What Is A Gust Front?

Tools

By By Steve Pool

SEATTLE - While fairly rare around here, gust fronts are like miniature windstorms that can be a side effect of a strong thunderstorm nearby, and can also be a sign that you're about to get very wet.

During a very heavy rainstorm, the downward force of the falling rain creates a cool, strong, sinking wind. As this rush of air reaches the ground, it races outward ahead of the storm.

Thus, someone standing ahead of the storm will get a rush of cold air preceding the thunderstorm. That's known as a gust front. Some of the strongest storms can create gust fronts with wind speeds over 80-100 mph.

Gust fronts can also spawn a secondary storm near the original thunderstorm. As the cold air rushes outward, it can force the warm air on the ground to rise up and condense, leading to additional thunderstorm development.

Your Photos

YouNews Seattle Skyline Seattle Skyline
A little night shooting from the waterfront.
YouNews Weekend Planets and Moon Weekend Planets and Moon
These images were all taken over the weekend of April 14 & 15. The images of Jupiter, Saturn and Mars are in the correct size ratio. The 2nd photo is a size comparison showing the correct size ratio with the moon.