Alert archive / Illinois / Flash Flood Warnings in 2012

Flash Flood Warning 13, NWS Chicago, IL

June 16, 2012Kankakee County, Illinois

NWS Chicago, IL issued this flash flood warning at Jun 16, 2012, 7:47 PM CDT for Kankakee County, Illinois. It was in force for 6 hr. 12 reports 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 16, 2012, 7:47 PM CDT (00:47 UTC)
Expired: Jun 17, 2012, 2:00 AM CDT
In force: 6 hr
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Flood severity: None

County Kankakee County, IL

The radar

The Chicago radar (KLOT), 54 km from the middle of the area, began a volume at 00:47 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 16, 8:17 PM CDT	FLOOD	Momence, IL	3-4 INCHES STANDING WATER. ROADS CLOSED. 3500N
Jun 16, 8:20 PM CDT	HEAVY RAIN 3.15	Sse Bourbonnais, IL	3.01 INCHES OF IN THE PAST 70 MINUTES
Jun 16, 8:23 PM CDT	FLASH FLOOD	Bourbonnais, IL	2-3 FEET OF WATER WITH ROAD CLOSURES. INTERSECTION OF BETHEL DR AND INDEPENDENCE DR.
Jun 16, 8:30 PM CDT	FLOOD	Momence, IL	FLOODING AT APPROXIMATELY 2ND STREET AND MARKET ST.
Jun 16, 9:20 PM CDT	HEAVY RAIN 3.55	1 Nne Bourbonnais, IL	STORM TOTAL SO FAR
Jun 16, 9:24 PM CDT	HEAVY RAIN 5.06	Bradley, IL	JUST EAST OF I-57
Jun 16, 10:21 PM CDT	HEAVY RAIN 3.72	Sse Bourbonnais, IL	0.57 INCHES IN THE PAST 56 MINUTES.
Jun 16, 10:22 PM CDT	HEAVY RAIN 4.74	Sse Bourbonnais, IL	RAIN FELL VERY HEAVILY DURING THE FIRST HALF OF THE OBSERVATION TIME...1.02 INCHES OF RAIN FELL IN 61 MINUTES...MODERATE RAINFALL WAS OBSERVED AT TIME OF OBSERVATION.
Jun 16, 10:42 PM CDT	HEAVY RAIN 4.04	2 Ne Bradley, IL
Jun 16, 10:48 PM CDT	HEAVY RAIN 3.76	2 Ne Bradley, IL
Jun 16, 11:02 PM CDT	HEAVY RAIN 4.9	2 Ne Bradley, IL
Jun 16, 11:20 PM CDT	FLASH FLOOD	Kankakee, IL	EXTENSIVE AND SOMEWHAT SEVERE FLASH FLOODING CONTINUES OVER A LARGE PORTION OF COUNTY. TOO MANY ROADS TO LIST ARE FLOODED CLOSED AND IMPASSIBLE WITH WATER RUSHING OVER THE ROADS IN MANY CASES. INCLUDING THE CITY OF KANKAKEE...BRADLEY...AS WELL AS MORE RURAL PO

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, 0.8 hours before the alert went out and 121 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: 1606 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1612 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.7

Open this sounding in Storm Lab

The text

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

320 
WGUS53 KLOT 170047
FFWLOT
ILC091-170700-
/O.NEW.KLOT.FF.W.0013.120617T0047Z-120617T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
747 PM CDT SAT JUN 16 2012

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* FLASH FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS IN...
  KANKAKEE COUNTY IN NORTHEAST ILLINOIS...

* UNTIL 200 AM CDT SUNDAY

* AT 746 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH TORRENTIAL RAINFALL ACROSS THE
  WARNED AREA. RADAR ESTIMATES INDICATE THAT OVER 4 INCHES OF RAIN   
  HAS FALLEN IN THE PAST COUPLE HOURS FROM JUST EAST OF KANKAKEE TO  
  NEAR MOMENCE. ADDITIONAL THUNDERSTORMS WITH TORRENTIAL RAINFALL    
  ARE LIKELY OVER THE NEXT SEVERAL HOURS. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BOURBONNAIS...BRADLEY...KANKAKEE...MOMENCE...AROMA PARK AND GRANT
  PARK.

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 4102 8780 4110 8799 4109 8825 4111 8825
      4111 8824 4120 8824 4120 8802 4123 8801
      4126 8753 4110 8753

$$

IZZI

4 follow-up statements

691 
WGUS73 KLOT 170129
FFSLOT

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
829 PM CDT SAT JUN 16 2012

ILC091-170700-
/O.CON.KLOT.FF.W.0013.000000T0000Z-120617T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANKAKEE IL-
829 PM CDT SAT JUN 16 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CENTRAL KANKAKEE COUNTY
UNTIL 200 AM CDT...

AT 826 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS PRODUCING TORRENTIAL RAINFALL ACROSS THE WARNED AREA. 
DOPPLER RADAR INDICATES THAT 3 TO LOCALLY MORE THAN 6 INCHES OF RAIN 
HAS FALLEN IN THE PAST FEW HOURS FROM BOURBONNAIS AND KANKAKEE EAST 
TOWARD MOMENCE. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE POTENTIALLY 
SIGNIFICANT FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL 
EXPERIENCE FLOODING INCLUDE...BOURBONNAIS...BRADLEY... 
KANKAKEE...MOMENCE...AROMA PARK AND GRANT PARK.

AT 820 PM...AMATUER RADIO OPERATORS REPORTED SERIOUS FLOODING IN 
BOURBONNAIS WITH UP TO THREE FEET OF WATER BLOCKING ROADWAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4102 8780 4110 8799 4109 8825 4111 8825
      4111 8824 4120 8824 4120 8802 4123 8801
      4126 8753 4110 8753

$$

IZZI

212 
WGUS73 KLOT 170226
FFSLOT

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
926 PM CDT SAT JUN 16 2012

ILC091-170700-
/O.CON.KLOT.FF.W.0013.000000T0000Z-120617T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANKAKEE IL-
926 PM CDT SAT JUN 16 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CENTRAL KANKAKEE COUNTY
UNTIL 200 AM CDT...

AT 916 PM CDT...WEATHER SPOTTERS REPORTED THUNDERSTORMS WITH VERY
HEAVY RAINFALL ACROSS THE WARNED AREA. IN EXCESS OF 4 INCHES OF RAIN 
HAS FALLEN OVER PORTIONS OF THE AREA AND 5.06 INCHES OF RAINFALL WAS 
REPORTED BY A TRAINED SPOTTER IN BRADLEY.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BOURBONNAIS...BRADLEY...KANKAKEE...MOMENCE...AROMA PARK AND GRANT
PARK.

TWO TO 3 FEET OF STANDING WATER HAS BEEN REPORTED AT THE INTERSECTION
OF BETHEL DRIVE AND INDEPENDENCE DRIVE.  MANY AREA STREETS ARE 
COVERED WITH WATER.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BOURBONNAIS...
BRADLEY...KANKAKEE...MOMENCE...AROMA PARK AND GRANT PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4102 8780 4110 8799 4109 8825 4111 8825
      4111 8824 4120 8824 4120 8802 4123 8801
      4126 8753 4110 8753

$$

KREIN

324 
WGUS73 KLOT 170434
FFSLOT

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1134 PM CDT SAT JUN 16 2012

ILC091-170700-
/O.CON.KLOT.FF.W.0013.000000T0000Z-120617T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANKAKEE IL-
1134 PM CDT SAT JUN 16 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CENTRAL KANKAKEE COUNTY
UNTIL 200 AM CDT...

AT 1130 PM CDT...TRAINED WEATHER SPOTTERS REPORTED THUNDERSTORMS 
WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. OVER 4 TO 5 
INCHES OF RAINFALL WAS REPORTED BY A TRAINED SPOTTERS NEAR BRADLEY 
AND BOURBONNAIS. NWS DOPPLER RADAR INDICATED THAT 5 TO 7 INCHES OF 
RAIN HAS FALLEN EAST OF KANKAKEE...IN AN AREA FROM MOMENCE TO AROMA 
PARK TO CHEBANSE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BOURBONNAIS...BRADLEY...KANKAKEE...MOMENCE...AROMA PARK AND GRANT
PARK.

LAW ENFORCEMENT OFFICIALS REPORT THAT EXTENSIVE FLASH FLOODING 
CONTINUES OVER A LARGE PORTION OF KANKAKEE COUNTY. MANY ROADS ARE 
FLOODED CLOSED AND IMPASSIBLE WITH WATER RUSHING OVER THE ROADS IN 
MANY CASES. INCLUDING THE CITIES OF KANKAKEE AND BRADLEY...AS WELL 
AS MORE RURAL LOCATIONS IN THE SOUTHERN AND EASTERN PORTIONS OF THE 
COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4102 8780 4110 8799 4109 8825 4111 8825
      4111 8824 4120 8824 4120 8802 4123 8801
      4126 8753 4110 8753

$$

KREIN

411 
WGUS73 KLOT 170708
FFSLOT

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
208 AM CDT SUN JUN 17 2012

ILC091-170721-
/O.EXP.KLOT.FF.W.0013.000000T0000Z-120617T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANKAKEE IL-
208 AM CDT SUN JUN 17 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR KANKAKEE
COUNTY HAS BEEN ALLOWED TO EXPIRE...

AN AREAL FLOOD WARNING IS NOW IN EFFECT UNTIL 800 AM CDT.

WHILE HEAVY RAIN HAS ENDED OVER THE WARNED AREA...EXCESS RUNOFF 
CONTINUES. STREAMS AND CREEKS IN MUCH OF THE WARNED AREA WILL REMAIN 
HIGH OR FLOODED THROUGH DAYBREAK. IF YOU ENCOUNTER FLOODING...PLEASE 
REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4102 8780 4110 8799 4109 8825 4111 8825
      4111 8824 4120 8824 4120 8802 4123 8801
      4126 8753 4110 8753

$$

MTF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 7:14 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kankakee, Livingston, Will	61 min
Jun 16, 8:20 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Kankakee, Livingston, Will	55 min
Jun 16, 8:40 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	54 min
Jun 16, 9:38 PM CDT	Areal Flood Advisory	LOT	Iroquois, Kankakee	51 min
Jun 16, 10:19 PM CDT	Flash Flood Warning	LOT	Iroquois, Kankakee	4 hr
Jun 16, 10:59 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Kankakee	76 min
Jun 17, 2:05 AM CDT	Areal Flood Warning	LOT	Iroquois, Kankakee	6 hr
Jun 17, 3:50 AM CDT	Small Craft Advisory	LOT		6 hr
Jun 17, 7:59 AM CDT	Areal Flood Warning	LOT	Kankakee	4 hr
Jun 17, 10:09 AM CDT	Gale Watch	LOT		18 hr

Nearby

Flash Flood Warnings in Illinois, 2012 Every flash flood warning in 2012

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.