Moss Lake Water Level Today - 713.00 ft, 91.2% Full

Red River · Texas - updated daily from official gauges

Western Reservoir Conditions·Daily·No. 47·Tuesday, September 8, 2026·Latest reading September 8, 2026

• Moss Lake is 91.2% full - high on this site's capacity scale - as of September 8, 2026. Surface elevation 713.00 feet, storage 21,947 acre-feet (capacity basis 24,058 acre-feet), per Texas Water Development Board data.
• That elevation is 4.82 feet above its record low of 708.18 ft (February 3, 2004), in a daily record going back to October 1, 2000 (TWDB's period of record for this reservoir).
• Storage is 98% of the September 8 average across 26 years of record.
• Moss Lake is falling: elevation changed -0.15 ft over the past week, -0.84 ft over the past month, and -0.75 ft over the past year, per Texas Water Development Board data.

Moss Lake is holding near the top of its operating range at 91.2% of capacity, -0.75 ft over the past twelve months.

Moss Lake operating range

Moss Lake is operated within a narrow band rather than drawn down and refilled over years. As of September 8, 2026 it sits 2.00 feet below its 715.0 ft full-pool reference. Over the past two years the daily record ranges from 711.92 ft (November 1, 2024) to 716.81 ft (April 20, 2025) - a band of 4.89 feet. The highest reading in the full record is 726.80 ft on June 18, 2015.

Storage above the full-pool reference is flood control space, not supply. A reservoir reading at or near 100% of its conservation capacity is being operated normally - it is not a surplus, and the operator may release water to hold that space.

Moss Lake storage in context

Moss Lake water level, past 12 months

91.2% full at the latest reading - across the past 12 months it ranged from 88.2% (January 23, 2026) to 99.9% (June 23, 2026). Percent full is storage against the 24,058-acre-foot capacity basis, not a share of the elevation plotted above.

Moss Lake elevation, full record

91.2% full at the latest reading - across the storage record since October 1, 2000 it ranged from 72.0% (February 3, 2004) to 100.0% (June 20, 2025). Percent full is storage against the 24,058-acre-foot capacity basis, not a share of the elevation plotted above. Every percentage here is measured against today's capacity basis; a reservoir's surveyed capacity changes as sediment accumulates behind the dam, so early-record percentages are indicative rather than exact.

Last 14 daily readings

Frequently asked questions

What is the water level of Moss Lake today?

As of September 8, 2026, Moss Lake's surface elevation is 713.00 feet, with 21,947 acre-feet in storage - 91.2% of the 24,058 acre-foot capacity basis. Source: Water Data for Texas (TWDB) daily data.

How full is Moss Lake?

Moss Lake is 91.2% full as of September 8, 2026. Its storage is 98% of the September 8 average across its record since 2000. Source: Water Data for Texas (TWDB) daily data.

When was Moss Lake last full?

Moss Lake was last at or above 95% of its 24,058 acre-foot capacity basis on August 7, 2026. As of September 8, 2026 it is 91.2% full. Source: Water Data for Texas (TWDB) daily data.

Is Moss Lake rising or falling?

Moss Lake is falling: its elevation changed -0.15 feet over the week ending September 8, 2026, -0.84 ft over the past month, and -0.75 feet over the past year. Source: Water Data for Texas (TWDB) daily data.

What was Moss Lake's lowest water level on record?

Moss Lake's lowest surface elevation in the daily record since October 1, 2000 was 708.18 feet on February 3, 2004, per the daily record used by this site. As of September 8, 2026 the reservoir is 4.82 feet above that record low.

About this gauge

Moss Lake is a Texas water-supply reservoir in the Red River basin. Water Data for Texas publishes a conservation pool elevation of 715.0 ft and a conservation capacity of 24,058 acre-feet, with daily water level and storage recorded since 2000-10-01.

Operator

Texas Water Development Board (Water Data for Texas)

Station

hubert-h-moss

Measurements

Daily water level and conservation storage

River

Red River

State

Texas

Full pool reference

715.0 ft

Capacity basis

24,058 acre-feet (Water Data for Texas (TWDB) conservation capacity)

Period of record

October 1, 2000 (TWDB's period of record for this reservoir)

Status

Provisional - subject to revision by the reporting agency

Update cadence

Daily

TWDB reports conservation storage against a conservation capacity that is restated as new volumetric surveys are completed, so a percent-full figure here can change without the water level changing. TWDB's methodology page is linked in the notes below.

Download the daily CSV (date, elevation ft, storage AF) or see all data downloads.

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