Dozens of tornado warnings were issued for central Oklahoma and parts of Missouri, especially near St.
April and May are the heart of tornado season, which unofficially runs from March through June.
Many thanks to those of you who sent comments, pictures and video of Tornado.
Her students were among the 24 people killed by the twister -- an EF5, the strongest category of tornado.
That category of tornado generally packs winds of 113 to 157 mph.
But the remarkable and good news is that we have cut the frequency of tornado fatalities, in deaths per million population, by at least fourfold in the past century.
Armed with nothing but a flashlight and finding no signs of life, firefighter David Harmon made one final search of tornado wreckage and made the discovery of a lifetime.
More than 39, 600 of those segments had sufficient information on their location, intensity, length, and width to be used in the analysis of tornado strike probabilities and maximum wind speeds.
This warning was 16 minutes before the touchdown of the Moore tornado outside of Newcastle, Oklahoma, and nearly an hour before the end of the tornado some 20 miles away.
This is the height of tornado season across much of the American Midwest, when the changing seasons bring that peculiar mix of moisture, hot and cold temperatures and varying atmospheric pressure that creates a funnel of death.
Projects include resume building workshops for unemployed men and women, disaster relief in the face of tornado and wildfire damage, and creating a community garden that has gone on to provide fresh, organic produce for low income children.
Senior RAF officers saw the possible disappearance of the Tornado, which is the last vestige of the service's wartime Bomber Command, as a threat to the future existence of their service.
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Another innovation with the new research could result in forecasters providing the strength of a tornado at the time it is formed, instead of after the fact, as is currently the case.
Sightings by crews of six RAF Tornado jets of a UFO over Germany in 1990, believed to be a stealth aircraft.
PORTLAND, Maine Damaging winds flattened trees and utility wires and knocked out power in parts of northern New England on Sunday, flights were delayed in New York City and there were reports of a tornado in South Carolina as the East Coast weathered the remnants of violent storms that claimed 13 lives in Oklahoma.
It revealed only one of the Tornado GR4 pilots saw the glider and while taking avoiding action its effectiveness would have been marginal because of the speed the jet was going.
Residents may react differently if they know the intensity of the tornado heading toward them.
Wednesday marks the second anniversary of the tornado that pulverized Joplin, killing at least 158 people.
The cruelty of a tornado is that so often there is no time to evacuate.
The truth of the entrepreneurial life is a tornado of long hours, high risk and uncertainty.
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Winds in the area caused the storm to rotate, and that rotation promoted the development of a tornado.
The Fujita scale is used to estimate the wind speed of a tornado by the damage the tornado causes.
In Springfield, 90 miles west of Boston, signs of the tornado are everywhere.
It could be that he took some calculated chances and was caught by the rapid northward motion of the tornado.
It's time now for your letters, and we got many about our coverage of the tornado that devastated Moore, Oklahoma.
In the case of the tornado that hit Moore, forecasters predicted severe weather in the Oklahoma area as early as Wednesday.
In northwestern South Carolina, authorities checked unconfirmed reports of a tornado, said Jessica Ashley, a shift supervisor for Anderson County's 911 center.
Coverage of the tornado damage was on the clubhouse TV as the Red Sox prepared for their game at the Chicago White Sox.
All the volunteer firefighters from this city who recently traveled to Iowa to help another community recover from the devastation of a tornado.
Authorities were urging people in the path of the tornado to take immediate cover, and Fallin was urging residents not to take any risks.
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