Sound the foghorn for patchy, dense fog across our area. A dense fog advisory in place until 9 a.m. for Waukesha, Jefferson, Dodge, Washington, Rock and Walworth counties. Use your low beams and ...

Because the sound wave from a foghorn travels over water, through still, moist air, it can be heard from several miles away. From that distance, the sound softens into a low mournful wail.

That's when she heard the foghorn. The sound blared repeatedly. It didn't sound close from up on the crest of Maple Leaf, the third-highest point in Seattle, Raymond said, ...

Sound the foghorn! A Dense Fog Advisory in place through 10am for all of southeast Wisconsin. Visibility in many locations near zero. But, at this time conditions are beginning to improve.