This year's El Niño may deliver a quiet tornado season.
Tornadoes are the most powerful, unpredictable and destructive weather systems on Earth. The National Weather Service (NWS) defines a Tornado as a violently rotating column of air in contact with the earth’s surface (land or water) and commonly associated with a severe thunderstorm.A tornado generally occurs when high winds within a low pressure system (such as a thunderstorm) cause water vapor in the air to condense in to a condensation funnel cloud. Many less severe tornadoes are not even visible to the human eye. Major tornadoes usually become more visible when the strong winds within the funnel lift up dirt and debris off the Earth’s surface. Tornadoes are generally classified as either a land spout (a tornado on land), a water spout (a tornado that forms over water) or a gustnado (a small tornado caused by a strong downburst of wind from a thunderstorm).The average tornado has maximum wind speeds of about 112 mph or less, measures around 250 feet in width and travels approximately one mile before falling apart. Some of the most catastrophic tornadoes in recorded history have had winds in excess of 300 miles an hour (twice that of a category 5 hurricane), have measured more than 2 miles in girth, and have carved devastating paths of destruction miles and miles in length.
While the tornado total will climb by 2100, the number of tornadoes will also swing wildly from year to year.
One of the deadliest tornado outbreaks in U.S. history was strengthened by smoke from burning farmlands in Central America, a new study suggests.
There are fewer days with tornadoes compared to 60 years ago, but the risk of deadly tornado clusters is rising.
Never mind the huge cost, ecological consequences and engineering difficulties involved in a newly proposed scheme to make tornado-blocking walls, weather experts say the idea is too crazy to work.
School hallways provided scant protection during the 2013 EF5 tornado in Moore, Oklahoma. Now, state and school officials are trying to make schools safer places to be during extreme weather.
The May 20, 2013, tornado has the people of Moore working to restore what was demolished, and this time the city is rebuilding stronger.
Often after severe weather strikes, people are left to pick up the pieces, but one man and his dog are on a mission to provide comfort to tornado victims.
An EF4 tornado that killed 16 people in Arkansas on April 27 left a scar across the landscape more than 40 miles long. This track is visible in a new satellite image.
Tornadoes ripped through the southern and midwestern United States on April 27, 2014, leaving behind scenes of devastation.
A cold spring in the Midwest and Southwest brought a quiet start to tornado season this year, with the fewest twisters since 1915.
Natural disasters can create conditions that put survivors at risk for fungal infections, which are often overlooked, a new report from the Centers for Disease Control and Prevention states.