Flood Statement
Issued by NWS Sioux Falls, SD

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000
WGUS83 KFSD 231409
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
909 AM CDT Tue May 23 2017

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

  Ocheyedan River Near Spencer
  Little Sioux River Near Milford
  Little Sioux River At Spencer
  Little Sioux River At Linn Grove
  Big Sioux River above Hawarden
  Big Sioux River At Akron

.The following river forecasts include forecast precipitation through
tonight. Any additional future rains could affect the crest
forecasts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message...Do not drive cars through flooded areas. the water
depth and road condition may be unsafe.

Additional information is available at

http://water.weather.gov/ahps2/index.php?wfo=fsd

Stay tuned for further updates by listening to NOAA weather radio...
or your local radio and TV stations.

The next scheduled statement will be issued tomorrow morning.

&&

IAC149-167-SDC127-241809-
/O.CON.KFSD.FL.W.0012.000000T0000Z-170525T0359Z/
/HWDI4.1.ER.170521T1530Z.170523T1145Z.170524T2159Z.UU/
909 AM CDT Tue May 23 2017

The Flood Warning continues for
  The Big Sioux River above Hawarden.
* until Wednesday evening.
* At 08AM Tuesday the stage was 20.3 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 19.0 feet.
* Forecast...The river will continue to fall to below flood stage by
  Wednesday May 24.
* At stages near 19.0 feet...Agricultural flooding begins on the
  South Dakota side of the river.

&&

LAT...LON 4331 9663 4331 9651 4314 9641 4303 9647
          4303 9654 4312 9654

$$

IAC149-SDC127-241809-
/O.EXT.KFSD.FL.W.0017.170523T1452Z-170525T2000Z/
/AKRI4.1.ER.170523T1452Z.170524T0000Z.170524T2000Z.NO/
909 AM CDT Tue May 23 2017

...Flood Warning extended until Thursday May 25...
The Flood Warning continues for
  The Big Sioux River At Akron.
* until Thursday afternoon.
* At 08AM Tuesday the stage was 15.9 feet.
* Minor flooding is forecast.
* Flood stage is 16.0 feet.
* Forecast...Rise above flood stage Tuesday May 23 and crest near
  16.2 feet early Wednesday. The river will fall below flood stage
  by late Wednesday May 24.
* At stages near 16.0 feet...Several farm levees are overtopped with
  significant flooding of agricultural lands.

&&

LAT...LON 4296 9657 4296 9645 4286 9652 4273 9648
          4273 9669 4277 9667

$$

IAC041-241809-
/O.EXT.KFSD.FL.W.0013.000000T0000Z-170525T1000Z/
/SPOI4.1.ER.170521T0707Z.170523T0215Z.170524T1000Z.NO/
909 AM CDT Tue May 23 2017

The Flood Warning continues for
  The Ocheyedan River Near Spencer.
* until late Wednesday night.
* At 08AM Tuesday the stage was 8.7 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 8.0 feet.
* Forecast...The river will continue to fall to below flood stage by
  Wednesday May 24.
* At stages near 8.0 feet...Minor flooding of pasture land begins.

&&

LAT...LON 4318 9540 4318 9533 4315 9520 4313 9513
          4312 9524 4315 9540

$$

IAC041-059-241809-
/O.CON.KFSD.FL.W.0016.000000T0000Z-000000T0000Z/
/MIFI4.1.ER.170521T0830Z.170523T1300Z.000000T0000Z.NO/
909 AM CDT Tue May 23 2017

The Flood Warning continues for
  The Little Sioux River Near Milford.
* until further notice.
* At 08AM Tuesday the stage was 12.4 feet.
* Flood stage is 12.0 feet.
* At stages near 12.0 feet...Minor flooding of low lying agricultural
  lands begins.

&&

LAT...LON 4350 9533 4350 9526 4334 9519 4334 9516
          4328 9517 4329 9524

$$

IAC041-241809-
/O.EXT.KFSD.FL.W.0014.000000T0000Z-170527T1500Z/
/SPWI4.1.ER.170521T0030Z.170523T1115Z.170526T1500Z.NO/
909 AM CDT Tue May 23 2017

The Flood Warning continues for
  The Little Sioux River At Spencer.
* until Saturday morning.
* At 08AM Tuesday the stage was 12.2 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 10.0 feet.
* Forecast...The river will continue to fall to below flood stage by
  Friday May 26.

&&

LAT...LON 4315 9518 4315 9512 4315 9505 4299 9503
          4302 9510 4310 9510

$$

IAC021-041-241809-
/O.EXT.KFSD.FL.W.0015.000000T0000Z-170529T0000Z/
/LNNI4.1.ER.170521T1215Z.170525T1800Z.170528T0000Z.NO/
909 AM CDT Tue May 23 2017

The Flood Warning continues for
  The Little Sioux River At Linn Grove.
* until Sunday evening.
* At 08AM Tuesday the stage was 18.6 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 18.0 feet.
* Forecast...The river will crest near 19.2 feet by Thursday May 25.
  The river will fall below flood stage Saturday May 27.
* At stages near 18.5 feet...The city park in Sioux Rapids is
  flooded.

&&

LAT...LON 4302 9510 4299 9503 4287 9512 4288 9536
          4296 9543 4293 9520

$$

&&
Location Flood  Latest Observed  Maximum Forecast  Recent Observed
         Stage  Stage  Time      Stage  Time       Crest Time

BIG SIOUX RIVER
HWDI4    19.0   20.30 Tue 8 AM                      20.3  Tue May 23
AKRI4    16.0   15.94 Tue 8 AM    16.2  Tue 7 PM

OCHEYEDAN RIVER
SPOI4     8.0    8.66 Tue 9 AM                       9.1  Mon May 22

LITTLE SIOUX RIVER
MIFI4    12.0   12.44 Tue 8 AM                      12.5  Tue May 23
SPWI4    10.0   12.19 Tue 8 AM                      12.2  Tue May 23
LNNI4    18.0   18.59 Tue 8 AM    19.2  Thu 1 PM

MG



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