Climate Patterns A Look At La-nina And Its Impact On The Climate

This post we will take a deeper look into the climate impacts of La-Nina


            La-Nina the counterpart of El-Nino, having the exact opposite impacts that are seeing during an El-Nino. La-Nina, let’s examine some of the impacts that are seeing, starting with the Pacific Ocean waters, El-Nino warms these waters, while La-Nina cools these waters.  La-Nina also occurs at intervals and not every year. La-Nina also needs to be taken into consideration when working with climate numbers.

            For example, La-Nina along the Gulf Coast of the United States can lead to warm winters along with dry winters, so again this can impact the climate numbers by providing the region with warmer weather and

drier weather than normal. So if we think about the thirty year average climate set, we can note that La-Nina can also happen multiple times during this event, leading to altered climate numbers.

            So if we take a further look at the MS Gulf Coast and use just our samples again listed below, we can note the changes in temperatures from average, which this time supports warmer than average.      


Year                 Event               Average Monthly Temp          Recorded Average Monthly Temp

2011                La-Nina                        61.73F                                     63.5F   (Above Average)

2010                Neutral                        61.7F                                       56.9F   (Below Average)

2009                El-Nino                                    61.7F                                       58.3F   (Below Average)

2008                La-Nina                        61.7F                                       64.3F   (Above Average)

*Table derived from my personal weather station temperatures.


            Now, to examine how these ENSO phases can impact our climate, we can note that in a given thirty years we could have three El-Nino events, plus three La-Nina events along with normal years or neutral events, all of these will bring a certain set of numbers to the climate set, El-Nino will bring the MS Gulf Coast usually cooler numbers, while La-Nina brings warmer numbers and Neutral can bring either or, depending on other aspects of the climate cycle such as the solar radiation.

The ENSO Experiment


            For this part of the chapter we are going to mix multiple things together from the solar radiation levels to the ENSO Phase and see what does and could take place on earth.


So far in this book we have talked about solar radiation and ENSO, now let’s take a look at what happens when you put the two together and some possible results that could take place.


EXP #1: (Solar Max/ El-Nino/Location: MS Gulf Coast)

If we have a solar max that means we are receiving a strong influx of solar radiation to the earth, hence the solar max, so will go ahead and rate that has “HOT” for this test, next we notice that we have El-Nino, the impacts of El-Nino on the MS Gulf Coast usually indicate cooler weather, rainy weather so will rate it as “COOL”.  This combination could have an outcome for the Gulf Coast with, heavier rains, extreme flooding potentials as more rainfall is inserted into the atmosphere due to the stronger solar radiation. Remember this is just a possible scenario for the Gulf Coast not the entire globe.

EXP #2 (Solar Min/ El-Nino/Location: MS Gulf Coast)

Now we are looking at a solar min, so less radiation heading towards the earth than during a max, so we will give this a “COOL” rating for the test, now we look at El-Nino  also a “COOL’ in the rating, so this time we are looking at two climate factors both being cool, this could lead to a much different outcome such as colder weather, snowy weather for the Gulf Coast it has happened before.

-Of these two experiments number 2 supports a cooler outcome due to having two cool factors, while number 1 is a tad bit warmer due to having a hot as one of the parameters.

EXP#3 (Solar Max/ La-Nina/ Location: MS Gulf Coast)

So we have a solar max, solar radiation very high, so will rate that as “HOT” and now we add La-Nina to the formula, for the MS Gulf Coast that is another “HOT” so we now have two hot’s to work with, that would spell a drought disaster for the Gulf Coast, it has happened before.


EXP#4 (Solar

Min/La-Nina/Location: MS Gulf Coast)

For this run we are now looking at less heat, due to the sun being in its solar min, so will give this parameter a “COOL”, while La-Nina for the Gulf Coast is still a “HOT” so we have a cool and a hot together, some possible outcomes are a weaker La-Nina, a tad bit more moisture and possibly more severe weather events.

So just looking at these four possible setups you can see how are climate can be further altered by just these two climate factors, that dictate moisture amounts and temperatures, which are both  part of the climate formula.


These experiments are just to be used as food for thought when thinking about climate.


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