884 8826 3873 8826 3873 8829
      3869 8832

$$

SHIMON

1 follow-up statement

293 
WGUS73 KILX 190443
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1143 PM CDT THU JUN 18 2015

ILC025-190452-
/O.CAN.KILX.FF.W.0028.000000T0000Z-150619T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY-
1143 PM CDT THU JUN 18 2015

...THE FLASH FLOOD WARNING FOR CLAY COUNTY IS CANCELLED...

FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A
THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD
CLOSURES.

LAT...LON 3866 8870 3887 8869 3888 8836 3885 8836
      3885 8828 3884 8826 3873 8826 3873 8829
      3869 8832

$$

SHIMON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 5:26 AM CDT	Flash Flood Warning	ILX	Coles, Douglas, Moultrie, Shelby	6 hr
Jun 19, 5:33 AM CDT	Flash Flood Warning	ILX	Clay, Effingham, Jasper, Richland	6 hr
Jun 19, 6:32 AM CDT	Flash Flood Warning	ILX	Clark, Coles, Crawford, Cumberland, Effingham, Jasper and 1 more	12 hr
Jun 19, 10:01 AM CDT	River Flood Warning	ILX	Lawrence	18 days
Jun 19, 11:34 AM CDT	Areal Flood Advisory	ILX	Coles, Moultrie, Shelby	6 hr
Jun 19, 11:42 AM CDT	Areal Flood Warning	ILX	Coles, Moultrie, Shelby	12 hr
Jun 19, 1:37 PM CDT	Flash Flood Warning	ILX	Clay, Effingham, Jasper, Lawrence, Richland	5 hr
Jun 19, 4:45 PM CDT	Tornado Warning	ILX	Clay, Jasper, Richland	45 min
Jun 19, 5:13 PM CDT	Tornado Warning	ILX	Jasper, Richland	47 min
Jun 19, 6:27 PM CDT	Areal Flood Warning	ILX	Clark, Clay, Coles, Crawford, Cumberland, Edgar and 5 more	15 hr

Nearby

Flash Flood Warnings in Illinois, 2015 Every flash flood warning in 2015

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.