Alert archive / Iowa / River Flood Warnings in 2018

River Flood Warning 76, NWS Des Moines, IA

September 22, 2018Humboldt County, Iowa

NWS Des Moines, IA issued this river flood warning at Sep 22, 2018, 8:02 PM CDT for Humboldt County, Iowa. It took effect at Sep 23, 2018, 1:00 PM CDT. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Sep 22, 2018, 8:02 PM CDT (01:02 UTC)
In effect from
Sep 23, 2018, 1:00 PM CDT
Expired
Sep 23, 2018, 9:21 PM CDT
In force
8 hr
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Flood severity
Minor

County Humboldt County, IA

The radar

The Des Moines radar (KDMX), 125 km from the middle of the area, began a volume at 01:02 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 river

Written for the forecast point East Fork Des Moines River at Dakota City (DAKI4). The gauge peaked at 19.77 ft at Sep 23, 2018, 11:00 PM CDT.

actionminormoderate1820222409/2309/2409/25
Action stage
18 ft
Minor stage
20 ft
Moderate stage
24 ft
Major stage
28 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05479000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

392 
WGUS43 KDMX 230102
FLWDMX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Des Moines IA
802 PM CDT Sat Sep 22 2018

...The National Weather Service in Des Moines has issued a Flood 
Warning for all or portions of the following rivers in Iowa...East 
Fork Des Moines River...

  Affecting the following counties in Iowa...Humboldt
  
River forecasts include observed precipitation, as well as expected 
precipitation over the next 24 hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you encounter a flooded area, turn around and find an alternate 
route. Turn around, do not drown.

More information--including impact statements and crest 
histories--is available on the Web at...  www.weather.gov/desmoines.
Click on the Rivers and Lakes link.

&&

IAC091-240102-
/O.NEW.KDMX.FL.W.0076.180923T1800Z-180928T0600Z/
/DAKI4.1.ER.180923T1800Z.180925T0000Z.180927T0600Z.NO/
802 PM CDT Sat Sep 22 2018

...Flood Warning in effect until early Thursday morning...

The National Weather Service in Des Moines has issued a
* Flood Warning for
  The East Fork Des Moines River at Dakota City, or From Highway 
  C26...to the Des Moines River.
* Until early Thursday morning.
* At  7:00 PM Saturday the stage was 18.6 feet, or 1.4 feet below 
  Flood Stage.
* Flood Stage is 20.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage Sunday afternoon. Continue rising to
  20.9 feet, or 0.9 feet above Flood Stage, Monday evening. Then 
  begin falling and go below Flood Stage early Thursday morning.
* Impact...At 20.0 feet, Water affects the city park and large 
  amounts of agricultural land. The city of Dakota City is situated 
  on locally high ground and is generally not affected by flooding 
  at this stage.

&&

LAT...LON 4288 9425 4288 9415 4280 9409 4267 9418
      4268 9421 4288 9425             

$$
4 follow-up statements
038 
WGUS83 KDMX 230821
FLSDMX

Flood Statement
National Weather Service Des Moines IA
321 AM CDT Sun Sep 23 2018

...The Flood Warning continues for all or portions of the following 
rivers in Iowa...Des Moines River...West Fork Des Moines River...
East Fork Des Moines River...

  Affecting the following counties in Iowa...Boone...Emmet...
  Hamilton...Humboldt...Kossuth...Palo Alto...Pocahontas...Webster
  
River forecasts include observed precipitation, as well as expected 
precipitation over the next 24 hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you encounter a flooded area, turn around and find an alternate 
route. Turn around, do not drown.

More information--including impact statements and crest 
histories--is available on the Web at...
www.weather.gov/desmoines.
Click on the Rivers and Lakes link.

&&

IAC187-240821-
/O.CON.KDMX.FL.W.0071.000000T0000Z-180930T0000Z/
/FODI4.1.ER.180921T0903Z.180924T0600Z.180929T0000Z.NO/
321 AM CDT Sun Sep 23 2018

...Flood Warning remains in effect until Friday evening...

The Flood Warning continues for
  The Des Moines River at Fort Dodge, or From the municipal power 
  dam...to Lehigh.
* Until Friday evening.
* At  3:00 AM Sunday the stage was 14.1 feet, or 3.6 feet above Flood
  Stage.
* Flood Stage is 10.5 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 14.6 feet, or 4.1 feet above Flood Stage, after 
  midnight tonight. Then begin falling and go below Flood Stage 
  Friday evening.
* Impact...At 14.0 feet, Water affects some access roads along the 
  river in Fort Dodge as well as in Lehigh.

&&

LAT...LON 4242 9421 4265 9424 4265 9416 4232 9393
      4230 9405 4242 9421             

$$

IAC015-079-187-240821-
/O.CON.KDMX.FL.W.0074.000000T0000Z-180927T1536Z/
/STRI4.1.ER.180922T1600Z.180924T1800Z.180926T1536Z.NO/
321 AM CDT Sun Sep 23 2018

...Flood Warning remains in effect until Wednesday morning...

The Flood Warning continues for
  The Des Moines River near Stratford, or From the Boone River...to 
  near the City of Boone.
* Until Wednesday morning.
* At  3:00 AM Sunday the stage was 22.1 feet, or 1.1 feet above Flood
  Stage.
* Flood Stage is 21.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 23.0 feet, or 2.0 feet above Flood Stage, Monday
  afternoon. Then begin falling and go below Flood Stage Wednesday 
  morning.


&&

LAT...LON 4200 9397 4230 9404 4232 9393 4221 9393
      4198 9387 4200 9397             

$$

IAC063-240821-
/O.CON.KDMX.FL.W.0068.000000T0000Z-180929T0600Z/
/ESVI4.1.ER.180920T2011Z.180921T2200Z.180928T0600Z.NO/
321 AM CDT Sun Sep 23 2018

...Flood Warning remains in effect until early Friday morning...

The Flood Warning continues for
  The West Fork Des Moines River at Estherville, or From the 
  Iowa-Minnesota border...to near Wallingford.
* Until early Friday morning.
* At  3:00 AM Sunday the stage was 9.5 feet, or 1.5 feet above Flood 
  Stage.
* Flood Stage is 8.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage early Friday 
  morning.
* Impact...At 7.0 feet, Mike Mickelson Park South of Iowa 9 floods. 
  North Riverside Park North of Iowa 9 floods. Backwater from the 
  river causes School Creek to affect the low areas of Valley Drive.

&&

LAT...LON 4326 9483 4350 9491 4350 9485 4326 9471
      4326 9483                       

$$

IAC147-151-240821-
/O.CON.KDMX.FL.W.0072.000000T0000Z-180925T0600Z/
/EMTI4.1.ER.180922T0830Z.180923T0530Z.180924T0600Z.NO/
321 AM CDT Sun Sep 23 2018

...Flood Warning remains in effect until after midnight tonight...

The Flood Warning continues for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* Until after midnight tonight.
* At  2:15 AM Sunday the stage was 11.3 feet, or 0.3 feet above Flood
  Stage.
* Flood Stage is 11.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage after midnight
  tonight.
* Impact...At 11.0 feet, Iowa 4 is threatened in areas near the river
  overpass. The road to the rendering plant is threatened and the 
  road to the sanitary landfill area is closed.

&&

LAT...LON 4309 9475 4326 9483 4326 9471 4294 9444
      4279 9444 4309 9475             

$$

IAC091-240821-
/O.CON.KDMX.FL.W.0070.000000T0000Z-180929T0000Z/
/HBTI4.1.ER.180921T1109Z.180923T0400Z.180928T0000Z.NO/
321 AM CDT Sun Sep 23 2018

...Flood Warning remains in effect until Thursday evening...

The Flood Warning continues for
  The West Fork Des Moines River at Humboldt, or From Joe Reasoner 
  Dam...to the East Fork Des Moines River.
* Until Thursday evening.
* At  3:15 AM Sunday the stage was 12.7 feet, or 2.7 feet above Flood
  Stage.
* Flood Stage is 10.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 12.7 feet, or 2.7 feet above Flood Stage, this 
  morning. Then begin falling and go below Flood Stage Thursday 
  evening.
* Impact...At 12.0 feet, The Murray bridge is closed east of Rutland.
  Groundwater threatens the pump room at the water plant.

&&

LAT...LON 4265 9416 4265 9424 4272 9428 4274 9423
      4272 9420 4265 9416             

$$

IAC091-109-240821-
/O.CON.KDMX.FL.W.0073.000000T0000Z-180929T0000Z/
/AGNI4.2.ER.180921T1200Z.180923T0145Z.180928T0000Z.NO/
321 AM CDT Sun Sep 23 2018

...Flood Warning remains in effect until Thursday evening...

The Flood Warning continues for
  The East Fork Des Moines River near Algona, or From Buffalo Creek 
  near Burt...to Lotts Creek near Livermore.
* Until Thursday evening.
* At  3:15 AM Sunday the stage was 19.1 feet, or 2.1 feet above Flood
  Stage.
* Flood Stage is 17.0 feet.
* Moderate flooding is occurring and is forecast to continue.
* Forecast...rise to 19.1 feet, or 2.1 feet above Flood Stage, this 
  morning. Then begin falling and go below Flood Stage Thursday 
  evening.
* Impact...At 19.0 feet, Water affects US 169 south of Algona. US 169
  near Saint Joseph will be cut off. Sections of US 18 east of US 
  169 are threatened.

&&

LAT...LON 4288 9415 4288 9425 4307 9428 4320 9422
      4320 9414 4288 9415             

$$

IAC091-240821-
/O.CON.KDMX.FL.W.0076.180923T1800Z-180928T0600Z/
/DAKI4.1.ER.180923T1800Z.180925T0000Z.180927T0600Z.NO/
321 AM CDT Sun Sep 23 2018

...Flood Warning remains in effect until early Thursday morning...

The Flood Warning continues for
  The East Fork Des Moines River at Dakota City, or From Highway 
  C26...to the Des Moines River.
* Until early Thursday morning.
* At  3:00 AM Sunday the stage was 19.0 feet, or 1.0 feet below Flood
  Stage.
* Flood Stage is 20.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage this afternoon. Continue rising to 
  20.9 feet, or 0.9 feet above Flood Stage, Monday evening. Then 
  begin falling and go below Flood Stage early Thursday morning.
* Impact...At 20.0 feet, Water affects the city park and large 
  amounts of agricultural land. The city of Dakota City is situated 
  on locally high ground and is generally not affected by flooding 
  at this stage.

&&

LAT...LON 4288 9425 4288 9415 4280 9409 4267 9418
      4268 9421 4288 9425             

$$
084 
WGUS83 KDMX 231516
FLSDMX

Flood Statement
National Weather Service Des Moines IA
1016 AM CDT Sun Sep 23 2018

...The Flood Warning has been extended for all or portions of the 
following rivers in Iowa...Iowa River...Cedar River...Shell Rock 
River...Des Moines River...West Fork Des Moines River...East Fork 
Des Moines River...

  Affecting the following counties in Iowa...Black Hawk...Boone...
  Bremer...Butler...Emmet...Hamilton...Humboldt...Kossuth...Palo 
  Alto...Pocahontas...Webster...Wright
  
...The Flood Warning continues for all or portions of the following 
rivers in Iowa...West Fork Des Moines River...Boone River...

  Affecting the following counties in Iowa...Hamilton...Humboldt...
  Webster
  
River forecasts include observed precipitation, as well as expected 
precipitation over the next 24 hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you encounter a flooded area, turn around and find an alternate 
route. Turn around, do not drown.

More information--including impact statements and crest 
histories--is available on the Web at...  www.weather.gov/desmoines.
Click on the Rivers and Lakes link.

&&

IAC197-241515-
/O.EXT.KDMX.FL.W.0069.000000T0000Z-180927T0300Z/
/ROWI4.1.ER.180921T2220Z.180923T0430Z.180926T0300Z.NR/
1016 AM CDT Sun Sep 23 2018

...Flood Warning now in effect until late Tuesday evening...

The Flood Warning continues for
  The Iowa River near Rowan, or From Belmond...to Dows.
* Until late Tuesday evening.
* At  9:00 AM Sunday the stage was 14.3 feet, or 1.8 feet above Flood
  Stage.
* Flood Stage is 12.5 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage late Tuesday 
  evening.
* Impact...At 14.5 feet, 190th St. just west of Reed Ave is 
  impassible.  The road is covered by over 300 yards of water. Water
  is over much of the bridge.  Water is also over Highway 69 
  between 200th and 205th street west of Rowan.

&&

LAT...LON 4275 9367 4284 9368 4287 9358 4266 9346
      4263 9352 4275 9367             

$$

IAC013-241515-
/O.EXT.KDMX.FL.W.0064.000000T0000Z-180929T0000Z/
/CEDI4.3.ER.180920T2200Z.180923T1445Z.180928T0000Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning now in effect until Thursday evening...

The Flood Warning continues for
  The Cedar River at Cedar Falls, or From the West Fork Cedar 
  River...to the Cedar Falls-Waterloo city limits.
* Until Thursday evening.
* At  9:45 AM Sunday the stage was 95.4 feet, or 7.4 feet above Flood
  Stage.
* Flood Stage is 88.0 feet.
* Major flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage Thursday 
  evening.
* Impact...At 94.9 feet, Water covers Fitkin Road.

&&

LAT...LON 4256 9238 4251 9245 4258 9255 4262 9255
      4262 9241 4256 9238             

$$

IAC013-241515-
/O.EXT.KDMX.FL.W.0065.000000T0000Z-180927T1000Z/
/ALOI4.1.ER.180921T1722Z.180923T1500Z.180926T1000Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning now in effect until Wednesday morning...

The Flood Warning continues for
  The Cedar River at Waterloo, or From the Waterloo-Cedar Falls city 
  limits...to Spring Creek near La Porte City.
* Until Wednesday morning.
* At 10:00 AM Sunday the stage was 18.8 feet, or 5.8 feet above Flood
  Stage.
* Flood Stage is 13.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage Wednesday 
  morning.
* Impact...At 18.0 feet, The access road to wastewater treatment 
  plant is closed.

&&

LAT...LON 4256 9238 4238 9207 4230 9207 4230 9222
      4251 9245 4256 9238             

$$

IAC013-017-023-241515-
/O.EXT.KDMX.FL.W.0066.000000T0000Z-180925T1000Z/
/SHRI4.1.ER.180921T0345Z.180922T1715Z.180924T1000Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning now in effect until Monday morning...

The Flood Warning continues for
  The Shell Rock River at Shell Rock, or From Flood Creek near 
  Clarksville...to the Cedar River.
* Until Monday morning.
* At  9:45 AM Sunday the stage was 14.6 feet, or 1.1 feet above Flood
  Stage.
* Flood Stage is 13.5 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage Monday 
  morning.
* Impact...At 14.0 feet, Flooding occurs in Shell Rock primarily in 
  residential yards.

&&

LAT...LON 4265 9249 4265 9255 4279 9272 4284 9269
      4269 9249 4265 9249             

$$

IAC187-241515-
/O.EXT.KDMX.FL.W.0071.000000T0000Z-180929T1800Z/
/FODI4.1.ER.180921T0903Z.180924T0600Z.180928T1800Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning now in effect until Friday afternoon...

The Flood Warning continues for
  The Des Moines River at Fort Dodge, or From the municipal power 
  dam...to Lehigh.
* Until Friday afternoon.
* At  9:00 AM Sunday the stage was 14.2 feet, or 3.7 feet above Flood
  Stage.
* Flood Stage is 10.5 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 14.4 feet, or 3.9 feet above Flood Stage, after 
  midnight tonight. Then begin falling and go below Flood Stage 
  Friday afternoon.
* Impact...At 14.0 feet, Water affects some access roads along the 
  river in Fort Dodge as well as in Lehigh.

&&

LAT...LON 4242 9421 4265 9424 4265 9416 4232 9393
      4230 9405 4242 9421             

$$

IAC015-079-187-241515-
/O.EXT.KDMX.FL.W.0074.000000T0000Z-180927T1312Z/
/STRI4.1.ER.180922T1600Z.180924T1800Z.180926T1312Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning now in effect until Wednesday morning...

The Flood Warning continues for
  The Des Moines River near Stratford, or From the Boone River...to 
  near the City of Boone.
* Until Wednesday morning.
* At  9:00 AM Sunday the stage was 22.4 feet, or 1.4 feet above Flood
  Stage.
* Flood Stage is 21.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 23.6 feet, or 2.6 feet above Flood Stage, Monday
  afternoon. Then begin falling and go below Flood Stage Wednesday 
  morning.


&&

LAT...LON 4200 9397 4230 9404 4232 9393 4221 9393
      4198 9387 4200 9397             

$$

IAC063-241515-
/O.EXT.KDMX.FL.W.0068.000000T0000Z-180929T1200Z/
/ESVI4.1.ER.180920T2011Z.180921T2200Z.180928T1200Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning now in effect until Friday morning...

The Flood Warning continues for
  The West Fork Des Moines River at Estherville, or From the 
  Iowa-Minnesota border...to near Wallingford.
* Until Friday morning.
* At  9:00 AM Sunday the stage was 9.4 feet, or 1.4 feet above Flood 
  Stage.
* Flood Stage is 8.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage Friday 
  morning.
* Impact...At 7.0 feet, Mike Mickelson Park South of Iowa 9 floods. 
  North Riverside Park North of Iowa 9 floods. Backwater from the 
  river causes School Creek to affect the low areas of Valley Drive.

&&

LAT...LON 4326 9483 4350 9491 4350 9485 4326 9471
      4326 9483                       

$$

IAC147-151-241515-
/O.EXT.KDMX.FL.W.0072.000000T0000Z-180925T0900Z/
/EMTI4.1.ER.180922T0830Z.180923T1800Z.180924T0900Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning now in effect until early Monday morning...

The Flood Warning continues for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* Until early Monday morning.
* At  9:15 AM Sunday the stage was 11.2 feet, or 0.2 feet above Flood
  Stage.
* Flood Stage is 11.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 11.3 feet, or 0.3 feet above Flood Stage, this 
  afternoon. Then begin falling and go below Flood Stage early 
  Monday morning.
* Impact...At 11.0 feet, Iowa 4 is threatened in areas near the river
  overpass. The road to the rendering plant is threatened and the 
  road to the sanitary landfill area is closed.

&&

LAT...LON 4309 9475 4326 9483 4326 9471 4294 9444
      4279 9444 4309 9475             

$$

IAC091-241515-
/O.CON.KDMX.FL.W.0070.000000T0000Z-180929T0000Z/
/HBTI4.1.ER.180921T1109Z.180923T0400Z.180928T0000Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning remains in effect until Thursday evening...

The Flood Warning continues for
  The West Fork Des Moines River at Humboldt, or From Joe Reasoner 
  Dam...to the East Fork Des Moines River.
* Until Thursday evening.
* At  9:15 AM Sunday the stage was 12.6 feet, or 2.6 feet above Flood
  Stage.
* Flood Stage is 10.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 12.7 feet, or 2.7 feet above Flood Stage, this 
  afternoon. Then begin falling and go below Flood Stage Thursday 
  evening.
* Impact...At 12.0 feet, The Murray bridge is closed east of Rutland.
  Groundwater threatens the pump room at the water plant.

&&

LAT...LON 4265 9416 4265 9424 4272 9428 4274 9423
      4272 9420 4265 9416             

$$

IAC091-109-241515-
/O.EXT.KDMX.FL.W.0073.000000T0000Z-180928T1200Z/
/AGNI4.2.ER.180921T1200Z.180923T0145Z.180927T1200Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning now in effect until Thursday morning...

The Flood Warning continues for
  The East Fork Des Moines River near Algona, or From Buffalo Creek 
  near Burt...to Lotts Creek near Livermore.
* Until Thursday morning.
* At  9:15 AM Sunday the stage was 18.9 feet, or 1.9 feet above Flood
  Stage.
* Flood Stage is 17.0 feet.
* Moderate flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage Thursday 
  morning.
* Impact...At 19.0 feet, Water affects US 169 south of Algona. US 169
  near Saint Joseph will be cut off. Sections of US 18 east of US 
  169 are threatened.

&&

LAT...LON 4288 9415 4288 9425 4307 9428 4320 9422
      4320 9414 4288 9415             

$$

IAC091-241515-
/O.EXT.KDMX.FL.W.0076.180924T0400Z-180927T0600Z/
/DAKI4.1.ER.180924T0400Z.180925T0000Z.180926T0600Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning now in effect until early Wednesday morning...

The Flood Warning continues for
  The East Fork Des Moines River at Dakota City, or From Highway 
  C26...to the Des Moines River.
* Until early Wednesday morning.
* At  9:00 AM Sunday the stage was 19.1 feet, or 0.9 feet below Flood
  Stage.
* Flood Stage is 20.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage late this evening. Continue rising 
  to 20.7 feet, or 0.7 feet above Flood Stage, Monday evening. Then 
  begin falling and go below Flood Stage early Wednesday morning.
* Impact...At 20.0 feet, Water affects the city park and large 
  amounts of agricultural land. The city of Dakota City is situated 
  on locally high ground and is generally not affected by flooding 
  at this stage.

&&

LAT...LON 4288 9425 4288 9415 4280 9409 4267 9418
      4268 9421 4288 9425             

$$

IAC079-187-241515-
/O.CON.KDMX.FL.W.0077.000000T0000Z-180924T1942Z/
/WBCI4.1.ER.180923T1045Z.180923T1330Z.180923T1942Z.NO/
1016 AM CDT Sun Sep 23 2018

...Flood Warning remains in effect until this afternoon...

The Flood Warning continues for
  The Boone River near Webster City, or From Webster City...to the 
  Des Moines River.
* Until this afternoon.
* At  9:00 AM Sunday the stage was 14.2 feet, or 0.2 feet above Flood
  Stage.
* Flood Stage is 14.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage this 
  afternoon.
* Impact...At 14.0 feet, Water affects some residential areas near 
  the river in Webster City.

&&

LAT...LON 4230 9393 4233 9393 4248 9383 4248 9377
      4234 9380 4230 9393             

$$
453 
WGUS83 KDMX 232023
FLSDMX

Flood Statement
National Weather Service Des Moines IA
323 PM CDT Sun Sep 23 2018

...The Flood Warning has been extended for all or portions of the 
following rivers in Iowa...West Fork Des Moines River...East Fork 
Des Moines River...Boone River...

  Affecting the following counties in Iowa...Hamilton...Humboldt...
  Palo Alto...Pocahontas...Webster
  
...The Flood Warning continues for all or portions of the following 
rivers in Iowa...Des Moines River...West Fork Des Moines River...
East Fork Des Moines River...

  Affecting the following counties in Iowa...Boone...Emmet...
  Hamilton...Humboldt...Kossuth...Webster
  
River forecasts include observed precipitation, as well as expected 
precipitation over the next 24 hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you encounter a flooded area, turn around and find an alternate 
route. Turn around, do not drown.

More information--including impact statements and crest 
histories--is available on the Web at...  www.weather.gov/desmoines.
Click on the Rivers and Lakes link.

&&

IAC187-242023-
/O.CON.KDMX.FL.W.0071.000000T0000Z-180929T1800Z/
/FODI4.1.ER.180921T0903Z.180924T0600Z.180928T1800Z.NO/
323 PM CDT Sun Sep 23 2018

...Flood Warning remains in effect until Friday afternoon...

The Flood Warning continues for
  The Des Moines River at Fort Dodge, or From the municipal power 
  dam...to Lehigh.
* Until Friday afternoon.
* At  3:00 PM Sunday the stage was 14.2 feet, or 3.7 feet above Flood
  Stage.
* Flood Stage is 10.5 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 14.4 feet, or 3.9 feet above Flood Stage, after 
  midnight tonight. Then begin falling and go below Flood Stage 
  Friday afternoon.
* Impact...At 14.0 feet, Water affects some access roads along the 
  river in Fort Dodge as well as in Lehigh.

&&

LAT...LON 4242 9421 4265 9424 4265 9416 4232 9393
      4230 9405 4242 9421             

$$

IAC015-079-187-242023-
/O.CON.KDMX.FL.W.0074.000000T0000Z-180927T1312Z/
/STRI4.1.ER.180922T1600Z.180924T1800Z.180926T1312Z.NO/
323 PM CDT Sun Sep 23 2018

...Flood Warning remains in effect until Wednesday morning...

The Flood Warning continues for
  The Des Moines River near Stratford, or From the Boone River...to 
  near the City of Boone.
* Until Wednesday morning.
* At  3:00 PM Sunday the stage was 22.6 feet, or 1.6 feet above Flood
  Stage.
* Flood Stage is 21.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 23.6 feet, or 2.6 feet above Flood Stage, Monday
  afternoon. Then begin falling and go below Flood Stage Wednesday 
  morning.


&&

LAT...LON 4200 9397 4230 9404 4232 9393 4221 9393
      4198 9387 4200 9397             

$$

IAC063-242023-
/O.CON.KDMX.FL.W.0068.000000T0000Z-180929T1200Z/
/ESVI4.1.ER.180920T2011Z.180921T2200Z.180928T1200Z.NO/
323 PM CDT Sun Sep 23 2018

...Flood Warning remains in effect until Friday morning...

The Flood Warning continues for
  The West Fork Des Moines River at Estherville, or From the 
  Iowa-Minnesota border...to near Wallingford.
* Until Friday morning.
* At  3:00 PM Sunday the stage was 9.3 feet, or 1.3 feet above Flood 
  Stage.
* Flood Stage is 8.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage Friday 
  morning.
* Impact...At 7.0 feet, Mike Mickelson Park South of Iowa 9 floods. 
  North Riverside Park North of Iowa 9 floods. Backwater from the 
  river causes School Creek to affect the low areas of Valley Drive.

&&

LAT...LON 4326 9483 4350 9491 4350 9485 4326 9471
      4326 9483                       

$$

IAC147-151-242023-
/O.EXT.KDMX.FL.W.0072.000000T0000Z-180925T0815Z/
/EMTI4.1.ER.180922T0830Z.180923T0930Z.180924T0815Z.NO/
323 PM CDT Sun Sep 23 2018

...Flood Warning now in effect until early Monday morning...

The Flood Warning continues for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* Until early Monday morning.
* At  3:15 PM Sunday the stage was 11.2 feet, or 0.2 feet above Flood
  Stage.
* Flood Stage is 11.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage early Monday 
  morning.
* Impact...At 11.0 feet, Iowa 4 is threatened in areas near the river
  overpass. The road to the rendering plant is threatened and the 
  road to the sanitary landfill area is closed.

&&

LAT...LON 4309 9475 4326 9483 4326 9471 4294 9444
      4279 9444 4309 9475             

$$

IAC091-242023-
/O.CON.KDMX.FL.W.0070.000000T0000Z-180929T0000Z/
/HBTI4.1.ER.180921T1109Z.180923T0400Z.180928T0000Z.NO/
323 PM CDT Sun Sep 23 2018

...Flood Warning remains in effect until Thursday evening...

The Flood Warning continues for
  The West Fork Des Moines River at Humboldt, or From Joe Reasoner 
  Dam...to the East Fork Des Moines River.
* Until Thursday evening.
* At  3:15 PM Sunday the stage was 12.7 feet, or 2.7 feet above Flood
  Stage.
* Flood Stage is 10.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage Thursday 
  evening.
* Impact...At 12.0 feet, The Murray bridge is closed east of Rutland.
  Groundwater threatens the pump room at the water plant.

&&

LAT...LON 4265 9416 4265 9424 4272 9428 4274 9423
      4272 9420 4265 9416             

$$

IAC091-109-242023-
/O.CON.KDMX.FL.W.0073.000000T0000Z-180928T1200Z/
/AGNI4.2.ER.180921T1200Z.180923T0145Z.180927T1200Z.NO/
323 PM CDT Sun Sep 23 2018

...Flood Warning remains in effect until Thursday morning...

The Flood Warning continues for
  The East Fork Des Moines River near Algona, or From Buffalo Creek 
  near Burt...to Lotts Creek near Livermore.
* Until Thursday morning.
* At  3:15 PM Sunday the stage was 18.7 feet, or 1.7 feet above Flood
  Stage.
* Flood Stage is 17.0 feet.
* Moderate flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage Thursday 
  morning.
* Impact...At 18.0 feet, US 169 is threatened near Saint Joseph and 
  may be overtopped south of Algona.

&&

LAT...LON 4288 9415 4288 9425 4307 9428 4320 9422
      4320 9414 4288 9415             

$$

IAC091-242023-
/O.EXT.KDMX.FL.W.0076.180924T0705Z-180927T0600Z/
/DAKI4.1.ER.180924T0705Z.180925T0000Z.180926T0600Z.NO/
323 PM CDT Sun Sep 23 2018

...Flood Warning now in effect until early Wednesday morning...

The Flood Warning continues for
  The East Fork Des Moines River at Dakota City, or From Highway 
  C26...to the Des Moines River.
* Until early Wednesday morning.
* At  3:00 PM Sunday the stage was 19.4 feet, or 0.6 feet below Flood
  Stage.
* Flood Stage is 20.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage early Monday morning. Continue 
  rising to 20.7 feet, or 0.7 feet above Flood Stage, Monday 
  evening. Then begin falling and go below Flood Stage early 
  Wednesday morning.
* Impact...At 20.0 feet, Water affects the city park and large 
  amounts of agricultural land. The city of Dakota City is situated 
  on locally high ground and is generally not affected by flooding 
  at this stage.

&&

LAT...LON 4288 9425 4288 9415 4280 9409 4267 9418
      4268 9421 4288 9425             

$$

IAC079-187-242023-
/O.EXT.KDMX.FL.W.0077.000000T0000Z-180925T0158Z/
/WBCI4.1.ER.180923T1045Z.180923T1830Z.180924T0158Z.NO/
323 PM CDT Sun Sep 23 2018

...Flood Warning now in effect until this evening...

The Flood Warning continues for
  The Boone River near Webster City, or From Webster City...to the 
  Des Moines River.
* Until this evening.
* At  3:00 PM Sunday the stage was 14.3 feet, or 0.3 feet above Flood
  Stage.
* Flood Stage is 14.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...continue falling and go below Flood Stage this evening.
* Impact...At 14.0 feet, Water affects some residential areas near 
  the river in Webster City.

&&

LAT...LON 4230 9393 4233 9393 4248 9383 4248 9377
      4234 9380 4230 9393             

$$
090 
WGUS83 KDMX 240221
FLSDMX

Flood Statement
National Weather Service Des Moines IA
921 PM CDT Sun Sep 23 2018

...The Flood Warning has been cancelled for all or portions of the 
following rivers in Iowa...East Fork Des Moines River...

  Affecting the following counties in Iowa...Humboldt
  
River forecasts include observed precipitation, as well as expected 
precipitation over the next 24 hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you encounter a flooded area, turn around and find an alternate 
route. Turn around, do not drown.

More information--including impact statements and crest 
histories--is available on the Web at...  www.weather.gov/desmoines.
Click on the Rivers and Lakes link.

&&

IAC091-240251-
/O.CAN.KDMX.FL.W.0076.000000T0000Z-180927T0600Z/
/DAKI4.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
921 PM CDT Sun Sep 23 2018

...Flood Warning is cancelled...

The Flood Warning is cancelled for
  The East Fork Des Moines River at Dakota City, or From Highway 
  C26...to the Des Moines River.
* At  9:00 PM Sunday the stage was 19.4 feet, or 0.6 feet below Flood
  Stage.
* Forecast...crest below Flood Stage with a stage of 19.5 feet, or 
  0.5 feet below Flood Stage, after midnight tonight. 


&&

LAT...LON 4288 9425 4288 9415 4280 9409 4267 9418
      4268 9421 4288 9425             

$$

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Des Moines, IA wrote its last area forecast discussion before this river flood warning went out at Sep 22, 6:43 PM CDT, 1 hour 19 minutes earlier.

Area forecast discussion, Sep 22, 6:43 PM CDT, 1 hour 19 minutes before
Area Forecast Discussion
National Weather Service Des Moines IA
643 PM CDT Sat Sep 22 2018

.SHORT TERM.../Tonight through Sunday/
Issued at 336 PM CDT Sat Sep 22 2018

Saturday morning temperatures made it into the upper 30s to mid 40s
across much of the DMX CWA. High pressure passing through Iowa
allowed skies to clear and winds to drop to 5 kts or less. 20z sfc
analysis shows this broad sfc high crossing Lake Michigan into
Michigan. Aloft, the 850mb anticyclonic flow extends southwestward
through southeastern to south-central Iowa. Concurrently height
falls to western/NW Iowa associated with a sfc low slowly coming off
the Rockies in Wyoming heading towards the Dakotas.

Widespread subsidence associated with aforementioned high pressure
has kept Iowa cloud-free today.

Tonight and Tomorrow...
Watching for radiational fog potential. Inhibitor will be winds.
While SE Iowa may be near enough to anticyclonic flow to have
light winds. Height falls start getting into NW/northern Iowa as
the edge of a 20 to 25 kt LLJ overspreads the area. Forecast
soundings from KMCW to KEST to KFOD show unidirectional SW winds
picking up pretty quickly off the deck... thus am thinking fog
should be mitigated across this area. Will focus fog potential to
KLWD to KOTM area for now.

As the sfc low off the Rockies continues to build and propagate
westward, WAA will continue to infiltrate Iowa. At 12z Sat, 850mb
temps were around +10C. By 12z Sun, 850mb temps should be around
+15C. Ultimately, this will support sfc temperatures around 5 to 10
degrees warmer on Sunday than what they were on Saturday. Completely
sunny skies expected for Sunday as well.

.LONG TERM.../Sunday night through Saturday/
Issued at 336 PM CDT Sat Sep 22 2018

All eyes turn to aforementioned coming off the Rockies. The track of
this low looks to be decently northeastward... as the center of the
low should be near the Minnesota/Canada border near 18z Mon. The
past few days have featured an attendant cold front that propagates
through Iowa sometime Monday afternoon/evening through Tuesday
morning. Interestingly, the timing and location of this boundary
looks very similar to this past Thursday's event that produced
widespread severe wx across NW/northern Iowa. Big difference,
however, in the ingredients. The previous event had a huge
anticyclone from 850mb-300mb positioned over Arkansas to help surge
moisture into Iowa via a 50+ LLJ. For this event, the current low
pressure area over eastern Texas should remain in place, effectively
shutting off the Gulf. Both Forecast MUCAPE  and DCAPE values
struggle to reach 1000 J/KG with the boundary. Low-level lapse rates
struggle to even reach 7 C/km... with sunset earlier, this window
will close rapidly. Forecast soundings and other heavy rain
parameters do not support very efficient rain produces. Ultimately,
am thinking isolated thunder/lightning the biggest hazard from this
fropa and do not envision the SPC upgrading beyond a 'marginal risk'.

Interestingly, the past several model runs have trended towards
stalling out the boundary into Tuesday. It may actually turn out
that Tuesday afternoon/evening brings the bigger severe wx threat to
the DMX CWA of this fropa. The 12z Sat GFS is notably the slowest
model output, keeping the boundary from around KLWD to Tama county
or so. The 12z Sat NAM more favors the ECMWF, but all models have
had a slowing trend. Still some time between now and Tuesday, so
lots of fluctuation possible... but the Texas "blocking low" looks
to break down by Tuesday, so there will likely be more juice for any
storms to work with. A 'Slight Risk' for severe wx may be warranted
in SE Iowa... but again, lots of time and not a lot of agreement
with solutions at this time.

Wednesday and Beyond...
CAA fills in behind this boundary as high pressure pushes into
the upper Midwest. The stay of this high pressure in the upper
Midwest looks to be short-lived as long-range models in good
agreement with blasting a shortwave across southern Canada
Thursday. At this time, it appears the Gulf is shut off again for
this shortwave, so severe/heavy rainfall threat initially not
looking impressive. Northern Iowa looks to be impacted by this
wave, and central- southern Iowa may be dry.

Heading into the weekend, a more fall-like pattern emerges with the
Hudson Bay upper low gyre machine being flipped on. Could see
several quick shots of precip. Arctic air is lining up on the
backside of this longwave trough...

&&

.AVIATION.../For the 00Z TAFS through 00Z Sunday evening/
Issued at 642 PM CDT Sat Sep 22 2018

Mostly clear skies and light southeast wind is expected tonight.
Some fog is possible especially over southeast Iowa in vicinity of
KOTM. VFR will prevail on Sunday with south wind being breezy at
times and mostly clear skies.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SHORT TERM...Kotenberg
LONG TERM...Kotenberg
AVIATION...Donavon
Hazardous weather outlook, Sep 22, 3:42 PM CDT, 4 hours 20 minutes before
Hazardous Weather Outlook
National Weather Service Des Moines IA
342 PM CDT Sat Sep 22 2018

IAZ004>007-015>017-023>028-033>039-044>050-231100-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-
342 PM CDT Sat Sep 22 2018

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Tonight

River flood warnings are in effect for portions of the area,
including for moderate flooding at Algona and major flooding at
Cedar Falls. Please refer to the National Weather Service website
for more details, weather.gov/desmoines.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Chances for thunderstorms return to the area late Monday and
Tuesday and again Thursday into Friday. An isolated strong storm
will be possible Monday afternoon and evening. The severe weather
threat is low for Tuesday and beyond.

.SPOTTER INFORMATION STATEMENT...

Spotters will not be needed through at least Monday morning.

IAZ057>062-070>075-081>086-092>097-231100-
Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison-
Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-
Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis-
342 PM CDT Sat Sep 22 2018

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Chances for thunderstorms return to the area late Monday and
Tuesday and again Thursday into Friday. An isolated strong to
severe storm will be possible Tuesday afternoon. The severe
weather threat is low beyond Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotters activation is not expected through Monday.

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 23, 5:19 AM CDTRiver Flood WarningDMXHamilton, Webster34 hr

Nearby

River Flood Warnings in Iowa, 2018Every river flood warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.