Lostmans River Below Second Bay, FL

USGS Site No: 02290918 • Lostmans River • Monroe County, FL

Lostmans River Below Second Bay, FL on the Lostmans River is currently at 13,800 cfs (Very High — 133th percentile for this date) . Gage height: -1.06 ft.

Reading from

13,800
CFS Discharge
-1.06
Gage Height (ft)
Very High
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 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 -1,360
25th Low threshold -469
50th (Median) Normal (median) 478
75th High threshold 1,780
95th Very High threshold 2,890

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.

4.1k 2k 0 cfs Apr 4 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 -175 —
May 27, 2026 -358 —
May 26, 2026 3 —
May 25, 2026 36 —
May 24, 2026 574 —
May 23, 2026 206 —
May 22, 2026 -593 —
May 21, 2026 -365 —
May 20, 2026 -1,360 —
May 19, 2026 -137 —
May 18, 2026 -106 —
May 17, 2026 200 —
May 16, 2026 682 —
May 15, 2026 751 —
Apr 21, 2026 3,480 —
Apr 20, 2026 -1,040 —
Apr 19, 2026 -1,850 —
Apr 18, 2026 -1,620 —
Apr 17, 2026 -766 —
Apr 16, 2026 -1,410 —
Apr 15, 2026 -1,080 —
Apr 14, 2026 -1,900 —
Apr 13, 2026 -296 —
Apr 12, 2026 -1,050 —
Apr 11, 2026 -1,180 —
Apr 10, 2026 -1,300 —
Apr 9, 2026 886 —
Apr 8, 2026 1 —
Apr 5, 2026 -1,540 —
Apr 4, 2026 -862 —

Station Information

USGS Site No
02290918
State
FL
County
Monroe County
Coordinates
25.5556, -81.1647
HUC Code
03090202
View on USGS NWIS →

Recent Extremes

Max discharge
3,910 cfs
Sep 12, 2025
Min discharge
-3,030 cfs
Nov 30, 2025

Computed from the local daily-values archive.

Nearby Gauges

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