We’ll be discussing the Pacific North American Pattern, also known as the PNA, in this edition of Weather Tidbits. The PNA is ...

This heating causes warmer, less dense air to rise, while cooler, denser air rushes in to fill its place, creating a current of air in the upper atmosphere known as the jet stream.

Jet streams are often referred to as the "motor" of global weather: High-altitude wind currents steer areas of high and low pressure, playing a crucial role in shaping our weather. However, how these ...

In this weather map compiled by the National Weather Service's Storm Prediction Center, a fluctuating jet stream allowed the movement of a cold front across Texas on Nov. 18, 2024.