regional gliding school transition zone between different air masses.transition zone between...
TRANSCRIPT
Regional Gliding School
• Transition zone between Transition zone between different air masses.different air masses.
COLDCOLDAIRAIR
WARMWARMAIRAIRmixing zone
SLOPE OF A COLD FRONT
1 MILE
50 MILES
The slope of the front is very steep (1 in 50)
Narrow weather band
Can be very severe
Regional Gliding School
• Clouds and weather– clouds of vertical development
– showers
– winds veer
– temperature decreases behind front
Fast moving cold fronts may produce severe thunderstorms and/or squall lines
Regional Gliding School
A
B
C
D
Shallow
Steep
Let's try a few review questions on Meteorology:
Question #1 - The slope of a cold front is .
Gradual
Vertical
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That answer is correct.
Let's move on...
SLOPE OF A COLD FRONT
1 MI LE
50 MI LES
The slope of the front is very steep
Narrow weather band
Can be very severe
Regional Gliding School
A
B
C
D
Showers
Steady
Let's try a few review questions on Meteorology:
Question #2 - What precipitation can you expect at a cold front?
Mist
Continuous
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That answer is correct.
Let's move on...
Regional Gliding School
• Clouds and weather– clouds of vertical development
– showers
– winds veer
– temperature decreases behind front
Fast moving cold fronts may produce severethunderstorms and/or squall lines
Regional Gliding School
The trailing edge of a retreating cold air massThe trailing edge of a retreating cold air massWarm air is forced aloft by “overrunning”Warm air is forced aloft by “overrunning”
WARMWARMAIRAIR
COLDCOLDAIRAIR
Regional Gliding School
Shallow slope (1 in 200)Wide weather band that may extend upto 500 milesExtensive stratiform cloud
FRONTAL SURFACE
150 - 200 MILES
1 MILE
Regional Gliding School
• Clouds and weather– stratus clouds
– steady precipitation
– winds veer
– temperature rises behind front
– thunderstorms may be embedded in the stratus clouds
– in winter, ice pellets and freezing rain may develop
Regional Gliding School
Sequence of clouds indicating the approach of warm front are:
• C cirrus
• C cirrostratus
• A altostratus
• Nnimbostratus
• S stratus
Regional Gliding School
TROWAL
• A cold front overtakes a warm front and lifts the warm air off the ground.
• Clouds and weather– combination of both warm front and cold front
weather.
A TRough Of Warm air ALoft
Regional Gliding School
A
B
C
D
Transition point between fronts
Trough of warm air aloft
Let's try a few review questions on Meteorology:
Question #3 - What does the abbreviation TROWAL stand for?
Shallow slope
Occluded Fronts
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Flying Scholarship Program
That answer is correct.
Let's move on...
Regional Gliding School
TROWAL
• A cold front overtakes a warm front andlifts the warm air off the ground.
• Clouds and weather– combination of both warm front and cold front
weather.
A TRough Of Warm air ALoft
Regional Gliding School
A
B
C
D
Alto cumulus
Alto stratus
Let's try a few review questions on Meteorology:
Question #4 - What does the “A” in CCANS abbreviation indicate?
Altocumulus Castellanus
Cumulus
MeteorologyMeteorologyFrontsFronts
Flying Scholarship Program
That answer is correct.
Let's move on...
Regional Gliding School
Sequence of clouds indicating theapproach of warm front are:
• C cirrus
• C cirrostratus
• A altostratus
• N nimbostratus
• S stratus
Regional Gliding School
Congratulations!!
You have now completed the Front lesson of the Meteorology Module. Of course, this lesson is always available to you for future reference if required.
You are now ready to move along to the next Meteorology lesson you have not completed or to any other module you wish. You can advance to the Self Test Module if you feel ready to challenge the final exam.
Good Luck!
MeteorologyMeteorologyAir MassesAir Masses