* Real time satellite images
http://www.ssec.wisc.edu/data/

* Real time satellite tracking
http://science.nasa.gov/realtime/


Ocean Temperatures

* Argo floats
http://www.argo.ucsd.edu/Frlinks.htm

http://www.marine.csiro.au/remotesensing/web_point/

* River data
http://nwis.waterdata.usgs.gov/usa/nwis/peak

http://waterdata.usgs.gov/nwis/rt

http://dataservice.eea.europa.eu/dataservice/metadetails.asp?id=972

* World Meteorological Organization
http://www.wmo.ch/