La Nina has arrived. Here what it means to you

The National Oceanic and Atmospheric Administration announced the arrival of La Nina on Thursday, advising that conditions were expected to be fine during the winter in the Northern Hemisphere.

El Niño, the equivalent of El Niño, is characterized by normal sea surface temperatures in the Pacific Ocean near the equator – as a result of changing wind patterns in the atmosphere.

According to NOAA, both La Niña and El Niño average on average every three to five years.

La Nina’s arrival could affect weather around the world, possibly causing more frequent and stronger storms for the last few months of Atlantic hurricanes. It can also mean wetter conditions for northern Australia, Indonesia and the Philippines, drier conditions for western South America, and cooler conditions for western Africa.

NOAA released a La Nina watch in July, warning that La Nina could be formed in the fall. The agency likely in its outlook on the 2020 hurricane season, according to last month’s forecast, formed La Nina in the fact that it would be “highly active”.

La Niña weakens the winds between the ocean surface and the upper levels of the atmosphere, which allows the storm to rise easily. It also affects the state of the jet stream over North America, which can affect the track and severity of winter storms. It goes for wet and cooler winters along the Pacific Northwest and in areas currently experiencing major wildfires.

La Nina and Climate Change

Although El Niño and La Niña events are regular aspects of global weather patterns, increasing global temperatures may cause changes in temperature or change their effects.

CNN meteorologist Brandnon said, “La Nina pulls global temperatures down, but in recent years we’ve been warming the planet so fast, it’s hitting 80 mph.”

It is too early to know how climate change will affect those patterns; Research is beginning to show how a warmer climate can increase the effects of El Niño and La Niña.

NOAA releases a La Nina watch, inspiration for an active hurricane season
A 2018 study on atmospheric conditions drove simulations of climatic conditions and found that climate change could increase the severity of weather events stemming from El Niño patterns.

Outside of any impact on the storm, climate change may mean that some old temperature patterns associated with El Niño and La Niña no longer apply.

Miller said, “2020 is already trending as one of the top two hottest years on record. Perhaps a cooling effect from an emerging La Nina would put it out of the top spot, but possibly still in the top 3. Will be less than, ”Miller said.

“The top spots on the hottest years list were reserved for the strong El Niño years, but human influences have long overwhelmed the planet’s natural temperature regulators.”

Judson Jones and Virginia Langmid of CNN contributed to this report.