Alert archive / Illinois / Flash Flood Warnings in 2016

Flash Flood Warning 44, NWS St. Louis, MO

August 15, 2016Bond County, Montgomery County, Illinois

NWS St. Louis, MO issued this flash flood warning at Aug 15, 2016, 6:59 AM CDT for Bond County, Montgomery County, Illinois. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 15, 2016, 6:59 AM CDT (11:59 UTC)
Expired
Aug 15, 2016, 12:00 PM CDT
In force
5 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Bond County, IL, Montgomery County, IL

The radar

The St Louis radar (KLSX), 107 km from the middle of the area, began a volume at 11:59 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 12.0 hours before the alert went out and 151 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2016-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2016-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1143 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

737 
WGUS53 KLSX 151159
FFWLSX
ILC005-135-151700-
/O.NEW.KLSX.FF.W.0044.160815T1159Z-160815T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
659 AM CDT MON AUG 15 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL NOON CDT

* AT 656 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN IN THE PAST HOUR. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GREENVILLE...LITCHFIELD...HILLSBORO...TAYLOR SPRINGS...COFFEEN...
  MULBERRY GROVE...SCHRAM CITY...SORENTO...RENO...WOBURN...
  VAN BURENSBURG...IRVING...PANAMA...FILLMORE...DONNELLSON...
  SMITHBORO...OLD RIPLEY...WALSHVILLE...SHILOH HILL AND CHAPMAN.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA.

THIS INCLUDES INTERSTATE 70 IN ILLINOIS BETWEEN EXITS 45 AND 52.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3887 8926 3887 8960 3888 8964 3900 8964
      3900 8970 3917 8970 3922 8925

$$

TILLY
2 follow-up statements
124 
WGUS73 KLSX 151446
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
946 AM CDT MON AUG 15 2016

ILC005-135-151700-
/O.CON.KLSX.FF.W.0044.000000T0000Z-160815T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BOND IL-MONTGOMERY IL-
946 AM CDT MON AUG 15 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL NOON CDT FOR
NORTHERN BOND AND SOUTHERN MONTGOMERY COUNTIES...

AT 945 AM CDT...DOPPLER RADAR INDICATED HEAVY RAIN HAD FALLEN ACROSS
THE WARNED AREA. UP TO THREE INCHES OF RAIN FELL EARLY THIS MORNING.
FLASH FLOODING IS LIKELY ONGOING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GREENVILLE...LITCHFIELD...HILLSBORO...TAYLOR SPRINGS...COFFEEN...
MULBERRY GROVE...SCHRAM CITY...SORENTO...RENO...WOBURN...
VAN BURENSBURG...IRVING...PANAMA...FILLMORE...DONNELLSON...
SMITHBORO...OLD RIPLEY...WALSHVILLE...SHILOH HILL AND CHAPMAN.

A FEW MODERATE SHOWERS WILL CONTINUE THROUGH THE MORNING AND EARLY
AFTERNOON HOURS...WHICH MAY KEEP FLOODWATERS FROM QUICKLY RECEDING.

THIS INCLUDES INTERSTATE 70 IN ILLINOIS BETWEEN EXITS 45 AND 52.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.

&&

LAT...LON 3887 8926 3887 8960 3888 8964 3900 8964
      3900 8970 3917 8970 3922 8925

$$

KD
910 
WGUS73 KLSX 151653
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1153 AM CDT MON AUG 15 2016

ILC005-135-151703-
/O.EXP.KLSX.FF.W.0044.000000T0000Z-160815T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BOND IL-MONTGOMERY IL-
1153 AM CDT MON AUG 15 2016

...THE FLASH FLOOD WARNING FOR NORTHERN BOND AND SOUTHERN MONTGOMERY
COUNTIES WILL EXPIRE AT NOON CDT...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3887 8926 3887 8960 3888 8964 3900 8964
      3900 8970 3917 8970 3922 8925

$$

KD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 15, 4:04 AM CDTFlash Flood WarningLSXMadison, Saint Clair6 hr
Aug 15, 5:03 AM CDTFlash Flood WarningLSXMonroe, Saint Clair6 hr
Aug 15, 5:50 AM CDTFlash Flood WarningLSXMadison, Saint Clair5 hr
Aug 15, 9:25 AM CDTAreal Flood WarningLSXClinton, Monroe, Randolph, Saint Clair, Washington3 hr
Aug 15, 9:58 AM CDTAreal Flood WarningLSXMadison, Saint Clair3 hr
Aug 15, 10:48 AM CDTAreal Flood WarningLSXMadison, Saint Clair3 hr
Aug 15, 11:01 AM CDTAreal Flood WarningLSXMonroe, Saint Clair3 hr
Aug 15, 1:50 PM CDTAreal Flood WarningLSXMadison, Monroe, Saint Clair3 hr

Nearby

Flash Flood Warnings in Illinois, 2016Every flash flood warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.