La Nina Still Bringing Colder Than Normal Temps to U.S. East Coast

Because of the moderate La Nina in the eastern Pacific, we've had a colder than normal winter up and down the U.S. east coast.
According to the National Climate Prediction Center, La Niña is expected to continue into Northern Hemisphere Spring 2009. A La Niña event occurs when below-average equatorial sea surface temperatures (SST) happen across the central and east-central Pacific Ocean. That colder than normal waters off the Pacific coast change the course of Jet Streams across the U.S.
In the eastern U.S., since November, the jet stream his dipped down like a "U" shape through the center of the country and back east of the U.S. east coast, allowing for colder than normal air to move down into the region from Canada.
What's worse, is that it looks like it will hang around through APRIL making it a CHILLY early springtime.Here's the official report: http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/ensodisc.pdf