USGS WaterAlert

Real-time data parameters available for subscription

The basic real-time parameters supported by WaterAlert are the following:

Surface Water:	Groundwater:	Water Quality:	Precipitation:
Streamflow Gage height (stage) Lake/reservoir level Stream level Stream velocity	Water level (depth) Water Level (elevation)	Water temperature Specific conductance pH Dissolved oxygen Salinity Turbidity	Total precipitation

Additional parameters are available at some sites, such as tide elevation, nitrate plus nitrite, or sensor depth. All parameters are not necessarily available at each site.

Related Services

USGS WaterNow

The USGS WaterNow service lets you send a query for a USGS gaging site, via email or cell-phone text message, and quickly receive a reply with its most recent data for one or more if its monitored parameters.

USGS National Water Information System Mapper

The National Water Information System (NWIS) provides access to data at over 1.5 million sites. There are 56 possible site types, including 14 primary types and 42 secondary types. Sites may be active or inactive, real-time or historical.

USGS Flood Inundation Mapper

Ths mapping tool shows digital, geospatial, flood-inundation maps of flood water extent and depth on the land surface, with current site conditions.