Lyon Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Flood Warning, Areal Flood Warning
Issued: 10:18 AM CDT Sep. 21, 2018 – National Weather Service

... Observed flooding increased from minor to moderate severity...
the Flood Warning continues for
the Big Sioux River at Brandon.
* Until further notice.
* At 10am Friday the stage was 1207.03 feet.
* Flood stage is 1204.00 feet.
* At 1204 feet, significant flooding of crop and pasture land begins.
Access to the north end of the big Sioux Recreation Area on the west
side of Brandon is limited.


Lat... Lon 4359 9665 4362 9664 4360 9657 4345 9656
          4338 9646 4339 9658 4343 9662 4358 9662


Location flood latest observed


243 am CDT Fri Sep 21 2018

The Flood Warning continues for
the Rock River at Rock Valley.
* Until Sunday evening.
* At 02am Friday the stage was 17.30 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Flood stage is 16.00 feet.
* Recent activity... the river rose above flood stage on Thursday
September 20.
* Forecast... the river will rise to 18.5 feet by Friday September 21.
* At stages near 19.0 feet... Rock Valley begins to experience flood
problems and sandbagging of storm sewers in the city begins.


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




243 am CDT Fri Sep 21 2018

The Flood Warning continues for
the Rock River at Rock Rapids.
* Until Sunday evening.
* At 01am Friday the stage was 16.41 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Flood stage is 13.00 feet.
* Forecast... the river will rise to 17.2 feet by Friday September 21.
* At stages near 16.0 feet... the higher banks on the left side of the
river, and the lower banks on the right side, will begin flooding.


Lat... Lon 4350 9625 4350 9614 4338 9611 4331 9618
          4334 9625 4341 9619




243 am CDT Fri Sep 21 2018

The Flood Warning continues for
the Rock River at Luverne.
* Until Saturday evening.
* At 01am Friday the stage was 7.97 feet.
* Minor flooding is forecast.
* Flood stage is 10.00 feet.
* At stages near 10.0 feet... significant agricultural flooding
begins.


Lat... Lon 4371 9622 4370 9611 4360 9616 4350 9614
          4350 9625 4363 9625




243 am CDT Fri Sep 21 2018

The Flood Warning continues for
the Big Sioux River near Canton.
* Until further notice.
* At 02am Friday the stage was 1238.48 feet.
* Flood stage is 1235.00 feet.
* At stages near 1238 feet... nearly all crop and pasture land in the
1/2 mile wide flood plain will be inundated.


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




243 am CDT Fri Sep 21 2018

The Flood Warning continues for
the Big Sioux River at Sioux Falls north cliff.
* Until late Sunday night.
* At 01am Friday the stage was 15.37 feet.
* Moderate flooding is forecast.
* Flood stage is 16.00 feet.
* At stages near 18.0 feet... significant amounts of rural land
downstream of Sioux Falls, and the salvage yard in extreme eastern
Sioux Falls, will begin to flood.


Lat... Lon 4356 9672 4358 9672 4358 9668 4359 9668
          4362 9664 4359 9665 4356 9667




1231 am CDT Fri Sep 21 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 Saturday.

* At 1229 am CDT, emergency management continued to report Road and
field flooding across the warned 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.

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


Kalin


915 am CDT Thu Sep 20 2018

The National Weather Service in Sioux Falls has issued a

* Flood Warning for
the Ocheyedan river near Everly.
* Until further notice.
* At 08am Thursday the stage was 1364.01 feet.
* Flood stage is 1364.00 feet.
* At stages near 1364 feet... ditches fill, the lowest banks overflow,
and minor flooding of agricultural land begins.


Lat... Lon 4324 9542 4324 9537 4318 9534 4317 9527
          4313 9529 4316 9539





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