Heavy Snow will be possible to the lee of the Great Lakes. More snow is also expected over parts of the Appalachians, Northern Mid-Atlantic and the Plains. A front will bring rain and high elevation snow to the Pacific Northwest as near record warmth continues in southern California.
River levels and flood conditions.
Current obserations from NOAA's geostationary satellites.
Observed precipitation over a 24 hour period
Snow analyses for water equivalent, depth, snowpack temperature, and snow melt.
Upper air observations from radiosonde stations in North America, Pacific Islands, and Caribbean.
Daily maximum and minimum temperatures, snowfall, and 24-hour precipitation totals, as observed by a network of volunteer observers.
Atmospheric and oceanographic conditions reported from a global network of data collecting buoys.