South Branch Au Sable River Near Luzerne, MI

USGS Site No: 04135700 • South Branch Au Sable River • Crawford County, MI

South Branch Au Sable River Near Luzerne, MI on the South Branch Au Sable River is currently at 271 cfs (High — 79th percentile for this date) . Gage height: 5.14 ft.

Reading from

271
CFS Discharge
5.14
Gage Height (ft)
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 125
25th Low threshold 162
50th (Median) Normal (median) 202
75th High threshold 247
95th Very High threshold 371 Today: 271 cfs

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.

1.6k 783 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 278 —
May 28, 2026 295 —
May 27, 2026 311 —
May 26, 2026 322 —
May 25, 2026 334 —
May 24, 2026 342 —
May 23, 2026 367 —
May 22, 2026 404 —
May 21, 2026 422 —
May 20, 2026 410 —
May 19, 2026 380 —
May 18, 2026 334 —
May 17, 2026 327 —
May 16, 2026 337 —
May 15, 2026 342 —
Apr 21, 2026 808 —
Apr 20, 2026 898 —
Apr 19, 2026 1,000 —
Apr 18, 2026 1,120 —
Apr 17, 2026 1,240 —
Apr 16, 2026 1,370 —
Apr 15, 2026 1,450 —
Apr 14, 2026 1,370 —
Apr 13, 2026 1,170 —
Apr 12, 2026 727 —
Apr 11, 2026 509 —
Apr 10, 2026 514 —
Apr 9, 2026 520 —
Apr 8, 2026 565 —
Apr 7, 2026 622 —

Station Information

USGS Site No
04135700
State
MI
County
Crawford County
Coordinates
44.6147, -84.4556
Drainage Area
401 mi²
Datum (ft)
1,059.3
HUC Code
04070007
View on USGS NWIS →

Recent Extremes

Max discharge
1,450 cfs
Apr 15, 2026
Min discharge
92 cfs
Sep 17, 2025

Computed from the local daily-values archive.

Nearby Gauges

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