North Platte Riv above Seminoe Reservoir, near Sinclair, WY

USGS Site No: 06630000 • North Platte River • Carbon County, WY

North Platte Riv above Seminoe Reservoir, near Sinclair, WY on the North Platte River is currently at 1,230 cfs (Very High — 100th percentile for this date) . Gage height: 4.20 ft.

Reading from

1,230
CFS Discharge
4.20
Gage Height (ft)
Very High
Flow Condition
Normal
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 243
25th Low threshold 300
50th (Median) Normal (median) 405
75th High threshold 565
95th Very High threshold 797

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.

8.9k 4.4k 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 1,110 —
May 27, 2026 1,100 —
May 26, 2026 1,110 —
May 25, 2026 1,200 —
May 24, 2026 1,360 —
May 23, 2026 1,510 —
May 22, 2026 1,830 —
May 21, 2026 1,910 —
May 20, 2026 1,750 —
May 19, 2026 1,490 —
May 18, 2026 1,310 —
May 17, 2026 975 —
May 16, 2026 956 —
May 15, 2026 888 —
Apr 20, 2026 584 —
Apr 19, 2026 573 —
Apr 18, 2026 630 —
Apr 17, 2026 649 —
Apr 16, 2026 665 —
Apr 15, 2026 678 —
Apr 14, 2026 699 —
Apr 13, 2026 702 —
Apr 12, 2026 649 —
Apr 11, 2026 632 —
Apr 10, 2026 632 —
Apr 9, 2026 661 —
Apr 8, 2026 746 —
Apr 7, 2026 800 —
Apr 6, 2026 785 —
Apr 5, 2026 869 —

Station Information

USGS Site No
06630000
State
WY
County
Carbon County
Coordinates
41.8722, -107.0576
Drainage Area
4,184 mi²
Datum (ft)
6,404.4
HUC Code
10180002
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
8.5 ft
Flood Stage
9.0 ft
Moderate Flood
10.0 ft
Major Flood
11.0 ft

Currently 4.80 ft below flood stage.

Recent Extremes

Max discharge
3,270 cfs
Jun 3, 2025
Min discharge
92 cfs
Aug 23, 2025
Days at flood stage
0

Computed from the local daily-values archive.