NOAA/GLERL Great Lakes Surface Currents Map
See Additional Currents:
Updated four times per day at 3 and 9 Eastern Time
Currents for 2010-2013
Click on map to zoom; click and drag to pan. This animation may not work on all browsers.
Note, these maps are designed to depict a broad overview of the current field, and are considered to be more qualitative than quantitative.
In particular, the specific coordinates are not very accurate. See also, https://www.glerl.noaa.gov/res/glcfs/,
The flow patterns depicted in these visualizations of lake currents are based on simulations from the Great Lakes Coastal Forecasting System
operated by NOAA's Great Lakes Environmental Research Laboratory
The "Latest" and "3hrs Previous" visualizations depict water motion corresponding to a snapshot
of lake currents at the
present time and three hours previous to the present time. Lake currents can change rapidly with changing wind conditions.
Surface currents tend to follow the wind direction more closely than currents at depth. Depth-averaged currents represent
the average water motion from surface to bottom and tend to follow shoreline and bottom contours.
This map uses copyrighted technology developed by Fernanda Viegas and Martin Wattenberg
) for their stunning wind map application
They have graciously allowed us to show visualization of lake currents here until license issues are resolved.
Data is acquired from from the GLOS THREDDS Data Server via OPeNDAP using python scripts (courtesy of Rich Signell
Please send feedback and inquiries to: Eric Anderson