Story Created:
Feb 10, 2011 at 6:48 PM EDT
Story Updated:
Feb 10, 2011 at 6:48 PM EDT
The La Nina condition that helped promote the snowstorms that blasted across the Midwest and East may be easing its grip.
WASHINGTON (AP) - The La Nina condition that helped promote the snowstorms that blasted across the Midwest and East may be easing its grip.
While the condition marked by cooler-than-normal sea surface temperatures in the tropical Pacific is persisting, the government's Climate Prediction Center said Thursday that some weakening is evident.
La Nina and its opposite, El Nino, change wind and air pressure patterns that can affect weather around the world.
This winter La Nina dominated the flow coming off the Pacific, moving storms through the Ohio Valley and with heavy precipitation to the Great Lakes and the East.
The center said current wind and pressure patterns over the Pacific "reflect an ongoing and mature La Nina that has begun to weaken."
(Copyright 2011 by The Associated Press. All Rights Reserved.)
Most Popular