Wind-chill warnings and advisories posted in 12 northern states, from the northeastern corner of Montana to northern Maine.
Heaviest snow will move into Maryland, Virginia, North Carolina, Tennessee and up to 3 inches of snow is expected in the capital Washington, the second snowstorm in a week.
Torrential rains have inundated central China, paralysing several cities and causing millions of dollars in damage.
Authorities have issued the highest warning level for Henan province as record floods hammer Zhengzhou province.
Recent storms across parts of western Europe made rivers and reservoirs burst their banks, triggering flash floods and claiming 59 lives in Germany and killing 9 people in Belgium.
The deaths occurred mostly from exposure to the sometimes-subzero temperatures.
Firefighters are struggling to contain exploding Northern California wildfires under blazing temperatures as another heatwave hits western US this weekend.
At least three people dead as howling winds and waves the height of double-decker buses belt eastern India in the Covid-stricken country's second cyclone in as many weeks.
Cyclone Yaas is set to turn into a “very severe cyclonic storm” on east coast, likely to come ashore near the border between Odisha and West Bengal states early on Wednesday.
At least 33 people are dead and more than 90 are missing after a monster Cyclone Tauktae slammed India, compounding the country's woes as it posted a new record number of Covid-19 deaths in 24 hours.
More than 7,600 people, many of them rescued from flooded villages, were taking shelter in evacuation centres.
Ten provinces of central Spain were on their highest level of alert for Storm Filomena, including the capital, Madrid, where authorities have activated the red warning for the first time.
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