Alert archive / Iowa / Flash Flood Warnings in 2021

Flash Flood Warning 2, NWS Quad Cities, IA

June 24, 2021Jefferson County, Van Buren County, Iowa

NWS Quad Cities, IA issued this flash flood warning at Jun 24, 2021, 8:42 PM CDT for Jefferson County, Van Buren County, Iowa. It was in force for 6 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 24, 2021, 8:42 PM CDT (01:42 UTC)
Expired: Jun 25, 2021, 2:49 AM CDT
In force: 6 hr
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: None

Counties Jefferson County, IA, Van Buren County, IA

The radar

The Quad Cities radar (KDVN), 148 km from the middle of the area, began a volume at 01:42 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 24, 8:55 PM CDT	FLASH FLOOD	4 Nne Selma, IA	CORRECTS PREVIOUS FLASH FLOOD REPORT FROM 4 NNE SELMA. SHERIFF OFFICE RECEIVED A REPORT OF WATER OVER 265TH STREET BETWEEN CLEARWOOD AVE AND DEWBERRY AVE. TIME OF CALL 855 PM.
Jun 24, 9:02 PM CDT	FLASH FLOOD	3 Ssw Libertyville, IA	CORRECTS PREVIOUS FLASH FLOOD REPORT FROM 3 SSW LIBERTYVILLE. SHERIFF OFFICE RECEIVED REPORT OF DOUDS RD FLOODED NEAR LICK CREEK. TIME OF CALL 902 PM.
Jun 24, 9:30 PM CDT	FLASH FLOOD	3 Ssw Libertyville, IA	SHERIFF OFFICE RECEIVED REPORT OF DOUDS RD FLOODED NEAR LICK CREEK. TIME ESTIMATED.
Jun 24, 9:30 PM CDT	FLASH FLOOD	4 Nne Selma, IA	SHERIFF OFFICE RECEIVED A REPORT OF WATER OVER 265TH STREET BETWEEN CLEARWOOD AVE AND DEWBERRY AVE. TIME ESTIMATED.
Jun 24, 10:12 PM CDT	FLASH FLOOD	2 S Libertyville, IA	A DEPUTY REPORTED WATER ON GRASSTREE AVE NORTH OF 265TH ST NEAR THE BRIDGE.
Jun 24, 11:19 PM CDT	FLASH FLOOD	1 Nne Collett, IA	A LOG WAS WASHED ONTO 265TH ST. WEST OF HIGHWAY 1.

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, 1.7 hours before the alert went out and 154 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: 112 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 817 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 151 m²/s²
0-3 km storm-relative helicity: 230 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted.

353 
WGUS53 KDVN 250142
FFWDVN
IAC101-177-250745-
/O.NEW.KDVN.FF.W.0002.210625T0142Z-210625T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Quad Cities IA IL
842 PM CDT Thu Jun 24 2021

The National Weather Service in Quad Cities has issued a

* Flash Flood Warning for...
  Southwestern Jefferson County in southeastern Iowa...
  Northwestern Van Buren County in southeastern Iowa...

* Until 245 AM CDT Friday.

* At 842 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Fairfield, Batavia, Birmingham, Libertyville, Douds, Leando, 
  Collett, Kilbourn, Jefferson County Park, Jefferson County 
  Fairgrounds, Selma, Mount Zion, Van Buren County Fairgrounds and 
  Beckwith.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 4090 9218 4103 9218 4103 9186 4075 9185
      4075 9218

FLASH FLOOD...RADAR INDICATED

$$

McClure

4 follow-up statements

350 
WGUS73 KDVN 250201
FFSDVN

Flash Flood Statement
National Weather Service Quad Cities IA IL
901 PM CDT Thu Jun 24 2021

IAC101-177-250745-
/O.CON.KDVN.FF.W.0002.000000T0000Z-210625T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson IA-Van Buren IA-
901 PM CDT Thu Jun 24 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FRIDAY FOR 
SOUTHWESTERN JEFFERSON AND NORTHWESTERN VAN BUREN COUNTIES...

At 901 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 3 inches of rain have 
fallen, with the heaviest rain occurring from Selma and Douds to 
southwest of Libertyville. Flash flooding is ongoing or expected to 
begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Fairfield, Batavia, Birmingham, Libertyville, Douds, Leando, 
  Collett, Kilbourn, Jefferson County Park, Jefferson County 
  Fairgrounds, Selma, Mount Zion, Van Buren County Fairgrounds and 
  Beckwith.

This includes the following streams and drainages...
  Mitchell Creek, Little Creek, Competine Creek, Hickory Creek, 
  Brush Creek, Lick Creek, Cedar Creek, Summer Creek, Coon Creek, 
  Wolf Creek, Des Moines River, Rock Creek, Little Lick Creek, 
  Chequest Creek, East Branch Lick Creek, Coppers Creek, Honey 
  Creek, Troy Creek, Church Creek, Holcomb Creek, Vesser Creek, Crow 
  Creek and Stump Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 4090 9218 4103 9218 4103 9186 4075 9185
      4075 9218

FLASH FLOOD...RADAR INDICATED

$$

McClure

831 
WGUS73 KDVN 250313
FFSDVN

Flash Flood Statement
National Weather Service Quad Cities IA IL
1013 PM CDT Thu Jun 24 2021

IAC101-177-250745-
/O.CON.KDVN.FF.W.0002.000000T0000Z-210625T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson IA-Van Buren IA-
1013 PM CDT Thu Jun 24 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FRIDAY FOR 
SOUTHWESTERN JEFFERSON AND NORTHWESTERN VAN BUREN COUNTIES...

At 1013 PM CDT, local law enforcement reported flash flooding with 
Douds Road flooded near Lick Creek, and water over 265th Street 
between Clearwood Avenue and Dewberry Avenue.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Law enforcement reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Fairfield, Batavia, Birmingham, Libertyville, Douds, Leando, 
  Collett, Kilbourn, Jefferson County Park, Jefferson County 
  Fairgrounds, Selma, Mount Zion, Van Buren County Fairgrounds and 
  Beckwith.

This includes the following streams and drainages...
  Mitchell Creek, Little Creek, Competine Creek, Hickory Creek, 
  Brush Creek, Lick Creek, Cedar Creek, Summer Creek, Coon Creek, 
  Wolf Creek, Des Moines River, Rock Creek, Little Lick Creek, 
  Chequest Creek, East Branch Lick Creek, Coppers Creek, Honey 
  Creek, Troy Creek, Church Creek, Holcomb Creek, Vesser Creek, Crow 
  Creek and Stump Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 4090 9218 4103 9218 4103 9186 4075 9185
      4075 9218

FLASH FLOOD...OBSERVED

$$

McClure

309 
WGUS53 KDVN 250614
FFWDVN
IAC101-177-250945-
/O.EXT.KDVN.FF.W.0002.000000T0000Z-210625T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Quad Cities IA IL
114 AM CDT Fri Jun 25 2021

The National Weather Service in Quad Cities has extended the

* Flash Flood Warning for...
  Southwestern Jefferson County in southeastern Iowa...
  Northwestern Van Buren County in southeastern Iowa...

* Until 445 AM CDT.

* At 114 AM CDT, local law enforcement reported that water was over 
  Grasstree Avenue north of 265th street near the bridge.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Law enforcement reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Fairfield, Batavia, Birmingham, Libertyville, Douds, Leando, 
  Collett, Kilbourn, Jefferson County Park, Jefferson County 
  Fairgrounds, Selma, Mount Zion, Van Buren County Fairgrounds and 
  Beckwith.

This includes the following streams and drainages...
  Mitchell Creek, Little Creek, Competine Creek, Hickory Creek, 
  Brush Creek, Lick Creek, Cedar Creek, Summer Creek, Coon Creek, 
  Wolf Creek, Des Moines River, Rock Creek, Little Lick Creek, 
  Chequest Creek, East Branch Lick Creek, Coppers Creek, Honey 
  Creek, Troy Creek, Church Creek, Holcomb Creek, Vesser Creek, Crow 
  Creek and Stump Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 4090 9218 4103 9218 4103 9186 4075 9185
      4075 9218

FLASH FLOOD...OBSERVED

$$

McClure

952 
WGUS73 KDVN 250749
FFSDVN

Flash Flood Statement
National Weather Service Quad Cities IA IL
249 AM CDT Fri Jun 25 2021

IAC101-177-250759-
/O.CAN.KDVN.FF.W.0002.000000T0000Z-210625T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson IA-Van Buren IA-
249 AM CDT Fri Jun 25 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHWESTERN JEFFERSON AND 
NORTHWESTERN VAN BUREN COUNTIES...

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

A Flash Flood Watch remains in effect until 700 AM CDT Saturday for 
portions of west central Illinois, southeast Iowa and northeast 
Missouri.

LAT...LON 4090 9218 4103 9218 4103 9186 4075 9185
      4075 9218

$$

Uttech

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 7:23 PM CDT	Severe Thunderstorm Warning	DVN	Jefferson, Van Buren	40 min
Jun 24, 8:13 PM CDT	Special Weather Statement	DVN	Jefferson	47 min
Jun 24, 11:34 PM CDT	Severe Thunderstorm Warning	DVN	Van Buren	41 min
Jun 24, 11:44 PM CDT	Severe Thunderstorm Warning	DVN	Lee	46 min
Jun 25, 2:49 AM CDT	Areal Flood Warning	DVN	Jefferson, Van Buren	17 hr
Jun 25, 4:07 AM CDT	River Flood Warning	DVN	Van Buren	10 hr
Jun 25, 4:07 AM CDT	River Flood Warning	DVN	Lee	62 hr
Jun 25, 5:05 AM CDT	Special Weather Statement	DVN	Cedar	40 min
Jun 25, 8:07 AM CDT	Areal Flood Warning	DVN	Van Buren	26 hr
Jun 25, 2:12 PM CDT	Special Weather Statement	DVN	Dubuque	33 min
Jun 25, 2:48 PM CDT	Special Weather Statement	DVN	Delaware, Dubuque	57 min
Jun 25, 4:26 PM CDT	Special Weather Statement	DVN	Delaware, Dubuque	49 min
Jun 25, 6:18 PM CDT	Special Weather Statement	DVN	Benton, Jackson, Jones, Linn	42 min

Nearby

Flash Flood Warnings in Iowa, 2021 Every flash flood warning in 2021

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.