Weather Flashcards
What are the stages of Factors Affecting Precipitation?
1-Westerly wind picks up moisture from the Atlantic.
2-Air is forced to rise over the mountains.
3-Air cools as it rises.
4-Cooling causes cloud droplets to form (condensation).
5-Further cooling causes water droplets to form (precipitation).
6-Air descents, warms and produces drier conditions. This is called a rain shadow.
What are the 5 Air Masses?
Arctic Maritime
Polar Maritime
Polar Continental
Tropical Continental
Tropical Maritime
What is the Weather like when places are going through an Arctic Maritime?
Summer-Very cold/Wet conditions
Winter-Very cold/snowy
What is the Weather like when places are going through a Polar Maritime?
Summer-Cool, Cloudy weather
Winter-Wet weather-Rain showers sometimes
Snow
What is the Weather like when places are going through a Polar Continental?
Summer-Hot and Summer weather
Winter-Very Cold weather
What is the Weather like when places are going through a Tropical Continental?
Summer-Very Hot
Winter-Mild
What is the Weather like when places are going through a Tropical Maritime?
Summer-Very Hot
Winter-Mild
What are the 4 Impacts of Weather?
Hot weather
Cold weather
Dry weather
Wet weather
What impacts does Hot Weather have?
Tourists may visit the coast->Improve the local economy.
People will suffer sunstroke-> Health risk.
Hot and Dry weather->Causes droughts and water shortages.
What impacts does Cold Weather have?
Frost and Ice->Slips and trips become more common->More pressure on the NHS.
Use of more heating->Heating costs will increase.
School may close if pupils can’t safely travel->School closing.
What impacts does Dry Weather have?
Dry weather->Droughts and water shortages.
Hosepipe bans may be introduced->Make sure people have enough water for essential purposes.
Dry weather is more pleasant for outdoor exercise->Recreation outside will be more common.
What impacts does Wet Weather have?
Prolonged Wet weather->Cause flooding of properties and businesses.
Wet weather provides water->Essential for farmers growing crops.
Lots of Snow->Cause traffic issues due to the need to grit roads, slower driving and more collisions.
What do the Isobars show?
Isobars are lines showing equal air pressure. The further the Isobar lines are the less winds there are. The closer they are more wind is.
What are Weather Fronts?
Weather Fronts mark the front of a section of Warm or Cold air.
Warm Front-Semi Circles
Cold Front-Triangles
Occluded Front-Semi Circle and Triangle
What are the 5 stages of Depression?
1-As the Warm front Approaches.
2-At the Warm front.
3-In the Warm sector.
4-At the Cold front.
5-As the Cold front Passes.
Describe the first stage of a Depression (As the Warm front Approaches).
The Air Pressure starts to Decrease.
The Temperature is Relatively Cold.
The Cloud Cover Thins.
The Precipitation is none (no rain).
Describe the Second stage of Depression (At the Warm front).
The Air Pressure lowers.
The Temperature is warmer.
The Cloud Cover gets thicker.
The Precipitation is steady rain.
Describe the Third Stage of Depression (In the Warm sector).
The Air Pressure is low and decreases.
The Temperature is at its warmest.
The Cloud Cover is light.
The Precipitation is it has occasional showers.
Describe the Fourth stage of Depression (At the Cold Front).
The Air Pressure is low.
The Temperature drops and becomes cold.
The Cloud Cover is thick again.
The Precipitation is heavy rain.
Describe the Fifth stage of Depression (As the Cold Front passes).
The Air Pressure rises again.
The Temperature is cool.
The Cloud Cover is a clear sky.
Precipitation is when the rain stops.
What are the Weather conditions in an Anticyclone during Summer?
The temperature in the Daytime- Hot because there is more heat entering the Earth.
Temperature at Night- Cold because heat can freely escape as little cloud cover.
Cloud Cover- Very little because of high air pressure as air can’t rise to form clouds.
Precipitation- Dry because there are no clouds or weather fronts to bring rain.
Wind Speed- Light because Isobars are spaced far apart.
Wind Direction- Westerly because wind rotates clockwise around a high-pressure system.
What are the Weather conditions in an Anticyclone during Winter?
Temperature in Daytime- Cold because there is less heat entering the Earth.
Temperature at Night- Very cold because heat can freely escape as little cloud cover.
Cloud Cover- Very little because of high air pressure as air can’t rise to form clouds.
Precipitation- Dry because there are no clouds and weather fronts to bring rain.
Wind Speed- Light because Isobars are spaced further apart.
Wind Direction- Westerly because wind rotates clockwise around a high-pressure system.
What are the 5 features of Weather Station Circles?
Oktas
Wind direction
Wind Speed
Temperature
Present Conditions (Precipitation)
Describe the symbols of the Present Conditions (Precipitation).
’ - Drizzle
Upside down Triangle - Shower
. - Rain
* - Snow
Triangle - Hail
‘K’ with an arrow - Thunderstorm
3 dots - Heavy Rain
.* - Sleet
* Upside down Triangle - Snow Shower
= - Mist
=- - Fog
