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.
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

UN Watchdog Urges Israel to Probe Possible Gaza War Crimes

More than 2,100 Palestinians, most of them civilians, were killed in a 51-day war in Gaza, along with 67 Israeli soldiers and six civilians in Israel More

New Kenyan 'Thin SIMs' Poised to Transform African Mobile Money

Equity's new technology is approved in African nation for one-year trial, though industry leader Safaricom says thin SIMs could lead to data theft and fraud More

Solar's Future Looks Brighter

New technology and dropping prices are contributing to a surge in solar power 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.
Talks to Resume on Winter Gas for Ukrainei
X
Al Pessin
October 25, 2014 4:21 PM
Ukrainian and Russian officials will meet again next week in an effort to settle their dispute over natural gas supplies that threatens to leave Ukraine short of heating fuel for the coming winter. VOA’s Al Pessin reports from London the dispute is complex, and has both economic and geopolitical dimensions.
Video

Video Talks to Resume on Winter Gas for Ukraine

Ukrainian and Russian officials will meet again next week in an effort to settle their dispute over natural gas supplies that threatens to leave Ukraine short of heating fuel for the coming winter. VOA’s Al Pessin reports from London the dispute is complex, and has both economic and geopolitical dimensions.
Video

Video Smugglers Offer Cheap Passage From Turkey to Syria

Smugglers in Turkey offer a relatively cheap passage across the border into Syria. Ankara has stepped up efforts to stem the flow of foreign fighters who want to join Islamic State militants fighting for control of the Syrian border city of Kobani. But porous borders and border guards who can be bribed make illegal border crossings quite easy. Zlatica Hoke has more.
Video

Video China Political Meeting Seeks to Improve Rule of Law

China’s communist leaders will host a top level political meeting this week, called the Fourth Plenum, and for the first time in the party’s history, rule of law will be a key item on the agenda. Analysts and Chinese media reports say the meetings could see the approval of long-awaited measures aimed at giving courts more independence and include steps to enhance an already aggressive and high-reaching anti-corruption drive. VOA’s Bill Ide has more from Beijing.
Video

Video After Decades of Pressure, Luxembourg Drops Bank Secrecy Rules

European Union finance ministers have reached a breakthrough agreement that will make it more difficult for tax cheats to hide their money. The new legislation, which had been blocked for years by countries with a reputation as tax havens, was approved last week after Luxembourg and Austria agreed to lift their vetoes. But as Mil Arcega reports, it doesn’t mean tax cheats have run out of places to keep their money hidden.
Video

Video Kobani Refugees Welcome, Turkey Criticizes, US Airdrop

Residents of Kobani in northern Syria have welcomed the airdrop of weapons, ammunition and medicine to Kurdish militia who are resisting the seizure of their city by Islamic State militants. The Turkish government, however, has criticized the operation. VOA’s Scott Bobb reports from southeastern Turkey, across the border from Kobani.
Video

Video US ‘Death Cafes’ Put Focus on the Finale

In contemporary America, death usually is a topic to be avoided. But the growing “death café” movement encourages people to discuss their fears and desires about their final moments. VOA’s Jerome Socolovsky reports.
Video

Video Ebola Orphanage Opens in Sierra Leone

Sierra Leone's first Ebola orphanage has opened in the Kailahun district. Hundreds of children orphaned since the beginning of the Ebola outbreak face stigma and rejection with nobody to care for them. Adam Bailes reports for VOA about a new interim care center that's aimed at helping the growing number of children affected by Ebola.

All About America

AppleAndroid