Convective outflow boundaries, or gust fronts, are mesoscale cold fronts generated by thunderstorm downdrafts that can cause severe turbulence, low-level wind shear, and strong, gusty surface winds.

An outflow boundary, or gust front, is a mesoscale cold front formed by cold air spreading outward from thunderstorm downdrafts, marked as a tan dashed line on surface analysis charts. These ...

Outflow boundaries, sea breeze fronts and upper-air dynamics can also provide enough lifting to initiate convective development in an unstable atmosphere. Thunderstorm Organization Thunderstorms in ...

Mesoscale convective systems (MCS) are common across Canada during the summer. Here’s a look at these storms and how they form Blazing summertime heat can lend thunderstorms a mean punch. Vivid ...

In early February 2024, a powerful Atmospheric River (AR) struck Southern California, unleashing record-breaking rainfall that prompted a state of emergency, widespread evacuation orders, and left ...

Mesoscale convective systems (MCS) are common across Canada during the summer. Here’s a look at these storms and how they form ...