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Little Sioux River at Linn Grove
Critical Stages
14' - Action
16.5' - Flood
20' - Moderate
22.5' - Major
Latest Observation
Updated: 6:00 PM CST 12/15/25
Status: No Flooding
Stage: 5.68 ft
Flow: 0.253 kcfs
Forecast
Forecast not available for this location.
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 6:00 PM 12/15 | 5.68 | 0.253 |
| 5:45 PM 12/15 | 5.67 | 0.252 |
| 5:30 PM 12/15 | 5.67 | 0.252 |
| 5:15 PM 12/15 | 5.67 | 0.252 |
| 5:00 PM 12/15 | 5.67 | 0.252 |
| 4:45 PM 12/15 | 5.67 | 0.252 |
| 4:30 PM 12/15 | 5.67 | 0.252 |
| 4:15 PM 12/15 | 5.68 | 0.253 |
| 4:00 PM 12/15 | 5.67 | 0.252 |
| 3:45 PM 12/15 | 5.68 | 0.253 |
| 3:30 PM 12/15 | 5.67 | 0.252 |
| 3:15 PM 12/15 | 5.67 | 0.252 |
| 3:00 PM 12/15 | 5.68 | 0.253 |
| 2:45 PM 12/15 | 5.67 | 0.252 |
| 2:30 PM 12/15 | 5.67 | 0.252 |
| 2:15 PM 12/15 | 5.68 | 0.253 |
| 2:00 PM 12/15 | 5.68 | 0.253 |
| 1:45 PM 12/15 | 5.68 | 0.253 |
| 1:30 PM 12/15 | 5.68 | 0.253 |
| 1:15 PM 12/15 | 5.68 | 0.253 |
| 1:00 PM 12/15 | 5.68 | 0.253 |
| 12:45 PM 12/15 | 5.68 | 0.253 |
| 12:30 PM 12/15 | 5.69 | 0.254 |
| 12:15 PM 12/15 | 5.68 | 0.253 |
| 12:00 PM 12/15 | 5.69 | 0.254 |
| 11:45 AM 12/15 | 5.69 | 0.254 |
| 11:30 AM 12/15 | 5.69 | 0.254 |
| 11:15 AM 12/15 | 5.69 | 0.254 |
| 11:00 AM 12/15 | 5.69 | 0.254 |
| 10:45 AM 12/15 | 5.68 | 0.253 |
31.5' -
Weaver St is flooded in Linn Grove.
29' -
Significant flooding is ongoing in Sioux Rapids as water reaches as far in as 2nd and Main St. Water also reaches the bottom of the bridge on Weaver St in Linn Grove.
28' -
Highway 71 south of the bridge in Sioux Rapids is flooded and at least one house in Linn Grove near the campground may flood.
27' -
The bathroom at the campground in Linn Grove floods.
24' -
Some businesses west of Hwy 71 in Sioux Rapids are in danger of flooding. The low portion of Highway 71 north of the bridge in Sioux Rapids may begin to flood.
22.5' -
Park St, as well as the northern portion of 1st St in Sioux Rapids begin to flood.
21' -
The lowest campsites at the campground in Linn Grove begin to flood.
20' -
Significant flooding of agricultural land begins along this entire stretch of the river. Water begins to flood the lower road at the campground in Linn Grove.
16.5' -
More substantial flooding of agricultural land as well as the park in Sioux Rapids begins
14' -
Water begins to overtop the lowest banks as well as spill in the lowest areas of the park in Sioux Rapids.
| Date | Stage (ft) |
|---|---|
| Jun 23, 2024 | 29.98 |
| Mar 16, 2019 | 24.13 |
| Sep 22, 2018 | 23.91 |
| Jun 18, 2014 | 22.91 |
| Mar 17, 2010 | 22.85 |
| Jul 17, 2011 | 22.57 |
| Apr 7, 1965 | 22.25 |
| Mar 16, 2007 | 21.3 |
| Sep 19, 2004 | 20.94 |
| Jul 2, 1993 | 20.63 |
| May 2, 2016 | 20.18 |
| Jun 18, 2001 | 19.88 |
| Apr 5, 2006 | 19.72 |
| Jun 17, 1984 | 19.58 |
| May 17, 2005 | 19.27 |
| Jun 15, 2008 | 19.09 |
| May 30, 2013 | 19.03 |
| May 25, 2017 | 18.92 |
| Jul 12, 1982 | 18.4 |
| Jun 2, 2012 | 18.35 |
Data provided by the National Weather Service.
