Fronts
This type of front forms when warm air slides up and over cooler air, often bringing steady rain.
Warm front
Thin, wispy clouds made of ice crystals that often signal a change in weather.
Cirrus clouds
What gas makes up most of Earth's atmosphere?
Nitrogen
A red line with semicircles on a weather map represents this type of front.
Warm front
What are the main types of precipitation?
Rain, sleet, snow, hail
This front is marked by a blue line with triangles on a weather map and often brings thunderstorms.
Cold front
These puffy, cotton-ball clouds often signal fair weather.
Cumulus clouds
This layer of the atmosphere is where most weather occurs.
Troposphere
How much are the long lines, short lines, and flags worth on a weather station? **you need to put the correct measurement of wind to get the point**
Long lines: 10 knots
Short lines: 5 knots
Flags: 50 knots
What are isobars?
Lines on a weather map that tell us about the pressure, the closer the lines together, the stronger the winds in that area.
When neither warm nor cold air advances, this type of front forms and can cause days of cloudy weather.
Stationary Front
Tall, towering clouds that can produce thunderstorms, lightning, and tornadoes.
Cumulonimbus cloud
As altitude increases, air density generally does what?
Decrease
What pressure system is usually associated with clear skies and sinking air? How is it shown on a weather map?
H: high pressure
What is the Coriolis effect? What way does it curve air? What direction does it rotate storm systems?
In the Northern Hemisphere, this effect causes moving air and water to curve to the right, resulting in counterclockwise rotation.
Along this type of front, warm air is forced rapidly upward, creating cumulonimbus clouds and severe weather.
Cold front
This low, gray cloud layer often brings steady drizzle or mist.
Stratus clouds
In this layer, charged particles interact with solar wind to create auroras.
Thermosphere
What is wind measured in?
Knots
How does a front form?
warm and cold air masses meet and neither mixes
This front forms when a faster-moving cold front overtakes a warm front, this usually brings big storms
Occluded front
These high-altitude clouds appear as ripples or waves and are made entirely of ice crystals.
cirrocumulus clouds
As altitude increases in this layer, temperature rises due to ozone absorbing ultraviolet energy.
This type of front is shown with alternating red semicircles and blue triangles on a weather map.
Stationary front
What does cP stand for and what are the weather conditions associated?
Continental polar, cold and dry