Air Masses and Fronts An air mass is
![Air Masses and Fronts An air mass is a large body of air that Air Masses and Fronts An air mass is a large body of air that](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-1.jpg)
![• Air mass that form over land are called continental = (c) • • Air mass that form over land are called continental = (c) •](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-2.jpg)
![• Air masses that form at high latitudes (cold) are called – polar • Air masses that form at high latitudes (cold) are called – polar](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-3.jpg)
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![Fronts • A front is a boundary where two air masses meet • A Fronts • A front is a boundary where two air masses meet • A](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-5.jpg)
![• Characteristics of a cold front: – Moves rapidly – Stays close to • Characteristics of a cold front: – Moves rapidly – Stays close to](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-6.jpg)
![• A warm front forms when warm air moves into an area occupied • A warm front forms when warm air moves into an area occupied](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-7.jpg)
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![• Stationary fronts form where cold and warm air masses meet, and both • Stationary fronts form where cold and warm air masses meet, and both](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-9.jpg)
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![• Occluded fronts form where a warm air mass is caught between two • Occluded fronts form where a warm air mass is caught between two](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-11.jpg)
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- Slides: 14
![Air Masses and Fronts An air mass is a large body of air that Air Masses and Fronts An air mass is a large body of air that](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-1.jpg)
Air Masses and Fronts An air mass is a large body of air that has the same temperature, and humidity throughout (moisture) A source region is where the air mass forms, and takes on those characteristics Ex. Forms over water – high moisture Forms over land – low moisture Forms over low latitudes – high temp. Forms over high latitudes – low temp.
![Air mass that form over land are called continental c • Air mass that form over land are called continental = (c) •](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-2.jpg)
• Air mass that form over land are called continental = (c) • Air masses that form over water are called maritime = (m)
![Air masses that form at high latitudes cold are called polar • Air masses that form at high latitudes (cold) are called – polar](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-3.jpg)
• Air masses that form at high latitudes (cold) are called – polar (P) • Air masses that form at low latitudes (warm) are called – tropical (T) • Air masses are identified by two letters, first describes the moisture, the second describes the temperature. Ex. m. T
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![Fronts A front is a boundary where two air masses meet A Fronts • A front is a boundary where two air masses meet • A](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-5.jpg)
Fronts • A front is a boundary where two air masses meet • A cold front forms when cold air moves into an area occupied by a warmer air mass
![Characteristics of a cold front Moves rapidly Stays close to • Characteristics of a cold front: – Moves rapidly – Stays close to](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-6.jpg)
• Characteristics of a cold front: – Moves rapidly – Stays close to the ground – more dense – Associated with dark clouds – Precipitation is brief, but heavy – Associated with severe weather, thunderstorms, hail, and tornadoes
![A warm front forms when warm air moves into an area occupied • A warm front forms when warm air moves into an area occupied](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-7.jpg)
• A warm front forms when warm air moves into an area occupied by a colder air mass • Characteristics of a warm front are: – Slow moving – high thin cirrus clouds form in front of the warm front - Precipitation is long, but light - Less dense air moves up and over cold more dense air mass
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![Stationary fronts form where cold and warm air masses meet and both • Stationary fronts form where cold and warm air masses meet, and both](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-9.jpg)
• Stationary fronts form where cold and warm air masses meet, and both air masses have equal force, • Cold front has same strength as warm front • Many days of precipitation
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![Occluded fronts form where a warm air mass is caught between two • Occluded fronts form where a warm air mass is caught between two](https://slidetodoc.com/presentation_image_h/128bf3514f7680ac4be2ba37d18b3fab/image-11.jpg)
• Occluded fronts form where a warm air mass is caught between two cooler air masses. • Two cooler air masses move the warm air mass up, cooling of the air mass occurs and cloud formation with precipitation will happen
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What are middle-latitude cyclones?
Air masses notes
North american air masses
Two cold air masses converge on a warm air mass
Whats an air mass
Air masses & frontswhat is an air mass?
Maritime tropical air mass symbol
Air masses & frontswhat is an air mass?
Air masses & frontswhat is an air mass?
Stationary front
Air mass source regions
Cold air mass overtakes warm air mass
Air mass vocabulary
How do weather fronts form
Air fronts