Weather fronts are the boundaries between air masses. we get on a front, depends on the temperature difference between the air masses that they separate. Fronts occur when cold and warm air mass collide to bring a whole mixture of weather conditions. Weather World: Great site with lots of videos for kids Teaching Weather, Weather . Earth Science Weather Maps Links and air masses Teaching Weather.
What are they and how do they affect the UK? Fronts can be thought of as the front line in a battle where the warm air is on one side and the opposition is the cold air on the other side, colliding to form various weather conditions. Forecaster Sophie Randall, of the Weather Channel, said: What is the jet stream and how does it affect out weather?
When the two air masses meet the denser, colder air will try to sink or move under the warmer, less dense air - which will try to rise above. Along a warm front we will often get drizzly, persistent rain and overcast conditions with temperatures rising as it passes. The most severe weather usually occurs when warm, humid maritime tropical air collides with dry and cold continental polar air.
Air Masses and Weather Fronts | avb4you.info
Mirror Online The three common weather fronts that typically affect Britain include warm, cold and occluded fronts. Warm fronts When a warm front sweeps over the UK, the air becomes noticeably warmer and more humid than it was prior. Warm fronts usually move from southwest to northeast and the air behind a warm front is warmer and moister than the air ahead of it.
A line with semicircles on a weather map represents a warm front, which is often red and indicates the direction the warm air is moving. In Winter, they can bring heavy rain or snow.
Global winds push air masses around the Earth! Why does our weather change?
Air masses are commonly moved by prevailing westerlies, and jet streams. The prevailing westerlies, the major wind belts over the continental US, generally push air masses from West to East. As jet streams generally blow from west to east, air masses are carried along their tracks.
Weather fronts: What are they and how do they affect the UK?
The boundary where the air masses meet becomes a front. Colliding air masses can form four types of fronts: Weather remains the same for days 27 Occluded Fronts 28 Occluded Front A warm air mass is caught between two cooler air masses. The temperature near the ground becomes cooler, and the warm air mass is cut off or occluded from the ground. The weather may turn cloudy and rain or snow may fall 29 Cyclones and Anticyclones Cyclone-a swirling center of low air pressure.
As warm air at the center of the cyclone rises, the air pressure decreases. Cooler air blows inward from nearby areas of higher pressure.
Winds spiral inward toward the center. Cyclones and decreasing air pressure are associated with clouds, wind, and precipitation. The descending air in an anticyclone causes dry, clear weather.
Answer the following questions, and the 2 questions in the beginning needs to be on a piece of paper with this.
Air Masses and Weather Fronts
What two characteristics are used to classify air masses? What type of air mass would form over the northern Atlantic Ocean? What is a front? What type of weather occurs as a warm front moves through an area? What type of fronts would cause several days of rain and clouds? What is a cyclone? How does air move in a cyclone?