Alert archive / Illinois / Flash Flood Warnings in 2013

Flash Flood Warning 21, NWS Quad Cities, IA

May 28, 2013Des Moines County, Iowa; Henderson County, Warren County, Illinois

NWS Quad Cities, IA issued this flash flood warning at May 28, 2013, 6:22 PM CDT for Des Moines County, Iowa; Henderson County, Warren County, Illinois. It was in force for 10 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: May 28, 2013, 6:22 PM CDT (23:22 UTC)
Expired: May 29, 2013, 4:45 AM CDT
In force: 10 hr
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: None

Counties Des Moines County, IA, Henderson County, IL, Warren County, IL

The radar

The Quad Cities radar (KDVN), 106 km from the middle of the area, began a volume at 23:23 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.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.4 hours before the alert went out and 109 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: 184 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 142 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

916 
WGUS53 KDVN 282322
FFWDVN
IAC057-ILC071-187-290815-
/O.NEW.KDVN.FF.W.0021.130528T2322Z-130529T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
622 PM CDT TUE MAY 28 2013

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DES MOINES COUNTY IN SOUTHEAST IOWA...
  THIS INCLUDES THE CITY OF BURLINGTON...
  HENDERSON COUNTY IN WEST CENTRAL ILLINOIS...
  THIS INCLUDES THE CITY OF OQUAWKA...
  WARREN COUNTY IN WEST CENTRAL ILLINOIS...
  THIS INCLUDES THE CITY OF MONMOUTH...

* UNTIL 315 AM CDT WEDNESDAY

* AT 614 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  FLASH FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA. RADAR
  INDICATED THAT 1 TO 2 INCHES OF RAIN HAD ALREADY FALLEN OVER THE 
  PAST HOUR AN A HALF...AND THAT MORE RAIN IS ON THE WAY OVERNIGHT.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MONMOUTH   
  LITTLE YORK AND MEDIAPOLIS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL OF 1 TO 2 INCHES IS EXPECTED TONIGHT.

FLASH FLOODING MEANS WATER WILL RISE RAPIDLY TO LEVELS CAUSING A
THREAT TO LIFE AND PROPERTY. TAKE IMMEDIATE PRECAUTIONS.

DO NOT DRIVE ON FLOODED ROADS. MOST FATALITIES OCCUR IN VEHICLES
SWEPT AWAY IN FLOOD WATERS AS SHALLOW AS 1 FOOT.

FLOODING OF SMALL STREAMS AND CREEKS...HIGHWAYS AND STREETS...
UNDERPASSES AND LOW LYING URBAN AND RURAL AREAS IS LIKELY.

&&

LAT...LON 4064 9118 4064 9119 4067 9112 4070 9111
      4070 9114 4072 9117 4071 9118 4072 9121
      4077 9130 4081 9141 4082 9137 4108 9137
      4106 9044 4063 9045

$$

12

3 follow-up statements

923 
WGUS73 KDVN 290206
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
906 PM CDT TUE MAY 28 2013

IAC057-ILC071-187-290815-
/O.CON.KDVN.FF.W.0021.000000T0000Z-130529T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DES MOINES IA-WARREN IL-HENDERSON IL-
906 PM CDT TUE MAY 28 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 AM CDT WEDNESDAY
FOR HENDERSON...WARREN AND DES MOINES COUNTIES...

AT 859 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
ANOTHER ROUND OF THUNDERSTORMS HEADING FOR THE AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO IOWA ARMY
AMMUNITION PLANT...ROZETTA...OQUAWKA...GULF PORT...GLADSTONE...
BIGGSVILLE...MONMOUTH...LITTLE YORK...KIRKWOOD...WEST BURLINGTON...
MIDDLETOWN...MEDIAPOLIS...DANVILLE AND BURLINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL OF AROUND 1 INCH IS EXPECTED.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING.

DO NOT DRIVE ON FLOODED ROADS. MOST FATALITIES OCCUR IN VEHICLES
SWEPT AWAY IN FLOOD WATERS AS SHALLOW AS 1 FOOT.

FLOODING OF SMALL STREAMS AND CREEKS...HIGHWAYS AND STREETS...
UNDERPASSES AND LOW LYING URBAN AND RURAL AREAS IS LIKELY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING
FOR SOUTHEASTERN IOWA AND NORTHEAST MISSOURI.

&&

LAT...LON 4064 9118 4064 9119 4067 9112 4070 9111
      4070 9114 4072 9117 4071 9118 4072 9121
      4077 9130 4081 9141 4082 9137 4108 9137
      4106 9044 4063 9045

$$

WOLF

927 
WGUS53 KDVN 290804
FFWDVN
IAC057-ILC071-187-290945-
/O.EXT.KDVN.FF.W.0021.000000T0000Z-130529T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
304 AM CDT WED MAY 29 2013

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  DES MOINES COUNTY IN SOUTHEAST IOWA...
  THIS INCLUDES THE CITY OF BURLINGTON...
  HENDERSON COUNTY IN WEST CENTRAL ILLINOIS...
  THIS INCLUDES THE CITY OF OQUAWKA...
  WARREN COUNTY IN WEST CENTRAL ILLINOIS...
  THIS INCLUDES THE CITY OF MONMOUTH...

* UNTIL 445 AM CDT

* AT 300 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO IOWA ARMY
  AMMUNITION PLANT...ROZETTA...GULF PORT...GLADSTONE...BIGGSVILLE...
  LITTLE YORK...KIRKWOOD...WEST BURLINGTON...MIDDLETOWN...MEDIAPOLIS
  AND DANVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS AROUND 1 INCH ARE EXPECTED.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING.

DO NOT DRIVE ON FLOODED ROADS. MOST FATALITIES OCCUR IN VEHICLES
SWEPT AWAY IN FLOOD WATERS AS SHALLOW AS 1 FOOT.

FLOODING OF SMALL STREAMS AND CREEKS...HIGHWAYS AND STREETS...
UNDERPASSES AND LOW LYING URBAN AND RURAL AREAS IS LIKELY.

&&

LAT...LON 4064 9118 4064 9119 4067 9112 4070 9111
      4070 9114 4072 9117 4071 9118 4072 9121
      4077 9130 4081 9141 4082 9137 4108 9137
      4106 9044 4063 9045

$$

877 
WGUS73 KDVN 290952
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
452 AM CDT WED MAY 29 2013

IAC057-ILC071-187-291001-
/O.EXP.KDVN.FF.W.0021.000000T0000Z-130529T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DES MOINES IA-WARREN IL-HENDERSON IL-
452 AM CDT WED MAY 29 2013

...THE FLASH FLOOD WARNING HAS EXPIRED FOR HENDERSON...WARREN AND DES
MOINES COUNTIES...

THE FLASH FLOOD WARNING HAS BEEN REPLACED BY AN AREAL FLOOD WARNING 
DUE TO LINGERING FLOODING FROM THE OVERNIGHT RAINS.

LAT...LON 4064 9118 4064 9119 4067 9112 4070 9111
      4070 9114 4072 9117 4071 9118 4072 9121
      4077 9130 4081 9141 4082 9137 4108 9137
      4106 9044 4063 9045

$$

DLF

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 9:33 PM CDT	River Flood Warning	DVN	Johnson, Washington	5 days
May 28, 1:14 AM CDT	Special Weather Statement	DVN	Benton, Buchanan, Cedar, Delaware, Iowa, Johnson and 2 more	91 min
May 28, 2:24 AM CDT	Special Weather Statement	DVN	Lee, Van Buren	66 min
May 28, 3:36 AM CDT	Special Weather Statement	DVN	Benton, Buchanan, Delaware, Dubuque, Iowa, Johnson and 2 more	54 min
May 28, 5:58 AM CDT	Special Weather Statement	DVN	Henry, Jefferson, Keokuk, Washington	47 min
May 28, 6:45 AM CDT	Special Weather Statement	DVN	Des Moines, Henry	60 min
May 28, 10:53 AM CDT	Flash Flood Watch	DVN	Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 8 more	19 hr
May 28, 5:02 PM CDT	Special Weather Statement	DVN	Keokuk	28 min
May 28, 5:22 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Keokuk, Washington	38 min
May 28, 6:20 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Louisa	40 min
May 28, 6:57 PM CDT	Flash Flood Warning	DVN	Henry, Jefferson, Keokuk, Washington	9 hr
May 28, 4:50 PM CDT	Special Weather Statement	DVN	Mercer	25 min
May 28, 5:32 PM CDT	Severe Thunderstorm Warning	DVN	Warren	43 min
May 28, 6:46 PM CDT	Special Weather Statement	DVN	Henry	44 min

Nearby

Flash Flood Warnings in Illinois, 2013 Flash Flood Warnings in Iowa, 2013 Every flash flood warning in 2013

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.