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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San Pedro at Lewis Springs Water Level
Live river level, flow, historical records and forecast for San Pedro at Lewis Springs in AZ, United States, built from official government gauge data.
- Location AZ, United States
- Watershed upper san pedro
- Primary gauge 09470920 (USGS)
About San Pedro at Lewis Springs
San Pedro at Lewis Springs - a vital tributary in the arid landscape of Arizona.
The San Pedro River at Lewis Springs plays a crucial role in the ecology and water resources of the Upper San Pedro watershed. This river, monitored by the U.S. Geological Survey, is one of the key waterways in a region characterized by variable and often unpredictable hydrology. The watershed drains approximately 831 square miles, showcasing the vastness of the area that this river supports.
The Watershed Context
The Upper San Pedro watershed is shaped by the seasonal rhythms typical of the Arid Southwest. During the summer, monsoon thunderstorms can lead to rapid flash floods, dramatically altering the flow conditions of the river. In contrast, winter storms and snowmelt from the higher elevations contribute to larger river flows, creating a dynamic and ever-changing water system. Many channels within this watershed may run dry between these significant hydrological events, further highlighting the importance of the San Pedro River as a lifeline for the ecosystem and communities that depend on it.
Why the Data Matters Here
Today's reading at San Pedro at Lewis Springs provides valuable insight into the current water conditions compared to historical records. This measurement is particularly meaningful when viewed against the median for this calendar day over more than 31 years of data. Such comparisons allow us to understand better how current flow levels deviate from established norms, highlighting trends and potential issues within the watershed. Monitoring by the U.S. Geological Survey ensures that this vital information is available to cottagers, anglers, farmers, and flood-watchers, who rely on these insights to navigate the challenges of living in this unique and variable environment.
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
