Sioux Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Flood Warning, Areal Flood Warning
Issued: 10:13 AM CDT Sep. 22, 2018 – National Weather Service

The Flood Warning continues for
the Rock River at Rock Valley.
* Until Sunday evening.
* At 09am Saturday the stage was 17.73 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Flood stage is 16.00 feet.
* Recent activity... the river crested at 18.5 feet on Friday September 21.
* Forecast... the river will continue to fall to below flood stage by
Saturday September 22.
* At stages near 16.0 feet... significant amounts of agricultural
lands are flooded, and some rural roads are also threatened by high
water.


Lat... Lon 4334 9625 4331 9618 4312 9636 4303 9647
          4314 9644 4325 9639




1013 am CDT Sat Sep 22 2018

The Flood Warning continues for
the West Branch Floyd river near Struble.
* Until Sunday morning.
* At 08am Saturday the stage was 14.19 feet.
* Minor flooding is occurring.
* Flood stage is 14.00 feet.
* Recent activity... the river crested at 16.2 feet on Friday September 21.
* Forecast... the river will continue to fall to below flood stage by
Saturday September 22.
* At stages near 14.0 feet... flooding of a significant amount of
agricultural lands begins.


Lat... Lon 4296 9622 4296 9616 4285 9617 4274 9622
           4274 9626 4286 9622




1013 am CDT Sat Sep 22 2018

The Flood Warning continues for
the Floyd river at Alton.
* Until late Sunday night.
* At 09am Saturday the stage was 16.41 feet.
* Moderate flooding is occurring and minor flooding is forecast.
* Flood stage is 12.00 feet.
* Recent activity... the river crested at 22.0 feet on Thursday September 20.
* Forecast... the river will continue to fall to below flood stage by
Sunday September 23.
* At stages near 16.0 feet... significant amounts of crop and pasture
land are flooded.


Lat... Lon 4307 9596 4307 9589 4299 9598 4291 9603
          4291 9610 4300 9603




1013 am CDT Sat Sep 22 2018

The Flood Warning continues for
the Big Sioux River above Hawarden.
* Until late Wednesday night.
* At 08am Saturday the stage was 31.43 feet.
* Major flooding is occurring and major flooding is forecast.
* Flood stage is 20.50 feet.
* Forecast... the river will crest near 31.5 feet by Saturday
September 22.
* At stages near 32.0 feet... water backs up into the park in
Hawarden, and some basements and sewers could begin to have
problems.



Lat... Lon 4308 9654 4308 9641 4302 9646 4291 9649
          4291 9658




1013 am CDT Sat Sep 22 2018

The Flood Warning continues for
the Big Sioux River near Canton.
* Until further notice.
* At 09am Saturday the stage was 1240.99 feet.
* Flood stage is 1235.00 feet.


Lat... Lon 4339 9658 4338 9648 4327 9648 4327 9652
          4324 9652 4320 9652 4321 9661
          4332 9660 4331 9656




1235 am CDT Sat Sep 22 2018

The National Weather Service in Sioux Falls has issued a

* Flood Warning for...
southwestern Lyon County in northwestern Iowa...
Sioux County in northwestern Iowa...
Clay County in northwestern Iowa...
O'Brien County in northwestern Iowa...
northern Clay County in southeastern South Dakota...
Lincoln County in southeastern South Dakota...
Yankton County in southeastern South Dakota...
Turner County in southeastern South Dakota...
northern Union County in southeastern South Dakota...
Hutchinson County in southeastern South Dakota...

* until 1230 am CDT Sunday.

* Some secondary roads continue to be flooded across extreme
southeast South Dakota and extreme northwest Iowa due to recent
very heavy rainfall.

* Some locations that will experience flooding include...
Yankton, Spencer in Clay County, Sioux Center, Orange City,
Sheldon, Canton, Hawarden, Beresford, Parker, Harrisburg, Tea, Rock
Valley, Hull, Lennox, Hartley, Sanborn, Freeman, Alton, Paullina
and Primghar.

Precautionary/preparedness actions...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Lat... Lon 4292 9495 4291 9764 4317 9764 4317 9787
      4350 9787 4347 9680 4325 9585 4322 9494
      4312 9492


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