GFM Network News


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

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,

Thunderstorms require a significant difference in temperature between two areas, such as when a front cuts through a region.

Thoughts on thunderstorms and a warm March

Just having a very hot day doesn’t create the conditions for a storm

The phrase “If you don’t like the weather, wait a minute” is never so true than during the spring across the Prairies and so far, this spring is living up to the saying. As we get ready for May, thoughts begin to switch from snowstorms and cold snaps to heatwaves and thunderstorms. So for this


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

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

La Nina winters have a slightly higher-than-average chance of being cooler and wetter than average.

La Nina and the winter forecasts

Canada’s CanSIPS model still calls for a warmer-than-average October

Icannot believe another month has come and gone. Sometimes it seems like it was the longest month ever and other times it felt like one of the fastest. September’s weather kind of mirrored my feelings. Sometimes it seemed like fall was here to stay and at other times summer tried to make a comeback. The question is whether

A surfer walks into the Pacific Ocean at Hermosa Beach near Los Angeles on Sept. 4, the first day of a record heat wave in the area.

The Pacific Ocean’s impact on our weather

In a La Niña event, sea surface temperatures cool down in spots that are usually warm

In the last issue, I pointed out that La Niña conditions have developed across the Pacific Ocean and these conditions have sustained themselves for three months, meaning we are now into a La Niña period which is forecast to last through most, if not all, of the winter. Before we look to see how this


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

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

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

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



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

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