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Average sea surface temperature anomalies over the equatorial Pacific Ocean for the week centred on May 5, 2021 compared to 1981-2010 base period. (CPC.ncep.noaa.gov)

La Nina done, U.S. CPC says

Neutral weather likely through summer

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Reuters — A U.S. government weather forecaster said on Thursday La Nina has ended and El Nino-Southern Oscillation (ENSO) neutral conditions are likely to continue through the Northern Hemisphere summer. “ENSO neutral” refers to periods in which neither El Nino nor La Nina is present, often coinciding with the transition between the two weather patterns, […] Read more
Abnormal La Nina plays havoc with weather predictions
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Abnormal La Nina plays havoc with weather predictions

Spring is expected to be wet, with a drier summer, says meteorologist

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Farmers are likely to get one more hit of winter before the weather clears up for spring planting. The polar vortex could be forced back into the middle of North America by another building high pressure system, says Mike McClellan, of Mobile Weather Team Inc., during a recent webinar put on by Great Lakes Grain. […] Read more
Average sea surface temperature anomalies over the equatorial Pacific Ocean for the week centred on Oct. 28, 2020 compared to 1981-2010 base period. (CPC.ncep.noaa.gov)

WMO officially calls a La Nina winter

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MarketsFarm — A La Nina weather event has officially developed in the Pacific Ocean and is expected to continue into 2021, affecting temperatures, precipitation and storm patterns around the world, according to the World Meteorological Organization (WMO). The global declaration of the La Nina event by the United Nations’ agency will be used by governments […] Read more
Sea surface temperature (SST) anomalies over the southern Pacific for the week centred on Sept, 30, 2020. (CPC.ncep.noaa.gov)

La Nina to bring colder, drier winter

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MarketsFarm — There’s a La Nina poised to exert influence on the coming North American winter, according to Drew Lerner, senior agricultural meteorologist for World Weather Inc. in Kansas. A La Nina generates colder-than-normal temperatures, as opposed to the warm temperatures garnered from an El Nino. Both weather phenomenon can be found over the Pacific […] Read more
Average sea surface temperature anomalies over the equatorial Pacific Ocean for the week centred on Sept. 2, 2020 compared to 1981-2010 base period. (CPC.ncep.noaa.gov)

La Nina present, 75 per cent chance seen through 2020 winter

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Reuters — La Nina conditions were present in August, and have a 75 per cent chance of continuing through the Northern Hemisphere winter of 2020-21, a U.S. government weather forecaster said on Thursday. The La Nina pattern is characterized by unusually cold temperatures in the equatorial Pacific Ocean. A borderline moderate La Nina event is […] Read more
Sea surface temperature anomalies over the equatorial Pacific Ocean for the week centred on July 1, 2020. (CPC.ncep.noaa.gov)

U.S. forecaster says La Nina expected to develop in fall 2020

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Reuters — A U.S. government weather forecaster on Thursday forecast the development of a La Nina pattern during the August-October season, which is expected to persist through the remainder of 2020. There is about 50-55 per cent chance of La Nina developing during the Northern Hemisphere fall, with a 50 per cent chance it will […] Read more
Sea surface temperature anomalies on the tropical Pacific Ocean for the week centred on May 20, 2020. (CPC.ncep.noaa.gov)

El Nino, La Nina patterns not seen prevailing during summer

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London | Reuters — Sea surface temperatures in the tropical Pacific remain neutral, meaning that neither El Niño nor La Niña weather patterns are prevailing, the U.N. World Meteorological Organisation said on Thursday. The El Niño pattern brings a warming of ocean surface temperatures in the eastern and central Pacific every few years, and is […] Read more
Sea surface temperature anomalies (°C) over the tropical Pacific for the week centred on March 4, 2020. (CPC.ncep.noaa.gov)

U.S. forecaster sees 65 per cent chance of no spring El Nino, La Nina

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Reuters — There is about a 65 per cent chance that neutral weather conditions will prevail in the Northern Hemisphere this spring with no El Niño or La Niña, up from 60 per cent last month, a U.S. government weather forecaster said on Thursday. The El Niño-Southern Oscillation-neutral (ENSO) weather pattern is marked by average […] Read more
El Nino seen transitioning to neutral in next month or two

El Nino seen transitioning to neutral in next month or two

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Reuters — The El Nino weather pattern is likely to transition into ENSO-neutral conditions in the next month or two, a U.S. government weather forecaster said on Thursday. “ENSO-neutral” refers to periods in which neither El Nino nor La Nina is present, according to the National Weather Service’s Climate Prediction Center (CPC). ENSO-neutral conditions are […] Read more
Averaged global sea surface temperature anomalies (in degrees Celsius) for the week centred on May 2, 2018. (NOAA Climate Prediction Center graphic)

El Nino pattern could emerge by 2018-19 winter

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Reuters — The El Nino weather pattern, associated with warmer and wetter weather than usual that may give rise to damaging conditions, could emerge by the 2018-19 Northern Hemisphere winter, with neutral conditions expected to prevail through November this year, a U.S. government weather forecaster said on Thursday. The last El Nino, a warming of […] Read more

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