River Ice

Satellite River Ice Imagery shown below from the RealEarth data discovery platform by SSEC/CIMSS - University of Wisconsin -Madison

Links to some additional sources of river ice information:

NCRFC River Ice Product
Space Science and Engineering Center - Cooperative Institute for Meteorological Satellite Studies (SSEC / CIMMS)
U.S. Army Corps of Engineers (USACE) Ice Jam Database
Cold Regions Research and Engineering Laboratory (CRREL)
Stevens Institute of Technology River Ice Mapping System