The polar vortex is acting up - NOAA Climate.gov
Jan 16, 2024 · The latest forecast says a major disruption of the polar vortex is on its way, but the stratosphere has been acting up for a while. Our bloggers explain what it might mean for U.S. weather.
Understanding the Arctic polar vortex - NOAA Climate.gov
Mar 5, 2021 · Polar vortex expert Amy Butler and Arctic expert James Overland offer perspectives on the February cold snap in the southern U.S., the polar vortex, and how the Arctic might influence mid …
But what does a polar vortex breakdown look like down here?
Feb 29, 2024 · Sudden stratospheric warmings (and sometimes just the phrase “polar vortex”) are often associated with cold and snowy weather; and indeed, anomalous cold is evident over some regions …
Predicting the chances of a polar vortex disruption this winter
Dec 19, 2024 · What are the odds of a stratospheric polar vortex disruption this winter? We take a look at two things that help predict our chances for this extreme event.
Cooking up a stratospheric polar vortex disruption
Jan 8, 2024 · When the polar vortex is shifted or stretched out off the pole to lower latitudes, it can sometimes help reinforce wintry weather outbreaks. NOAA Climate.gov image, based on Global …
Polar Vortex Intensifications: the overlooked influencer
Jan 30, 2025 · The disruption and weakening of the polar vortex winds do increase the odds of a cold air outbreak across the eastern US and northern Europe/Asia (but they don’t guarantee it). However, the …
Welcome to the Polar Vortex Blog! - NOAA Climate.gov
Dec 5, 2023 · Because the air within the polar vortex is generally much colder than the air outside of it, the polar vortex shows up on maps of atmospheric thickness ("geopotential height") as a region of …
Images and Media: polar-vortex-forecast-December-January-2025.gif ...
Dec 19, 2024 · For the GEFSv12 forecast issued on 18 December 2024, the winds at 60 degrees North (the mean location of the polar vortex) are forecast to remain stronger than normal for at least the …
An early but interesting end to the 2024-25 polar vortex season
Apr 3, 2025 · One way to track the polar vortex is through potential vorticity, which describes the amount of rotational energy, or "spin," in a parcel of air. This animation shows daily potential vorticity in the …
U.S. climate outlook for February 2025 - NOAA Climate.gov
Feb 3, 2025 · U.S. map of predicted drought changes or persistence in February 2025. A few new areas of drought are likely to develop (yellow) across portions of the Southeast and Southwest.