he New US winter climate outlook Marked by key update: The La Niña phenomenon will continue to become more active. and will determine much of the atmospheric movement between December and February. In that sense, the National Oceanic and Atmospheric Administration (NOAAEnglish acronym) confirmed that this phenomenon affects North American countries with weak signals, but not enough. Change temperature, rain, and snowfall.
The NOAA Climate Prediction Center reported: La Niña has been going on for the past few weeks.the surface temperature of the equatorial Pacific Ocean continues to be below normal levels.
The weekly index marked values indicating negative subsurface anomalies extending up to 200 meters from the surface. This oceanic signal included stronger trade winds at lower levels and westerly winds at higher levels, a typical pattern for the phenomenon.
The agency explained that this behavior of the atmosphere and ocean confirms that: The system remains linked to La Niña, The effect is projected in the following direction: northern winter.
Models analyzed by NOAA showed that: This episode will run from at least December to February. of the probability The La Niña phenomenon will continue for that period. reached 51%.
During the January-March transition period, the probability of returning to neutrality rose to 61%. Experts emphasized that: This is a weaker stage and reduces the strength of typical impacts.However, it does not remove them from the map.
in a dialogue with USA Todaysaid John Gottschalk, director of operations at the Climate Prediction Center. This event will be “a major driver of winter weather in the U.S.”even in less intense formats.
American media emphasized that: The La Niña phenomenon is ENSO cyclealternating phases of warmer and cooler waters occur in the Pacific Ocean. Although the changes seem subtle, You can completely change the behavior of rain, snow, wind and temperature on earth.
Gottschalk explained: The effect is thought to be more pronounced in the cold season. And that will directly affect the forecasts released by federal agencies. He also explained: Usually, La Niña conditions intensify Atlantic cyclone activity, but this year it has no effect. Because hurricane season is effectively over.
NOAA has drawn a panorama showing clear trends by region. in the south country of north america, Warm weather is expected for California and much of the East Coast More than usual. in contrast, Pacific Northwest and upper Midwest face colder winter.
The Prediction Center also showed that: Precipitation increases in the northern Rocky Mountains and surrounding Great Lakeswhile the southern part of the country in North America, especially Dry weather will continue in the Southeast.
Snowfall amounts also reflect this normal La Niña imbalance. There is a lot of snow in the north and less snow in the south.. The agency recalled that its forecast spans December, January and February, corresponding to a meteorological winter.
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