630
WGUS83 KFSD 201519
FLSFSD

Flood Statement
National Weather Service Sioux Falls SD
1019 AM CDT Thu Jun 20 2024

...The Flood Warning is extended for the following rivers in Iowa...

  Ocheyedan River near Spencer affecting Clay County.

...The Flood Warning continues for the following rivers in Iowa...

  Little Sioux River at Spencer affecting Clay County.

  Little Sioux River near Milford affecting Dickinson County.

  Little Sioux River above Spencer / Highway 18 affecting Clay
  County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued by Friday afternoon.

&&

IAC041-211730-
/O.EXT.KFSD.FL.W.0028.000000T0000Z-000000T0000Z/
/SPOI4.3.ER.240617T2345Z.240619T1115Z.000000T0000Z.NO/
1019 AM CDT Thu Jun 20 2024

...FLOOD WARNING NOW IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Moderate flooding is occurring and moderate flooding is
  forecast.

* WHERE...Ocheyedan River near Spencer.

* WHEN...Until further notice.

* IMPACTS...At 10.5 feet, Significant amounts of agricultural land
  are flooded and some county roads may begin to flood.

* ADDITIONAL DETAILS...
  - At 10:00 AM CDT Thursday the stage was 10.3 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 10:00 AM CDT Thursday was 10.5 feet.
  - Forecast...The river is expected to fall to 8.1 feet Tuesday
    morning. This forecast will be heavily impacted by how much
    rain eventually falls.
  - Flood stage is 8.0 feet.
  - http://www.weather.gov/safety/flood

&&

               Fld    Observed          Forecasts (1 pm CDT)
Location       Stg    Stg    Day/Time   Fri   Sat   Sun

Ocheyedan River
Spencer        8.0    10.3   Thu 10 am  9.4   9.1   8.7


&&

LAT...LON 4317 9531 4314 9516 4313 9514 4312 9520
      4313 9531


$$

IAC041-211730-
/O.CON.KFSD.FL.W.0027.000000T0000Z-000000T0000Z/
/SPWI4.2.ER.240617T0733Z.240620T0000Z.000000T0000Z.NO/
1019 AM CDT Thu Jun 20 2024

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Moderate flooding is occurring and minor flooding is
  forecast.

* WHERE...Little Sioux River at Spencer.

* WHEN...Until further notice.

* IMPACTS...At 14.0 feet, City sewers in Spencer can begin to back
  up. Highway 18 between Spencer and Dickens can start flooding if
  flows on the tributary creeks are also very high.

* ADDITIONAL DETAILS...
  - At 9:00 AM CDT Thursday the stage was 14.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:00 AM CDT Thursday was 14.1 feet.
  - Forecast...The river is expected to fall to 12.0 feet Tuesday
    morning. This forecast will be heavily impacted by how much
    rain eventually falls.
  - Flood stage is 10.0 feet.
  - http://www.weather.gov/safety/flood

&&

                  Fld    Observed          Forecasts (1 pm CDT)
Location          Stg    Stg    Day/Time   Fri   Sat   Sun

Little Sioux River
Spencer           10.0   14.0   Thu 9 am   13.3  12.8  12.5


&&

LAT...LON 4317 9520 4317 9514 4313 9502 4300 9501
      4296 9508 4296 9516 4306 9508 4312 9519


$$

IAC059-211730-
/O.CON.KFSD.FL.W.0026.000000T0000Z-000000T0000Z/
/MIFI4.2.ER.240617T0955Z.240618T1500Z.000000T0000Z.NO/
1019 AM CDT Thu Jun 20 2024

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Moderate flooding is occurring and moderate flooding is
  forecast.

* WHERE...Little Sioux River near Milford.

* WHEN...Until further notice.

* IMPACTS...At 16.5 feet, The lowest portion of 180th St is flooded.

* ADDITIONAL DETAILS...
  - At 9:00 AM CDT Thursday the stage was 14.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:00 AM CDT Thursday was 15.1 feet.
  - Forecast...The river will gradually fall but this forecast
    will be heavily impacted by how much rain eventually falls.
  - Flood stage is 12.0 feet.
  - http://www.weather.gov/safety/flood

&&

                  Fld    Observed          Forecasts (1 pm CDT)
Location          Stg    Stg    Day/Time   Fri   Sat   Sun

Little Sioux River
Milford           12.0   14.4   Thu 9 am   14.7  14.8  14.1


&&

LAT...LON 4341 9527 4341 9523 4330 9515 4326 9520
      4326 9527 4329 9523


$$

IAC041-211730-
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/
/SPII4.2.ER.240616T2045Z.240620T1145Z.000000T0000Z.UU/
1019 AM CDT Thu Jun 20 2024

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Moderate flooding is occurring.

* WHERE...Little Sioux River above Spencer / Highway 18.

* WHEN...Until further notice.

* IMPACTS...At 1322.5 feet, Most banks begin to be overtopped and
  overspill into nearby agricultural land.

* ADDITIONAL DETAILS...
  - At 9:15 AM CDT Thursday the stage was 1324.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:15 AM CDT Thursday was 1324.1 feet.
  - Forecast...No forecast is available for this location.
  - Flood stage is 1322.0 feet.
  - http://www.weather.gov/safety/flood

&&

  Fld    Observed          Forecasts (unknown time)
Location            Stg    Stg    Day/Time   d1    d2    d3

Little Sioux River
Spencer / Highway 1 1322.0 1324.0 Thu 9 am   MSG   MSG   MSG


&&

LAT...LON 4326 9527 4326 9520 4321 9521 4317 9514
      4317 9520 4321 9526


$$

Kalin