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Sep 14, 2022 · An intensifying typhoon in the Pacific is hardly noteworthy, but its location where it intensified is a little perplexing. This could be a September to remember for many Canadians.
Sep 10, 2020 · La Niña affects US weather through its impact on the Asia-North Pacific jet stream, which is retracted to the west during a La Niña winter and often shifted northward of its average position. Tom wrote a great explanation of the La Niña/jet stream mechanics and impacts here.
- How El Niño and La Niña Affect The Weather
- Back-To-Back La Niñas May Bring A Gloomy Autumn
- How Enso Could Change as The Climate Warms
Each year, scientists monitor this region for the telltale signs of El Niño or La Niña conditions, which arise through a process known as El Niño-Southern Oscillation, or ENSO. “During La Niña conditions, the waters off the western coast of South America tend to be much colder than normal, and the opposite is true during an El Niño year,” Bumbaco e...
The fact that it comes on the heels of another La Niña event just last winter could make this a particularly interesting year. “When our office looked at back-to-back La Niña years throughout history, we saw that the second years tended to be a bit wetter from October to December,” Bumbaco recounts. “So, there may be some indication that it could i...
La Niña and El Niño events don’t follow a predictable pattern, but, on average, they tend to occur every two to seven years. As the climate changes, though, some research indicates that those patterns could change significantly. “To a certain extent, we don’t really know how climate change will affect ENSO,” Bond says. “Some of the climate models w...
surface temperatures (SSTs) above average in the western Pacific, near average in the east-central Pacific, and below average in the eastern Pacific. La Niña is favored to develop during September-October-November (66% chance) and persist through the winter 2024-2025 (near 70% chance).
September 23, 2020. The period of 2020 to date has seen weak positive El Nino conditions over the central Pacific but below the threshold (+0.8). Most of the models show the current NINO3.4 anomaly decreasing during the next few months, with the dynamical model average becoming negative by July and remaining negative until at least November.
Oct 1, 2021 · A series of major fires spread across eastern Washington and western Oregon starting on 7 September 2020, driven by strong easterly and northeasterly winds gusting to ~70 kt (1 kt ≈ 0.51 m s −1) at exposed locations.
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The TSR (Tropical Storm Risk) extended range forecast for Northwest Pacific typhoon activity in 2020 anticipates a season with an ACE index that is 10-15% below norm. The forecast spans the period from 1st January to 31st December 2020 (95% of typhoons occur historically after 1st May) and employs data through to the end of April 2020.
