Alert archive / Illinois / Flash Flood Warnings in 2015

Flash Flood Warning 10, NWS St. Louis, MO

June 8, 2015Fayette County, Montgomery County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 8, 2015, 12:21 AM CDT for Fayette County, Montgomery County, Illinois. It was in force for 8 hr. 6 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, 12:21 AM CDT (05:21 UTC)
Expired: Jun 8, 2015, 8:30 AM CDT
In force: 8 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Fayette County, IL, Montgomery County, IL

The radar

The Lincoln radar (KILX), 116 km from the middle of the area, began a volume at 05:23 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, 1:27 AM CDT	FLASH FLOOD	3 Ne Irving, IL	FLOODING ON HIGHWAY 16 BETWEEN IRVING AND WITT. SEVERAL VIADUCTS IN THE COUNTY FLOODED AS WELL.
Jun 8, 1:29 AM CDT	FLASH FLOOD	Ramsey, IL	WATER ON ROADS IN THE RAMSEY AREA.
Jun 8, 1:34 AM CDT	FLASH FLOOD	St. Elmo, IL	WATER OVER ROADS IN THE AREA.
Jun 8, 1:51 AM CDT	HEAVY RAIN 2.82	Ramsey, IL	RAINFALL SINCE 11 PM.
Jun 8, 7:00 AM CDT	HEAVY RAIN 2.9	Hillsboro, IL
Jun 8, 7:00 AM CDT	HEAVY RAIN 4.11	Ramsey, 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, 5.4 hours before the alert went out and 298 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.

596 
WGUS53 KLSX 080521
FFWLSX
ILC051-135-081330-
/O.NEW.KLSX.FF.W.0010.150608T0521Z-150608T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1221 AM CDT MON JUN 8 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 830 AM CDT

* AT 1220 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE   
  WARNED AREA. RADAR ESTIMATES SINCE 900 PM INDICATE A SWATH OF 2 TO 
  3 INCHES OF RAIN HAS FALLEN...AND AN ADDITIONAL 1 TO 2 INCHES IS
  POSSIBLE.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  HILLSBORO...LITCHFIELD...NOKOMIS...BROWNSTOWN...COFFEEN...RAMSEY...
  RAYMOND...ST. ELMO...TAYLOR SPRINGS...VAN BURENSBURG...WITT AND
  WRIGHTS CORNER.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN ILLINOIS NEAR EXIT 76.
INTERSTATE 55 IN ILLINOIS FROM EXIT 52 TO EXIT 63.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
HORSE CREEK...BECKS CREEK...BIG CREEK...PIATT CREEK...RAMSEY CREEK...
SOUTH FORK SANGAMON RIVER...WEST FORK SHOAL CREEK...SHOP CREEK...
MIDDLE FORK SHOAL CREEK...ELLIOTT CREEK...SECTION CREEK...EAST FORK
SHOAL CREEK...HOG CREEK...MOCCASIN CREEK...KASKASKIA RIVER...LINN
CREEK...DRY FORK...GROVE BRANCH...HURRICANE CREEK...GILHAM CREEK...
YANKEE CREEK...WALNUT CREEK...KINGSBURY BRANCH...SILVER CREEK...
BEARCAT CREEK...SHOAL CREEK...LAKE FORK...BEAR CREEK...HOFFMAN
CREEK...SOUTH FORK KASKASKIA RIVER...SUGAR CREEK...SANDY RUN...SUCK
CREEK...MUD CREEK...SHAW POINT BRANCH...CRESS CREEK...BRUSH CREEK...
BLUE GRASS CREEK...EAST FORK RAMSEY CREEK...RICHLAND CREEK...LITTLE
CREEK...CAESAR CREEK...BAILEY BRANCH...MILLER CREEK...PANTHER
CREEK...HICKORY CREEK...ASH CREEK...BOLT CREEK...CEDAR CREEK...WOLF
CREEK...MITCHELL CREEK...BACON BRANCH...FANNY BRANCH AND CAHOKIA
CREEK.

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 3900 8925 3903 8925 3903 8958 3900 8959
      3900 8970 3935 8969 3935 8914 3922 8913
      3922 8881 3899 8880

$$

GLASS

1 follow-up statement

105 
WGUS73 KLSX 080744
FFSLSX

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

ILC051-135-081330-
/O.CON.KLSX.FF.W.0010.000000T0000Z-150608T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONTGOMERY IL-FAYETTE IL-
244 AM CDT MON JUN 8 2015

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN FAYETTE AND
MONTGOMERY COUNTIES UNTIL 830 AM CDT...

AT 241 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS CONTINUED ACROSS THE WARNED AREA. LAW ENFORCEMENT 
REPORTS THAT WATER COVERED PARTS OF HIGHWAY 16 BETWEEN IRVING AND 
WITT AS WELL AS SEVEREL OTHER ROADS IN MONTGOMERY COUNTY...AND WATER 
ALSO COVERED SEVERAL ROADS AROUND ST. ELMO AND RAMSEY IN FAYETTE 
COUNTY. ADDITIONAL RAINFALL AMOUNTS SHOULD BE LESS THAN ONE INCH.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
HILLSBORO...LITCHFIELD...NOKOMIS...BROWNSTOWN...COFFEEN...RAMSEY...
RAYMOND...ST. ELMO...TAYLOR SPRINGS...VAN BURENSBURG...WITT AND
WRIGHTS CORNER.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN ILLINOIS NEAR EXIT 76.
INTERSTATE 55 IN ILLINOIS FROM EXIT 52 TO EXIT 63.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
HORSE CREEK...BECKS CREEK...BIG CREEK...PIATT CREEK...RAMSEY CREEK...
SOUTH FORK SANGAMON RIVER...WEST FORK SHOAL CREEK...SHOP CREEK...
MIDDLE FORK SHOAL CREEK...ELLIOTT CREEK...SECTION CREEK...EAST FORK
SHOAL CREEK...HOG CREEK...MOCCASIN CREEK...KASKASKIA RIVER...LINN
CREEK...DRY FORK...GROVE BRANCH...HURRICANE CREEK...GILHAM CREEK...
YANKEE CREEK...WALNUT CREEK...KINGSBURY BRANCH...SILVER CREEK...
BEARCAT CREEK...SHOAL CREEK...LAKE FORK...BEAR CREEK...HOFFMAN
CREEK...SOUTH FORK KASKASKIA RIVER...SUGAR CREEK...SANDY RUN...SUCK
CREEK...MUD CREEK...CRESS CREEK...BRUSH CREEK...BLUE GRASS CREEK...
EAST FORK RAMSEY CREEK...RICHLAND CREEK...LITTLE CREEK...CAESAR
CREEK...BAILEY BRANCH...MILLER CREEK...PANTHER CREEK...HICKORY
CREEK...ASH CREEK...BOLT CREEK...CEDAR CREEK...WOLF CREEK...MITCHELL
CREEK...BACON BRANCH...FANNY BRANCH...CAHOKIA CREEK AND SHAW POINT
BRANCH.

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 3900 8925 3903 8925 3903 8958 3900 8959
      3900 8970 3935 8969 3935 8914 3922 8913
      3922 8881 3899 8880

$$

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, 1:29 AM CDT	Flash Flood Warning	LSX	Bond, Fayette, Marion	6 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.