hurricanes

low pressure systems

-go counterclockwise in Northern hemisphere

-might cause hurricane if it goes over ocean

-acts as a sweep over the ocean and pumps water up into atmosphere

high pressure systems

-goes clockwise in northern hemisphere

-pumps air from atmosphere to ocean

-around 1/3 of equator

-condense

coalescence

getting together, grow large, condense and become clouds

ice crystal

amount of water vapor in air

-is a function of temperature

-eveyr 20 F up, moisture holding capacity of the air doubles, that means humidity halfs

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wet bulb depression

dry bulb temp - wetbulb temperature

is an indicator of air’s capacity to cool down thorugh evaporation

larger the wet bulb depression, drier the air, great capacity to absorb moisture

T-Tw

Tw is water temperature

dew point prssure

Td

temperature at which air is saturated