233
WGUS83 KFSD 111416
FLSFSD

Flood Statement
National Weather Service Sioux Falls SD
916 AM CDT Sat May 11 2024

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

  Little Sioux River At Linn Grove affecting O`Brien, Clay, Buena
  Vista and Cherokee Counties.

  Ocheyedan River near Spencer affecting Clay County.

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

  Little Sioux River at Cherokee affecting Cherokee County.

  Little Sioux River at Spencer affecting Clay County.

  Little Sioux River near Milford affecting Dickinson 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 Sunday morning.

&&

IAC021-035-041-141-121630-
/O.CON.KFSD.FL.W.0009.000000T0000Z-240514T1200Z/
/LNNI4.1.ER.240510T2000Z.240512T0600Z.240513T1200Z.NO/
916 AM CDT Sat May 11 2024

...FLOOD WARNING REMAINS IN EFFECT UNTIL TUESDAY MORNING...

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

* WHERE...Little Sioux River at Linn Grove.

* WHEN...Until Tuesday morning.

* IMPACTS...At 18.5 feet, the city park in Sioux Rapids is flooded.

* ADDITIONAL DETAILS...
  - At 9:00 AM CDT Saturday the stage was 18.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:00 AM CDT Saturday was 18.1 feet.
  - Forecast...The river is expected to rise to a crest of 18.6
    feet just after midnight tonight. It will then fall below
    flood stage Monday morning.
  - Flood stage is 18.0 feet.
  - http://www.weather.gov/safety/flood

&&

  Fld    Observed            Forecasts (7 am CDT)
Location          Stg    Stg    Day/Time     Sun   Mon   Tue

Little Sioux River
Linn Grove        18.0   18.0   Sat 9 am     18.5  18.0  17.2


&&

LAT...LON 4296 9544 4296 9508 4287 9509 4287 9542
      4292 9547


$$

IAC041-121630-
/O.CON.KFSD.FL.W.0008.000000T0000Z-240515T1200Z/
/SPOI4.2.ER.240507T0852Z.240510T0615Z.240514T1200Z.NO/
916 AM CDT Sat May 11 2024

...FLOOD WARNING REMAINS IN EFFECT UNTIL WEDNESDAY MORNING...

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

* WHERE...Ocheyedan River near Spencer.

* WHEN...Until Wednesday morning.

* IMPACTS...At 9.5 feet, significant amounts of pasture and other
  farm land begin flooding.

* ADDITIONAL DETAILS...
  - At 8:45 AM CDT Saturday the stage was 9.7 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:45 AM CDT Saturday was 9.9 feet.
  - Forecast...The river is expected to fall below flood stage
    Tuesday morning and continue falling to 7.5 feet Wednesday
    evening.
  - Flood stage is 8.0 feet.
  - http://www.weather.gov/safety/flood

&&

               Fld    Observed            Forecasts (7 am CDT)
Location       Stg    Stg    Day/Time     Sun   Mon   Tue

Ocheyedan River
Spencer        8.0    9.7    Sat 8 am     9.2   8.3   8.0


&&

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


$$

IAC041-121630-
/O.CON.KFSD.FL.W.0005.000000T0000Z-000000T0000Z/
/SPII4.1.ER.240502T1330Z.240510T0115Z.000000T0000Z.UU/
916 AM CDT Sat May 11 2024

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

* WHAT...Minor flooding is occurring.

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

* WHEN...Until further notice.

* ADDITIONAL DETAILS...
  - At 8:15 AM CDT Saturday the stage was 1323.1 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:15 AM CDT Saturday was 1323.2 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 1323.1 Sat 8 am     MSG   MSG   MSG


&&

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


$$

IAC035-121630-
/O.CON.KFSD.FL.W.0004.000000T0000Z-000000T0000Z/
/CHKI4.1.ER.240503T0032Z.240510T0700Z.000000T0000Z.NO/
916 AM CDT Sat May 11 2024

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

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

* WHERE...Little Sioux River at Cherokee.

* WHEN...Until further notice.

* IMPACTS...At 19.0 feet, the north bank of the river overflows.

* ADDITIONAL DETAILS...
  - At 8:00 AM CDT Saturday the stage was 19.7 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:00 AM CDT Saturday was 20.2 feet.
  - Forecast...The river is expected to fall to 17.6 feet
    Wednesday evening.
  - Flood stage is 17.0 feet.
  - http://www.weather.gov/safety/flood

&&

  Fld    Observed            Forecasts (7 am CDT)
Location          Stg    Stg    Day/Time     Sun   Mon   Tue

Little Sioux River
Cherokee          17.0   19.7   Sat 8 am     19.5  19.0  18.7


&&

LAT...LON 4292 9547 4287 9542 4264 9555 4256 9569
      4256 9581 4269 9561 4280 9559


$$

IAC041-121630-
/O.CON.KFSD.FL.W.0002.000000T0000Z-000000T0000Z/
/SPWI4.1.ER.240501T0257Z.240510T1015Z.000000T0000Z.NO/
916 AM CDT Sat May 11 2024

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

* WHAT...Minor 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 8:00 AM CDT Saturday the stage was 12.9 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:00 AM CDT Saturday was 13.2 feet.
  - Forecast...The river is expected to rise to a crest of 13.0
    feet this afternoon.
  - Flood stage is 10.0 feet.
  - http://www.weather.gov/safety/flood

&&

  Fld    Observed            Forecasts (7 am CDT)
Location          Stg    Stg    Day/Time     Sun   Mon   Tue

Little Sioux River
Spencer           10.0   12.9   Sat 8 am     12.6  12.0  11.3


&&

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


$$

IAC059-121630-
/O.CON.KFSD.FL.W.0001.000000T0000Z-240516T1800Z/
/MIFI4.2.ER.240501T0040Z.240509T1100Z.240515T1800Z.NO/
916 AM CDT Sat May 11 2024

...FLOOD WARNING REMAINS IN EFFECT UNTIL EARLY THURSDAY AFTERNOON...

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

* WHERE...Little Sioux River near Milford.

* WHEN...Until early Thursday afternoon.

* IMPACTS...At 14.0 feet, significant amounts of pasture and other
  farm lands begin to flood.

* ADDITIONAL DETAILS...
  - At 7:00 AM CDT Saturday the stage was 13.8 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 7:00 AM CDT Saturday was 13.8 feet.
  - Forecast...The river is expected to fall below flood stage
    early Wednesday afternoon and continue falling to 11.8 feet
    Thursday morning.
  - Flood stage is 12.0 feet.
  - http://www.weather.gov/safety/flood

&&

  Fld    Observed            Forecasts (7 am CDT)
Location          Stg    Stg    Day/Time     Sun   Mon   Tue

Little Sioux River
Milford           12.0   13.8   Sat 7 am     13.2  12.8  12.5


&&

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


$$

JM