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Triple-threat storm bears down on Central, Southern U.S.

DEREK VAN DAM, CNN METEOROLOGIST: Yes, Becky, we're already noticing some of the video coming in from the Dallas Fort Worth Metroplex of the damage
 

metroplex [ˈmɛtrəˌplɛks] n. 大都会区

from these storms that rolled through earlier today. What you're looking at directly behind me is a moving company and some of the debris left behind

where the Dallas-Fort Worth International Airport reported winds of 74 miles per hour. Remember, that is equivalent to a Category 1 hurricane here

in the Atlantic seaboard.

Now, this isn't the end of the rough weather for the day today. We're talking about New Orleans now, who is currently under a high wind warning.

So this is in advance of these storms that will approach later today.

And I'm thinking about all the people, the hundreds and thousands of people who are flocking the streets of New Orleans to celebrate Fat Tuesday, the Mardi Gras celebrations,

and news this morning from the Storm Prediction center here out of the United States, we have this hatched area. You see
 

hatched area 打斜线部分; 加影线部分

from Shreveport, Louisiana, Jackson, Mississippi all the way to the Gulf coast inclusive of New Orleans, where tornadoes could become particularly

strong. EF2 or greater. That's winds of 111 miles per hour.

To prove my point, we already have a newly issued tornado watch, meaning conditions are primed and ready for tornadic development. There have been intermittent

prime [praɪm] v. 使准备好

intermittent [͵ɪntɚˋmɪtnt] adj. 间歇的；时断时续的；周期性的

tornadoes developing across this line of storms now just entering northwestern Louisiana. In and around Shreveport, there was a

tornado warning which actually is still in effect for the suburbs of Shreveport.

This is radar indicated. It's already knocked out power for hundreds and thousands of customers across the state of Texas, some into southern

Oklahoma. This storm advances east, brings rough weather overnight into Atlanta, then reorganizes along the Eastern seaboard for the day tomorrow.

So this is the multi-day severe weather threat that we are undergoing across the Deep South and eventually the east coast for tomorrow.

This is part of a larger, very potent spring like storm system that is marching eastward. It's got so many different components, very dynamic

storm system that will bring blizzard conditions to the Plains as well as parts of the Midwest.

Check this out. Just south of Minneapolis, all the way to Omaha. That shading of red is a blizzard warning, meaning that blizzard conditions are in store
 

in store 储存着

within the next 36 hours. It doesn't necessarily mean the amount of snow. It's the winds that drop the visibility below a quarter of a mile

for three consecutive hours. And that means blizzard conditions will ensue.

So this is the culprit, the reason the cold front moving eastward behind it, a lot of wind and very dry environment. So that is a recipe for fire

danger. That's why we have this extreme fire threat.

[10:40:00]

Becky, really we're talking about a triple threat with this spring like storm from blizzard conditions to severe weather in the south and then on

the western side of this storm system, the extreme fire threat that we're monitoring so closely already sparked off a dust storm in El Paso, Texas,

which you can see here on this satellite image from yesterday. So really incredible just to witness everything coming together in this very spring

like storm.