Alert archive / Illinois / Flash Flood Warnings in 2015

Flash Flood Warning 19, NWS St. Louis, MO

June 19, 20158 counties in Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 19, 2015, 10:45 AM CDT for 8 counties in Illinois. It was in force for 6 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 19, 2015, 10:45 AM CDT (15:45 UTC)
Expired: Jun 19, 2015, 4:30 PM CDT
In force: 6 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Bond County, IL, Clinton County, IL, Fayette County, IL, Madison County, IL, Marion County, IL, Montgomery County, IL, Randolph County, IL, Washington County, IL

The radar

The St Louis radar (KLSX), 131 km from the middle of the area, began a volume at 15:46 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, 2:00 PM CDT	FLASH FLOOD	Wamac, IL	STREET FLOODING AT IRVINGTON ROAD AND CENTER STREET.

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 12:00Z, 3.8 hours before the alert went out and 171 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 938 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -42 m²/s²
0-3 km storm-relative helicity: 1 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.

192 
WGUS53 KLSX 191545
FFWLSX
ILC005-027-051-119-121-135-157-189-192130-
/O.NEW.KLSX.FF.W.0019.150619T1545Z-150619T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1045 AM CDT FRI JUN 19 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOND COUNTY IN SOUTH CENTRAL ILLINOIS...
  CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS...
  EASTERN MADISON COUNTY IN SOUTHWEST ILLINOIS...
  FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS...
  MARION COUNTY IN SOUTH CENTRAL ILLINOIS...
  NORTHEASTERN RANDOLPH COUNTY IN SOUTHWEST ILLINOIS...
  SOUTHERN MONTGOMERY COUNTY IN SOUTH CENTRAL ILLINOIS...
  WASHINGTON COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 430 PM CDT

* AT 1038 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  AN AREA OF VERY HEAVY RAINFALL ACROSS THE WARNED AREA WHERE 1 TO
  3 INCHES OF RAIN HAS ALREADY FALLEN ON SATURATED GROUND.  THE HEAVY
  RAINFALL IS EXPECT TO CONTINUE INTO THE AFTERNOON...WITH AN
  ADDITIONAL 1 TO 2 INCHES EXPECTED.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BREESE...CARLYLE...CENTRALIA...GREENVILLE...HIGHLAND...NASHVILLE...
  NEW BADEN...SALEM...VANDALIA...ALBERS...ASHLEY...AVISTON...BEAVER
  CREEK...BECKEMEYER...BOULDER...BROWNSTOWN...CENTRAL CITY...
  COFFEEN...COULTERVILLE...FAIRMAN...FARINA...GERMANTOWN...HELM...
  IRVINGTON...JAMESTOWN...KINMUNDY...LIVELY GROVE...MULBERRY GROVE...
  NEW MEMPHIS AND ODIN.

THIS WARNING INCLUDES CARLYLE LAKE RECREATIONAL AREA AND RAMSEY LAKE 
STATE PARK.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN ILLINOIS FROM EXIT 30 TO EXIT 76.
INTERSTATE 57 FROM EXIT 109 TO EXIT 135.
INTERSTATE 64 IN ILLINOIS FROM EXIT 50 TO EXIT 61.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3847 8914 3821 8915 3822 8959 3815 8958
      3814 8970 3906 8970 3928 8914 3922 8913
      3922 8881 3892 8880 3891 8869 3848 8869

$$

BRITT

1 follow-up statement

161 
WGUS73 KLSX 192004
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
304 PM CDT FRI JUN 19 2015

ILC005-027-051-119-121-135-157-189-192130-
/O.CON.KLSX.FF.W.0019.000000T0000Z-150619T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON IL-MARION IL-MONTGOMERY IL-FAYETTE IL-RANDOLPH IL-
WASHINGTON IL-BOND IL-CLINTON IL-
304 PM CDT FRI JUN 19 2015

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CLINTON...BOND...
WASHINGTON...NORTHEASTERN RANDOLPH...FAYETTE...SOUTHERN MONTGOMERY...
MARION AND EASTERN MADISON COUNTIES UNTIL 430 PM CDT...

AT 301 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
ANOTHER BAND OF VERY HEAVY RAINFALL MOVING INTO 
CLINTON...WASHINGTON... AND MARION COUNTIES FROM THE SOUTH. RAINFALL 
RATES OF UP TO 2 INCHES PER HOUR WITH THIS BAND ON ALREADY SATURATED 
SOILS WILL QUICKLY LEAD TO FLASH FLOODING.

HEAVY RAIN CONTINUES TO FALL ACROSS THE WARNED AREA. RUNOFF FROM THIS
EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS
THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...BREESE...CARLYLE...
CENTRALIA...GREENVILLE...HIGHLAND...NASHVILLE...NEW BADEN...SALEM...
VANDALIA...ALBERS...ASHLEY...AVISTON...BEAVER CREEK...BECKEMEYER...
BOULDER...BROWNSTOWN...CENTRAL CITY...COFFEEN...COULTERVILLE...
FAIRMAN...FARINA...GERMANTOWN...HELM...IRVINGTON...JAMESTOWN...KINMUN
DY...LIVELY GROVE...MULBERRY GROVE...NEW MEMPHIS AND ODIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES... AS WELL AS
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3847 8914 3821 8915 3822 8959 3815 8958
      3814 8970 3906 8970 3928 8914 3922 8913
      3922 8881 3892 8880 3891 8869 3848 8869

$$

BROWNING

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 7:36 AM CDT	Areal Flood Advisory	LSX	Madison, Monroe, Randolph, Saint Clair	6 hr
Jun 19, 9:07 AM CDT	Flash Flood Warning	LSX	Monroe, Randolph, Saint Clair	6 hr
Jun 19, 10:34 AM CDT	Flash Flood Warning	LSX	Macoupin, Madison, Monroe, Randolph, Saint Clair	6 hr
Jun 19, 1:00 PM CDT	River Flood Warning	LSX	Fayette	5 days
Jun 19, 2:44 PM CDT	Flash Flood Warning	LSX	Randolph	6 hr
Jun 19, 4:37 PM CDT	Areal Flood Warning	LSX	Bond, Clinton, Fayette, Marion, Monroe, Randolph and 2 more	12 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.