One knot equals 1.1 mph. The red flags indicate wind direction. For up-to-date maps of the jet stream (and other weather-related maps) visit the FNMOC Web site.

Although the U.S. will see a milder pattern this week, there's probably cold, stormy weather still in store for us this winter. Large-scale weather and climate patterns, guided in part by the jet ...

The jet stream, one of the most dramatic forces of nature, was discovered during World War II when aviators first tried to cross the Pacific. This strong wind current is often defined as upper ...

A very strong jet stream will cut some flight time off flights heading to the Northeast, but make for some turbulent times ...

As meteorologists prepare the winter forecast, the jet stream emerges as a significant factor. These fast-moving air currents, found mainly in the mid- and upper-latitudes of both hemispheres, ...