Alert archive / Iowa / River Flood Warnings in 2018

River Flood Warning 17, NWS Des Moines, IA

May 12, 2018Palo Alto County, Pocahontas County, Iowa

NWS Des Moines, IA issued this river flood warning at May 12, 2018, 10:44 AM CDT for Palo Alto County, Pocahontas County, Iowa. It took effect at May 13, 2018, 1:00 AM CDT. It was in force for 57 hr.

The area

The outline as issued.

The facts

Issued
May 12, 2018, 10:44 AM CDT (15:44 UTC)
In effect from
May 13, 2018, 1:00 AM CDT
Expired
May 15, 2018, 10:00 AM CDT
In force
57 hr
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Flood severity
Minor

Counties Palo Alto County, IA, Pocahontas County, IA

The radar

The Des Moines radar (KDMX), 168 km from the middle of the area, began a volume at 15:45 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 West Fork Des Moines River at Emmetsburg (EMTI4). The gauge peaked at 11.15 ft at May 13, 2018, 9:00 AM CDT.

actionminormoderate810121405/1205/1305/1405/1505/16
Action stage
9 ft
Minor stage
11 ft
Moderate stage
13 ft
Major stage
15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05476590, 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.

857 
WGUS43 KDMX 121544
FLWDMX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Des Moines IA
1044 AM CDT Sat May 12 2018

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

  Affecting the following counties in Iowa...Palo Alto...Pocahontas
  
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.

&&

IAC147-151-131543-
/O.NEW.KDMX.FL.W.0017.180513T1200Z-180515T1500Z/
/EMTI4.1.ER.180513T1200Z.180514T0000Z.180514T1500Z.NO/
1044 AM CDT Sat May 12 2018

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

The National Weather Service in Des Moines has issued a
* Flood Warning for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* Until Monday morning.
* At 10:15 AM Saturday the stage was 10.7 feet, or 0.3 feet below 
  Flood Stage.
* Flood Stage is 11.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage Sunday morning. Continue rising to 
  11.2 feet, or 0.2 feet above Flood Stage, Sunday evening. Then 
  begin falling and go below Flood Stage 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             

$$
8 follow-up statements
180 
WGUS83 KDMX 122048
FLSDMX

Flood Statement
National Weather Service Des Moines IA
348 PM CDT Sat May 12 2018

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

  Affecting the following counties in Iowa...Emmet...Humboldt...Palo 
  Alto...Pocahontas
  
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.

&&

IAC063-132048-
/O.CON.KDMX.FL.W.0005.000000T0000Z-000000T0000Z/
/ESVI4.1.ER.180414T1945Z.180430T0000Z.000000T0000Z.NO/
348 PM CDT Sat May 12 2018

...Flood Warning remains in effect until further notice...

The Flood Warning continues for
  The West Fork Des Moines River at Estherville, or From the 
  Iowa-Minnesota border...to near Wallingford.
* Until further notice.
* At  3:00 PM Saturday the stage was 10.6 feet, or 2.6 feet above 
  Flood Stage.
* Flood Stage is 8.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...fall to 10.0 feet Sunday morning.
* Impact...At 10.0 feet, There is extensive lowland flooding 
  particularly over the parkland areas near the river.

&&

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

$$

IAC147-151-132048-
/O.CON.KDMX.FL.W.0017.180513T1200Z-180515T1500Z/
/EMTI4.1.ER.180513T1200Z.180514T0000Z.180514T1500Z.NO/
348 PM CDT Sat May 12 2018

...Flood Warning remains in effect until 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 Monday morning.
* At  3:15 PM Saturday the stage was 10.8 feet, or 0.2 feet below 
  Flood Stage.
* Flood Stage is 11.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage Sunday morning. Continue rising to 
  11.2 feet, or 0.2 feet above Flood Stage, Sunday evening. Then 
  begin falling and go below Flood Stage 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             

$$

IAC091-132048-
/O.CON.KDMX.FL.W.0016.180514T0000Z-180517T1200Z/
/HBTI4.1.ER.180514T0000Z.180515T1200Z.180516T1200Z.NO/
348 PM CDT Sat May 12 2018

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

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 Wednesday morning.
* At  3:15 PM Saturday the stage was 9.8 feet, or 0.2 feet below 
  Flood Stage.
* Flood Stage is 10.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage Sunday evening. Continue rising to 
  10.2 feet, or 0.2 feet above Flood Stage, Tuesday morning. Then 
  begin falling and go below Flood Stage Wednesday morning.
* Impact...At 10.0 feet, Water impacts some homes along Country Club 
  Drive. Sandbagging occurs at the water treatment plant.

&&

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

$$
489 
WGUS83 KDMX 130148
FLSDMX

Flood Statement
National Weather Service Des Moines IA
848 PM CDT Sat May 12 2018

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

  Affecting the following counties in Iowa...Emmet...Humboldt...Palo 
  Alto...Pocahontas
  
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.

&&

IAC063-140147-
/O.EXT.KDMX.FL.W.0005.000000T0000Z-180520T0600Z/
/ESVI4.1.ER.180414T1945Z.180430T0000Z.180519T0600Z.NO/
848 PM CDT Sat May 12 2018

...Flood Warning now in effect until early Saturday 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 Saturday morning.
* At  8:00 PM Saturday the stage was 10.4 feet, or 2.4 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 early Saturday
  morning.
* Impact...At 10.0 feet, there is extensive lowland flooding 
  particularly over the parkland areas near the river.

&&

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

$$

IAC147-151-140147-
/O.EXT.KDMX.FL.W.0017.180513T0600Z-180515T2100Z/
/EMTI4.1.ER.180513T0600Z.180514T0000Z.180514T2100Z.NO/
848 PM CDT Sat May 12 2018

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

The Flood Warning continues for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* Until Monday afternoon.
* At  8:15 PM Saturday the stage was 10.9 feet, or 0.1 feet below 
  Flood Stage.
* Flood Stage is 11.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage after midnight tonight. Continue 
  rising to 11.4 feet, or 0.4 feet above Flood Stage, Sunday 
  evening. Then begin falling and go below Flood Stage Monday 
  afternoon.
* Impact...At 11.5 feet, southern portions of the airport field are 
  affected including approaches to the primary runway. Grass 
  airstrips are affected near hangars along the east side of the 
  airfield.

&&

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

$$

IAC091-140147-
/O.EXT.KDMX.FL.W.0016.180513T0600Z-180518T0000Z/
/HBTI4.1.ER.180513T0600Z.180515T0000Z.180517T0000Z.NO/
848 PM CDT Sat May 12 2018

...Flood Warning now in effect until Wednesday 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 Wednesday evening.
* At  8:15 PM Saturday the stage was 9.9 feet, or 0.1 feet below 
  Flood Stage.
* Flood Stage is 10.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage after midnight tonight. Continue 
  rising to 10.3 feet, or 0.3 feet above Flood Stage, Monday 
  evening. Then begin falling and go below Flood Stage Wednesday 
  evening.
* Impact...At 10.0 feet, water impacts some homes along Country Club 
  Drive. Sandbagging occurs at the water treatment plant.

&&

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

$$
814 
WGUS83 KDMX 130653
FLSDMX

Flood Statement
National Weather Service Des Moines IA
153 AM CDT Sun May 13 2018

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

  Affecting the following counties in Iowa...Emmet...Humboldt...Palo 
  Alto...Pocahontas
  
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.

&&

IAC063-140652-
/O.CON.KDMX.FL.W.0005.000000T0000Z-180520T0600Z/
/ESVI4.1.ER.180414T1945Z.180430T0000Z.180519T0600Z.NO/
153 AM CDT Sun May 13 2018

...Flood Warning remains in effect until early Saturday 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 Saturday morning.
* At  1:00 AM Sunday the stage was 10.2 feet, or 2.2 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 Saturday
  morning.
* Impact...At 10.0 feet, There is extensive lowland flooding 
  particularly over the parkland areas near the river.

&&

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

$$

IAC147-151-140652-
/O.CON.KDMX.FL.W.0017.000000T0000Z-180515T2100Z/
/EMTI4.1.ER.180513T0400Z.180514T0000Z.180514T2100Z.NO/
153 AM CDT Sun May 13 2018

...Flood Warning remains in effect until late Monday afternoon...

The Flood Warning continues for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* Until late Monday afternoon.
* At  1:15 AM Sunday the stage was 11.1 feet, or 0.1 feet above Flood
  Stage.
* Flood Stage is 11.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 11.4 feet, or 0.4 feet above Flood Stage, this 
  evening. Then begin falling and go below Flood Stage late Monday 
  afternoon.
* Impact...At 11.5 feet, Southern portions of the airport field are 
  affected including approaches to the primary runway. Grass 
  airstrips are affected near hangars along the east side of the 
  airfield.

&&

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

$$

IAC091-140652-
/O.CON.KDMX.FL.W.0016.000000T0000Z-180518T0000Z/
/HBTI4.1.ER.180513T0549Z.180515T0000Z.180517T0000Z.NO/
153 AM CDT Sun May 13 2018

...Flood Warning remains in effect until Wednesday 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 Wednesday evening.
* At  1:15 AM Sunday the stage was 10.1 feet, or 0.1 feet above Flood
  Stage.
* Flood Stage is 10.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 10.3 feet, or 0.3 feet above Flood Stage, Monday
  evening. Then begin falling and go below Flood Stage Wednesday 
  evening.
* Impact...At 10.0 feet, Water impacts some homes along Country Club 
  Drive. Sandbagging occurs at the water treatment plant.

&&

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

$$

KLP
646 
WGUS83 KDMX 131224
FLSDMX

Flood Statement
National Weather Service Des Moines IA
723 AM CDT Sun May 13 2018

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

  Affecting the following counties in Iowa...Emmet...Humboldt...Palo 
  Alto...Pocahontas
  
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.

&&

IAC063-141223-
/O.CON.KDMX.FL.W.0005.000000T0000Z-180520T0600Z/
/ESVI4.1.ER.180414T1945Z.180430T0000Z.180519T0600Z.NO/
723 AM CDT Sun May 13 2018

...Flood Warning remains in effect until early Saturday 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 Saturday morning.
* At  7:00 AM Sunday the stage was 10.1 feet, or 2.1 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 Saturday
  morning.
* Impact...At 10.0 feet, There is extensive lowland flooding 
  particularly over the parkland areas near the river.

&&

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

$$

IAC147-151-141223-
/O.CON.KDMX.FL.W.0017.000000T0000Z-180515T2100Z/
/EMTI4.1.ER.180513T0400Z.180514T0000Z.180514T2100Z.NO/
723 AM CDT Sun May 13 2018

...Flood Warning remains in effect until late Monday afternoon...

The Flood Warning continues for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* Until late Monday afternoon.
* At  7:15 AM Sunday the stage was 11.1 feet, or 0.1 feet above Flood
  Stage.
* Flood Stage is 11.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 11.4 feet, or 0.4 feet above Flood Stage, this 
  evening. Then begin falling and go below Flood Stage late Monday 
  afternoon.
* Impact...At 11.5 feet, Southern portions of the airport field are 
  affected including approaches to the primary runway. Grass 
  airstrips are affected near hangars along the east side of the 
  airfield.

&&

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

$$

IAC091-141223-
/O.CON.KDMX.FL.W.0016.000000T0000Z-180518T0000Z/
/HBTI4.1.ER.180513T0549Z.180515T0000Z.180517T0000Z.NO/
723 AM CDT Sun May 13 2018

...Flood Warning remains in effect until Wednesday 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 Wednesday evening.
* At  7:15 AM Sunday the stage was 10.0 feet, or 0.0 feet above Flood
  Stage.
* Flood Stage is 10.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 10.3 feet, or 0.3 feet above Flood Stage, Monday
  evening. Then begin falling and go below Flood Stage Wednesday 
  evening.
* Impact...At 10.0 feet, Water impacts some homes along Country Club 
  Drive. Sandbagging occurs at the water treatment plant.

&&

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

$$
933 
WGUS83 KDMX 131531
FLSDMX

Flood Statement
National Weather Service Des Moines IA
1030 AM CDT Sun May 13 2018

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

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

  Affecting the following counties in Iowa...Emmet...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.

&&

IAC063-141529-
/O.CON.KDMX.FL.W.0005.000000T0000Z-180520T0600Z/
/ESVI4.1.ER.180414T1945Z.180430T0000Z.180519T0600Z.NO/
1030 AM CDT Sun May 13 2018

...Flood Warning remains in effect until early Saturday 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 Saturday morning.
* At 10:00 AM Sunday the stage was 10.0 feet, or 2.0 feet above Flood
  Stage.
* Flood Stage is 8.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 10.0 feet, or 2.0 feet above Flood Stage, this 
  afternoon. Then begin falling and go below Flood Stage early 
  Saturday morning.
* Impact...At 10.0 feet, There is extensive lowland flooding 
  particularly over the parkland areas near the river.

&&

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

$$

IAC147-151-141529-
/O.EXT.KDMX.FL.W.0017.000000T0000Z-180515T2000Z/
/EMTI4.1.ER.180513T0400Z.180514T0000Z.180514T2000Z.NO/
1030 AM CDT Sun May 13 2018

...Flood Warning now in effect until late Monday afternoon...

The Flood Warning continues for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* Until late Monday afternoon.
* At 10:15 AM Sunday the stage was 11.1 feet, or 0.1 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 
  evening. Then begin falling and go below Flood Stage late Monday 
  afternoon.
* 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             

$$

IAC091-141529-
/O.CON.KDMX.FL.W.0016.000000T0000Z-180518T0000Z/
/HBTI4.1.ER.180513T0549Z.180514T1800Z.180517T0000Z.NO/
1030 AM CDT Sun May 13 2018

...Flood Warning remains in effect until Wednesday 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 Wednesday evening.
* At 10:15 AM Sunday the stage was 10.1 feet, or 0.1 feet above Flood
  Stage.
* Flood Stage is 10.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 10.3 feet, or 0.3 feet above Flood Stage, Monday
  afternoon. Then begin falling and go below Flood Stage Wednesday 
  evening.
* Impact...At 10.0 feet, Water impacts some homes along Country Club 
  Drive. Sandbagging occurs at the water treatment plant.

&&

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

$$
071 
WGUS83 KDMX 132119
FLSDMX

Flood Statement
National Weather Service Des Moines IA
419 PM CDT Sun May 13 2018

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

  Affecting the following counties in Iowa...Palo Alto...Pocahontas
  
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.

&&

IAC147-151-142118-
/O.CON.KDMX.FL.W.0017.000000T0000Z-180515T2000Z/
/EMTI4.1.ER.180513T0400Z.180514T0000Z.180514T2000Z.NO/
419 PM CDT Sun May 13 2018

...Flood Warning remains in effect until late Monday afternoon...

The Flood Warning continues for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* Until late Monday afternoon.
* At  3:15 PM Sunday the stage was 11.1 feet, or 0.1 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 
  evening. Then begin falling and go below Flood Stage late Monday 
  afternoon.
* 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             

$$
517 
WGUS83 KDMX 140215
FLSDMX

Flood Statement
National Weather Service Des Moines IA
915 PM CDT Sun May 13 2018

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

  Affecting the following counties in Iowa...Palo Alto...Pocahontas
  
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.

&&

IAC147-151-150202-
/O.EXT.KDMX.FL.W.0017.000000T0000Z-180515T0202Z/
/EMTI4.1.ER.180513T0400Z.180513T1645Z.180514T0202Z.NO/
915 PM CDT Sun May 13 2018

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

The Flood Warning continues for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* Until late this evening.
* At  8:15 PM Sunday the stage was 11.0 feet, or 0.0 feet above Flood
  Stage.
* Flood Stage is 11.0 feet.
* Minor flooding is occurring.
* Forecast...continue falling and go below Flood Stage late this 
  evening.
* 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             

$$
666 
WGUS83 KDMX 140903
FLSDMX

Flood Statement
National Weather Service Des Moines IA
403 AM CDT Mon May 14 2018

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

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

  Affecting the following counties in Iowa...Black Hawk...Emmet...
  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.

&&

IAC013-150903-
/O.CON.KDMX.FL.W.0018.180515T0000Z-180516T1800Z/
/CEDI4.1.ER.180515T0000Z.180515T0600Z.180515T1800Z.NO/
403 AM CDT Mon May 14 2018

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

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 Tuesday afternoon.
* At  3:45 AM Monday the stage was 87.4 feet, or 0.6 feet below Flood
  Stage.
* Flood Stage is 88.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage this evening. Continue rising to 
  88.1 feet, or 0.1 feet above Flood Stage, after midnight tonight. 
  Then begin falling and go below Flood Stage Tuesday afternoon.


&&

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

$$

IAC063-150903-
/O.CON.KDMX.FL.W.0005.000000T0000Z-180520T0000Z/
/ESVI4.1.ER.180414T1945Z.180430T0000Z.180519T0000Z.NO/
403 AM CDT Mon May 14 2018

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

The Flood Warning continues for
  The West Fork Des Moines River at Estherville, or From the 
  Iowa-Minnesota border...to near Wallingford.
* Until Friday evening.
* At  3:00 AM Monday the stage was 9.7 feet, or 1.7 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 
  evening.
* 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                       

$$

IAC147-151-140933-
/O.CAN.KDMX.FL.W.0017.000000T0000Z-180515T0202Z/
/EMTI4.1.ER.180513T0400Z.180513T1645Z.180514T0215Z.NO/
403 AM CDT Mon May 14 2018

...Flood Warning is cancelled...

The Flood Warning is cancelled for
  The West Fork Des Moines River at Emmetsburg, or From near 
  Graettinger...to Cylinder Creek near West Bend.
* At  3:15 AM Monday the stage was 10.8 feet, or 0.2 feet below Flood
  Stage.
* Forecast...fall to 10.1 feet Tuesday 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             

$$

IAC091-150903-
/O.CON.KDMX.FL.W.0016.000000T0000Z-180517T1800Z/
/HBTI4.1.ER.180513T0549Z.180514T1800Z.180516T1800Z.NO/
403 AM CDT Mon May 14 2018

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

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 Wednesday afternoon.
* At  3:15 AM Monday the stage was 10.2 feet, or 0.2 feet above Flood
  Stage.
* Flood Stage is 10.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...rise to 10.4 feet, or 0.4 feet above Flood Stage, this 
  afternoon. Then begin falling and go below Flood Stage Wednesday 
  afternoon.
* Impact...At 10.0 feet, Water impacts some homes along Country Club 
  Drive. Sandbagging occurs at the water treatment plant.

&&

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

$$

Podrazik

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 May 12, 5:51 AM CDT, 4 hours 53 minutes earlier.

Area forecast discussion, May 12, 5:51 AM CDT, 4 hours 53 minutes before
Area Forecast Discussion
National Weather Service Des Moines IA
551 AM CDT Sat May 12 2018

.SHORT TERM.../Today through Tonight/
Issued at 440 AM CDT Sat May 12 2018

Convective trends will obviously remain the primary concern into
tonight with at least two rounds expected. Elevated convection has
been in progress since just before midnight along the I80 and/or
Highway 92 corridors. While the available CAPE rooted 1.5-2km is
near 2K j/kg with strong effective shear approaching 50kts, the
relatively weak 15-30kt effective layer inflow near the 305K isent
surface and lack of kinematic support of any significance seems
to be keeping the MCS mainly below severe limits. RAP 305K winds
and moisture convergence suggests this initial MCS will weaken and
exit toward daybreak as winds begin to veer.

Upstream  another MCS has developed across NE, which seems more
influenced by synoptic scale lift in the SW flow aloft. Neither
the parameterized or convection allowing models /CAMs/ seem to
have a good handle on this and appear underdone. The models do
depict another surge of warm/theta-e advection and kinematic
forcing into IA today however so another round of storms is
possible but likely a bit farther north. While the effective shear
will likely remain quite strong, the RAP MUCAPEs diminish into
the morning so the storms should mainly stay below severe limits.
The stronger storms may still produce small hail and brief heavy
rains however. NAEFS and ECMWF specific humidities and
precipitable water percentiles remain quite high into tonight so
rainfall rates of 1-2” per hour will be possible, but not
widespread.

The aforementioned MCS today may still be in progress into the
evening, but most CAMs and model solutions suggest another round
of nocturnal convection will not develop for us tonight. Have
tapered off the PoPs overnight, but this will have to be watched.
The warm advection regime will still be in place aloft, albeit
weaker than previous days and models still depict elevated areas
of MUCAPE south.

Temp wise, with persistent cloud cover and northeast winds
readings should rebound little today and generally be cool.
Outside of low 70s possible south toward the lingering warm front,
highs should only reach mid 50s to lower 60s in most locations.

.LONG TERM.../Sunday through Friday/
Issued at 440 AM CDT Sat May 12 2018

Our pattern will change somewhat in this period with our weak
upper level ridging and SW flow giving way to even weaker zonal
flow into midweek. Other then Monday Night into early Tuesday, the
forcing generally appears nondescript leading to intermittent low
end PoPs continuing through the period. While the models to not
show much, instability does increase quite a bit south late Sunday
so there would be a conditional threat of severe weather. PoPs do
increase Mon Night into Tuesday however when a weak northern
stream wave seems to increase both kinematic and thermodynamic
support. Instability tries to surge northward once again, but flow
aloft and associated shear diminishes somewhat which may keep the
severe potential down. Any of the convection through Monday Night
may produce locally heavy rains as well with similar specific
humidity and precipitable water anomalies.

A more summer-like regime is anticipated later into the week with
weak flow surface and aloft, along with somewhat warm and humid
conditions. Unorganized, isolated convection will be possible but
weak shear will reduce the severe potential. NAEFS and ECMWF
kinematic and moisture percentiles are unremarkable, leading to
lower potential for significant precipitation as well.

&&

.AVIATION.../For the 12Z TAFS through 12Z Sunday morning/
Issued at 550 AM CDT Sat May 12 2018

Although there is a brief break from convection, widespread LIFR-
MVFR ceilings remain in place across all but southern IA and KOTM.
Additional showers and storms will cross the MO River into IA
later this morning however with the steady northeast wind also
likely bringing at least IFR conditions to KOTM. There is low
confidence in convective trends so have only included a near term
thunder mention at most likely locations and no mention of any
precip later. This does not mean precip or thunder won't occur,
but will be omitted until confidence increases. Little change in
conditions is anticipated into tonight with at least IFR likely
remaining in place.

&&

.HYDROLOGY...
Issued at 440 AM CDT Sat May 12 2018

A total of four flood watches and warnings remain in effect for
portions of the West Fork Des Moines and Cedar Rivers. Three day
QPF, while certainly not dry, is not too remarkable and should
have minimal impact on the current flooding situation being either
too weak or too far south and east. The airmass will remain
conducive for locally heavy rains however so there could still be
some further impacts depending on location. RFC contingency
forecasts continue to suggest northern Iowa, in particular the Des
Moines, Iowa and Cedar basins remain the most susceptible.

&&

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

&&

SHORT TERM...Small
LONG TERM...Small
AVIATION...Small
HYDROLOGY...Small
Hazardous weather outlook, May 12, 4:43 AM CDT, 6 hours 1 minute before
Hazardous Weather Outlook
National Weather Service Des Moines IA
443 AM CDT Sat May 12 2018

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-130945-
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-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-
Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-
Appanoose-Davis-
443 AM CDT Sat May 12 2018

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

Scattered thunderstorms are expected throughout the day today and
into this evening. A few isolated severe storms are possible with
the main threat of large hail and damaging winds. Locally heavy
rain is also likely at times.

River flood warnings remain in effect for portions of the upper
reaches of the Des Moines River. Please refer to our website at
weather.gov/desmoines for further details.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

More storms are expected on Sunday afternoon into Monday, Monday
night into Tuesday, and periodically throughout the rest of the
work week. The severe weather potential remains low at this time,
but a few isolated severe storms cannot be ruled out. Heavy rain
is possible as well and may exacerbate the river flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated, but reports are always
welcome and encouraged.

Podrazik

In the hours before

Local storm report, May 12, 7:10 AM CDT, 3 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
710 AM CDT SAT MAY 12 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0330 AM     HAIL             SAINT MARYS             41.31N 93.73W
05/12/2018  M1.00 INCH       WARREN             IA   PUBLIC

            REPORT VIA SOCIAL MEDIA. TIME ESTIMATED BY
            RADAR.

&&
Special weather statement, May 12, 9:47 AM CDT, 57 minutes before
Special Weather Statement
National Weather Service Des Moines IA
947 AM CDT SAT MAY 12 2018

IAZ086-095>097-121530-
Wapello IA-Appanoose IA-Wayne IA-Davis IA-
947 AM CDT SAT MAY 12 2018

...Small Hail, Frequent Lightning, Heavy Rain...

At 946 AM CDT, Doppler radar was tracking a strong thunderstorm 13
miles southeast of Corydon, moving east at 45 mph.

Dime size hail will be possible with this storm.

Rainfall amounts up to around one inch will be possible with this
storm.

Locations impacted include...
Centerville, Bloomfield, Corydon, Lake Sundown, Rathbun Lake,
Seymour, Moravia, Moulton, Mystic, Cincinnati, Drakesville, Exline,
Promise City, Unionville, Numa, Rathbun, Plano, Udell, Honey Creek
State Park and Sharon Bluffs State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4077 9336 4090 9278 4090 9264 4093 9264
      4096 9251 4060 9236 4058 9325
TIME...MOT...LOC 1446Z 259DEG 37KT 4065 9311

Curtis
Special weather statement, May 12, 9:49 AM CDT, 55 minutes before
Special Weather Statement
National Weather Service Des Moines IA
949 AM CDT SAT MAY 12 2018

IAZ083-084-094-095-121530-
Clarke IA-Wayne IA-Lucas IA-Decatur IA-
949 AM CDT SAT MAY 12 2018

...Small Hail and Frequent Lightning...

At 948 AM CDT, Doppler radar was tracking a strong thunderstorm 10
miles northeast of Leon, moving east at 35 mph.

Dime size hail will be possible with this storm.

Brief heavy rainfall will be possible with this storm, including
amounts around a half inch.

Locations impacted include...
Chariton, Rathbun Lake, Russell, Humeston, Van Wert, Lucas, Garden
Grove, Woodburn, Weldon, Derby, Millerton, Le Roy, Red Haw Lake State
Park and Chariton Municipal Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4078 9380 4097 9388 4111 9310 4081 9310
TIME...MOT...LOC 1448Z 265DEG 31KT 4088 9367

Curtis
Local storm report, May 12, 10:12 AM CDT, 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1012 AM CDT SAT MAY 12 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0915 AM     HEAVY RAIN       KELLERTON               40.71N 94.05W
05/12/2018  M1.90 INCH       RINGGOLD           IA   TRAINED SPOTTER

            SPOTTER MEASURED 1.9 INCHES FROM ABOUT 6AM
            THROUGH 915AM THIS MORNING.

&&
Local storm report, May 12, 10:14 AM CDT, 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1014 AM CDT SAT MAY 12 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     HEAVY RAIN       OSKALOOSA               41.29N 92.64W
05/12/2018  M1.80 INCH       MAHASKA            IA   PUBLIC

            PUBLIC MEASURED 1.8 INCHES RAINFALL THROUGH
            ABOUT 9AM. VIA SOCIAL MEDIA.

&&
Local storm report, May 12, 10:17 AM CDT, 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1017 AM CDT SAT MAY 12 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 AM     HEAVY RAIN       3 S POLK CITY           41.74N 93.72W
05/12/2018  M1.72 INCH       POLK               IA   OFFICIAL NWS OBS

            1.72 OVER THE LAST 24 HOURS, INCLUDING 1.45
            SINCE 1AM.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 1:00 AM CDTSpecial Weather StatementDMXPolk45 min
May 12, 1:58 AM CDTSevere Thunderstorm WarningDMXAdair, Dallas, Guthrie, Madison47 min
May 12, 2:41 AM CDTSpecial Weather StatementDMXMarion49 min
May 12, 3:34 AM CDTSpecial Weather StatementDMXWarren56 min
May 12, 3:39 AM CDTSevere Thunderstorm WarningDMXLucas, Marion, Warren33 min
May 12, 6:52 AM CDTSpecial Weather StatementDMXClarke, Ringgold53 min
May 12, 6:57 AM CDTSpecial Weather StatementDMXDecatur48 min
May 12, 9:47 AM CDTSpecial Weather StatementDMXAppanoose, Wayne43 min
May 12, 9:49 AM CDTSpecial Weather StatementDMXLucas41 min

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.