A couple of strong late season winter storms brought a mix of additional heavy snowfall and heavy rainfall to northwest Iowa after April 8.  River levels already high from earlier melt and rainfall quickly returned to flood, with many continuing in flood through the end of the month.

Flood in BUENA VISTA, IOWA
From 17-APR-18 08:00:00 to 30-APR-18 23:59:00 (CST-6)
Location: SIOUX RAPIDS
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding returned to the Little Sioux River in mid-April, and was generally minor with impacts limited to near river agricultural areas. Periodic rain and snow brought 1 to 3 inches of liquid equivalent in the week prior to a return to flood stage at Linn Grove (gage site LNNI4) on April 17. The river crested in moderate flood stage (1.5 feet above flood stage) on April 26, inundating a large amount of pasture and crop land along the flood plain as well as the city park in Sioux Rapids. The river remained in moderate flood stage at the end of the month.

Flood in DICKINSON, IOWA
From 14-APR-18 04:00:00 to 30-APR-18 23:59:00 (CST-6)
Location: MONTGOMERY
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding returned to the Little Sioux River in mid-April, and was generally minor with impacts limited to near river agricultural areas. Periodic rain and snow brought 1 to 3 inches of liquid equivalent in the week prior to a return to flood stage near Milford (gage site MIFI4) on April 14.  The river crested in minor flood stage (0.8 feet above flood stage) on April 16, before briefly dropping below flood stage on April 19. The river returned quickly above flood stage on April 20 and crested in moderate flood stage 2.8 feet above flood stage on April 26, inundating a large amount of pasture and crop land along the flood plain.  The river remained in minor flood stage at the end of the month.

Flood in CLAY, IOWA
From 14-APR-18 04:00:00 to 30-APR-18 23:59:00 (CST-6)
Location: PETERSON
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding returned to the Little Sioux River in mid-April, and was generally minor with impacts limited to near river agricultural areas. Periodic rain and snow brought 1 to 3 inches of liquid equivalent in the week prior to a return to flood stage near Milford (gage site MIFI4) on April 14.  The river crested in minor flood stage (0.8 feet above flood stage) on April 16, before briefly dropping below flood stage on April 19. The river returned quickly above flood stage on April 20 and crested in moderate flood stage 2.8 feet above flood stage on April 26, inundating a large amount of pasture and crop land along the flood plain.  The river remained in minor flood stage at the end of the month.

Flood in CLAY, IOWA
From 14-APR-18 00:00:00 to 30-APR-18 23:59:00 (CST-6)
Location: SPENCER
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding returned to the Little Sioux River in mid-April, and was generally minor with impacts limited to near river agricultural areas. Periodic rain and snow brought 1 to 3 inches of liquid equivalent in the week prior to a return to flood stage at Spencer (gage site SPWI4) on April 14. The river crested in minor flood stage (3.2 feet above flood stage) on April 24, inundating a large amount of pasture and crop land along the flood plain as well as the city park in Spencer. The river remained in minor flood stage at the end of the month.

Flood in CLAY, IOWA
From 17-APR-18 08:00:00 to 30-APR-18 23:59:00 (CST-6)
Location: GREENVILLE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding returned to the Little Sioux River in mid-April, and was generally minor with impacts limited to near river agricultural areas. Periodic rain and snow brought 1 to 3 inches of liquid equivalent in the week prior to a return to flood stage at Linn Grove (gage site LNNI4) on April 17. The river crested in moderate flood stage (1.5 feet above flood stage) on April 26, inundating a large amount of pasture and crop land along the flood plain as well as the city park in Sioux Rapids. The river remained in moderate flood stage at the end of the month.

Flood in O'BRIEN, IOWA
From 17-APR-18 08:00:00 to 30-APR-18 23:59:00 (CST-6)
Location: SUTHERLAND
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding returned to the Little Sioux River in mid-April, and was generally minor with impacts limited to near river agricultural areas. Periodic rain and snow brought 1 to 3 inches of liquid equivalent in the week prior to a return to flood stage at Linn Grove (gage site LNNI4) on April 17. The river crested in moderate flood stage (1.5 feet above flood stage) on April 26, inundating a large amount of pasture and crop land along the flood plain as well as the city park in Sioux Rapids. The river remained in moderate flood stage at the end of the month.

Flood in CLAY, IOWA
From 15-APR-18 00:00:00 to 15-APR-18 22:00:00 (CST-6)
Location: LINN GROVE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding returned to the Little Sioux River and tributaries in mid-April, and was generally minor with impacts limited to near river agricultural areas. Periodic rain and snow brought 1 to 3 inches of liquid equivalent in the week prior to a return to flood stage on the Ocheyedan River near Spencer (gage site SPOI4) on April 15. The river crested in minor flood stage (0.7 feet above flood stage) on April 15, before quickly  dropping below flood stage.