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.
Water Stories
For five years, spring 2019 was the mark every Lake Muskoka decision answered to. In April 2026 the lake went two centimeters higher - and the official books have not caught up yet.
Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.
The science of snow water equivalent and why it drives the season ahead.
What the numbers on the measuring stick actually tell you.
Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.
One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.
LAHONTAN RES NR FALLON Water Level
Live lake level, flow, historical records and forecast for LAHONTAN RES NR FALLON in NV, United States, built from official government gauge data.
- Location NV, United States
- Watershed middle carson
- Primary gauge 10312100 (USGS)
About LAHONTAN RES NR FALLON
Lahontan Reservoir - An essential water body in the arid Great Basin.
Nestled in Nevada's arid region, Lahontan Reservoir serves as a crucial water source in the Middle Carson watershed. With its expansive coverage, the reservoir is vital for local agriculture, recreation, and wildlife, supporting a diverse array of ecosystems despite the surrounding desert landscape.
The watershed context
Lahontan Reservoir is located within the Middle Carson watershed, draining an area of roughly 1,799 square miles. This significant catchment feeds into the reservoir primarily through seasonal mountain snowmelt, creating a spring runoff peak that replenishes water levels after the dry winter months. While summer thunderstorms can cause localized flash floods, the reservoir plays a stabilizing role in maintaining water availability during Nevada's arid summers, characterized by natural evaporation and reduced inflow.
The reservoir also observes varying conditions compared to its peers, such as the Carson River above Sixmile Canyon Creek and the Carson River near Fort Churchill. Each water body in this watershed is interconnected, sharing seasonal patterns influenced by both snowfall and potential storm events.
Why the data matters here
Today's reading from Lahontan Reservoir, sourced from the U.S. Geological Survey (USGS), provides important insights into local hydrology when compared against the historical median for this calendar day over the last 13 years. Evaluating current water levels against this median is crucial for understanding the seasonal trends and potential impacts on ecosystem health, agricultural planning, and water resource management in the region. This approach is particularly relevant in the Great Basin's unique hydrological context, where each measure can inform flood risk assessments and overall water availability.
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
