NOTE: Automated gauge readings are unavailable, readings taken manually.
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
NOTE:
Forecasts for the Floyd River at Sheldon are issued as needed during times of high water, but are not routinely available.
Flood Impacts
19.5
The south approach to the bridge on Highway 60 begins to flood.
16.5
The highest banks and levees are overtopped and major agricultural flooding begins.
14
Flooding affects large areas of farm land within 1000 feet of the river.
12
Agricultural flooding begins.
Flood Categories (in feet)
Major Flood Stage:
16
Moderate Flood Stage:
14
Flood Stage:
12
Action Stage:
11
Historical Crests (1) 19.96 ft on 06/07/1953 (2) 14.10 ft on 07/22/2010 (3) 13.00 ft on 03/28/1962 (4) 12.50 ft on 03/12/2007 (5) 12.50 ft on 06/12/1984 Show More Historical Crests
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
NOTE:
Forecasts for the Floyd River at Alton are issued as needed during times of high water, but are not routinely available.
Flood Impacts
18
The entire flood plain is under water and the river is about 1/2 mile wide. The flooding still primarily only affets agricultural land.
16
Significant amounts of crop and pasture land are flooded.
12
Flooding begins to affect the lower lying agricultural lands along the river.
Flood Categories (in feet)
Major Flood Stage:
18
Moderate Flood Stage:
16
Flood Stage:
12
Action Stage:
10
Historical Crests (1) 18.54 ft on 06/20/1983 (2) 18.40 ft on 03/23/1979 (3) 18.35 ft on 03/28/1962 (4) 17.97 ft on 07/23/2010 (5) 17.78 ft on 03/04/1969 Show More Historical Crests
NOTE: Automated gauge readings are unavailable, readings taken manually.
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
NOTE:
Forecasts for the Floyd River near Struble are issued as needed during times of high water, but are not routinely available.
Flood Impacts
16
County roads begin to flood.
14
Flooding of a significant amount of agricultural lands begins.
12
Minor flooding of the lowest lying agricultural areas upstream of the gage begins.
Flood Categories (in feet)
Major Flood Stage:
16
Moderate Flood Stage:
15
Flood Stage:
14
Action Stage:
12
Historical Crests (1) 15.86 ft on 07/30/2010 (2) 15.86 ft on 03/04/1994 (3) 15.86 ft on 06/20/1983 (4) 15.63 ft on 03/28/1962 (5) 15.50 ft on 02/19/1971 Show More Historical Crests
NOTE: Automated gauge readings are unavailable, readings taken manually.
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
NOTE:
Forecasts for the Floyd River at Le Mars are issued as needed during times of high water, but are not routinely available.
Flood Impacts
24
Approximately 2100 acres of farm land are flooded.
22
Approximately 1400 acres of farm land are flooded.
21
Flooding begins to affect 4th Avenue NE in Le Mars.
20.5
160th Street near Highway 60 is flooded.
20
Some agricultural land begins to flood...and the low lying areas in the western edges of Le Mars begin to flood.
Flood Categories (in feet)
Major Flood Stage:
24
Moderate Flood Stage:
21
Flood Stage:
20
Action Stage:
18
Historical Crests (1) 26.40 ft on 06/08/1953 (2) 24.50 ft on 06/21/1996 (3) 24.40 ft on 04/03/1973 (4) 24.10 ft on 03/29/1962 (5) 24.00 ft on 06/21/1983 Show More Historical Crests
NOTE: Automated gauge readings are unavailable, readings taken manually.
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
NOTE:
Forecasts for the Floyd River at Merrill are issued as needed during times of high water, but are not routinely available.
Flood Impacts
24
Plymouth County Highway C44 at the east of the bridge at the gage will be flooded.
21
The bridge on County Road C38 is overtopped...and water reached the low steel on the bridge on Plymouth County Highway C44.
20.5
The railroad tracks at the bridge 750 feet upstream of the gage are flooded.
19
Approximately 2200 acres of farm land are flooded.
18
The water reaches the bottom of the bridge on County Road C38.
17.5
The levees protecting the sewage treatment lagoons on the left bank of the river are overtopped.
16
Flooding begins to affect the eastern edges of the city of Merrill...and about 2000 acres of farm land are flooded.
15.5
The west approach to the bridge on Plymouth County Highway C44 at the gaging location begins to flood.
14
Approximately 1600 acres of farm land are flooded.
12
Flooding of the low lying farm land begins.
Flood Categories (in feet)
Major Flood Stage:
16
Moderate Flood Stage:
14
Flood Stage:
12
Action Stage:
10
Historical Crests (1) 20.00 ft on 09/18/1926 (2) 18.40 ft on 06/07/1934 (3) 18.00 ft on 06/08/1953 (4) 17.00 ft on 06/16/1983 (5) 17.00 ft on 03/24/1979 Show More Historical Crests
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
NOTE:
Forecasts for the Floyd River at James are issued as needed during times of high water, but are not routinely available.
Flood Impacts
38
The levees in and around Sioux City downstream of the gage begin to be overtopped.
36
Flooding begins to affect the town of James.
35.5
The Railroad Closures in Sioux City should be closed.
34.5
Approximately 3700 acres of farm land are flooded.
34
The northbound lane of Highway 75 is flooded...and the railroad company begins to shut down operations.
31.5
Flooding begins to affect the farm levees...and about 3200 acres of farm land are flooded.
30
County Highway C70 begins to flood.
28.5
Approximately 2100 acres of farm land are flooded.
27.5
Approximately 1500 acres of farm land are flooded.
26
Flooding begins to affect the low lying agricultural lands.
23
The lowest banks are overtopped with minor lowland flooding.
18
The Floyd River Levee Gates in Sioux City begin closing.
Flood Categories (in feet)
Major Flood Stage:
34
Moderate Flood Stage:
30
Flood Stage:
26
Action Stage:
24
Historical Crests (1) 28.85 ft on 06/21/1983 (2) 28.19 ft on 03/23/1979 (3) 28.13 ft on 02/19/1971 (4) 25.35 ft on 06/22/1996 (5) 25.30 ft on 06/08/1953 Show More Historical Crests
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Des Moines Weather Forecast Office
9607 NW Beaver Dr.
Des Moines, IA 50131
(515) 270-2614 Ask Questions/Webmaster
Page last modified: 3-Aug-2012 12:12 AM
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