USGS
has a service called “StreaMail” that allows you to send a
phone SMS text message or email to “streamail@usgs.gov
and get back a text message or email telling you the latest river
stage and streamflow.

Steps are:
(1) Send text
message/email to “streamail@usgs.gov
(2)
For the “Subject line”, use a USGS site number, such as
“02336300”
(3) You should get a reply in 5 minutes
formated like this:

Site:
02336300
Station name: PEACHTREE CREEK AT ATL, GA
Date:
09/30/2009
Time: 09:00:00
Stage: 2.95 feet
Streamflow: 90
cubic feet per second (cfs)

Help Link