Jan 17, 2025 · These warming events help destabilize the polar vortex, weakening the rotating force holding the cold air north and allowing it to shift southward.

Jan 5, 2025 · Studies show a fast-warming Arctic gets some of the blame for the increase in polar vortex stretching or wandering.

Jan 7, 2025 · Arctic winds from a powerful polar vortex are sweeping across several states, bringing dangerously cold temperatures and severe weather conditions.

Jan 15, 2024 · In the picture: Forecast models showed significant stratospheric warming heading into January, 2024. This led to displacement of the polar vortex (located toward the North …

Jan 8, 2025 · The plunging polar vortex is bringing subfreezing temperatures to some of the southernmost points of the U.S. A forming storm system is threatening to dump snow on parts …

Jan 18, 2025 · This allows the polar vortex to weaken and shift, enabling cold air to move southward. Waves or weather systems can then carry this cold air, leading to cold snaps in …

Jan 8, 2025 · A mix of sleet, snow and freezing rain is expected to fall on a stretch of the U.S. from New Mexico to Alabama starting Wednesday night and early Thursday, with the heaviest …

Jan 16, 2025 · 1. The polar vortex strength, as measured by the speed of the winds around the 60N latitude circle and 10 hPa pressure level, remains stronger than average, and is currently …

Dec 31, 2024 · Multiple rounds of frigid, arctic air could sweep across the eastern half of U.S. in the coming weeks, ushering in an abnormally cold start to 2025. The first blast of bitter cold …

Jan 16, 2025 · The potentially life-threatening cold is due to the disrupted polar vortex. The FOX Forecast Center said a lobe of the polar vortex will dip to the south and move into the U.S. this …