Alert archive / Illinois / Flash Flood Warnings in 2015

Flash Flood Warning 12, NWS St. Louis, MO

June 8, 2015Bond County, Fayette County, Marion County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 8, 2015, 1:29 AM CDT for Bond County, Fayette County, Marion County, Illinois. It was in force for 6 hr. 3 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 8, 2015, 1:29 AM CDT (06:29 UTC)
Expired: Jun 8, 2015, 7:30 AM CDT
In force: 6 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Bond County, IL, Fayette County, IL, Marion County, IL

The radar

The St Louis radar (KLSX), 130 km from the middle of the area, began a volume at 06:31 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 8, 2:00 AM CDT	FLASH FLOOD	Greenville, IL	STREET FLOODING REPORTED IN SEVERAL LOCATIONS IN TOWN. HIGHWAY 127 HAD FAST FLOWING WATER OVER CURB DEEP.
Jun 8, 7:00 AM CDT	HEAVY RAIN 3	Mulberry Grove, IL
Jun 8, 7:16 AM CDT	HEAVY RAIN 3.46	2 Ne Greenville, IL

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

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 6.5 hours before the alert went out and 326 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: 1647 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1064 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

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

178 
WGUS53 KLSX 080629
FFWLSX
ILC005-051-121-081230-
/O.NEW.KLSX.FF.W.0012.150608T0629Z-150608T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
129 AM CDT MON JUN 8 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 730 AM CDT

* AT 128 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE   
  WARNED AREA. RADAR ESTIMATES THAT 2 TO 3 INCHES OF RAIN HAS FALLEN 
  SINCE 1100 PM...AND ANOTHER 1 TO 2 INCHES IS POSSIBLE. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GREENVILLE...VANDALIA...BEAVER CREEK...FAIRMAN...FARINA...
  KINMUNDY...MULBERRY GROVE...OMEGA...PATOKA...POCAHONTAS...RENO...
  SHOBONIER...SORENTO...STEPHEN FORBES STATION...TAMALCO AND WOBURN.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN ILLINOIS FROM EXIT 36 TO EXIT 68.
INTERSTATE 57 FROM EXIT 127 TO EXIT 135.

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.

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.

&&

LAT...LON 3866 8869 3867 8914 3873 8914 3874 8916
      3874 8959 3887 8960 3888 8964 3899 8964
      3900 8959 3903 8956 3902 8926 3900 8925
      3899 8880 3891 8880 3892 8870

$$

GLASS

1 follow-up statement

591 
WGUS73 KLSX 080804
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
304 AM CDT MON JUN 8 2015

ILC005-051-121-081230-
/O.CON.KLSX.FF.W.0012.000000T0000Z-150608T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARION IL-FAYETTE IL-BOND IL-
304 AM CDT MON JUN 8 2015

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR BOND...SOUTHERN FAYETTE
AND NORTHERN MARION COUNTIES UNTIL 730 AM CDT...

AT 301 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED STREET 
FLOODING IN SEVERAL LOCATIONS AROUND GREENVILLE INCLUDING ON HIGHWAY 
127. THUNDERSTORMS WILL CONTINUE ACROSS THE THE WARNED AREA THROUGH 
AT LEAST 500 AM AND ANOTHER 1 TO 2 INCHES OF RAINFALL IS POSSIBLE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
GREENVILLE...VANDALIA...BEAVER CREEK...FAIRMAN...FARINA...KINMUNDY...
MULBERRY GROVE...OMEGA...PATOKA...POCAHONTAS...RENO...SHOBONIER...
SORENTO...STEPHEN FORBES STATION...TAMALCO AND WOBURN.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN ILLINOIS FROM EXIT 36 TO EXIT 68.
INTERSTATE 57 FROM EXIT 127 TO EXIT 135.

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.

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.

&&

LAT...LON 3866 8869 3867 8914 3873 8914 3874 8916
      3874 8959 3887 8960 3888 8964 3899 8964
      3900 8959 3903 8956 3902 8926 3900 8925
      3899 8880 3891 8880 3892 8870

$$

GLASS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 7:19 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown	41 min
Jun 7, 7:59 PM CDT	Areal Flood Advisory	LSX	Adams, Brown	6 hr
Jun 7, 9:09 PM CDT	Areal Flood Advisory	LSX	Adams, Brown, Pike	6 hr
Jun 7, 9:34 PM CDT	River Flood Warning	LSX	Madison	49 days
Jun 8, 12:21 AM CDT	Flash Flood Warning	LSX	Fayette, Montgomery	8 hr
Jun 8, 5:03 AM CDT	Areal Flood Advisory	LSX	Clinton, Marion, Washington	4 hr
Jun 8, 7:16 AM CDT	River Flood Warning	LSX	Fayette	4 days
Jun 8, 7:31 AM CDT	Areal Flood Warning	LSX	Fayette, Montgomery	6 hr
Jun 8, 7:55 AM CDT	Areal Flood Warning	LSX	Bond, Marion	6 hr
Jun 8, 8:17 AM CDT	Areal Flood Warning	LSX	Fayette	5 hr
Jun 8, 1:08 PM CDT	Areal Flood Warning	LSX	Fayette, Montgomery	10 hr
Jun 8, 1:10 PM CDT	Areal Flood Warning	LSX	Bond, Fayette, Marion	10 hr
Jun 8, 2:12 PM CDT	Severe Thunderstorm Warning	LSX	Adams	63 min
Jun 8, 2:52 PM CDT	Severe Thunderstorm Warning	LSX	Adams	38 min
Jun 8, 3:29 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Pike	46 min
Jun 8, 4:42 PM CDT	Severe Thunderstorm Warning	LSX	Pike	48 min

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.