Nibi Metrics
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada and the US. Built on official government data.
Nibi Metrics turns raw gauge readings from official hydrometric networks into something a person standing on a dock can actually use: is the water high or low for today, which way is it moving, and how unusual is this? This page explains where every number on the platform comes from and what we do to it along the way.
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Lyman Lake near ST. Johns Water Level
Live river level, flow, historical records and forecast for Lyman Lake near ST. Johns in AZ, United States, built from official government gauge data.
- Location AZ, United States
- Watershed little colorado headwaters
- Primary gauge 09384600 (USGS)
About Lyman Lake near ST. Johns
Lyman Lake - A vital reservoir in Arizona's high desert.
Nestled near St. Johns, Lyman Lake serves as a crucial water body in the Little Colorado Headwaters region. Spanning a watershed that captures rainfall and runoff from a substantial area, it stands as a notable feature amidst the arid landscape of Arizona. With a catchment area of approximately 790 square miles upstream of the station, Lyman Lake plays an essential role in managing the water flow to the Little Colorado River and contributes to the ecological health of the surrounding environment.
The watershed context
The watershed feeding Lyman Lake forms part of the Little Colorado River system, which is characterized by its seasonal variability. During summer, intense monsoon thunderstorms can lead to sudden and violent flash floods, drastically altering the water levels in local channels. In winter, melting snow from high elevations contributes to river flows, ensuring water availability for ecosystems and human use. However, between these events, many channels may run dry, emphasizing the unpredictable nature of waterflow in this region.
Lyman Lake itself supports the local ecosystem by acting as a reservoir, absorbing the surges from storm events and gradually releasing water during drier periods. It provides a precious resource for nearby communities, agriculture, and wildlife, drawing on the varying precipitation patterns typical of the Southwest.
Why the data matters here
Today’s monitoring of Lyman Lake operates under the auspices of the U.S. Geological Survey (USGS). Current readings provide important insights into the water levels in relation to historical data. Although specific data for today's figures are not available, understanding the lake's levels against the median for this calendar day across 42 years of records tells a more complete story than raw elevation alone. Tracking these metrics is essential not just for management and planning, but also for keeping the communities and ecosystems that rely on this vital water supply informed and prepared.
How this page is built
Readings come from official government gauges and are rolled into daily records: the daily mean, high and low for every day on record. Each calendar day gets its own baseline from the full history, so the level you see is compared against what this specific date usually looks like rather than an annual average.
How Nibi Metrics works · Water stories
