AIR MASSES AND FRONTS Air Masses A large
![AIR MASSES AND FRONTS AIR MASSES AND FRONTS](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-1.jpg)
![Air Masses A large body of air with similar -TEMPERATURE - HUMIDITY Temperatur e Air Masses A large body of air with similar -TEMPERATURE - HUMIDITY Temperatur e](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-2.jpg)
![Air Masses’ Characteristics Source Regions Over Continental area: the warm area makes the air Air Masses’ Characteristics Source Regions Over Continental area: the warm area makes the air](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-3.jpg)
![Air Mass Characteristics Source Regions (cont. ) Over Polar area: the frigid area makes Air Mass Characteristics Source Regions (cont. ) Over Polar area: the frigid area makes](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-4.jpg)
![Types of Air Masses DESCRIPTION CONDITION LOCATION FORMED 1. Maritime: (m) moist (marina/water) 2. Types of Air Masses DESCRIPTION CONDITION LOCATION FORMED 1. Maritime: (m) moist (marina/water) 2.](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-5.jpg)
![Types of Air Masses IF WE COMBINE A TEMPERATURE AND HUMIDITY CHARACTERISTIC WE CAN Types of Air Masses IF WE COMBINE A TEMPERATURE AND HUMIDITY CHARACTERISTIC WE CAN](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-6.jpg)
![Types of Air Masses c. P Continental Polar m. P Maritime Polar Dry, cold Types of Air Masses c. P Continental Polar m. P Maritime Polar Dry, cold](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-7.jpg)
![Air Mass Modification Air masses move due to the prevailing winds. The winds cause Air Mass Modification Air masses move due to the prevailing winds. The winds cause](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-8.jpg)
![What occurs when air masses collide? FRONTS and a change in weather conditions What occurs when air masses collide? FRONTS and a change in weather conditions](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-9.jpg)
![Fronts A boundary between two air masses: COLD FRONTS WARM FRONTS STATIONARY FRONTS Fronts A boundary between two air masses: COLD FRONTS WARM FRONTS STATIONARY FRONTS](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-10.jpg)
![When air masses meet… m. P Maritime Polar Moist, cold air to west coast When air masses meet… m. P Maritime Polar Moist, cold air to west coast](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-11.jpg)
![Cold Fronts - When cold air hits warm air. - Warm air is forced Cold Fronts - When cold air hits warm air. - Warm air is forced](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-12.jpg)
![Cold Fronts - When cold air hits warm air. - Warm air is forced Cold Fronts - When cold air hits warm air. - Warm air is forced](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-13.jpg)
![Cold Fronts “COLD FRONT” … umm its gets colder Cold Fronts “COLD FRONT” … umm its gets colder](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-14.jpg)
![Warm Fronts - When warm hits cold air. - Warm air gently glides up Warm Fronts - When warm hits cold air. - Warm air gently glides up](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-15.jpg)
![Warm Fronts “WARM FRONT”… right, it gets warmer, good. Warm Fronts “WARM FRONT”… right, it gets warmer, good.](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-16.jpg)
![The General Pattern The General Pattern](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-17.jpg)
![Stationary Front - When a warm or cold front stops moving. - Usually several Stationary Front - When a warm or cold front stops moving. - Usually several](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-18.jpg)
![The high’s and low’s of weather… LOW PRESSURE: cyclones 1. Low pressure systems form The high’s and low’s of weather… LOW PRESSURE: cyclones 1. Low pressure systems form](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-19.jpg)
![The high’s and low’s of weather… LOW PRESSURE: 5. The rising air creates clouds The high’s and low’s of weather… LOW PRESSURE: 5. The rising air creates clouds](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-20.jpg)
![](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-21.jpg)
![The high’s and low’s of weather… HIGH PRESSURE: anticyclones 1. High pressure systems areas The high’s and low’s of weather… HIGH PRESSURE: anticyclones 1. High pressure systems areas](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-22.jpg)
![The high’s and low’s of weather… HIGH PRESSURE: 4. The sinking air stops clouds The high’s and low’s of weather… HIGH PRESSURE: 4. The sinking air stops clouds](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-23.jpg)
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- Slides: 25
![AIR MASSES AND FRONTS AIR MASSES AND FRONTS](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-1.jpg)
AIR MASSES AND FRONTS
![Air Masses A large body of air with similar TEMPERATURE HUMIDITY Temperatur e Air Masses A large body of air with similar -TEMPERATURE - HUMIDITY Temperatur e](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-2.jpg)
Air Masses A large body of air with similar -TEMPERATURE - HUMIDITY Temperatur e • Warm • Cold Humidity • Moist • Dry
![Air Masses Characteristics Source Regions Over Continental area the warm area makes the air Air Masses’ Characteristics Source Regions Over Continental area: the warm area makes the air](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-3.jpg)
Air Masses’ Characteristics Source Regions Over Continental area: the warm area makes the air above warm. Over Maritime: water evaporates into the air above and makes it moist.
![Air Mass Characteristics Source Regions cont Over Polar area the frigid area makes Air Mass Characteristics Source Regions (cont. ) Over Polar area: the frigid area makes](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-4.jpg)
Air Mass Characteristics Source Regions (cont. ) Over Polar area: the frigid area makes the air above cold Over Tropical area: the warm area makes the air above warm
![Types of Air Masses DESCRIPTION CONDITION LOCATION FORMED 1 Maritime m moist marinawater 2 Types of Air Masses DESCRIPTION CONDITION LOCATION FORMED 1. Maritime: (m) moist (marina/water) 2.](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-5.jpg)
Types of Air Masses DESCRIPTION CONDITION LOCATION FORMED 1. Maritime: (m) moist (marina/water) 2. Continental: (c) dry (continents/land) 3. Tropical: (T) warm (tropics) 4. Polar: (P) cold (poles)
![Types of Air Masses IF WE COMBINE A TEMPERATURE AND HUMIDITY CHARACTERISTIC WE CAN Types of Air Masses IF WE COMBINE A TEMPERATURE AND HUMIDITY CHARACTERISTIC WE CAN](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-6.jpg)
Types of Air Masses IF WE COMBINE A TEMPERATURE AND HUMIDITY CHARACTERISTIC WE CAN MAKE 4 DIFFERENT TYPES OF AIR MASSES. Maritime Tropical (m. T) Continental Tropical (m. P) Maritime Polar (m. P) Continental Polar (c. P)
![Types of Air Masses c P Continental Polar m P Maritime Polar Dry cold Types of Air Masses c. P Continental Polar m. P Maritime Polar Dry, cold](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-7.jpg)
Types of Air Masses c. P Continental Polar m. P Maritime Polar Dry, cold air to central and eastern US. m. P Maritime Polar Moist, cold air to east areas of the Canada Moist, cold air to west coast of the US. m. T Maritime Tropical Moist, warm air to west coast of the Mexico. c. T Continental Tropical Dry, warm to Desert SW m. T Maritime Tropical Moist, warm air to south Mr. Fetch’s Earth Science Classroom east coast of the US.
![Air Mass Modification Air masses move due to the prevailing winds The winds cause Air Mass Modification Air masses move due to the prevailing winds. The winds cause](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-8.jpg)
Air Mass Modification Air masses move due to the prevailing winds. The winds cause the air masses to move over land water. m. P Maritime Polar Moist, cold air to west coast of the US. As the air masses move, they change. This is called air mass modification. The air masses becomes more like the area it is moving over… …. . And At the same time, the area the air mass is moving over becomes more like the mass. Mr. Fetch’s Earth Science Classroom
![What occurs when air masses collide FRONTS and a change in weather conditions What occurs when air masses collide? FRONTS and a change in weather conditions](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-9.jpg)
What occurs when air masses collide? FRONTS and a change in weather conditions
![Fronts A boundary between two air masses COLD FRONTS WARM FRONTS STATIONARY FRONTS Fronts A boundary between two air masses: COLD FRONTS WARM FRONTS STATIONARY FRONTS](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-10.jpg)
Fronts A boundary between two air masses: COLD FRONTS WARM FRONTS STATIONARY FRONTS
![When air masses meet m P Maritime Polar Moist cold air to west coast When air masses meet… m. P Maritime Polar Moist, cold air to west coast](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-11.jpg)
When air masses meet… m. P Maritime Polar Moist, cold air to west coast of the US. m. T Maritime Tropical Moist, warm air to south Mr. Fetch’s Earth Science Classroom east coast of the US.
![Cold Fronts When cold air hits warm air Warm air is forced Cold Fronts - When cold air hits warm air. - Warm air is forced](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-12.jpg)
Cold Fronts - When cold air hits warm air. - Warm air is forced violently up. - Rising air creates clouds, rain, and storms. (FRONTAL LIFTING) Mr. Fetch’s Earth Science Classroom
![Cold Fronts When cold air hits warm air Warm air is forced Cold Fronts - When cold air hits warm air. - Warm air is forced](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-13.jpg)
Cold Fronts - When cold air hits warm air. - Warm air is forced violently up. - Rising air creates clouds, rain, and storms. (FRONTAL LIFTING)
![Cold Fronts COLD FRONT umm its gets colder Cold Fronts “COLD FRONT” … umm its gets colder](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-14.jpg)
Cold Fronts “COLD FRONT” … umm its gets colder
![Warm Fronts When warm hits cold air Warm air gently glides up Warm Fronts - When warm hits cold air. - Warm air gently glides up](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-15.jpg)
Warm Fronts - When warm hits cold air. - Warm air gently glides up over the cold air. - Rising air creates clouds and showers. (Less Violen Mr. Fetch’s Earth Science Classroom
![Warm Fronts WARM FRONT right it gets warmer good Warm Fronts “WARM FRONT”… right, it gets warmer, good.](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-16.jpg)
Warm Fronts “WARM FRONT”… right, it gets warmer, good.
![The General Pattern The General Pattern](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-17.jpg)
The General Pattern
![Stationary Front When a warm or cold front stops moving Usually several Stationary Front - When a warm or cold front stops moving. - Usually several](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-18.jpg)
Stationary Front - When a warm or cold front stops moving. - Usually several days of clouds and showers.
![The highs and lows of weather LOW PRESSURE cyclones 1 Low pressure systems form The high’s and low’s of weather… LOW PRESSURE: cyclones 1. Low pressure systems form](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-19.jpg)
The high’s and low’s of weather… LOW PRESSURE: cyclones 1. Low pressure systems form along fronts. (Unstable) 2. Low pressure systems areas of rising air. (As along fronts) 3. The wind blows from HIGHS into LOWS. 4. Earth’s rotation causes the winds to rotate counter-clockwise around low pressure systems. Mr. Fetch’s Earth Science Classroom
![The highs and lows of weather LOW PRESSURE 5 The rising air creates clouds The high’s and low’s of weather… LOW PRESSURE: 5. The rising air creates clouds](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-20.jpg)
The high’s and low’s of weather… LOW PRESSURE: 5. The rising air creates clouds and precipitation. 6. Low pressure systems created rainy, stormy weather.
![](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-21.jpg)
![The highs and lows of weather HIGH PRESSURE anticyclones 1 High pressure systems areas The high’s and low’s of weather… HIGH PRESSURE: anticyclones 1. High pressure systems areas](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-22.jpg)
The high’s and low’s of weather… HIGH PRESSURE: anticyclones 1. High pressure systems areas of sinking air. (Stable) 2. The wind blows out of HIGHS to LOWS. 3. Earth’s rotation causes the winds to rotate clockwise around high pressure systems.
![The highs and lows of weather HIGH PRESSURE 4 The sinking air stops clouds The high’s and low’s of weather… HIGH PRESSURE: 4. The sinking air stops clouds](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-23.jpg)
The high’s and low’s of weather… HIGH PRESSURE: 4. The sinking air stops clouds from forming. 5. No clouds = Sunny, clear weather conditions.
![](https://slidetodoc.com/presentation_image_h/e7e84918471225f170462b32337cbb01/image-24.jpg)
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