News / USA

Deadly US Twister Hits 'Tornado Alley'

The storm system that generated an F-4 tornado in Moore, Oklahoma is pictured in this May 20, 2013 NASA handout photo shortly before the tornado struck.
The storm system that generated an F-4 tornado in Moore, Oklahoma is pictured in this May 20, 2013 NASA handout photo shortly before the tornado struck.
TEXT SIZE - +
VOA News
Monday's deadly tornado in the central U.S. state of Oklahoma struck in an area commonly known as "Tornado Alley" - home to most of the nation's tornadoes.

Tornado Alley is generally seen to span north to south from South Dakota to Texas between the Rocky Mountains and the Appalachian Mountains, but there is no official consensus on the boundaries.

Comparison of Tornado paths in Moore, Oklahoma - May 3, 1999 and May 20, 2013Comparison of Tornado paths in Moore, Oklahoma - May 3, 1999 and May 20, 2013
x
Comparison of Tornado paths in Moore, Oklahoma - May 3, 1999 and May 20, 2013
Comparison of Tornado paths in Moore, Oklahoma - May 3, 1999 and May 20, 2013
The region is susceptible to tornadoes when cold, dry air moving south from Canada meets warm, moist air from the Gulf of Mexico and warm, dry air moving east across the Rockies.  The collision of warm and cold air breeds severe thunderstorms, which spawn tornadoes.

The National Weather Service's Storm Prediction Center says Tornado Alley is a nickname used by the media and stresses it only indicates the area where most tornadoes occur. It says violent or killer tornadoes happen outside Tornado Alley every year and can strike almost anywhere in the United States, as well as in Canada and overseas.

Studies have shown the deadliest twisters in the U.S. happen to the east of Tornado Alley, in an area known as "Dixie Alley." The southern state of Florida also experiences a large number of tornadoes due to its frequent thunderstorms, but they are typically weak.

Tornadoes can strike at any time, but they form most often in May and June in the late afternoon to early evening.

On May 3, 1999, Moore, Oklahoma, the town devastated by Monday's tornado, was hit by another deadly twister. It was one of more than 70 tornadoes to touch down across Oklahoma and Kansas in just 21 hours.

You May Like

Video Pope Francis Hopes Dual Canonizations Will Reconcile Church

John the XXIII and John Paul II will be made saints in a ceremony at St. Peter’s Square on April 27 More

Thailand Reacts to Plots Targeting Israelis

Authorities hope arrest of two Lebanese suspects will disrupt plot to attack young Israeli tourists More

Video In Capturing Nature's Majesty, Film Makes Case for Its Survival

'Once Upon a Forest' takes viewers deep into heart of tropical rainforest More

This forum has been closed.
Comments
     
There are no comments in this forum. Be first and add one

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Pope Francis Hopes Dual Canonizations Will Reconcile Churchi
|| 0:00:00
...
 
🔇
X
Jerome Socolovsky
April 22, 2014 4:14 PM
On April 27, two popes - John the XXIII and John Paul II - will be made saints in a ceremony at St. Peter’s Square. VOA religion correspondent Jerome Socolovsky says the dual canonization is part of the current pope’s program to reconcile liberals and conservatives in the Roman Catholic Church.
Video

Video Pope Francis Hopes Dual Canonizations Will Reconcile Church

On April 27, two popes - John the XXIII and John Paul II - will be made saints in a ceremony at St. Peter’s Square. VOA religion correspondent Jerome Socolovsky says the dual canonization is part of the current pope’s program to reconcile liberals and conservatives in the Roman Catholic Church.
Video

Video In Capturing Nature's Majesty, Film Makes Case for Its Survival

French filmmaker Luc Jacquet won worldwide acclaim for his 2005 Academy Award-winning documentary "March of the Penguins". Now Jacquet is back with a new film that takes movie-goers deep into the heart of a tropical rainforest - not only to celebrate its grandeur, but to make the case for its survival. VOA's Rosanne Skirble reports.
Video

Video Boston Marathon Bittersweet for Many Runners

Monday's running of the Boston Marathon was bittersweet for many of the 36,000 participants as they finished the run that was interrupted by a double bombing last year. Many gathered along the route paid respect to the four people killed as a result of two bombings near the finish line. VOA's Carolyn Presutti returned to Boston this year to follow two runners, forever changed because of the crimes.
Video

Video Pacific Rim Trade Deal Proves Elusive

With the U.S.-led war in Iraq ended and American military involvement in Afghanistan winding down, President Barack Obama has sought to pivot the country's foreign policy focus towards Asia. One aspect of that pivot is the negotiation of a free-trade agreement among 12 Pacific Rim nations. But as Obama leaves this week on a trip to four Asian countries he has found it very difficult to complete the trade pact. VOA's Ken Bredemeier has more from Washington.
Video

Video Robotic Mission Kicks Up Lunar Dust

A robotic mission to the moon was deliberately crashed onto the lunar surface late last week, but not before scientists had collected data gathered by the spacecraft which was designed to self-destruct. VOA's Rosanne Skirble reports on the preliminary findings of the craft, called LADEE - an acronym for Lunar Atmosphere and Dust Environment Explorer.
Video

Video Boko Haram Claims Responsibility for Bombing in Nigerian Capital

The Nigerian militant group known as Boko Haram has claimed responsibility for a bombing in the capital on April 14th that killed 75 people. In the video message, Abubakar Shekau, the man who says he ordered the bombing, says nothing about the mass abduction of more than 100 teenage girls, most of whom are still missing. Heather Murdock has more for VOA from Abuja.
Video

Video Ukraine Developments Hang Over Obama Trip to Asia

President Barack Obama's trip to Asia this week comes as concerns over Beijing's territorial ambitions are growing in the region. Those concerns have been compounded by Russia's recent actions in Ukraine and the possibility that Chinese strategists might be looking to Crimea as a model for its territorial disputes with its neighbors. VOA's Bill Ide has more from Beijing.
Video

Video Autistic Adults Face Housing, Job Challenges

Many parents of children with disabilities fear for the future of their adult child. It can be difficult to find services to help adults with disabilities - physical, mental or emotional - find work or live on their own. The mother of an autistic boy set up a foundation to advocate for the estimated 1.2 million American adults with autism, a developmental disorder that causes communication difficulties and often social difficulties. VOA's Faiza Elmasry reports.
AppleAndroid