Select a state from the map to access real-time data.
The colored dots on this map depict streamflow conditions
as a percentile, which is computed from the period of record for the current
day of the year. Only stations with at least 30 years of record are used.
The gray circles indicate other stations that were not
ranked in percentiles either because they have fewer than 30 years of
record or because they report parameters other than streamflow. Some stations,
for example, measure stage only.
This image courtesy of the USGS and
is not subject to copyright protection.
Please read their disclaimer.
