La Niña continues to develop: How it impacts Tennessee – Nashville-Davidson, Tennessee

Nashville-Davidson, Tennessee 2021-10-15 18:44:20 –

Nashville, Tennessee (WKRN) — It seems that the weather in Tennessee can be sunny for a minute and then rainy.

Meteorological patterns are often affected by larger patterns based on climatology. There is one particular pattern that is often talked about as we head into winter. It’s El Nino and La Niña.

But what do these terms mean and why are they important in this area?

Let’s start with El Nino. This phenomenon shows the impact of trade winds on the equatorial Pacific Ocean. Trade winds from east to west help keep warm water towards the Central Pacific. However, there are periods when trade winds weaken or almost stop and warm water drifts east towards the North and South American coastlines. The phenomenon is called El Nino, and winters are often relatively dry in our area.

Conversely, stronger trade winds cause the La Niña phenomenon, which makes the water in the eastern equatorial Pacific (along the coasts of North and South America) colder than average. The La Niña phenomenon is usually a pattern of winter rains in central Tennessee.

According to the Climate Prediction Center, The La Niña phenomenon is occurring, and there is an 87% chance that it will continue from December 2021 to February 2022.

But before winter, we are in a secondary stormy season. Make sure you have a strict weather preparation plan!

La Niña continues to develop: How it impacts Tennessee Source link La Niña continues to develop: How it impacts Tennessee

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