A bar is a metric unit of pressure and isobars are lines on a weather map that connect points of equal air pressure. Because variations in air pressure drive atmospheric winds, isobars give ...

MILWAUKEE -- Probably, at some point in your life, you've seen a weather map similar to the picture below. It has red Ls and blue Hs all over the place, representing low and high pressure. Looking ...

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Terry Eliasen is a meteorologist and executive producer of the WBZ-TV Weather Team. He has worked at WBZ for more than 20 years. Most times we ignore it, sometimes we fear it, but bottom line, wind is ...

On this week's Weather Wonders episode, Jack asked, "Why do we have different weather changes?". To answer this question, we have to look at high and low pressure systems, as well as, warm and cold ...

The same wave in the jet stream can lead to strong winds, blowing dust and fire danger in one region, while triggering a tornado outbreak and a blizzard in other regions. Windstorms can seem like they ...

TAMPA, Fla. — As we continue to watch Hurricane Milton's track toward Florida, you may hear our 10 Tampa Bay meteorologists on TV talk about the low pressure at the center of the storm. But, what does ...

Surface pressure troughs are elongated areas of low pressure that indicate a wind shift and pressure change, similar to a front, and represent surface convergence. Unlike fronts, most troughs depicted ...