If a strong 300 mb polar jet is located across the GA/FL border, what weather would I expect in Atlanta, which is north of the jet?

• A. Warmer than normal temperatures
• B. Colder than normal temperatures
• C. Normal temperatures
• D. Rainy and humid weather

Answer: (B)

A strong polar jet at the 300 mb level typically indicates significant weather patterns influenced by cold air masses and dynamic conditions in the upper atmosphere. When the polar jet is positioned across the GA/FL border, areas to the north, such as Atlanta, are often under the influence of the colder air that the jet brings with it.

As the polar jet stream represents a boundary between cold air to the north and warmer, moist air to the south, being located north of the jet implies that Atlanta would experience the effects of the colder air mass. This is especially true if the jet is strong, as it can create favorable conditions for the development of low-pressure systems, which can lead to enhanced lifting and cloud formation, potentially resulting in precipitation.

In summary, the presence of a strong polar jet influences the weather by bringing colder air to areas located north of its path, leading to colder than normal temperatures in locations like Atlanta.