2024 2024 Midwest Winter Forecast. Early data shows that the polar vortex is likely to be weaker than normal in the winter of 2024/2025. Temperatures dropped to minus 20 or lower across portions of the midwest and upper plains early friday, and the cold air is forecast to spread into the deep south through the weekend,.
A weaker polar vortex usually means a weaker jet stream, which increases the. Early data shows that the polar vortex is likely to be weaker than normal in the winter of 2024/2025.