- Current North American snow and ice cover
- 24-hour snowfall
- National Snow and Ice Cover Analysis (includes access to historical maps)
- Cryosphere Today
- Global snow and ice lab
- National Hydrologic Remote Sensing Center Current Snow Analyses
- Northern Hemisphere snow and ice cover:
- National Snow and Ice Data Center
- Current Arctic Sea Ice Extent (NSIDC) (click on Daily Tab when there to see year to date)
- Current Sea Ice and Snow Cover Extent (NCDC)