Earlier this month, meteorologist blogger Cliff Mass announced the death of the “blob” in the northeast Pacific Ocean.
The “blob” refers to the large area of very warm waters that helped set up a bulging area of high pressure over Alaska, around which the jet stream flowed, directing impressive cold over the U.S. for the past two winters and blocking storms from hitting the West Coast.
Source: The Pacific ‘blob’ loses. El Niño wins. What comes next? – The Washington Post