Download - Air mass movement reference pictures pp
![Page 1: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/1.jpg)
MOVING AIR MASSES
![Page 2: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/2.jpg)
An air mass is a vast pool of air having similar temperature and moisture characteristics over its horizontal extent. An air mass occupies thousands of square miles of the Earth's surface. Air masses are born in a source region where they take on their characteristic temperature and moisture content.
![Page 3: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/3.jpg)
The jet stream flows from west to east in wave-like patterns.
west east
![Page 4: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/4.jpg)
![Page 6: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/6.jpg)
Meteorologists agree that jet streams may act as a barrier between cold air in the north and warm air in the south. During their meandering, the streams appear to allow some cold air to flow southward and warm air to flow northward. These flows undoubtedly affect the formation of cold and warm air masses.
![Page 7: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/7.jpg)
Which way will the wind blow in Louisiana? Why?
![Page 8: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/8.jpg)
http://www.intellicast.com/WeatherImg/CustomGraphicLoop/sfcmap_None_anim.gif
![Page 9: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/9.jpg)
Which best describes the
direction that high and low pressure area
Move across the United States? Why?
West to East
![Page 10: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/10.jpg)
![Page 11: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/11.jpg)
Fronts are boundaries between contrasting masses of air.
![Page 12: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/12.jpg)
Cold fronts are those where moving cold air slides under warm air. Friction slows the advancing cold air causing a steep slope to the front. The steep slope pushes the air ahead of it rapidly upwards and vertically developed clouds (cumulus) are produced along the front.
Cold Fronts
![Page 13: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/13.jpg)
Cold Air
Heavy Rain often occurs. Cold front Symbol
Warm Air
![Page 14: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/14.jpg)
With greatly contrasting air masses on either side of the front and potentially unstable conditions, violent weather can form. Towering cumulonimbus clouds are common along cold fronts producing intense downpours of rain lasting for a relatively short period of time. Tornadoes can form under the most extreme conditions ahead of an advancing cold front.
![Page 15: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/15.jpg)
![Page 16: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/16.jpg)
![Page 17: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/17.jpg)
![Page 18: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/18.jpg)
A warm front is where moving warm air pushes over cold air. As with a warm front, you experience a drop in the atmospheric pressure as the front approaches. The warm front slopes gently up into the troposphere that has a direct bearing on the kinds of clouds that are produced. As the warm air behind the front collides with the cooler air ahead, the warmer less dense air is forced to glide upward.
Warm Fronts
![Page 19: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/19.jpg)
Warm AirCool Air
Light or moderate Rain often occurs. Warm front Symbol
![Page 20: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/20.jpg)
Once the warm front passes your location you'll notice an increase in temperature and air pressure. Soon the stratus clouds of the warm front give way to broken and clearing skies. As the warm sector moves into your location you will notice an increase in the humidity of the air
![Page 21: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/21.jpg)
Figure WS.4 Front Symbols
![Page 22: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/22.jpg)
Air particles moving from areas
of high pressure to areas of low
pressure.
WIND
![Page 23: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/23.jpg)
HH
L
![Page 24: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/24.jpg)
![Page 25: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/25.jpg)
![Page 26: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/26.jpg)
![Page 27: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/27.jpg)
![Page 28: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/28.jpg)
Which kind of FRONT?
Moving cold air slides under warm air.
COLD FRONT
![Page 29: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/29.jpg)
Which kind of FRONT?Add to notes in correct front
Moving warm air pushes over cold air.
WARM FRONT
![Page 30: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/30.jpg)
Which kind of FRONT?Add to notes in correct front
This symbol:
WARM FRONT
![Page 31: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/31.jpg)
Which kind of FRONT?Add to notes in correct front
This symbol:
COLD FRONT
![Page 32: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/32.jpg)
Which kind of FRONT?Add to notes in correct front
Heavy Rain often occurs.
COLD FRONT
![Page 33: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/33.jpg)
Which kind of FRONT?Add to notes in correct front
Light or moderate rain precipitation can occur.
WARM FRONT
![Page 34: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/34.jpg)
Air particles moving from areas
of high pressure to areas of low pressure
describes….
WIND
![Page 35: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/35.jpg)
![Page 36: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/36.jpg)
![Page 37: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/37.jpg)
![Page 38: Air mass movement reference pictures pp](https://reader035.vdocuments.mx/reader035/viewer/2022062704/556155a2d8b42a8a7d8b5367/html5/thumbnails/38.jpg)