SNOFLO- Login
- Climate ►
- Recreation ►
- Tools ►
Total streamflow across the
Blackwater River
was last observed at
1,384
cfs, and is expected to yield approximately
2,745
acre-ft of water today; about 31%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
4,419 cfs,
with recent peaks last observed
on
2013-06-04 when daily discharge volume was observed at
22,386 cfs.
Maximum discharge along the river is currently at the
Blackwater River Near Franklin
reporting a streamflow rate of 719 cfs.
However, the streamgauge with the highest stage along the river is the
Blackwater River Near Dendron
with a gauge stage of 33.12 ft.
This river is monitored from 9 different streamgauging stations along the Blackwater River, the highest being situated at an altitude of 3,138 ft, the
Blackwater R Nr Davis.
| Last Updated | 2025-03-31 |
| Discharge Volume | 2,745 ACRE-FT |
| Streamflow |
1,384.0 cfs
-50.5 cfs (-3.52%) |
| Percent of Normal | 31.32% |
| Maximum |
22,386.0 cfs
2013-06-04 |
| Seasonal Avg | 4,419 cfs |
A blackwater river is a type of river with a slow-moving channel flowing through forested swamps or wetlands. As vegetation decays, tannins leach into the water, making a transparent, acidic water that is darkly stained, resembling tea. Most major blackwater rivers are in the Amazon Basin and the Southern United States. The term is used in fluvial studies, geology, geography, ecology, and biology. Not all dark rivers are blackwater in that technical sense. Some rivers in temperate regions, which drain or flow through areas of dark black loam, are simply black due to the color of the soil; these rivers are black mud rivers. There are also black mud estuaries.
Blackwater rivers are lower in nutrients than whitewater rivers and have ionic concentrations higher than rainwater. The unique conditions lead to flora and fauna that differ from both whitewater and clearwater rivers. The classification of Amazonian rivers into black, clear, and whitewater was first proposed by Alfred Russel Wallace in 1853 based on water colour, but the types were more clearly defined by chemistry and physics by Harald Sioli (de) from the 1950s to the 1980s. Although many Amazonian rivers fall clearly into one of these categories, others show a mix of characteristics and may vary depending on season and flood levels.
