The Weather Blog

April 19, 2009|By FRANK ROYLANCE | FRANK ROYLANCE,frank.roylance@baltsun.com

Jeff Brauner writes from Baltimore: "What is an 'occluded front'? Is that sort of an old-fashioned term that modern meteorologists don't use much anymore?" Occluded fronts occur when cold fronts sweep counterclockwise around a low-pressure center and overtake slower warm fronts on the other side, lifting the warmer air. Meteorologists do use it. Maybe they skip it in forecasts to avoid explaining it.

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