Polar Vortex February 2025 Map. Today’s upper air map showing the pattern at 20,000 feet with a large ridge of high pressure stretching from hudson bay south to the gulf, keeping any cold in the west and any. I have been describing the pv variability as “lather, rinse, repeat” and for the most part that seems to be true.

This contains the colder air into the arctic circle, creating milder conditions for most of the. In contrast, a weak/disrupted polar vortex creates a weak jet stream pattern.