Streamflow Informations:
http://water.usgs.gov/public/dwc
htttp://waterdata.usgs.gov/nwis-w/US
Peakflow data:
http://h2o.usgs.gov/public/realtime.htm
Regional Flood Safety:
http://www.nws.noaa.gov/om/nh-flood.htm
River forecast centers:
http://info.abrfc.noaa.gov/rfc_wfo.html
Hurricane Safety:
http://www.nws.noaa.gov/om/nh-hurr.htm
South Florida :
http://www.sfwmd.gov