From the Delaware River in the east to the Columbia River in the west and a host of waterways in between fishermen routinely go online and check water conditions for their favorite river or stream on the U.S. Geological Survey website. Now this data can automatically be sent directly to your cell phone via a text message or by email to your computer or hand held device by signing up on the USGS Water Alert website.
Real-time data from USGS gauges are sent via satellite to USGS offices at various intervals, usually once every 1 or 4 hours. Emergency transmissions, such as during floods, may be more frequent. Water temperature data is available on many stations and even salinity on select stations where this information is pertinent.
The WaterAlert text messaging is available for many gauging stations in the country. A quick check on their website will show you if your favorite river or stream is covered.