Continued periods of heavy rainfall kept levels of the upper and middle Little Sioux River high through much of the month of May.  Flooding continued out of April, and was renewed again through mid to late month.

Flood in CLAY, IOWA
From 01-MAY-18 00:00:00 to 20-MAY-18 06:00:00 (CST-6)
Location: FOSTORIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding continued from April, and was generally minor with impacts limited to near river agricultural areas until falling below flood stage near Milford (gage site MIFI4) on May 6. Rainfall over the first two weeks of May totalled from 3 to 5 inches in the upper Little Sioux Basin, including 5.01 inches at Lake Park, 4.85 inches 4 miles northwest of Milford and 4.69 inches in Spirit Lake. The river rose back above flood stage on May 9 and crested in moderate flood stage (2.7 feet above flood stage) on May 14, inundating a large amount of pasture and crop land along the flood plain. The river dropped below flood stage on May 20.

Flood in CLAY, IOWA
From 01-MAY-18 00:00:00 to 24-MAY-18 08:00:00 (CST-6)
Location: SPENCER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding of the Little Sioux River continued from April, and was generally minor with impacts limited to near-river agricultural areas and the city park greenway in Spencer until falling below flood stage (gage site SPWI4) on May 8.  However, rainfall was relentless over the first two weeks of May, totaling a widespread 3 to 5 inches in the upper Little Sioux Basin, including 5.01 inches at Lake Park, 4.85 inches 4 miles northwest of Milford, 4.69 inches in Spirit Lake, 3.95 inches near Everly and 3.20 inches at Spencer. The river rose back above flood stage on May 9 and crested again in minor flood stage (2.9 feet above flood stage) on May 13, inundating a large amount of pasture and crop land along the flood plain. The river dropped below flood stage on May 24.

Flood in CLAY, IOWA
From 01-MAY-18 00:00:00 to 26-MAY-18 03:00:00 (CST-6)
Location: GREENVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding of the Little Sioux River continued from April, impacting near-river agricultural areas. However, rainfall was relentless over the first two weeks of May, totaling a widespread 3 to 5 inches in the upper Little Sioux Basin, including 5.01 inches at Lake Park, 4.85 inches 4 miles northwest of Milford, 4.69 inches in Spirit Lake, 3.95 inches near Everly and 3.20 inches at Spencer. There were multiple crests at Linn Grove (gage site LNNI4) during the following three weeks, with the highest crest reaching moderate flooding (1.7 feet above flood stage) on May 15, inundating a large amount of pasture and crop land along the flood plain as well as the city park in Sioux Rapids. The river dropped below flood stage on May 26.

Flood in BUENA VISTA, IOWA
From 01-MAY-18 00:00:00 to 26-MAY-18 03:00:00 (CST-6)
Location: SIOUX RAPIDS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding of the Little Sioux River continued from April, impacting near-river agricultural areas. However, rainfall was relentless over the first two weeks of May, totaling a widespread 3 to 5 inches in the upper Little Sioux Basin, including 5.01 inches at Lake Park, 4.85 inches 4 miles northwest of Milford, 4.69 inches in Spirit Lake, 3.95 inches near Everly and 3.20 inches at Spencer. There were multiple crests at Linn Grove (gage site LNNI4) during the following three weeks, with the highest crest reaching moderate flooding (1.7 feet above flood stage) on May 15, inundating a large amount of pasture and crop land along the flood plain as well as the city park in Sioux Rapids. The river dropped below flood stage on May 26.

Flood in O'BRIEN, IOWA
From 01-MAY-18 00:00:00 to 26-MAY-18 03:00:00 (CST-6)
Location: SUTHERLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding of the Little Sioux River continued from April, impacting near-river agricultural areas. However, rainfall was relentless over the first two weeks of May, totaling a widespread 3 to 5 inches in the upper Little Sioux Basin, including 5.01 inches at Lake Park, 4.85 inches 4 miles northwest of Milford, 4.69 inches in Spirit Lake, 3.95 inches near Everly and 3.20 inches at Spencer. There were multiple crests at Linn Grove (gage site LNNI4) during the following three weeks, with the highest crest reaching moderate flooding (1.7 feet above flood stage) on May 15, inundating a large amount of pasture and crop land along the flood plain as well as the city park in Sioux Rapids. The river dropped below flood stage on May 26.

Flood in DICKINSON, IOWA
From 01-MAY-18 00:00:00 to 20-MAY-18 06:00:00 (CST-6)
Location: MONTGOMERY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding continued from April, and was generally minor with impacts limited to near river agricultural areas until falling below flood stage near Milford (gage site MIFI4) on May 6.  Rainfall over the first two weeks of May totalled from 3 to 5 inches in the upper Little Sioux Basin, including 5.01 inches at Lake Park, 4.85 inches 4 miles northwest of Milford and 4.69 inches in Spirit Lake.  The river rose back above flood stage on May 9 and crested in moderate flood stage (2.7 feet above flood stage) on May 14, inundating a large amount of pasture and crop land along the flood plain.  The river dropped below flood stage on May 20.