WMO forecasts weak La Nina in coming months

GENEVA, Dec. 4 (Xinhua) -- There is a 55 percent chance of a weak La Nina impacting global weather and climate patterns during the next three months, according to the latest updates from the World Meteorological Organization (WMO) on Thursday.

La Nina refers to the periodic large-scale cooling of the surface temperatures in the central and eastern equatorial Pacific Ocean, coupled with changes in tropical atmospheric circulation, including shifts in winds, pressure, and rainfall patterns.