Alert archive / Illinois / Flash Flood Warnings in 2011

Flash Flood Warning 58, NWS St. Louis, MO

June 19, 2011Bond County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 19, 2011, 3:32 AM CDT for Bond County, Illinois. It was in force for 6 hr. 2 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 19, 2011, 3:32 AM CDT (08:32 UTC)
Expired: Jun 19, 2011, 9:30 AM CDT
In force: 6 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

County Bond County, IL

The radar

The St Louis radar (KLSX), 106 km from the middle of the area, began a volume at 08:34 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 19, 7:00 AM CDT	HEAVY RAIN 2.1	Greenville, IL	STORM TOTAL
Jun 19, 9:08 AM CDT	FLOOD	Greenville, IL	FLOODING IS CONTINUING ACROSS THE COUNTY. ILLINOIS ROUTES 140...143 AND 127 HAVE WATER OVER THEM IN SPOTS.

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, 8.5 hours before the alert went out and 156 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: 115 J/kg
Mixed-layer CIN: -294 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

344 
WGUS53 KLSX 190832
FFWLSX
ILC005-191430-
/O.NEW.KLSX.FF.W.0058.110619T0832Z-110619T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
332 AM CDT SUN JUN 19 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN BOND COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 930 AM CDT

* AT 331 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GREENVILLE...MULBERRY GROVE...RENO...SORENTO AND WOBURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

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 3885 8926 3885 8960 3887 8960 3888 8964
      3900 8964 3900 8958 3903 8958 3903 8926

$$

BROWNING

1 follow-up statement

000 
WGUS73 KLSX 190925
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
425 AM CDT SUN JUN 19 2011

ILC005-191430-
/O.CON.KLSX.FF.W.0058.000000T0000Z-110619T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BOND IL-
425 AM CDT SUN JUN 19 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN BOND COUNTY
UNTIL 930 AM CDT...

AT 423 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
INDIAN CREEK AND SHOAL CREEK IN NORTHERN BOND COUNTY ARE LIKELY 
RISING RAPIDLY DUE TO THE VERY HEAVY RAINS OVER THE LAST SEVERAL 
HOURS. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...GREENVILLE...MULBERRY GROVE...RENO...SORENTO AND WOBURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

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 3885 8926 3885 8960 3887 8960 3888 8964
      3900 8964 3900 8958 3903 8958 3903 8926

$$

BROWNING

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 11:55 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Pike	50 min
Jun 19, 1:59 AM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph	46 min
Jun 19, 2:07 AM CDT	Severe Thunderstorm Warning	LSX	Adams	33 min
Jun 19, 2:25 AM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph	50 min
Jun 19, 2:36 AM CDT	Severe Thunderstorm Warning	LSX	Clinton, Monroe, Randolph, Saint Clair, Washington	39 min
Jun 19, 2:56 AM CDT	Tornado Warning	LSX	Monroe, Randolph	34 min
Jun 19, 3:07 AM CDT	Severe Thunderstorm Warning	LSX	Clinton, Monroe, Randolph, Saint Clair, Washington	38 min
Jun 19, 4:02 AM CDT	Flash Flood Warning	LSX	Fayette	6 hr
Jun 19, 9:25 AM CDT	Areal Flood Warning	LSX	Bond	13 hr
Jun 19, 9:55 AM CDT	Areal Flood Warning	LSX	Fayette	6 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.