Glossary

cfs

Cubic feet per second: the volume of water passing the gauge each second.

Gage height

The height of the water surface above a fixed reference at the gauge, in feet. USGS spells it gage.

Percentile for date

Where the current flow falls among the gauge's published daily percentiles for the same calendar date. Our estimate, interpolated between the USGS percentiles (5th, 10th, 20th, 25th, 50th, 75th, 80th, 90th, 95th).

Median for date

The 50th percentile of flow for the calendar date over the gauge's record.

Provisional

A USGS reading that has not yet been reviewed and may change.

Daily mean flow

The average of the readings on one gauge-local date. Days with fewer than 80% of expected readings are marked partial.

Drainage area

The land area, in square miles, that drains to the gauge.

Forecast point

A location where the National Weather Service publishes river stage and flow forecasts and flood stages.

Model guidance

Output of the NOAA National Water Model for the river reach. It is not an official forecast and not a measurement.

Gauge-local time

Times are shown in the time zone of the gauge, with the zone abbreviation.