487.57 ft
FallingPartly Cloudy · 4.7 mph SE
Good
Best window: 7:00 PM–8:00 PM
Level Oct 26 · Weather 36 minutes ago · Rockwall Municipal Airport
Lavon Lake is managed by U.S. Army Corps of Engineers. Lake Insights displays its latest available elevation from Texas Water Development Board. Published reference elevations are listed below.
4.43 feet below full pool
−4.43 ft vs full pool
Lavon Lake is currently 4.43 feet below full pool and has fallen slightly over the past week. The lake remains below full pool; 30-day change down 0.06 ft.
Collin County, TX · U.S. Drought Monitor county statistics at the lake location (not a lake-specific designation)
Moderate Drought
The largest share of Collin County, TX is in Moderate Drought (D1), an official USDM drought category. These figures describe the surrounding county from the lake location, not the lake itself.
Severity
Weekly trend
Improving
Compared with last week
Official drought (D1–D4)
Yes
100% of the surrounding county is in official drought categories (D1–D4). Dominant category remains Moderate Drought.
Typical county impacts (USDM guidance)
U.S. Drought Monitor · map date Oct 20, 2026. Updated weekly. Official drought means U.S. Drought Monitor categories D1–D4 (Moderate through Exceptional). Abnormally Dry (D0) is not counted as official drought. droughtmonitor.unl.eduView drought map for Collin County, TX
General factors for reservoirs like this
These are common influences for this type of lake. They do not identify the cause of a specific current change unless an operator update confirms it.
Rainfall & inflows
Rain and upstream river inflows can raise reservoir levels, especially after storms.
Downstream releases
When an operator releases water through a dam, reservoir storage can fall and downstream flows can rise.
Published reference elevation. Not necessarily a fixed year-round target for every project.
Flood stage is not interchangeable with flood pool.
Managing authority: U.S. Army Corps of Engineers
Observation source used by Lake Insights: Texas Water Development Board
Who manages the lake and who publishes the reading Lake Insights displays can differ. Lake Insights does not invent a source label from the managing authority alone.
Shared background — not lake-specific facts
Lake Insights aggregates water level information from authoritative public sources such as the U.S. Army Corps of Engineers, NOAA, TVA, Bureau of Reclamation, power utilities, and other official lake operators. We preserve historical observations, calculate trends, and present lake conditions in a consistent format. For Texas Water Development Board, we link to the official source whenever it is available. Lake Insights does not predict future lake levels unless an official forecast has been published by the managing authority.
Flood stage
Datum
Current-level source
Flood-risk operations
Some projects store or release water under flood-risk rules when conditions require it.
Water supply
Some reservoirs support municipal, industrial, irrigation, or regional water-supply needs.
Hydropower
Hydropower projects may pass water through turbines when generating electricity.
Seasonal weather
Dry periods, heat, evaporation, and seasonal rainfall patterns can affect storage over weeks and months.