NOAA has declared that a La Niña is underway. This cool weather event is likely to be shorter and weaker than usual, but will still affect global weather and climate.

La Niña is finally here. The National Oceanic and Atmospheric Administration announced that conditions have officially formed to declare the weather event. The post NOAA: La Niña Conditions Have Officially Emerged first appeared on The Inertia.

La Niña is usually associated with drier conditions across the southern part of the U.S. and wetter conditions to the north. This reflects how La Niña is associated with a more poleward-shifted jet stream that deflects the storm tracks to the north (both Emily and Tom have written some nice explainers).

NOAA predicts La Niña to persist until spring 2025 Event likely to be weaker and shorter than typical La Niñas Global weather patterns, including hurricanes, could still be affected

The mountains and foothills of Los Angeles County are in “extreme drought” conditions, about 36% of the county, explained Pugh. That’s one category shy of hitting the highest level, “exceptional drought,” and three higher than the lowest, “abnormally dry.” The rest of the county is in severe drought.

Drought conditions are spreading across much of the state, including severe drought in 11 eastern North Carolina counties.

La Niña has arrived and is likely to be impacting the winter season, including how much snow and rain New England might see before the start of spring.

Several ski resorts in B.C. are thriving despite a delayed La Niña, which was expected to bring cooler temperatures and greater precipitation to mountains throughout the province.

The long-awaited La Niña has finally arrived but it is weak and meteorologists say it's unlikely to cause as many weather problems as usual. Experts have been expecting the arrival of the climate phenomenon since last spring but finally,

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head of NOAA's El Nino team. “It’s totally not clear why this La Nina is so late to form, and I have no doubt it’s going to be a topic of a lot of research,” L'Heureux said. But even as ...