Occluded Fronts
what is an occluded front?
a composite front produced by occlusion.
what is a warm front
what is a cold front
the boundary of an advancing mass of cold air, in particular the trailing edge of the warm sector of a low-pressure system.
what is a stationary front
A stationary front (or quasi-stationary front) is a weather front or transition zone between two air masses, when neither air mass is advancing into the other at a speed exceeding 5 knots (about 6 miles per hour or about 9 kilometers per hour) at the ground surface.
A major difference between fronts is that?
in cold fronts, air masses are moving in different directions
warm front overtakes a cold front?
Occluded Front: when a cold front overtakes a warm front.
When a warm front is approaching, what happens?
advancing warm air pushes up and over retreating cold air causing warm temperatures and mild rain
When I cold front is approaching, what happens?
warm air rises, cools, and causes rain and thunderstorms
what type of weather does a stationary front bring?
Because a stationary front marks the boundary between two air masses, there are often differences in air temperature and wind on opposite sides of it.
If an air mass is rising, it must be?
warm and less dense
what type of weather does a occluded front bring?
The warm air mass rises as the cool air masses push and meet in the middle.
The symbol on a weather map for a warm front is what?
a line with semi-circles on it
The symbol on a weather map for a cold front is what?
a line with triangles on it
This happens when two masses of air are pushing against each other, but neither is powerful enough to move the other?
what is stationary front
If an air mass is sinking, it must be
cold and more dense
Which front causes severe weather?
what is occluded front
What kind of weather happens during a warm front?
Light rain or light snow,Stormy Weather
What kind of weather happens during a cold front?
Heavy rain or heavy snow.
What happens when a stationary front?
A stationary front forms when a cold front or warm front stops moving.
In a high pressure area, the weather will likely be?
warmer and clear skies
an occluded front is formed when a___________meets a _________that was moving ahead of it.
cold front and warm front
What kind of weather happens after a warm front moves out?
Clear skies, temp. warms
What kind of weather happens after a cold front moves out?
Clear skies, temp. cools
?what does a stationary front do
Although the stationary front's position may not move
In a high pressure area?
the winds will be moving clockwise