Snake River Above Reservoir, Near Alpine, WY

USGS Site No: 13022500 • Snake River • Lincoln County, WY

Snake River Above Reservoir, Near Alpine, WY on the Snake River is currently at 13,400 cfs (Very High — 133th percentile for this date) . Gage height: 7.64 ft.

Reading from

13,400
CFS Discharge
7.64
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 1,440
25th Low threshold 1,660
50th (Median) Normal (median) 1,890
75th High threshold 2,160
95th Very High threshold 2,820

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.

22k 11k 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 11,700 —
May 27, 2026 10,500 —
May 26, 2026 9,590 —
May 25, 2026 8,900 —
May 24, 2026 8,460 —
May 23, 2026 8,450 —
May 22, 2026 8,820 —
May 21, 2026 8,240 —
May 20, 2026 7,570 —
May 19, 2026 7,420 —
May 18, 2026 7,920 —
May 17, 2026 9,010 —
May 16, 2026 10,200 —
May 15, 2026 11,300 —
Apr 20, 2026 3,200 —
Apr 19, 2026 3,250 —
Apr 18, 2026 3,410 —
Apr 17, 2026 3,650 —
Apr 16, 2026 3,870 —
Apr 15, 2026 4,070 —
Apr 14, 2026 4,440 —
Apr 13, 2026 4,700 —
Apr 12, 2026 4,690 —
Apr 11, 2026 4,510 —
Apr 10, 2026 4,210 —
Apr 9, 2026 3,910 —
Apr 8, 2026 3,630 —
Apr 7, 2026 3,420 —
Apr 6, 2026 3,370 —
Apr 5, 2026 3,480 —

Station Information

USGS Site No
13022500
State
WY
Coordinates
43.1961, -110.8894
Drainage Area
3,465 mi²
Datum (ft)
5,717.0
HUC Code
17040103
View on USGS NWIS →

Recent Extremes

Max discharge
17,200 cfs
Jun 2, 2025
Min discharge
1,150 cfs
Feb 22, 2026

Computed from the local daily-values archive.

Nearby Gauges