Wednesday, February 12, 2020

El Nino/La Nina update - early spring moisture

It's been several months since we touched on the status of El Nino/La Nina out in the Pacific. As a reminder, this refers to the water temperatures along the equator out in the Pacific. Warmer than normal water is El Nino, while colder than normal would be La Nina.

You've seen me talk about them before and they have profound impacts on weather here in the United States.

Currently, we are in between (or "neutral") where water temperatures are pretty close to normal. If you look in the box below, there's not an overwhelming amount of orange or blue, which would be the case if we had an El Nino or La Nina, respectively. 

By all accounts, it looks as if the neutral phase will continue through spring and almost all of our summer. Neutral phase doesn't necessarily mean anything in terms of what kind of severe weather season we might have, but going into summer, it does lessen the chances of drought conditions for the Plains. That normally sets up in a La Nina phase, and we don't see that happening soon.

An early spring outlook for moisture suggests a wet spring could be in the works. The areas shaded in blue would be 3-6 inches above normal spring rains. Even though this is just one snapshot to look at, given the continued active weather pattern, one might expect there to be some truth to what we are seeing here. Again, whether that translates to a bunch of severe thunderstorms, that's not very clear.

Focusing on our current weather, we are about to have a big blast of cold coming in for Thursday. 

The cold air diving south across the USA will be felt all the way to the Gulf coast. Much of the area will be 15 to 25° below normal. This won't likely set records, but it will rank up there with some of the coldest of the season.

Be ready for wind chills Thursday morning, down in single digits below zero in central and eastern Kansas.

We do get a nice rebound coming up into the weekend, but we still have more chilly air coming next week. Winter (I have a feeling) won't be going away without a fight this year.

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