An April blizzard is forecast to dump more than a foot of snow in some areas, while igniting severe thunderstorms.
Toxic algae blooms in Lake Erie could come more often and be more intense in coming decades.
NOAA's three-month spring outlook forecasts drought in the West, and warns of high-flood risks in the Midwest.
An intense late-winter storm will affect millions from Chicago to the Mid-Atlantic with snow, wind, and coastal flooding.
The severe drought ebbed in the Southeast, but water supply concerns are growing amid a dry Western winter.
Time is running out to avert a third summer of drought in much of the High Plains, West and Southwest.
A strong storm will bring much-needed precipitation to drought-stricken areas of the West and Plains.
A state-by-state interactive puts the impact of the 2012 U.S. drought in perspective.