How high is the Tuolumne River above Early Intake near Mather CA right now?

The Tuolumne River above Early Intake near Mather CA is currently flowing at 418 cubic feet per second with a gage height of 13.81 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Tuolumne River above Early Intake near Mather CA normal for this time of year?

Current flow is classified as very high for October 28. Today's discharge is at the 125th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Tuolumne River above Early Intake near Mather CA on October 28?

The long-term median discharge for this date is 58 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 39 to 105 cfs.

Where is the Tuolumne River above Early Intake near Mather CA stream gauge located?

The Tuolumne River above Early Intake near Mather CA stream gauge is operated by the USGS in Tuolumne County, CA on the Tuolumne River. USGS site number 11276600 (coordinates 37.8794, -119.9471).

Tuolumne River above Early Intake near Mather CA

USGS Site No: 11276600 • Tuolumne River • Tuolumne County, CA

Tuolumne River above Early Intake near Mather CA on the Tuolumne River is currently at 418 cfs (Very High — 125th percentile for this date) . Gage height: 13.81 ft.

Reading from 4 months ago

↑ Upstream on Tuolumne River

Tuolumne River near Hetch Hetchy CA

Downstream on Tuolumne River ↓

Tuolumne River below Early Intake near Mather CA

418

CFS Discharge

13.81

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
10th	Very Low threshold	39
25th	Low threshold	41
50th (Median)	Normal (median)	58
75th	High threshold	68
95th	Very High threshold	105

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.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	599	—
May 27, 2026	877	—
May 26, 2026	1,020	—
May 25, 2026	1,040	—
May 24, 2026	981	—
May 23, 2026	837	—
May 22, 2026	540	—
May 21, 2026	305	—
May 20, 2026	414	—
May 19, 2026	675	—
May 18, 2026	1,110	—
May 17, 2026	1,420	—
May 16, 2026	1,430	—
May 15, 2026	1,320	—
Apr 20, 2026	353	—
Apr 19, 2026	303	—
Apr 18, 2026	304	—
Apr 17, 2026	306	—
Apr 16, 2026	306	—
Apr 15, 2026	314	—
Apr 14, 2026	331	—
Apr 13, 2026	356	—
Apr 12, 2026	391	—
Apr 11, 2026	303	—
Apr 10, 2026	261	—
Apr 9, 2026	245	—
Apr 8, 2026	244	—
Apr 7, 2026	246	—
Apr 6, 2026	325	—
Apr 5, 2026	359	—

Station Information

USGS Site No: 11276600
State: CA
County: Tuolumne County
Coordinates: 37.8794, -119.9471
Drainage Area: 484 mi²
Datum (ft): 2,405.5
HUC Code: 18040009

View on USGS NWIS →

Recent Extremes

Max discharge: 4,770 cfs

May 11, 2025
Min discharge: 37 cfs

Dec 14, 2025

Computed from the local daily-values archive.

Nearby Gauges

Tuolumne River below Early Intake near Mather CA
1.3 mi · 957 cfs

Very High
Cherry C near Early Intake CA
1.3 mi · 52 cfs

High
Cherry C below Valley Dam near Hetch Hetchy CA
6.3 mi · 7 cfs

Normal
Eleanor C near Hetch Hetchy CA
7.1 mi · 34 cfs

High
Tuolumne River near Hetch Hetchy CA
9.1 mi · 366 cfs

Very High