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.
Tyee Lake Outlet near Wrangell AK Water Level
Live river level, flow, historical records and forecast for Tyee Lake Outlet near Wrangell AK in AK, United States, built from official government gauge data.
- Location AK, United States
- Watershed bradfield canal
- Primary gauge 15019990 (USGS)
About Tyee Lake Outlet near Wrangell AK
Tyee Lake Outlet - A vital link from Tyee Lake to the Bradfield Canal.
The Tyee Lake Outlet is an essential stream that connects Tyee Lake to the Bradfield Canal near Wrangell, Alaska. This river plays a significant role within its subarctic environment, driven by seasonal variations in water flow that reflect the unique climatic characteristics of the region.
Why the data matters here
Currently, the water level is measured by the U.S. Geological Survey (USGS) at this station. While no discharge measurements are recorded, the gauge provides important insights into water levels, which are influenced by the spring breakup and snowmelt typical to Alaskan subarctic hydrology. This seasonal rhythm sees peak flows occurring in mid-to-late summer, primarily due to glacier-fed inputs, while deep winter flows are significantly lower.
Today’s reading can be contextualized by comparing it to the median level for this calendar day, taken from over 47 years of historical data. This approach helps to clarify the significance of the current water level, highlighting trends and changes in the hydrology not captured by raw elevation figures alone. Understanding these levels and their historical patterns is vital for assessing water availability and managing the flow within the broader watershed of Bradfield Canal.
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
