So what Megan is referring to here are the different circulations around us (see below) that can impact our weather over the La Nina pattern. We can predict la Nina pretty far in advance but what you don’t know in advance is all these other different oscillations that can really only be predicted on a 3-4 week timescale… where we can really start to see what they’re gonna look like.” “Every La Nina is going to look a little bit different.
Megan Jones is the Climate Program Leader at the National Weather Service office in Bismarck, You may wonder why would this winter be different than last winter if we’re under the La Nina influence again?. Which doesn’t necessarily mean we’ll see normal snowfall. NOAA winter temperature outlookĪs far as precipitation, there aren’t signals either way. Knowing the typical La Nina winter and based on trends, they’re going with a colder than normal winter for western North Dakota.
The National Oceanic and Atmospheric Administration, or NOAA, has put out its outlook for winter. When we do have above or below normal snowfall, it’s usually from other regional factors. La Nina doesn’t have any signals either way for higher or lower snowfall. In a typical La Nina winter, we see colder than normal temperatures. That then changes the air pressure patterns around the globe. This cool air is changing the temperature of the air above the water. Right now, the water is colder than normal, this is the La Nina phase. We start with the water in the equatorial Pacific. But it doesn’t at all mean that we’ll have a similar winter. This year, we’re set up similar to last year with a La Nina pattern.
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