Punxsutawney Phil, the legendary weather-forecasting groundhog from Punxsutawney, PA, saw his shadow Sunday morning, thus ...

Another global feature we want to study and try to forecast is the Arctic Oscillation (AO). This is a climate pattern that helps to determine the shifts in pressure between the Arctic and the mid ...

This has been the case during the second week of January 2025 with the Arctic Oscillation and North Atlantic Oscillation going negative - which sent Arctic air spilling into the Deep South.

Abstract: The Arctic Oscillation (AO) controls winter climates in the Northern Hemisphere to a large extent. Positive AO brings lower/higher surface temperature and higher/lower precipitation in ...

The jet stream’s new, less wavy path blocks frigid air from reaching as far south, providing a much-needed break from the ...

Clouds return late ahead of the next snowmaking system. A large pattern of weather called the Arctic Oscillation is responsible for the cold and unsettled weather that's been moving through the U ...

The two most important patterns impacting us now are the Arctic Oscillation…or A-O, and the Pacific North-American Oscillation often shortened to the PNA. The technical name for these patterns ...