'Warm Blob' in Pacific Ocean to Blame for California Drought, East Coast's Snowstorms
ByClimate scientists believe California's strange weather of late can be attributed to a warm "blob" in the Pacific Ocean.
According to Live Science, authors of a study published in the journal Geophysical Research Letters said the blob could also be responsible for weather events on the opposite coast. Already in 2015, the west coast has suffered a drought while the other side of the U.S. braved a series of consecutive snowstorms.
"In the fall of 2013 and early 2014 we started to notice a big, almost circular mass of water that just didn't cool off as much as it usually did, so by spring of 2014 it was warmer than we had ever seen it for that time of year," Nick Bond, a climate scientist at the University of Washington-based Joint Institute for the Study of the Atmosphere and Ocean, said in a press release.
This region of warmer is up to seven degrees Fahrenheit warmer than it should be, which has influenced California's dry spell. Dennis Hartmann, a UW professor of atmospheric sciences, published a study in the same journal on the winter of 2013-2014 and how it affected the Central U.S.
"Lately this mode seems to have emerged as second to the El Niño Southern Oscillation in terms of driving the long-term variability, especially over North America," he said in the release. "It's an interesting question if that's just natural variability happening or if there's something changing about how the Pacific Ocean decadal variability behaves.
"I don't think we know the answer. Maybe it will go away quickly and we won't talk about it anymore, but if it persists for a third year, then we'll know something really unusual is going on."