Flatwillow Creek Near Mosby Mount

USGS Site No: 06130000 • Flatwillow Creek • Petroleum County, MT

Flatwillow Creek Near Mosby Mount on the Flatwillow Creek is currently at 9 cfs (Normal — 43th percentile for this date) . Gage height: 5.15 ft.

Reading from

9
CFS Discharge
5.15
Gage Height (ft)
Normal
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 27 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 2
50th (Median) Normal (median) 12 Today: 9 cfs
75th High threshold 55
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.

121 60 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 10 —
May 27, 2026 12 —
May 26, 2026 17 —
May 25, 2026 16 —
May 24, 2026 18 —
May 23, 2026 17 —
May 22, 2026 20 —
May 21, 2026 19 —
May 20, 2026 10 —
May 19, 2026 12 —
May 18, 2026 11 —
May 17, 2026 9 —
May 16, 2026 5 —
May 15, 2026 7 —
Apr 20, 2026 26 —
Apr 19, 2026 28 —
Apr 18, 2026 35 —
Apr 17, 2026 40 —
Apr 16, 2026 37 —
Apr 15, 2026 40 —
Apr 14, 2026 42 —
Apr 13, 2026 45 —
Apr 12, 2026 51 —
Apr 11, 2026 55 —
Apr 10, 2026 55 —
Apr 9, 2026 67 —
Apr 8, 2026 81 —
Apr 7, 2026 82 —
Apr 6, 2026 83 —
Apr 5, 2026 86 —

Station Information

USGS Site No
06130000
State
MT
County
Petroleum County
Coordinates
46.9287, -107.9328
Drainage Area
1,855 mi²
Datum (ft)
2,563.0
HUC Code
10040203
View on USGS NWIS →

Recent Extremes

Max discharge
244 cfs
Jun 14, 2025
Min discharge
1 cfs
Jul 16, 2025

Computed from the local daily-values archive.

Nearby Gauges

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