What clouds are associated with cold fronts?
Cold fronts occur when heavy cold air displaces lighter warm air, pushing it upward. Cumulus clouds are the most common cloud types that are produced by cold fronts. They often grow into cumulonimbus clouds, which produce thunderstorms. Cold fronts can also produce nimbostratus, stratocumulus, and stratus clouds.
How do you identify a cold front?
Symbolically, a cold front is represented by a solid line with triangles along the front pointing towards the warmer air and in the direction of movement. On colored weather maps, a cold front is drawn with a solid blue line. There is typically a noticeable temperature change from one side of a cold front to the other.
What does a cold front look like on a weather map?
On a weather map, a cold front is usually drawn using a solid blue line with triangles pointing in the direction of the warm air that will be replaced. Cold fronts typically move from northwest to southeast. A cold front can bring cold temperatures, torrential rains and high wind speeds.
Does high pressure mean dry weather?
High pressure often means dry weather with sunshine. Low pressure often means clouds and precipitation. When air sinks from high in the atmosphere to the lower levels it warms up and dries out.
What happens in a high pressure system?
A high pressure system has higher pressure at its center than the areas around it. Winds blow away from high pressure. Swirling in the opposite direction from a low pressure system, the winds of a high pressure system rotate clockwise north of the equator and counterclockwise south of the equator.
Which two air masses are different enough to cause conditions for a tornado to form?
How do tornadoes form? Most tornadoes form from thunderstorms. You need warm, moist air from the Gulf of Mexico and cool, dry air from Canada. When these two air masses meet, they create instability in the atmosphere.
Where on earth is the lowest atmospheric pressure?
The Dead Sea
What was the most powerful storm on Earth?
Typhoon Haiyan