How to use this Surface Water Record display:

If red areas are showing, these are lands inundated by current or recent flooding.

Light blue areas are water imaged by MODIS on a date chosen to represent average conditions.

Darker blue or green-blue areas are lands inundated by previous mapped flood events. See symbology key for year of event.

Flooded areas earlier this year are shown in the appropriate color (green, for 2009).

Click on the white dots or circles to access records of estimated river discharge, 2002-present, at the River Watch measurement sites.