On a similar note.............
The USGS has a cool feature on their website that will allow you to receive real time data for many different bodies of water all over the U.S.
I can monitor flow in cubic ft./sec., gage height, water temp, and current precip. amounts of a creek that flows through my property. The measuring station is about 100 yards upstream from my property line on gov. owned land.
Check it out, there may be a data collection site near you. It is a great tool if you are an absentee land owner!
USGS National Water Information System Web Interface.
