Is 2011-2012 a la Nina

Answer 1

According to the Scripps Institute, La Nina conditions (ie eastern pacific cooling) are likely to persist until the middle of this year. El Nino is forecast to become the prevailing phase in the end of the year and the beginning of next (2010) See http://meteora.ucsd.edu/~pierce/elnino/pictures.html The Australian Bureau of Meteorology seems to concur. They publish several different researchers computer modelling, and La Nina will remain for another few months, it may then be neutral or starting an El Nino later in the year, See http://www.bom.gov.au/climate/ahead/ENSO-summary.shtml So to answer your question, 2009 is not an El Nino year as such, but it may see the start of one, leading on to 2010, which presumably will be an El Nino year. Dr J K Monro, Wellington.

Answer 2

Yes, the 2011-2012 period was categorized as a La Niña event. La Niña is a climate pattern that occurs when sea surface temperatures in the central and eastern equatorial Pacific Ocean drop below normal levels, leading to cooler-than-average sea surface temperatures.

Answer 3

2010 began as a moderate El Nino and transitioned into a strong La Nina by the second half of the year. It is showing signs of peaking as of December 2010, but its effects will be felt through the boreal winter and spring.

Answer 4

2001 was mostly a "La Nada" year, or in other words, conditions were about as normal as they can be over the course of the year. Just about every other month was on the opposite side of neutral mark, meaning it fluctuated between a very weak La Nina and El Nino throughout the year, with neither able to manifest themselves through any type of global weather impacts.

Answer 5

2009 started as a La Nina and shifted into an El Nino.

Answer 6

We had a moderate-strong El Nino peak early this year which has now transitioned into a La Nina. The La Nina is expected to persist through the remainder of the year and well into next year.

Answer 7

According to NOAA, the 2010/2011 season is a "La niña" year, not an "El niño year." I.e., the waters in the eastern pacific are cooler than average.

Answer 8

i think is La Nina but Im not completely sure

Answer 9

La Nina to start, though it is weakening and could become a weak El Nino by year's end.

Answer 10

2008 was a La Nina year.