Fall River near Ashton ID Water Level
Live river level, flow, historical records and forecast for Fall River near Ashton ID in ID, United States, built from official government gauge data.
- Location ID, United States
- Watershed lower henrys
- Primary gauge 13047600 (USGS)
About Fall River near Ashton ID
The watershed
The Fall River near Ashton is in the Lower Henrys watershed in Idaho.
This station drains 337 square miles (873 km2) upstream of the gauge, so the reading reflects what is happening on that reach and in the land above it. For people who live along the river, that matters more than a map label: the gauge responds to runoff, snowmelt, and late-season drawdown in the basin above it.
What the numbers say
The record high here is 9.48 ft (2.89 m), set in June 2011. The record low is 0 ft (0 m), set in November 2008.
The seasonal pattern is fairly clear. Typical high water arrives in May at 5.93 ft (1.81 m), then the river tends to ease down to a typical low in March at 4.11 ft (1.25 m). That typical annual swing is 21.9 in (55.6 cm), which is the range docks, intakes, and shallow crossings have to live with from year to year.
For anglers, that May-to-March spread is a useful signal: spring water levels are usually the most dependable for access, while late-winter and late-summer conditions can be lower and more sensitive to day-to-day weather. For cottagers and irrigators, the record high and record low show that the river has reached both ends of the range in the station record, so fixed structures should be set with some margin.
Reading the hero number
The hero number on this page is today’s reading set against the median for this calendar day across the station record. That is more useful than raw elevation because it tells you whether the river is running above or below its usual level for this date, not just how high it is in absolute terms.
This station has more than 33 years on record, and the data come from the USGS.
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
Nibi Metrics - live water levels, flow, and forecasts for lakes and rivers across Canada, the US and the UK
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada, the US and the UK. Built on official government data.
Nibi Metrics tracks more than 13,000 gauged lakes and rivers across Canada, the United States and the United Kingdom, reading directly from official federal monitoring networks: the Water Survey of Canada, the United States Geological Survey, Quebec's provincial hydrometric network, and the Environment Agency for England. Every number on the platform is measured, not modelled - taken from a government gauge on the water itself and compared against that location's own historical record for this exact date.
What you can see for any monitored lake or river
The level right now, in feet or metres, updated as the source agency publishes new readings - for many stations that is every five to fifteen minutes. How today compares to typical: every location carries its own typical-for-this-date band built from its historical record, so a reading is never just a number - it is above, below, or near what this water usually does on this calendar day. Which way it is moving: a measured RISING, FALLING, or STEADY verdict computed from the gauge's own recent readings, with the rate of change - the difference between a flood ending and one beginning. What comes next: level forecasts up to 72 hours ahead, driven by the gauge's recent behaviour, upstream water, and quantitative precipitation forecasts, alongside live radar, lightning, and weather for the surrounding region.
Alerts that watch the water for you
Set a threshold on any location - a level, a distance above typical, or a rate of climb - and Nibi emails or notifies you the moment the gauge crosses it. Cottagers use it for spring freshet, anglers for river conditions, marinas and municipalities for operations. The scanning runs around the clock against the same measured data shown on every page.
Where Nibi comes from
Nibi means water in Anishinaabemowin. The platform began at a family cottage on Lake Muskoka, Ontario, where the spring melt floods the shoreline most years and the only forecast was standing on the dock, looking, and guessing. It grew into an independent, member-funded platform run by Muskoka Research Inc. - no investors, no data resale, and a privacy policy shorter than most cookie banners. The core data is free for everyone, forever; paid plans add automation like multi-location alerts, deep history, and reports.
Coverage
Nibi spans the continent: every Canadian province and territory with active federal gauges - from Vancouver Island rivers to the Muskoka lakes, prairie reservoirs, and Quebec's hydrometric network - and the United States from Maine to the Texas Hill Country, the Ohio Valley, and the Pacific Northwest. Coverage grows where the water news is: when a basin floods, its gauges join the platform with their full historical records attached. Many stations report every five to fifteen minutes; most report at least hourly; every page states exactly when its gauge last spoke.
Free forever, funded by members
The core promise is simple: the water data is free, for everyone, forever. Live levels, maps, radar, and recent history never sit behind a paywall. Paid plans fund the platform by adding automation - multi-location alerts, decades of history, longer forecasts, and PDF reports - so the people who need more carry the cost for everyone who just needs to check the lake before driving up. There are no investors and no advertising deals shaping what the data says.
Water Stories
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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.
How every number is computed - About the platform
