The United States has seen weird weather so far in 2015. A new study has suggested that warm blob in the Pacific Ocean could be responsible for some of the weird weather in the United States this year. According to scientists, the blob is about 1,000 miles off the West Coast and stretches from Mexico to Alaska.

In a statement, Nick Bond, a climate scientist at the University of Washington and co- author of the study, said, “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”.

According to reports, the warm blob is about 1 to 4 degrees Celsius warmer than the usual temperature for the area. The warm blob means that the winter air that crosses over the Pacific Ocean was not cooled as much as it usually would be. That warmer winter air spelled warmer conditions for the West Coast of the United States.

Scientists had first observed the patch of warm water last year. At that time, Bond noticed that Washington experienced a milder winter than usual. At that point, the warm blob stretched about 1,000 miles in each direction.

About ten months later, the warm blob is still of United States shores. According to Bond, all the models are pointing that the blob will continue through the end of 2015. The new study has also explored the origins of the blob. According to the study, the warm blob is related to a persistent high-pressure edge that caused calmer ocean during last two winters.