Clay Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Areal Flood Warning
Issued: 12:39 PM CDT Sep. 20, 2018 – National Weather Service

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 Friday.

* At 1232 PM CDT, emergency management reported numerous County and
township roads across the area inundated with water. Some areas of
urban flooding also continue in low-lying and poor drainage areas.
This flooding is a result of widespread thunderstorms with heavy
rain from yesterday through early this morning, which dumped a
band of 3 to 6 inches of rainfall from southeast South Dakota
through northwest Iowa. Water levels should either peak or begin
to slowly recede this afternoon or early evening, but will have to
monitor for impacts from additional thunderstorms this afternoon
that have potential to produce locally more than an inch of
rainfall, especially east of Interstate 29.

* This replaces the earlier flash flood warnings for the area.

* 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.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.


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


Chapman


915 am CDT Thu Sep 20 2018

The National Weather Service in Sioux Falls has issued a

* Flood Warning for
the Willow Creek near Willow Creek near Cornell.
* Until further notice.
* At 08am Thursday the stage was 90.46 feet.
* Flood stage is 90.00 feet.
* At stages near 90.0 feet... the lower banks overtop and minor
agricultural flooding begins.


Lat... Lon 4300 9521 4297 9512 4296 9512 4297 9520
          4298 9521




915 am CDT Thu Sep 20 2018

... Forecast flooding increased from minor to moderate severity...
the Flood Warning continues for
the Little Sioux river at Spencer.
* Until further notice.
* At 07am Thursday the stage was 11.47 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Flood stage is 10.00 feet.
* Forecast... the river will crest near 14.4 feet by 7 PM
Thursday.
* At stages near 14.5 feet... County Road b40 southeast of Spencer
begins flooding.


Lat... Lon 4321 9528 4321 9517 4314 9503 4299 9503
          4302 9510 4310 9511 4314 9523




915 am CDT Thu Sep 20 2018

... Forecast flooding increased from moderate to major severity...
the Flood Warning continues for
the Little Sioux river at Linn Grove.
* Until further notice.
* At 08am Thursday the stage was 18.09 feet.
* Minor flooding is occurring and major flooding is forecast.
* Flood stage is 18.00 feet.
* Forecast... the river will crest near 21.9 feet by 1 am
Sunday.


Lat... Lon 4302 9510 4299 9503 4287 9512 4288 9536
          4296 9543 4293 9520




649 am CDT Thu Sep 20 2018

The National Weather Service in Sioux Falls has issued a

* Flood Warning for
the Little Sioux river near Milford.
* Until Tuesday evening.
* At 05am Thursday the stage was 13.67 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Flood stage is 12.00 feet.
* Forecast... the river will crest near 15.7 feet by 1 am Friday.
* At stages near 15.5 feet... the bridge on 190th Avenue near 2430th
street is overtopped, and 180th street between 170th Avenue and 190th
Avenue is flooded.


Lat... Lon 4341 9527 4341 9521 4334 9520 4331 9515
          4321 9517 4321 9528 4330 9525




649 am CDT Thu Sep 20 2018

The National Weather Service in Sioux Falls has issued a

* Flood Warning for
the Ocheyedan river near Spencer.
* Until late Sunday night.
* At 05am Thursday the stage was 9.73 feet.
* Moderate flooding is occurring and major flooding is forecast.
* Flood stage is 8.00 feet.
* Forecast... the river will crest near 10.6 feet by 7 PM Thursday.
* At stages near 10.5 feet... major agricultural flooding begins and
some County roads are also flooded.


Lat... Lon 4313 9529 4317 9527 4314 9521 4314 9515
          4313 9515 4311 9520




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