Sf Trinity River below Hyampom CA

USGS Site No: 11528700 • Sf Trinity River • Trinity County, CA

Sf Trinity River below Hyampom CA on the Sf Trinity River is currently at 391 cfs (High — 84th percentile for this date) . Gage height: 3.53 ft.

Reading from

↑ Upstream on Sf Trinity River
Sf Trinity River at Forest Glen CA
391
CFS Discharge
3.53
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 44
25th Low threshold 75
50th (Median) Normal (median) 103
75th High threshold 164
95th Very High threshold 643 Today: 391 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.

7.2k 3.6k 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 397 —
May 27, 2026 375 —
May 26, 2026 364 —
May 25, 2026 369 —
May 24, 2026 378 —
May 23, 2026 381 —
May 22, 2026 389 —
May 21, 2026 398 —
May 20, 2026 407 —
May 19, 2026 415 —
May 18, 2026 425 —
May 17, 2026 432 —
May 16, 2026 436 —
May 15, 2026 444 —
Apr 20, 2026 772 —
Apr 19, 2026 696 —
Apr 18, 2026 746 —
Apr 17, 2026 817 —
Apr 16, 2026 916 —
Apr 15, 2026 1,020 —
Apr 14, 2026 1,160 —
Apr 13, 2026 1,340 —
Apr 12, 2026 1,110 —
Apr 11, 2026 750 —
Apr 10, 2026 704 —
Apr 9, 2026 569 —
Apr 8, 2026 514 —
Apr 7, 2026 528 —
Apr 6, 2026 548 —
Apr 5, 2026 571 —

Station Information

USGS Site No
11528700
State
CA
County
Trinity County
Coordinates
40.6498, -123.4942
Drainage Area
764 mi²
Datum (ft)
1,212.0
HUC Code
18010212
View on USGS NWIS →

Recent Extremes

Max discharge
17,400 cfs
Feb 25, 2026
Min discharge
82 cfs
Sep 6, 2025

Computed from the local daily-values archive.

Nearby Gauges

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