By:Taylor Bauman

1. By: Taylor Bauman

2. Adiabatic Temperature Changes
 Happens when air is compresses or expanded.
 When it expands it cools and when it compresses it
warms.
 As you travel up in the atmosphere the atmosphere
pressure decreases because there are fewer and fewer
gas molecules.
http://www.kidsgeo.com/geography-for-kids/0070-
adiabatic-temperature-changes.php

3. Orographic Lifting
 When elevated terrains act like barriers for air to flow.
 If air descends, it warms adiabatically, then it makes
condensation and precipitation even less likely.
http://www.nc-climate.ncsu.edu/edu/k12/.LiftingMechanisms

4. Frontal Wedging
 Associated with specific storms called middle-latitude
cyclones.
 Cooler, denser air acts as a barrier over the warmer, less
dense air that rises.
http://www.wou.edu/las/physci/taylo
r/gs106/atm2_precip_files/frame.htm
#slide0004.htm

5. Convergence
 Air in lower atmosphere flows together.
 Florida experiences the greatest number of mid-
afternoon thunderstorms.
http://certik.github.com/femhub.org/

6. Localized Convective Lifting
 On warm summer days, unequal heating of the Earth’s
surface may cause pockets of air be warmed more than
the surrounding air.
https://www.meted.ucar.edu/sig
n_in.php?go_back_to=http%253
A%252F%252Fwww.meted.ucar.e
du%252Fdot%252Fprint.htm

7. Stability
 Stable air tends to remain in its original position, while
unstable air tends to rise.
 Measured by the temperature of the atmosphere at
various heights.
http://serc.carleton.edu/introgeo/models/E
qStBOT.html

8. Condensation
 Air must be saturated.
 Water vapor in air turns to liquid.
 Occurs at dew point.
http://decorating.visitacasas.com/how-to-
combat-condensation/

9. Types of Clouds
 Classified by their form and height.
 3 types: Cirrus, Cirromulus, Cirrostratus.
http://www.usatoday.com/weather/wcirrus.
htm

10. High Clouds
 Cirromulus consist of fluffy mass.
 Cirrostratus clouds are flat layers.
http://cloudjournal.blogspot.com/2007/11/c
ross-winds.html

11. Middle Clouds
 Altocumulus clouds consist of a rounded mass, larger
and denser.
http://www.ifimages.com/public/image/139
051/view.html

12. Low Clouds
 3 members: Stratus, Stratocumulus, and
Nimbostratus.
 Uniform, fog-like layer.
http://www.colby.edu/cpse/equipment2/hig
hclouds/high.html

13. Clouds of Vertical Development
 Bases are in low height range but extend upward.
 They are all related and have unstable air.
http://www.pilotfriend.com/av_weather/me
teo/clouds.htm

14. Fog ( by cooling and by
evaporation)
 Fog is a cloud with its base at or very near ground.
 Fog can form on cool, calm, clear nights.
http://www.physicalgeography.net/fundame
ntals/8f.html

15. Cold Cloud Precipitation
 Bergeron process relies on two physical processes:
supercooling and supersaturated.
 Liquid below 0 degrees Celsius is said to be
supercooling.
http://ocw.usu.edu/Forest__Range__and_W
ildlife_Sciences/Wildland_Fire_Managemen
t_and_Planning/Unit_4__Temperature-
Moisture_Relationship_7.html

16. Warm Cloud Precipitation
 The thing that forms raindrops is called the collision-
coalescence process.
 As the raindrops move they join together with smaller,
slower droplets.
http://www.srh.noaa.gov/fwd/?n=warmrain
paper

17. Rain and Snow
 The term rain means droplets that fall from a cloud
and a diameter of at least 0.5 mm. (smaller droplets are
called drizzle)
 At very low temperatures light, fluffy snow made up of
6 sided ice crystals.
http://www.its.caltech.edu/~atomic/snowcr
ystals/photos/photos.htm

18. Sleet, Glaze and Hail
 Sleet is the fall of small particles of clear ice.
 Glaze also known as freezing rain happens when
raindrops become supercooled.
http://www.alabamawx.com/?tag=sleet

19. The End