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Weather Notes
Definition
______________________________________________________________________
The State of the Atmosphere
_____________________
_____________________
_____________________
_____________________
Evaporation- ________________________________________________________
Transpiration- ________________________________________________________
Role of Water Vapor
Humidity: amount of water in the air is dependent on temperature
-______________ in temp results in an ________________ in humidity
-______________ in temp results in a ________________ in humidity
Relative Humidity:
amount of water vapor air holds compared to what it can hold at a
__________________________.
- Humidity _____________ as temperature ______________
Dew Point:
_________________________________________________________________.
Clouds
____________________________________________________________________.
Steps to Cloud Formation
1. ________________________________________.
2. Pressure _____________________ and temperature _____________________.
3. Air parcel ________________ to the dew pt. temperature.
4. Water _____________________ around small particles of dust, salt, and smoke.
Types of Clouds
Classified:
-_____________________
-_____________________
Height Classification
•Cirrus - high clouds, ________________________________________________.
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•Alto - middle clouds, grayish clouds, ___________________________________.
•Strato - low clouds, uniform layer covering much of the sky.
Cloud Forms
•Cumulus - ___________________________________________.
•___________________ - sheets or layers
•___________________ - high, white, thin, feathery
Combinations
_________________________ - indicates fair weather with rain in the forecast
Altostratus - ___________________________________________________
Cumulus – fair weather
Cumulonimbus - heavy precipitation, lightning, thunder, hail
-_________________________________________
-looks like huge towers with an anvil shape
Precipitation
__________________ – falls when temperatures are below freezing
__________________ – falls when temps are above freezing
__________________ – snow falls through a layer of warm air, melts and refreezes
__________________ – freezes in layers around a particle of ice during thunderstorms
Effect of Cloud Cover
Clear skies - more heat reach’s earth’s surface leading to ________________________.
Cloudy skies – ________________________________ so less sun reaches earth’s
surface leading to cooler temperatures.
Night Cloud Cover
Clear skies – heat from earth travels freely back to space resulting in ___________
temperatures.
Cloudy skies – ____________________________________ resulting in warmer
temperatures.
Air Mass
Large body of air that has the same properties as the surface over which it develops.
Consists of the ____________ temperature and ________ amount of moisture.
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Types of Air Masses
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
Potential Air Masses
cA – _______________________
cP – _______________________
cT – _______________________
mP – _______________________
mT – _______________________
Fronts
Boundary between two masses
Identifies the _______________________________
Cloudy and stormy
Warm Front
When a ________ air mass advances on a ________ air mass
Drizzly precipitation
__________________________________________
After front passes temperatures _________________
Cold Front
When a _________ air mass advances on a ________ air mass
_______________, produces thunderstorms, heavy rain, or
snow
Altocumulus, cumulonimbus
After front passes temperatures _____________
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Stationary Front
When ____________ a cold or warm air mass is ________________
Occluded Front
When _______________________ takes over a warm front and __________________
Cool temperatures and lots of precipitation
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