Weather Notebook
Bryan Yeaton
 


 
El Niño Brings
Wed Jan 15, 2003

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Hi, I'm Bryan Yeaton for The Weather Notebook. Today, correspondent Robin White tells us why this year's El Niño might be just a little different.

In July this year, climatologists confirmed a new El Niño forming in the Southern Pacific. People started to brace for the coming winter. But, weatherman Warren Blier at the National Oceanic and Atmospheric Administration in Monterey says this El Niño is weak. It may not bring a lot of bad weather and he's had to explain this to a disappointed press.

WB: What seems to catch people's attention is the word "El Niño." What comes to mind is one of these dramatic El Niño years like we've had in the past.

But Blier says this year is different. The Pacific Ocean off Chile and Peru has only warmed up 1 or 2 degrees unlike the 5 degrees measured during 1998. That year brought torrential rain to California and dry weather to the Pacific North West. But this El Niño may not be strong enough to shift the jet stream. That's what changed the weather patterns in the big El Niño's of the last two decades. But Blier says those big weather years are not the only things called "El Niño."

WB: There's also been a lot of other El Niño events... and in those other El Niño events, it might not have even been so apparent that they were occurring because there wasn't necessarily any particular impact.

A weak El Niño was first recorded in 1740, and others have been seen as recently as 1931. For this year, forecasters predict a slightly wetter than average winter in the Southwest, while the Midwest and Pacific Northwest could be a bit drier. As for the rest of the country, EL Niño might just do nothing. For The Weather Notebook, I'm Robin White.

The Weather Notebook is produced in New Hampshire at the Mount Washington Observatory, with support from Subaru of America, and the National Science Foundation.




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