During the second half of January and early February 2012, bitterly cold air originating from Siberia killed hundreds of people across Europe.
According to the World Meteorological Organization, lows plummeted to as low as minus 30 degrees C in eastern European countries of Latvia, Belarus, northeastern Poland and Ukraine, while lows fell to minus 10 to minus 15 degrees C in central and western Europe.
Pictures from Europe's Deep Freeze:
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Heat and humidity surging from the Great Lakes and Ohio Valley into the Northeast will be the key ingredients for severe weather to develop Tuesday and Tuesday night.
A bout of locally heavy rain will impact northern and western areas of the United Kingdom Sunday night into Tuesday as moisture from Gert crosses the British Isles.
The government of Portugal has issued a state of public calamity as wildfires continue to burn across the country ahead of a weekend heat wave.
Following the formation Tropical Depression Harvey, two additional tropical systems may form across the Atlantic Basin with one potentially impacting the US
After drenching the Windward Islands, Harvey will continue to track toward Central America and may bring dangerous conditions early next week.
A renewed threat for severe weather and flooding will emerge over the midwestern United States spanning late Sunday into Monday.
A local festival turned deadly after severe thunderstorms tore through northwestern Austria on Friday night.
On Monday, Aug. 21, the event that millions have anticipated will unfold when the moon passes directly in front of the sun.