Alert archive / Illinois / Flash Flood Warnings in 2014

Flash Flood Warning 28, NWS St. Louis, MO

October 2, 20145 counties in Illinois; Lincoln County, Missouri

NWS St. Louis, MO issued this flash flood warning at Oct 2, 2014, 4:56 PM CDT for 5 counties in Illinois; Lincoln County, Missouri. 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
Oct 2, 2014, 4:56 PM CDT (21:56 UTC)
Expired
Oct 2, 2014, 11:00 PM CDT
In force
6 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Calhoun County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Montgomery County, IL, Lincoln County, MO

The radar

The St Louis radar (KLSX), 48 km from the middle of the area, began a volume at 21:55 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

TimeReportWhereRemark
Oct 2, 5:00 PM CDTHEAVY RAIN 6.641 S Medora, ILSTORM TOTAL
Oct 2, 10:45 PM CDTFLOODCarrollton, ILNO ROAD CLOSURES. SOME ROADS HAVE WATER ON THEM.

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, 9.9 hours before the alert went out and 204 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 12:00Z on 2014-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2014-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 square meters per square second.193958Sfc1 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
1094 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
265 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.

589 
WGUS53 KLSX 022156
FFWLSX
ILC013-061-083-117-135-MOC113-030400-
/O.NEW.KLSX.FF.W.0028.141002T2156Z-141003T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
456 PM CDT THU OCT 2 2014

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CALHOUN COUNTY IN SOUTHWEST ILLINOIS...
  JERSEY COUNTY IN SOUTHWEST ILLINOIS...
  LINCOLN COUNTY IN EAST CENTRAL MISSOURI...
  MACOUPIN COUNTY IN SOUTHWEST ILLINOIS...
  NORTHERN MONTGOMERY COUNTY IN SOUTH CENTRAL ILLINOIS...
  SOUTHERN GREENE COUNTY IN SOUTHWEST ILLINOIS...

* UNTIL 1100 PM CDT

* AT 455 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADARS 
  INDICATED THAT ANOTHER WAVE OF THUNDERSTORMS WILL BE PASSING
  THROUGH THE BI-STATE AREA THIS EVENING.  THESE STORMS WILL
  BRING ADDITIONAL HEAVY RAIN TO AREAS BETWEEN TROY MISSOURI
  AND RAYMOND ILLINOIS THAT RECEIVED BETWEEN 3 AND 7 INCHES OF RAIN
  LAST NIGHT AND THIS MORNING.  THIS ADDITIONAL RAINFALL WILL
  AGGREVATE ONGOING FLOODING AND INCREASE ALREADY HIGH WATER
  LEVELS.     

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CARLINVILLE...ELSBERRY...GILLESPIE...JERSEYVILLE...TROY...VIRDEN...
  BRIGHTON...BUNKER HILL...CARROLLTON...DAVIS...FARMERSVILLE...
  GIRARD...GRAFTON...GREENFIELD...HARDIN...HAWK POINT...KEMPER...
  MOSCOW MILLS...OLD KANE...PALMYRA...RAYMOND...SHIPMAN...WHITE OAK
  AND WINFIELD.

ADDITIONAL RAINS IN EXCESS OF AN INCH ARE EXPECTED DURING THE 
EVENING...WITH LOCALLY HIGHER AMOUNTS.  

THIS WARNING INCLUDES BEAVER DAM STATE PARK...CUIVRE RIVER STATE
PARK...LAKE LOU YAEGER AND PERE MARQUETTE STATE PARK.

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

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.

&&

LAT...LON 3901 9002 3901 9022 3887 9101 3887 9110
      3893 9111 3893 9119 3899 9119 3900 9127
      3914 9126 3914 9118 3922 9118 3922 9072
      3953 8995 3953 8954 3936 8953 3935 8933

$$

TRUETT
1 follow-up statement
894 
WGUS73 KLSX 022341
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
641 PM CDT THU OCT 2 2014

ILC013-061-083-117-135-MOC113-030400-
/O.CON.KLSX.FF.W.0028.000000T0000Z-141003T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JERSEY IL-MACOUPIN IL-MONTGOMERY IL-CALHOUN IL-GREENE IL-LINCOLN MO-
641 PM CDT THU OCT 2 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LINCOLN...SOUTHERN
GREENE...CALHOUN...NORTHERN MONTGOMERY...MACOUPIN AND JERSEY COUNTIES
UNTIL 1100 PM CDT...

ALTHOUGH RAINFALL ACROSS THE BI-STATE AREA HAS BEEN FAIRLY LIGHT 
SINCE LATE THIS AFTERNOON...THUNDERSTORMS WITH POCKETS OF HEAVY RAIN 
WILL BE RETURNING TO THE WARNING AREA OVER THE NEXT FEW HOURS.  

RAINFALLS OF AN INCH...WITH LOCALLY HEAVIER AMOUNTS...ARE EXPECTED 
TO FALL OVER AREAS THAT HAVE ALREADY RECEIVED BETWEEN 3 AND 7 INCHES 
OF RAIN.   THE AXIS OF HEAVIEST RAINFALL...AND THE AREAS THAT WILL 
HAVE THE GREATEST POTENTIAL FOR FLASH FLOODING...EXTENDS FROM NEAR 
TROY MISSOURI...THROUGH JERSEYVILL AND CARLINVILLE...TO NEAR 
RAYMOND.

SOME ADDITIONAL LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING 
INCLUDE...ELSBERRY...GILLESPIE...VIRDEN...BRIGHTON...CARROLLTON...
DAVIS...FARMERSVILLE...GIRARD...GREEN FIELD...HARDIN...HAWK 
POINT...KEMPER...MOSCOW MILLS...OLD KANE...PALMYRA...
SHIPMAN...WHITE OAK AND WINFIELD.

THIS WARNING INCLUDES BEAVER DAM STATE PARK...CUIVRE RIVER STATE 
PARK...LAKE LOU YAEGER AND PERE MARQUETTE STATE PARK.

THIS WARNING ALSO INCLUDES...
INTERSTATE 55 IN ILLINOIS FROM EXIT 60 TO EXIT 63.

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.

&&

LAT...LON 3901 9002 3901 9022 3887 9101 3887 9110
      3893 9111 3893 9119 3899 9119 3900 9127
      3914 9126 3914 9118 3922 9118 3922 9072
      3953 8995 3953 8954 3936 8953 3935 8933

$$

TRUETT

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 11:12 PM CDTAreal Flood AdvisoryLSXGreene, Jersey, Macoupin3 hr
Oct 2, 2:14 AM CDTSevere Thunderstorm WarningLSXCalhoun, Greene, Jersey, Pike26 min
Oct 2, 3:01 AM CDTAreal Flood AdvisoryLSXCalhoun, Greene, Jersey, Macoupin, Montgomery6 hr
Oct 2, 8:47 AM CDTAreal Flood AdvisoryLSXCalhoun, Greene, Jersey, Macoupin, Montgomery6 hr
Oct 2, 11:09 AM CDTFlash Flood WarningLSXCalhoun, Greene, Jersey, Macoupin, Montgomery6 hr
Oct 2, 12:53 PM CDTSevere Thunderstorm WarningLSXClinton, Madison, Saint Clair52 min
Oct 2, 3:58 PM CDTSevere Thunderstorm WarningLSXMadison, Monroe, Saint Clair32 min
Oct 1, 7:11 PM CDTTornado WarningLSXCole, Moniteau49 min
Oct 1, 7:57 PM CDTSevere Thunderstorm WarningLSXCole, Osage48 min
Oct 1, 9:42 PM CDTRiver Flood WarningLSXMarion47 hr
Oct 2, 1:42 AM CDTSevere Thunderstorm WarningLSXAudrain, Lincoln, Montgomery, Pike, Ralls48 min
Oct 2, 2:10 AM CDTSevere Thunderstorm WarningLSXLincoln, Montgomery, Saint Charles, Warren27 min
Oct 2, 6:32 AM CDTRiver Flood WarningLSXLincoln66 hr
Oct 2, 7:11 AM CDTAreal Flood AdvisoryLSXBoone, Moniteau3 hr
Oct 2, 9:13 AM CDTRiver Flood WarningLSXLincoln4 days
Oct 2, 9:43 AM CDTAreal Flood AdvisoryLSXBoone, Moniteau6 hr
Oct 2, 10:07 AM CDTRiver Flood WarningLSXSaint Charles53 hr
Oct 2, 10:17 AM CDTRiver Flood WarningLSXGasconade, Montgomery6 days
Oct 2, 2:24 PM CDTSevere Thunderstorm WarningLSXCrawford51 min
Oct 2, 2:39 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin51 min
Oct 2, 3:14 PM CDTSevere Thunderstorm WarningLSXFranklin, Washington31 min
Oct 2, 3:22 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Saint Louis38 min

Nearby

Flash Flood Warnings in Illinois, 2014Flash Flood Warnings in Missouri, 2014Every flash flood warning in 2014

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.