The number of tornadoes may not be increasing across the US, year to year, but studies are showing that they are concentrating into deadly clusters, a trend that is expected to continue with climate change.
36-Hour Precipitation Outlook
Seven Canadian cities wrecked by weather
The power of the elements destroyed homes and lives.
The History of Signal Hill
See why the hill plays such an important role in modern communication.
The Calm Before the Storm: Does it exist?
We hear the phrase so often, but there's real science behind this phenomenon.