Bath,Pa.

"N O T E" All weather articles written by the author, weather records for Bath, Pa. USA, graphs, graphics, pictures, are copyrighted and are owned by the author. If you make use of data from this site, please make reference to the: Station Licensee: Virginia T. Giannetta. Owner - Author: Charles A. Giannetta. Computer Consultant: Charles E. Giannetta & This Web Site. Thank you.

Fronts

1. Front: A transition zone between two air masses of different densities.

2. Density is controlled by the temperature and humidity of the air. -------------------------------------------------------------------------------------------------

Cold Fronts

1. Cold Fronts slope on the average 1:80 miles. This means that 80 miles into the surface position of the front, the frontal boundary is about 1 mile above the ground.

2. Cold Fronts may be divided into 2 types: Fast moving and slow moving.

4. A fast moving Cold Front may move along at 50 to 60+ mph.

5. Cold Fronts usually move faster in winter than summer.

6. The average speed of a Cold Front is about 30 mph.

1. A Squall Line is an area some 50 to 200 miles ahead of a front.

2. It is characterized by a formidable wall of turbulent clouds building to 40,000 feet or higher.

3. Squall Lines contain some of the most violent and turbulent weather known.

4. Squall Lines are usually parallel to a front.

1. The edge of an advancing warm air mass is called a Warm Front.

2. Warm air rides up and over colder air since it is less dense.

3. Warm Frontal Slopes average about 1:200 miles. This means that when the warm front is located on the surface, 200 miles ahead of it the warm air is about 1 mile up.

4. Warm Fronts usually move about 15 to 20 mph.

More On Fronts

© 1998 Charles A. Giannetta

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