Alert archive / Illinois / Flash Flood Warnings in 2011

Flash Flood Warning 49, NWS Paducah, KY

April 27, 20117 counties in Illinois; Bollinger County, Cape Girardeau County, Perry County, Missouri

NWS Paducah, KY issued this flash flood warning at Apr 27, 2011, 4:22 PM CDT for 7 counties in Illinois; Bollinger County, Cape Girardeau County, Perry County, Missouri. 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
Apr 27, 2011, 4:22 PM CDT (21:22 UTC)
Expired
Apr 27, 2011, 10:00 PM CDT
In force
6 hr
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Flood severity
None

Counties Franklin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Perry County, IL, Union County, IL, Williamson County, IL, Bollinger County, MO, Cape Girardeau County, MO, Perry County, MO

The radar

The Paducah radar (KPAH), 102 km from the middle of the area, began a volume at 21:23 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

TimeReportWhereRemark
Apr 27, 5:01 PM CDTFLASH FLOODDu Quoin, ILFLASH FLOODING REPORTED ALONG HIGHWAY 51 AND NORTH HICKORY IN THE COMMUNITY.

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, 9.4 hours before the alert went out and 271 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 2011-04-27Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2011-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939587897117136Sfc1 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
791 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
93 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.

326 
WGUS53 KPAH 272122
FFWPAH
ILC055-077-081-087-145-181-199-MOC017-031-157-280100-
/O.NEW.KPAH.FF.W.0049.110427T2122Z-110428T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
422 PM CDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FRANKLIN...JEFFERSON...PERRY...JACKSON...NORTHERN JOHNSON...UNION  
AND WILLIAMSON COUNTY IN SOUTHERN ILLINOIS...
  NORTHEASTERN BOLLINGER...NORTHERN CAPE GIRARDEAU AND PERRY COUNTY 
IN SOUTHEAST MISSOURI... 

* UNTIL 800 PM CDT.

* AT 123 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
SEVERAL BANDS SHOWERS AND THUNDERSTORMS WITH TORRENTIAL 
RAIN...MOVING NORTHEAST AROUND 35 MPH ACROSS THE WARNED AREA. THESE 
BANDS OF RAIN WILL LIKELY PERSIST OFF AN ON THROUGH 6 PM CDT. AFTER 
THE THUNDERSTORMS MOVE OUT OF THE AREA...A BROAD AREA OF MODERATE TO 
HEAVY RAIN WILL LIKELY PERSIST THROUGH 7 PM CDT. 

DURING THIS TIME...ONE TO TWO INCHES OF RAIN WILL BE LIKELY...WITH 
ISOLATED THREE INCH RAINFALL AMOUNTS NOT OUT OF THE QUESTION. THIS 
WILL ONLY WORSEN PROBLEMS WITH FLOODED ROADWAYS...CREEKS AND STREAMS 
IN THE SHORT TERM.

* LOCATIONS IN THE WARNING INCLUDE...
  CAPE GIRARDEAU...
  JACKSON...
  DU QUOIN...
  MURPHYSBORO...
  ANNA...
  BENTON...
  MOUNT VERNON...
  PINCKNEYVILLE...
  PERRYVILLE...
  GOREVILLE...
  HERRIN... 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
PADUCAH.

&&

LAT...LON 3753 8872 3734 8933 3734 8948 3726 8954
      3753 9016 3764 9016 3788 8994 3791 8984
      3781 8970 3795 8961 3822 8959 3822 8917
      3848 8914 3848 8871

$$

SMITH
2 follow-up statements
173 
WGUS53 KPAH 280054
FFWPAH
ILC055-077-081-087-145-181-199-MOC017-031-157-280300-
/O.EXT.KPAH.FF.W.0049.000000T0000Z-110428T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
754 PM CDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  FRANKLIN...JEFFERSON...PERRY...JACKSON...NORTHERN JOHNSON...UNION 
AND WILLIAMSON COUNTIES IN SOUTHERN ILLINOIS...
  NORTHEASTERN BOLLINGER...NORTHERN CAPE GIRARDEAU AND PERRY 
COUNTIES IN SOUTHEAST MISSOURI...

* UNTIL 1000 PM CDT.

* AT 746 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
TO SHOW AREAS OF MODERATE TO LOCALLY HEAVY RAINFALL IN THE WARNED 
AREA. AT 722 PM CDT...A TRAINED STORM SPOTTER REPORTED NEARLY 1.5 
INCHES OF RAIN ACROSS THE DIX AREA OF NORTHERN JEFFERSON COUNTY IN 
SOUTHERN ILLINOIS. EAST GRAND ROAD IN THE GRAND PRAIRIE TOWNSHIP 
REMAINS FLOODED AND IMPASSABLE...AS WELL AS OTHER LOCAL TOWNSHIP 
ROADS IN PARTS OF JEFFERSON COUNTY.



* LOCATIONS IN THE WARNING INCLUDE...
  MURPHYSBORO...
  PERRYVILLE...
  BENTON...
  HERRIN...

ADDITIONAL RAINFALL AMOUNTS NEAR AN INCH ARE POSSIBLE IN THE WARNED 
AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
PADUCAH.

&&

LAT...LON 3753 8872 3734 8933 3734 8948 3726 8954
      3753 9016 3764 9016 3788 8994 3791 8984
      3781 8970 3795 8961 3822 8959 3822 8917
      3848 8914 3848 8871

$$

SMITH
921 
WGUS73 KPAH 280221
FFSPAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
921 PM CDT WED APR 27 2011

ILC055-077-081-087-145-181-199-MOC017-031-157-280300-
/O.CON.KPAH.FF.W.0049.000000T0000Z-110428T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JOHNSON IL-UNION IL-WILLIAMSON IL-JACKSON IL-FRANKLIN IL-PERRY IL-
JEFFERSON IL-BOLLINGER MO-CAPE GIRARDEAU MO-PERRY MO-
921 PM CDT WED APR 27 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
JEFFERSON...PERRY AND FRANKLIN COUNTIES IN SOUTH CENTRAL ILLINOIS...
AND JACKSON...WILLIAMSON...UNION AND NORTHERN JOHNSON COUNTIES IN
SOUTHERN ILLINOIS...AND PERRY...NORTHERN CAPE GIRARDEAU AND
NORTHEASTERN BOLLINGER COUNTIES IN SOUTHEAST MISSOURI...

AT 925 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT MOST OF THE HEAVY RAIN THAT HAS CAUSED CONSIDERABLE PROBLEMS 
WITH FLOODING OR WATERWAYS AND ROADWAYS ACROSS THE WARNED AREA HAS 
DIMINISHED SIGNIFICANTLY DURING SINCE 9 PM CDT. THE THREAT OF 
ENHANCED FLOODING FROM THIS RAINFALL HAS DIMINISHED AT THIS TIME. 

THEREFORE...THE FLASH FLOOD WARNING THAT COVERS PART OF SOUTHWEST 
ILLINOIS AND SOUTHEAST MISSOURI WILL BE ALLOWED TO EXPIRE AT 10 PM 
CDT. 

PERSONS IN THE WARNED AREA SHOULD NOTE THAT AN AREAL FLOOD WARNING 
REMAINS IN EFFECT OVERNIGHT FOR THESE COUNTIES...AS RUNOFF FROM THE 
RAIN WILL STILL CONTINUE TO CAUSE PROBLEMS FOR RESIDENTS AND 
TRAVELERS OVERNIGHT AND INTO THURSDAY. 

LAT...LON 3753 8872 3734 8933 3734 8948 3726 8954
      3753 9016 3764 9016 3788 8994 3791 8984
      3781 8970 3795 8961 3822 8959 3822 8917
      3848 8914 3848 8871

$$

SMITH

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 7:49 PM CDTFlash Flood WarningPAHAlexander, Hardin, Jackson, Johnson, Massac, Pope and 4 more6 hr
Apr 26, 9:04 PM CDTFlash Flood WarningPAHFranklin, Gallatin, Hamilton, Jefferson, Perry, Wayne and 1 more6 hr
Apr 26, 9:54 PM CDTFlash Flood WarningPAHEdwards, Wabash6 hr
Apr 27, 9:10 AM CDTAreal Flood WarningPAHAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more48 hr
Apr 27, 1:49 PM CDTSevere Thunderstorm WarningPAHUnion26 min
Apr 27, 2:12 PM CDTSevere Thunderstorm WarningPAHJackson, Union33 min
Apr 27, 2:33 PM CDTSevere Thunderstorm WarningPAHFranklin, Jackson, Jefferson, Perry, Williamson27 min
Apr 27, 3:59 PM CDTTornado WarningPAHAlexander31 min
Apr 27, 4:16 PM CDTTornado WarningPAHJackson, Union29 min
Apr 27, 4:25 PM CDTTornado WarningPAHAlexander, Pulaski, Union35 min
Apr 27, 4:44 PM CDTTornado WarningPAHJackson, Union31 min
Apr 27, 4:56 PM CDTTornado WarningPAHFranklin, Johnson, Pulaski, Union, Williamson49 min
Apr 27, 5:35 PM CDTTornado WarningPAHPope, Saline16 min
Apr 27, 5:36 PM CDTFlash Flood WarningPAHEdwards, Gallatin, Hamilton, Saline, Wabash, Wayne and 1 more6 hr
Apr 26, 7:04 PM CDTFlash Flood WarningPAHButler, Carter, New Madrid, Ripley, Stoddard, Wayne6 hr
Apr 26, 7:05 PM CDTSevere Thunderstorm WarningPAHNew Madrid, Scott, Stoddard25 min
Apr 26, 7:36 PM CDTFlash Flood WarningPAHButler12 hr
Apr 27, 2:30 AM CDTFlash Flood WarningPAHButler12 hr
Apr 27, 9:03 AM CDTRiver Flood WarningPAHCarter82 min
Apr 27, 12:31 PM CDTSevere Thunderstorm WarningPAHCarter, Ripley29 min
Apr 27, 12:42 PM CDTSevere Thunderstorm WarningPAHButler, Ripley33 min
Apr 27, 12:58 PM CDTSevere Thunderstorm WarningPAHButler, Carter, Wayne32 min
Apr 27, 1:01 PM CDTSevere Thunderstorm WarningPAHBollinger, Stoddard, Wayne29 min
Apr 27, 1:28 PM CDTSevere Thunderstorm WarningPAHBollinger, Cape Girardeau32 min
Apr 27, 1:34 PM CDTSevere Thunderstorm WarningPAHCarter26 min
Apr 27, 1:59 PM CDTSevere Thunderstorm WarningPAHCarter, Wayne31 min
Apr 27, 2:26 PM CDTSevere Thunderstorm WarningPAHBollinger, Butler, Stoddard34 min
Apr 27, 2:30 PM CDTSevere Thunderstorm WarningPAHWayne30 min
Apr 27, 2:32 PM CDTFlash Flood WarningPAHButler24 hr
Apr 27, 2:53 PM CDTSevere Thunderstorm WarningPAHWayne37 min
Apr 27, 3:04 PM CDTSevere Thunderstorm WarningPAHButler26 min
Apr 27, 3:21 PM CDTTornado WarningPAHButler24 min
Apr 27, 3:31 PM CDTSevere Thunderstorm WarningPAHBollinger, Butler, Stoddard29 min
Apr 27, 3:34 PM CDTSevere Thunderstorm WarningPAHStoddard41 min
Apr 27, 3:41 PM CDTTornado WarningPAHBollinger19 min
Apr 27, 3:43 PM CDTTornado WarningPAHBollinger, Cape Girardeau17 min
Apr 27, 3:52 PM CDTTornado WarningPAHBollinger, Cape Girardeau, Perry23 min
Apr 27, 3:55 PM CDTTornado WarningPAHBollinger, Cape Girardeau, New Madrid, Scott, Stoddard35 min
Apr 27, 4:01 PM CDTTornado WarningPAHBollinger, Cape Girardeau14 min

Nearby

Flash Flood Warnings in Illinois, 2011Flash Flood Warnings in Missouri, 2011Every flash flood warning in 2011

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.