WHAT'S HAPPENING NOW
—— ft above typical
Finding the top signal on the water…
Live river level, flow, historical records and forecast for Blackstone River at Northbridge in MA, United States, built from official government gauge data.
Blackstone River in the Blackstone River watershed, Massachusetts.
At Northbridge, the Blackstone drains an upstream area of 141 sq mi (365 km2). That is the piece of the river that sets the stage for this gauge, and it is the scale that matters when rain or snowmelt is spread across the basin.
In New England, the broad pattern is spring snowmelt and rain freshet, with coastal storms and tropical remnants driving the larger floods and summer bringing lower flows. On the Blackstone, that seasonal rhythm shows up clearly enough to shape day-to-day use. A dock, intake, or fishing spot that is comfortable in late summer may need more room in the freshet months.
The record high at this station is 11.49 ft (3.5 m), set in October 2005. The record low is 2.06 ft (0.63 m), set in August 2010. Those two marks frame the range this reach has shown over the record and give a sense of how much the river can move between dry periods and major runoff.
The typical highest month is April, at 4.19 ft (1.28 m). The typical lowest month is September, at 3.2 ft (0.98 m). The typical annual swing is 11.9 in (30.2 cm). For someone using the river, that means the seasonal change is not just a graph line; it is the difference between a higher spring stage and a lower late-summer stage that can affect clearance, access, and where fish and bait collect.
This USGS station has 50 years on record, so the hero number is best read against the median for the same calendar day, not as a stand-alone stage. That comparison tells you whether the river is running above or below its usual level for this date.
Raw elevation can be misleading on its own. A stage that looks ordinary may be high for the season, while a number that seems low may still be near the middle of the long record. The calendar-day median gives the clearer read for daily use on the Blackstone.
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.
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.
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.
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.
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.
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.
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.
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