How high is the South Loup River at Arnold, Nebr. right now?

The South Loup River at Arnold, Nebr. is currently flowing at 18 cubic feet per second with a gage height of 4.25 feet, based on the most recent USGS instantaneous reading.

Is the flow on the South Loup River at Arnold, Nebr. normal for this time of year?

Current flow is classified as very low for June 11. Today's discharge is at the 9th percentile compared to the long-term historical record at this gauge.

Is the South Loup River at Arnold, Nebr. at flood stage?

No — the gage height is 3.75 feet below the NWS flood-stage threshold of 8.0 feet.

What is the historical median flow for the South Loup River at Arnold, Nebr. on June 11?

The long-term median discharge for this date is 36 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 20 to unavailable cfs.

Where is the South Loup River at Arnold, Nebr. stream gauge located?

The South Loup River at Arnold, Nebr. stream gauge is operated by the USGS in Custer County, NE on the South Loup River. USGS site number 06781600 (coordinates 41.4228, -100.2034).

South Loup River at Arnold, Nebr.

USGS Site No: 06781600 • South Loup River • Custer County, NE

South Loup River at Arnold, Nebr. on the South Loup River is currently at 18 cfs (Very Low — 9th percentile for this date) . Gage height: 4.25 ft.

Reading from 1 week ago

CFS Discharge

4.25

Gage Height (ft)

Very Low

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	20	Today: 18 cfs
25th	Low threshold	26
50th (Median)	Normal (median)	36
75th	High threshold	48
95th	Very High threshold	0

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	17	4.21
May 27, 2026	18	4.23
May 26, 2026	20	4.28
May 25, 2026	23	4.35
May 24, 2026	24	4.37
May 23, 2026	24	4.38
May 22, 2026	24	4.39
May 21, 2026	24	4.37
May 20, 2026	24	4.38
May 19, 2026	25	4.41
May 18, 2026	23	4.36
May 17, 2026	21	4.31
May 16, 2026	18	4.23
May 15, 2026	18	4.25
Apr 20, 2026	24	4.42
Apr 19, 2026	24	4.43
Apr 18, 2026	24	4.43
Apr 17, 2026	23	4.40
Apr 16, 2026	25	4.44
Apr 15, 2026	24	4.41
Apr 14, 2026	24	4.42
Apr 13, 2026	26	4.46
Apr 12, 2026	27	4.48
Apr 11, 2026	27	4.48
Apr 10, 2026	26	4.46
Apr 9, 2026	27	4.48
Apr 8, 2026	28	4.49
Apr 7, 2026	27	4.47
Apr 6, 2026	27	4.49
Apr 5, 2026	29	4.52

Station Information

USGS Site No: 06781600
State: NE
County: Custer County
Coordinates: 41.4228, -100.2034
Datum (ft): 2,686.2
HUC Code: 102100040110

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 8.0 ft
Flood Stage: 8.0 ft
Moderate Flood: 10.0 ft
Major Flood: 12.0 ft

Currently 3.75 ft below flood stage.

Recent Extremes

Max discharge: 80 cfs

Jun 26, 2025
Min discharge: 12 cfs

May 14, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Middle Loup River at Dunning, Nebr.
28.7 mi · 503 cfs

Normal
Dismal River Near Thedford, Nebr.
29.7 mi · 264 cfs

High
South Loup River at Pressey Wma Near Oconto, Nebr.
30.2 mi · 101 cfs

Low
Middle Loup River Near Gates, Nebr.
33.7 mi · 897 cfs

Low
North Loup River at Brewster, Nebr.
40.0 mi · 461 cfs

Normal