Update at 10:20 p.m. ET. Video Of The Canadian County Tornado:
KFOR in Oklahoma City has posted some dramatic video of the tornado that cut through Canadian County. In the video, you hear meteorologist David Payne say that the tornadeo is a quarter-mile wide at least and that it's an EF-4 and perhaps even an EF-5 tornado. Those designations are at the upper end of the Enhanced Fujita Scale:
Update at 7:46 p.m. ET. A Long Night:
David Imy, a meteorologist for for the National Weather Service's Storm Prediction Center, told NPR's Newscast unit that the conditions are just right for the formation of strong super cells that "can produce very damaging tornadoes." He said they expect a long night ahead.
Right now, the strongest storms are in Oklahoma and Kansas, but over the next several hours they are expected to move east into Missouri, north Texas, Western Missouri and Arkansas. Eventually, Imy said, they will become more of a wind threat.
Update at 7:17 p.m. ET. Two Dead In Oklahoma City Suburb:
The AP reports that an emergency official said at least two are dead in suburban Oklahoma City, as a result of a line of severe thunderstorms that move through the area this afternoon:
Jerry Smith, the Emergency Management director for Canadian County, said he had no other details about the deaths Tuesdayafternoon.
Our Original Post:
As we reported earlier, the National Weather Service's Storm Prediction Center issued warnings of an "intense tornado outbreak expected over parts of the Southern and Central Plains and Ozarks."
Right now, local news station KFOR is reporting a significant outbreak of tornadoes in the Oklahoma City area and that authorities have declared a tornado emergency for the south metro area. At least one tornado, they report, is large. It's very hard to tell how much damage they will cause and KFOR's live local coverage is understandably breathless, so keep that in mind as you watch. KFOR's chopper is attempting to get a visual on one of the tornadoes:
We've also centered a map with Twitter updates near Edmond, Oklahoma, where one large tornado is about to pass over:
(Note at 7:53 p.m. ET., we've left the Twitter map centered around the Oklahoma City area. And also note that not all the tweets being picked up by the map are about the tornadoes. Every time you refresh your page, the map will be populated with new tweets.)
We'll update this post as we get more.