South Fork Malheur River near Riverside, OR

USGS Site No: 13215480 • South Fork Malheur River • Malheur County, OR

South Fork Malheur River near Riverside, OR on the South Fork Malheur River is currently at 13 cfs (Very High — 42th percentile for this date) . Gage height: 6.55 ft.

Reading from

13
CFS Discharge
6.55
Gage Height (ft)
Very High
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 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 0
25th Low threshold 0
50th (Median) Normal (median) 18 Today: 13 cfs
75th High threshold 0
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.

151 76 0 cfs Apr 7 May 29
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 29, 2026 14 —
May 28, 2026 12 —
May 27, 2026 9 —
May 26, 2026 7 —
May 25, 2026 8 —
May 24, 2026 8 —
May 23, 2026 7 —
May 22, 2026 8 —
May 21, 2026 8 —
May 20, 2026 9 —
May 19, 2026 7 —
May 18, 2026 7 —
May 17, 2026 7 —
May 16, 2026 6 —
May 15, 2026 5 —
Apr 21, 2026 38 —
Apr 20, 2026 41 —
Apr 19, 2026 49 —
Apr 18, 2026 65 —
Apr 17, 2026 100 —
Apr 16, 2026 84 —
Apr 15, 2026 52 —
Apr 14, 2026 54 —
Apr 13, 2026 32 —
Apr 12, 2026 25 —
Apr 11, 2026 25 —
Apr 10, 2026 19 —
Apr 9, 2026 19 —
Apr 8, 2026 20 —
Apr 7, 2026 21 —

Station Information

USGS Site No
13215480
State
OR
County
Malheur County
Coordinates
43.5191, -118.1751
Drainage Area
697 mi²
Datum (ft)
3,309.7
HUC Code
17050116
View on USGS NWIS →

Recent Extremes

Max discharge
124 cfs
Feb 26, 2026
Min discharge
1 cfs
Jul 11, 2025

Computed from the local daily-values archive.

Nearby Gauges

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