Alert archive / Iowa / Flash Flood Warnings in 2014

Flash Flood Warning 4, NWS Quad Cities, IA

June 18, 20144 counties in Iowa; Jo Daviess County, Illinois

NWS Quad Cities, IA issued this flash flood warning at Jun 18, 2014, 11:46 PM CDT for 4 counties in Iowa; Jo Daviess County, Illinois. It was in force for 6 hr. 7 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 18, 2014, 11:46 PM CDT (04:46 UTC)
Expired: Jun 19, 2014, 5:45 AM CDT
In force: 6 hr
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: None

Counties Delaware County, IA, Dubuque County, IA, Jackson County, IA, Jones County, IA, Jo Daviess County, IL

The radar

The Quad Cities radar (KDVN), 103 km from the middle of the area, began a volume at 04:49 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 19, 1:10 AM CDT	HEAVY RAIN 1.13	Dubuque, IA	BETWEEN MIDNIGHT AND 1 AM.
Jun 19, 1:35 AM CDT	FLASH FLOOD	5 Sw Dubuque, IA	FLASH FLOODING REPORTED ALONG CATFISH CREEK AT SWISS VALLEY PARK. CAMP GROUND IS BEING EVACUATED.
Jun 19, 1:59 AM CDT	HEAVY RAIN 1.4	1 Ese Peosta, IA	TOTAL SINCE 6 PM. STILL RAINING.
Jun 19, 4:36 AM CDT	FLASH FLOOD	5 N Dubuque, IA	HERBER ROAD NEAR JOHN DEERE ROAD CLOSED DUE TO POSSIBLE MUDSLIDE. ROAD CLOSED DUE TO FLOODING ALONG THE LITTLE MAQUOKETA RIVER.
Jun 19, 4:36 AM CDT	FLASH FLOOD	Dubuque, IA	22ND STREET FROM CENTRAL TO ELM CLOSED DUE TO STREET FLOODING.
Jun 19, 5:07 AM CDT	HEAVY RAIN 2.19	Dubuque, IA	SINCE MIDNIGHT AT DUBUQUE SENIOR HIGH SCHOOL. RELAYED BY KCRG.
Jun 19, 5:15 AM CDT	HEAVY RAIN 4.25	1 Ese Peosta, IA	SINCE 10 PM.

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, 4.8 hours before the alert went out and 103 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: 4337 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 744 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 151 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.

703 
WGUS53 KDVN 190446
FFWDVN
IAC055-061-097-105-ILC085-191045-
/O.NEW.KDVN.FF.W.0004.140619T0446Z-140619T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1146 PM CDT WED JUN 18 2014

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN JACKSON COUNTY IN EAST CENTRAL IOWA...
  NORTHEASTERN JONES COUNTY IN EAST CENTRAL IOWA...
  NORTHEASTERN DELAWARE COUNTY IN NORTHEAST IOWA...
  DUBUQUE COUNTY IN NORTHEAST IOWA...
  THIS INCLUDES THE CITY OF DUBUQUE...
  NORTHERN JO DAVIESS COUNTY IN NORTHWEST ILLINOIS...
  THIS INCLUDES THE CITY OF GALENA...

* UNTIL 545 AM CDT

* AT 1140 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  FLASH FLOODING FROM 1 TO 2 INCHES OF RAIN FROM THUNDERSTORMS OVER  
  THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WOODBINE...
  WARREN...SCHAPVILLE...SCALES MOUND...MENOMINEE...EAST DUBUQUE...
  COUNCIL HILL...APPLE RIVER...ST. DONATUS...COLESBURG...SHERRILL...
  SAGEVILLE...RICKARDSVILLE...PEOSTA...NEW VIENNA...LUXEMBURG...HOLY
  CROSS...FARLEY...EPWORTH...DYERSVILLE...DURANGO...CENTRALIA...
  BANKSTON...BALLTOWN AND ASBURY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL OF 1 TO 2 INCHES IS EXPECTED.

PLEASE REPORT ANY FLOODING OR DAMAGE TO YOUR LOCAL LAW ENFORCEMENT
AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4263 9070 4251 9063 4251 8995 4237 9001
      4220 9095 4265 9132 4265 9091 4267 9081

$$

NICHOLS

3 follow-up statements

229 
WGUS73 KDVN 190723
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
223 AM CDT THU JUN 19 2014

IAC055-105-190724-
/O.CAN.KDVN.FF.W.0004.000000T0000Z-140619T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DELAWARE IA-JONES IA-
223 AM CDT THU JUN 19 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN JONES
AND NORTHEASTERN DELAWARE COUNTIES...

LAT...LON 4263 9070 4251 9063 4251 9038 4233 9025
      4230 9057 4229 9086 4265 9098 4265 9091
      4267 9081

$$

IAC061-097-ILC085-191045-
/O.CON.KDVN.FF.W.0004.000000T0000Z-140619T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JACKSON IA-DUBUQUE IA-JO DAVIESS IL-
223 AM CDT THU JUN 19 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 AM CDT FOR
NORTHWESTERN JO DAVIESS...EASTERN DUBUQUE AND NORTH CENTRAL JACKSON
COUNTIES...

AT 220 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE SLOW MOVING THUNDERSTORMS WITH HEAVY RAINFALL PRODUCING 
FLASH FLOODING OVER PORTIONS OF THE WARNED AREA. RAINFALL AMOUNTS 
OVER 2 INCHES HAS BEEN REPORTED AT THE DUBUQUE AIRPORT AND RADAR 
ESTIMATES AS HIGH AS 3 TO 4 INCHES WERE INDICATED OVER PORTIONS OF 
EASTERN DUBUQUE COUNTY...EXTREME NORTHERN JACKSON COUNTY AND 
NORTHWEST JO DAVIESS COUNTY. AT 136 AM...LAW ENFORCEMENT OFFICIALS 
REPORTED FLASH FLOODING ON CATFISH CREEK SOUTHWEST OF DUBUQUE. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SHERRILL...
SAGEVILLE...RICKARDSVILLE...DURANGO AND BALLTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PLEASE REPORT ANY FLOODING OR DAMAGE TO YOUR LOCAL LAW ENFORCEMENT
AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4263 9070 4251 9063 4251 9038 4233 9025
      4230 9057 4229 9086 4265 9098 4265 9091
      4267 9081

$$

SHEETS

095 
WGUS73 KDVN 191003
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
503 AM CDT THU JUN 19 2014

IAC061-097-ILC085-191045-
/O.CON.KDVN.FF.W.0004.000000T0000Z-140619T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JACKSON IA-DUBUQUE IA-JO DAVIESS IL-
503 AM CDT THU JUN 19 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 AM CDT FOR
NORTHWESTERN JO DAVIESS...EASTERN DUBUQUE AND NORTH CENTRAL JACKSON
COUNTIES...

AT 448 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SLOW MOVING THUNDERSTORMS WITH HEAVY RAINFALL CONTINUING OVER 
NORTHEAST IOWA AND FAR NORTHWEST ILLINOIS. RADAR ESTIMATES INDICATED 
RAINFALL AMOUNTS IN THE RANGE OF 2 TO 5 INCHES HAS OCCURRED SINCE 
LAST EVENING. NEARLY 3 INCHES OF RAIN HAS BEEN MEASURED AT THE 
DUBUQUE AIRPORT. 

AT 430 AM CDT...LAW ENFORCEMENT OFFICIALS REPORTED STREET FLOODING 
AND ROAD CLOSURES IN DUBUQUE AND ALSO FLOODING ALONG THE LITTLE 
MAQUOKETA RIVER NORTH OF DUBUQUE.

SEVERAL MORE ROUNDS OF THUNDERSTORMS WITH HEAVY RAIN AT TIMES WILL 
CONTINUE THROUGH 6 AM AND AN ADDITIONAL ONE INCH OR MORE OF RAIN IS 
POSSIBLE. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO DUBUQUE...
SHERRILL...SAGEVILLE...RICKARDSVILLE...DURANGO...BALLTOWN AND ASBURY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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...STREETS...UNDERPASSES AND LOW
LYING URBAN AREAS IS LIKELY.

&&

LAT...LON 4263 9070 4251 9063 4251 9038 4233 9025
      4230 9057 4229 9086 4265 9098 4265 9091
      4267 9081

$$

SHEETS

767 
WGUS73 KDVN 191049
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
549 AM CDT THU JUN 19 2014

IAC061-097-ILC085-191055-
/O.EXP.KDVN.FF.W.0004.000000T0000Z-140619T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JACKSON IA-DUBUQUE IA-JO DAVIESS IL-
549 AM CDT THU JUN 19 2014

...THE FLASH FLOOD WARNING HAS EXPIRED FOR NORTHWESTERN JO DAVIESS...
EASTERN DUBUQUE AND NORTH CENTRAL JACKSON COUNTIES...

THUNDERSTORMS WITH HEAVY RAIN HAVE MOVED OUT OF THE AREA AND 
ADDITIONAL FLASH FLOODING IS NOT EXPECTED. SCATTERED SHOWERS AND 
THUNDERSTORM WILL CONTINUE OVER THE AREA THROUGH MID MORNING WITH 
ADDITIONAL RAINFALL AMOUNTS BELOW A HALF INCH POSSIBLE. 

LAT...LON 4263 9070 4251 9063 4251 9038 4233 9025
      4230 9057 4229 9086 4265 9098 4265 9091
      4267 9081

$$

SHEETS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 1:56 AM CDT	Flash Flood Watch	DVN	Benton, Buchanan, Clinton, Delaware, Dubuque, Jackson and 2 more	19 hr
Jun 19, 11:13 AM CDT	River Flood Warning	DVN	Iowa, Johnson	27 days
Jun 19, 12:30 PM CDT	River Flood Warning	DVN	Dubuque, Jackson	23 days
Jun 19, 12:30 PM CDT	River Flood Warning	DVN	Clinton, Scott	25 days
Jun 19, 12:30 PM CDT	River Flood Warning	DVN	Muscatine, Scott	27 days
Jun 19, 12:30 PM CDT	River Flood Warning	DVN	Des Moines, Louisa	30 days
Jun 19, 12:30 PM CDT	River Flood Warning	DVN	Des Moines	31 days
Jun 19, 12:30 PM CDT	River Flood Warning	DVN	Des Moines, Lee	32 days
Jun 19, 1:15 PM CDT	Special Weather Statement	DVN	Benton, Iowa, Keokuk	60 min
Jun 19, 2:04 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Cedar, Iowa, Johnson, Jones, Linn	41 min
Jun 19, 2:27 PM CDT	Flash Flood Warning	DVN	Benton, Buchanan, Delaware, Iowa, Linn	6 hr
Jun 19, 3:06 PM CDT	Special Weather Statement	DVN	Cedar, Muscatine	54 min
Jun 19, 3:37 PM CDT	Flash Flood Warning	DVN	Dubuque, Jackson, Jones	6 hr
Jun 19, 3:48 PM CDT	Special Weather Statement	DVN	Dubuque	57 min
Jun 19, 4:16 PM CDT	Special Weather Statement	DVN	Des Moines	59 min
Jun 19, 4:28 PM CDT	Special Weather Statement	DVN	Clinton, Jackson, Scott	62 min
Jun 18, 10:23 PM CDT	Flash Flood Warning	DVN	Bureau	6 hr
Jun 19, 3:10 AM CDT	Flash Flood Warning	DVN	Carroll, Jo Daviess, Whiteside	4 hr
Jun 19, 4:48 PM CDT	Flash Flood Warning	DVN	Carroll, Jo Daviess, Stephenson, Whiteside	6 hr
Jun 19, 5:18 PM CDT	Special Weather Statement	DVN	Carroll, Stephenson	57 min
Jun 19, 5:45 PM CDT	Special Weather Statement	DVN	Whiteside	60 min

Nearby

Flash Flood Warnings in Iowa, 2014 Flash Flood Warnings in Illinois, 2014 Every 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.