Union Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Flood Warning
Issued: 10:48 AM CDT Mar. 19, 2019 – National Weather Service

... Forecast flooding increased from major to record severity...
the Flood Warning continues for
the Big Sioux River above Hawarden.
* Until further notice.
* At 09am Tuesday the stage was 30.15 feet.
* Major flooding is occurring and record flooding is forecast.
* Flood stage is 20.50 feet.
* Forecast... the river will crest near 37.3 feet by 7 am
Thursday.


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




1016 PM CDT Mon Mar 18 2019

The Flood Warning continues for
the Big Sioux River at Sioux City.
* Until late Tuesday night.
* At 09pm Monday the stage was 33.34 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Flood stage is 32.00 feet.
* Forecast... the river will continue to fall to below flood stage by
Tuesday March 19.
* At stages near 32.0 feet... agricultural land north of the leveed
area begins to flood.


Lat... Lon 4257 9651 4257 9647 4256 9647 4251 9647
          4250 9646 4250 9644 4248 9645 4249 9650
          4253 9652




1016 PM CDT Mon Mar 18 2019

The Flood Warning continues for
the Big Sioux River near Jefferson.
* Until further notice.
* At 09pm Monday the stage was 37.96 feet.
* Flood stage is 31.00 feet.


Lat... Lon 4264 9661 4268 9655 4265 9651 4257 9647
          4257 9651




1016 PM CDT Mon Mar 18 2019

The Flood Warning continues for
the Big Sioux River near Richland.
* Until further notice.
* At 09pm Monday the stage was 1122.24 feet.
* Flood stage is 1117.00 feet.
* At stages near 1121 feet... some farm levees will be overtopped and
some farm buildings will be flooded.


Lat... Lon 4278 9665 4277 9659 4273 9660 4268 9655
          4264 9661 4270 9666




1016 PM CDT Mon Mar 18 2019

The Flood Warning continues for
the Big Sioux River at Akron.
* Until further notice.
* At 09pm Monday the stage was 20.98 feet.
* Major flooding is occurring and major flooding is forecast.
* Flood stage is 16.00 feet.
* Forecast... the river will continue rising to near 21.1 feet by
Tuesday March 19. Additional rises may be possible thereafter.
* At stages near 21.5 feet... Highway 48 near the intersection with
Iowa Highway 12 north of Akron begins to flood.


Lat... Lon 4291 9658 4291 9649 4281 9654 4277 9659
          4278 9665




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