Monday 17 May 2021

La Niña is back and will bring storms, drought and bad weather

According to the World Meteorological Organization (WMO), the phenomenon will be "of moderate to strong intensity."

QCOSTARICA – The La Niña climate phenomenon has developed and is expected to last into next year, affecting temperatures, precipitation and storm patterns in many parts of the world, according to the World Meteorological Organization (WMO).

According to the WMO a specialized UN agency, this year’s La Niña is expected to be moderate to strong. The last time there was a strong event was in 2010-2011, followed by a moderate event in 2011-2012.

- Advertisement -

That intense episode caused torrential rains in Australia, South America, and South Asia.

In 2008-2009, La Niña was responsible for freezing temperatures that caused dozens of casualties across Europe.

The global declaration of a La Niña event is used by governments to mobilize planning in climate sensitive sectors like agriculture, health, water resources and disaster management. WMO is now stepping up its support and advice for international humanitarian agencies to try to reduce the impacts among the most vulnerable at a time when coping capacities are stretched by the COVID-19 pandemic.

La Niña refers to the large-scale cooling of the ocean surface temperatures in the central and eastern equatorial Pacific Ocean, coupled with changes in the tropical atmospheric circulation, namely winds, pressure and rainfall. It usually has the opposite impacts on weather and climate as El Niño, which is the warm phase of the so-called El Niño Southern Oscillation (ENSO).

- Advertisement -

“El Niño and La Niña are major, naturally occurring drivers of the Earth’s climate system. But all naturally occurring climate events now take place in against a background of human-induced climate change which is exacerbating extreme weather and affecting the water cycle,” said WMO Secretary-General Professor Petteri Taalas.

“La Niña typically has a cooling effect on global temperatures, but this is more than offset by the heat trapped in our atmosphere by greenhouse gases. Therefore, 2020 remains on track to be one of the warmest years on record and 2016-2020 is expected to be the warmest five-year period on record,” said Professor Taalas. “La Niña years now are warmer even than years with strong El Niño events of the past.”

WMO’s new ENSO Update states there is a high likelihood (90%) of tropical Pacific sea surface temperatures remaining at La Niña levels through the end of 2020, and maybe through the first quarter of 2021 (55%). This follows more than a year of neutral ENSO conditions (i.e., neither El Niño nor La Niña). The Update is based on forecasts from WMO Global Producing Centres of Long-Range Forecasts and expert interpretation.

It is important to note that El Niño and La Niña are not the only factors that drive global and regional climate patterns. No two La Niña or El Niño events are the same, and their effects on regional climates can vary depending on the time of year and other factors. Therefore, decision makers should always monitor latest seasonal forecasts for the most up to date information.

La Nina 2020 Impacts North America, Central America and the Caribbean

- Advertisement -

In North America, La Niña typically brings above-average along the northern tier of the continent along with below-average precipitation and across the South. The latest forecast model results are consistent with this historical impact analysis.

In the Caribbean, La Niña events can contribute to an increase in intensity of the hurricane season.  The 2020 season has been one of the most active on record so far.

South America

In South America, La Niña can bring above normal rainfall across large parts of the north of the continent whereas further south below normal rainfall can be experienced on both the eastern and western coasts.

The 2020 La Niña event shows very similar characteristics, with the northern part of the continent likely to see above normal rainfall whereas much of the southern cone is likely to see below normal rainfall.
 

 

- Advertisement -

FACT CHECK:
We strive for accuracy in its reports. But if you see something that doesn’t look right, send us an email. The Q reviews and updates its content regularly to ensure it’s accuracy.

Ricohttp://www.theqmedia.com
"Rico" is the crazy mind behind the Q media websites, a series of online magazines where everything is Q! In these times of new normal, stay at home. Stay safe. Stay healthy.

Related Articles

Pacific and Central Valley will have intense downpours Pacific and Central Valley will have intense downpours at the beginning of the week

QCOSTARICA - The national weather service, Instituto Meteorológico Nacional (IMN) reported...

Alert in Colombia due to the start of the first rainy season

Q COLOMBIA – In less than two weeks, Colombia enters its...

MOST READ

Colombia surpasses 80,000 COVID-19 deaths; ICU’s nearly full

QCOLOMBIA – Confirmed deaths from COVID-19 in Colombia passed 80,000 on Friday, May 14, with intensive care units almost full in the biggest cities,...

Health expands group 3 vaccination for people from 16 to 58 years

QCOSTARICA - Adolescents of 16 and 17 years old with some risk factor in case of falling ill with covid-19 will be part of...

Farmer’s fairs remain fertile despite the effects of the pandemic

QCOSTARICA - Despite the effects of the pandemic, "ferias" (farmers fairs) that are a staple on weekends across the country, from small towns to...

Keltner Channel Strategy Explained for Beginners

The trading world is full of trading strategies that vary by assets, timeframes, and, of course, technical indicators. In this article, you will learn...

72 cantons on orange alert due to high risk of COVID-19 contagion

QCOSTARICA - The National Commission for Risk Prevention and Emergency Attention (CNE) has increased alerts for another 7 cantons, bringing the total to 72...

Q Media supports AmCham initiative to request donation of vaccines to the United States

QCOSTARICA - The Costa Rican North American Chamber of Commerce (AmCham) this week began a Change.org petition to collect signatures to ask the United...

Guide to the COVID Travel Restrictions for Central America

QCOSTARICA - A country-by-country guide to the current Covid travel restrictions for Central America guidelines during the COVID-19 crisis. Costa Rica (open) Costa Rica opened its...

Three thousand hospitalized by the end of May, UCR projects

QCOSTARICA - On Monday, the Ministry of Health reported 1,280 people in hospital with covid-19, of which 466 of them in an ICU, aged...

Protesters tried to block roads, but Police prevented closures

QCOSTARICA - Small groups of protesters tried to block several routes in the country on Monday, but the Fuerza Publica (National Police) managed to...

WANT TO STAY UP TO DATE WITH THE LATEST!

Get our daily newsletter with the latest posts directly in your mailbox. Click on the subscribe and fill out the form. It's that simple!

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.