What Is A Warm Front?

Tools

By By Steve Pool

SEATTLE - As we mentioned in March 5th's column, a front is a boundary between warm air and cold air. With a warm front, you have an area of warm air moving in over colder air. You can pick them out on weather maps as red line with red semi-circles.

Since warm air is lighter than cold air, the warm air will ride over the top of the colder air, where it will cool, condense, and squeeze out moisture.

Warm fronts are generally weak weather-makers, bringing in a steady light rain or drizzle. It can also create fog as the warm air condenses as it meets up with the colder surface air. Since cold air is heavy and tough to budge, warm fronts can be slow-movers, keeping the rains around for dozens of hours.

For More Information:

www.usatoday.com.

Your Photos

YouNews World Series pumpkin World Series pumpkin
Every year the SF Giants are in the play offs it carve a pumpkin in their honer. This year I switched it up and added our opponents logo along with the World Series trophy. I hope to see my pumpkin on tv to share with all baseball fans.
YouNews AR2192 update AR2192 update
Sunspot AR2192 has grown to almost the size of Jupiter in this 2-day comparison. Image on the left was taken Sunday
Oct.19 and the image on the right was taken Tuesday Oct.21.