Alert archive / Illinois / Flash Flood Warnings in 2014

Flash Flood Warning 12, NWS Quad Cities, IA

June 29, 2014Carroll County, Rock Island County, Whiteside County, Illinois; Cedar County, Clinton County, Scott County, Iowa

NWS Quad Cities, IA issued this flash flood warning at Jun 29, 2014, 11:51 PM CDT for Carroll County, Rock Island County, Whiteside County, Illinois; Cedar County, Clinton County, Scott 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 29, 2014, 11:51 PM CDT (04:51 UTC)
Expired: Jun 30, 2014, 5:45 AM CDT
In force: 6 hr
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: None

Counties Cedar County, IA, Clinton County, IA, Scott County, IA, Carroll County, IL, Rock Island County, IL, Whiteside County, IL

The radar

The Quad Cities radar (KDVN), 32 km from the middle of the area, began a volume at 04:53 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 30, 12:26 AM CDT	HEAVY RAIN 3.25	Wnw Stanwood, IA	RAIN FELL IN 1 HOUR AND 15 MINUTES. ALSO REPORTS FLASH FLOODING.
Jun 30, 12:30 AM CDT	FLASH FLOOD	Lowden, IA	STREET WASHOUTS IN TOWN. BASEMENTS FLOODED.
Jun 30, 12:34 AM CDT	FLASH FLOOD	West Branch, IA	BASEMENTS AND RAODS FLOODED IN WEST BRANCH WITH WIDESPREAD FLASH FLOODING THROUGHOUT THE COUNTY.
Jun 30, 12:55 AM CDT	HEAVY RAIN 3.05	Lowden, IA
Jun 30, 12:55 AM CDT	HEAVY RAIN 3.05	Lowden, IA
Jun 30, 1:05 AM CDT	HEAVY RAIN 1	1 Ssw Cordova, IL	40 MINUTES TOTAL

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, 4.9 hours before the alert went out and 27 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: 1816 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 1110 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 5.6

Open this sounding in Storm Lab

The text

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

137 
WGUS53 KDVN 300451
FFWDVN
IAC031-045-163-ILC015-161-195-301045-
/O.NEW.KDVN.FF.W.0012.140630T0451Z-140630T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1151 PM CDT SUN JUN 29 2014

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CEDAR COUNTY IN EAST CENTRAL IOWA...
  THIS INCLUDES THE CITIES OF...WEST BRANCH...TIPTON...STANWOOD...
  MECHANICSVILLE...
  CLINTON COUNTY IN EAST CENTRAL IOWA...
  THIS INCLUDES THE CITY OF CLINTON...
  NORTHERN SCOTT COUNTY IN EAST CENTRAL IOWA...
  SOUTHERN CARROLL COUNTY IN NORTHWEST ILLINOIS...
  NORTHEASTERN ROCK ISLAND COUNTY IN NORTHWEST ILLINOIS...
  WHITESIDE COUNTY IN NORTHWEST ILLINOIS...
  THIS INCLUDES THE CITIES OF...STERLING...ROCK FALLS...MORRISON...

* UNTIL 545 AM CDT

* AT 1148 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
FLASH FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA. RAINFALL 
AMOUNTS OF 2 TO 4 INCHES IN A SHORT TIME CAN BE EXPECTED.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO COLETA...
  MILLEDGEVILLE...FAIRHAVEN...LOWDEN...CLARENCE...TORONTO AND LOST
  NATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

FLASH FLOODING IS LIKELY ON AREA STREAMS AND CREEKS.

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

&&

LAT...LON 4172 8963 4167 9022 4165 9032 4167 9034
      4160 9137 4195 9136 4194 9090 4200 9089
      4198 8968 4194 8968 4193 8962

$$

HAASE

2 follow-up statements

037 
WGUS73 KDVN 300537
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1237 AM CDT MON JUN 30 2014

IAC031-045-163-ILC015-161-195-301045-
/O.CON.KDVN.FF.W.0012.000000T0000Z-140630T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTT IA-CEDAR IA-CLINTON IA-ROCK ISLAND IL-WHITESIDE IL-CARROLL IL-
1237 AM CDT MON JUN 30 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 AM CDT FOR
SOUTHERN CARROLL...WHITESIDE...NORTHEASTERN ROCK ISLAND...CLINTON...
CEDAR AND NORTHERN SCOTT COUNTIES...

AT 1234 AM CDT...LAW ENFORCEMENT REPORTED FLASH FLOODING ACROSS 
CEDAR COUNTY. ROADS AND BASEMENTS ARE FLOODED ESPECIALLY IN THE 
TIPTON AND WEST BRANCH AREAS. THUNDERSTORMS PRODUCING FLASH FLOODING 
CONTINUED OVER THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GRAND
MOUND...FULTON...EAST CLINTON...COLETA...MILLEDGEVILLE...FAIRHAVEN...
STANWOOD...MECHANICSVILLE...LOWDEN...CLARENCE...WHEATLAND...WELTON...
TORONTO...LOST NATION...CLINTON...CHARLOTTE...CALAMUS AND ANDOVER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 400 AM CDT MONDAY MORNING FOR
EAST CENTRAL IOWA AND NORTHWEST ILLINOIS. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR EASTERN
IOWA AND NORTHWEST ILLINOIS.

&&

LAT...LON 4172 8963 4167 9022 4165 9032 4167 9034
      4160 9137 4195 9136 4194 9090 4200 9089
      4198 8968 4194 8968 4193 8962

$$

HAASE

794 
WGUS73 KDVN 300942
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
442 AM CDT MON JUN 30 2014

IAC031-045-163-ILC015-161-195-300950-
/O.CAN.KDVN.FF.W.0012.000000T0000Z-140630T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTT IA-CEDAR IA-CLINTON IA-ROCK ISLAND IL-WHITESIDE IL-CARROLL IL-
442 AM CDT MON JUN 30 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHERN CARROLL...
WHITESIDE...NORTHEASTERN ROCK ISLAND...CLINTON...CEDAR AND NORTHERN
SCOTT COUNTIES...

RAINFALL HAS ENDED BUT RUNOFF WILL CONTINUE INTO THIS MORNING AND AN 
AREAL FLOOD WARNING HAS BEEN ISSUED UNTIL 1045 AM.

LAT...LON 4172 8963 4167 9022 4165 9032 4167 9034
      4160 9137 4195 9136 4194 9090 4200 9089
      4198 8968 4194 8968 4193 8962

$$

HAASE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 10:08 PM CDT	Severe Thunderstorm Warning	DVN	Jo Daviess	37 min
Jun 29, 10:31 PM CDT	Tornado Warning	DVN	Carroll, Jo Daviess	29 min
Jun 29, 11:10 PM CDT	Flash Flood Warning	DVN	Carroll, Jo Daviess, Stephenson	6 hr
Jun 29, 11:10 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Whiteside	50 min
Jun 29, 11:12 PM CDT	Flash Flood Watch	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	26 hr
Jun 30, 12:30 AM CDT	Severe Thunderstorm Warning	DVN	Carroll, Rock Island, Whiteside	45 min
Jun 30, 1:33 AM CDT	Flash Flood Warning	DVN	Bureau, Henry, Mercer, Putnam, Rock Island, Whiteside	6 hr
Jun 30, 4:34 AM CDT	Areal Flood Warning	DVN	Carroll, Jo Daviess, Stephenson	6 hr
Jun 30, 4:39 AM CDT	Areal Flood Warning	DVN	Carroll, Rock Island, Whiteside	6 hr
Jun 30, 5:03 AM CDT	Areal Flood Warning	DVN	Bureau, Henry, Putnam, Rock Island, Whiteside	6 hr
Jun 30, 6:03 AM CDT	River Flood Warning	DVN	Henry, Rock Island, Whiteside	8 days
Jun 30, 6:03 AM CDT	River Flood Warning	DVN	Henry, Rock Island	8 days
Jun 30, 8:16 AM CDT	Special Weather Statement	DVN	Henderson, Mercer, Warren	59 min
Jun 30, 8:20 AM CDT	Severe Thunderstorm Warning	DVN	Henderson, Warren	40 min
Jun 30, 11:04 AM CDT	River Flood Warning	DVN	Stephenson	8 days
Jun 30, 11:04 AM CDT	River Flood Warning	DVN	Whiteside	7 days
Jun 30, 11:04 AM CDT	River Flood Warning	DVN	Henry	4 days
Jun 30, 3:44 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess, Rock Island, Whiteside	46 min
Jun 30, 4:08 PM CDT	Special Weather Statement	DVN	Carroll, Henry, Jo Daviess, Mercer, Rock Island, Stephenson and 1 more	52 min
Jun 30, 4:35 PM CDT	Flash Flood Warning	DVN	Rock Island	6 hr
Jun 30, 4:40 PM CDT	Special Weather Statement	DVN	Stephenson	50 min
Jun 30, 4:50 PM CDT	Special Weather Statement	DVN	Bureau, Henry	55 min
Jun 30, 5:14 PM CDT	Flash Flood Warning	DVN	Henry	6 hr
Jun 30, 5:22 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	53 min
Jun 29, 8:53 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Linn	67 min
Jun 29, 10:01 PM CDT	Flash Flood Warning	DVN	Benton, Buchanan, Delaware, Dubuque, Jones, Linn	6 hr
Jun 29, 10:53 PM CDT	Flash Flood Warning	DVN	Benton, Jones, Linn	6 hr
Jun 29, 11:15 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Cedar, Iowa, Johnson, Keokuk, Linn and 2 more	45 min
Jun 30, 12:49 AM CDT	River Flood Warning	DVN	Cedar, Johnson, Linn	7 days
Jun 30, 12:49 AM CDT	River Flood Warning	DVN	Lee	4 days
Jun 30, 1:05 AM CDT	River Flood Warning	DVN	Cedar, Jones, Linn	8 days
Jun 30, 2:28 AM CDT	River Flood Warning	DVN	Delaware, Jones	4 days
Jun 30, 2:28 AM CDT	River Flood Warning	DVN	Jackson	5 days
Jun 30, 2:28 AM CDT	River Flood Warning	DVN	Buchanan, Linn	4 days
Jun 30, 3:27 AM CDT	Areal Flood Warning	DVN	Benton, Buchanan, Delaware, Dubuque, Jones, Linn	6 hr
Jun 30, 4:31 AM CDT	Areal Flood Warning	DVN	Benton, Jones, Linn	6 hr
Jun 30, 5:49 AM CDT	River Flood Warning	DVN	Benton, Linn	6 days
Jun 30, 12:05 PM CDT	River Flood Warning	DVN	Johnson, Washington	10 days
Jun 30, 12:05 PM CDT	River Flood Warning	DVN	Johnson, Louisa, Washington	21 days
Jun 30, 1:51 PM CDT	Severe Thunderstorm Warning	DVN	Benton	54 min
Jun 30, 2:14 PM CDT	Severe Thunderstorm Warning	DVN	Iowa	61 min
Jun 30, 2:17 PM CDT	Tornado Warning	DVN	Benton	28 min
Jun 30, 2:21 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan	24 min
Jun 30, 2:27 PM CDT	Severe Thunderstorm Warning	DVN	Keokuk	48 min
Jun 30, 2:38 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa, Linn	37 min
Jun 30, 2:46 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	44 min
Jun 30, 2:53 PM CDT	Severe Thunderstorm Warning	DVN	Johnson	39 min
Jun 30, 2:54 PM CDT	Special Weather Statement	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more	66 min
Jun 30, 2:59 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jackson, Jones, Muscatine, Scott	46 min
Jun 30, 3:13 PM CDT	Flash Flood Warning	DVN	Benton, Cedar, Iowa, Johnson, Jones, Linn	6 hr
Jun 30, 3:18 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque, Jackson	42 min
Jun 30, 3:53 PM CDT	Flash Flood Warning	DVN	Keokuk, Louisa, Muscatine, Washington	6 hr
Jun 30, 6:02 PM CDT	Flash Flood Warning	DVN	Buchanan, Delaware, Dubuque	6 hr

Nearby

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