Strong to severe thunderstorms will be possible on Saturday over the Upper Midwest, Great Lakes and portions of the Plains on Saturday. large hail, damaging winds, and isolated tornadoes will be possible. Additional severe thunderstorms may be possible in similar locations on Sunday.
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.