Air masses can change depending on their surroundings, and when combined, they can create active weather conditions, such as severe thunderstorms and strong cold fronts. Maritime Tropical (mT ...

This air mass originates in the Sahara Desert. In tropical latitudes this air mass is hot to very hot, with low relative humidity, bringing stable weather. As the ITCZ moves north it carries the ...

MONTANA - The Bozeman area is experiencing ongoing heavy snowfall due to a westerly flow following a surface trough, causing upslope conditions in the Gallatin Valley. As of 2:00 p.m., ...

For example, the Polar Maritime Air Mass originates in the Poles and travels over the Arctic Sea, therefore it brings cold and wet weather. The Tropical Continental air mass originates in the ...

Snow may join the rain this week as a “colder air mass looms,” the National Weather Service reported Monday, as the ...