Polar Vortex Forecast Map 2025 Forecast. A lobe of the polar vortex is going to swing through ontario just north of michigan. The cger has provided maps of the polar vortex forecasts both for the northern hemisphere (n.h.) and the southern hemisphere (s.h.) using the forecast data of the ncep (national.

The cger has provided maps of the polar vortex forecasts both for the northern hemisphere (n.h.) and the southern hemisphere (s.h.) using the forecast data of the ncep (national. The beginning of 2025 will be marked by the year’s first polar vortex, bringing snow, storms, and frigid temperatures that will impact the majority of the country and millions of americans.