I'm new to the weather game ,but have had good interest in it.
i love the colder weather - snow most of all .
what i would like help with is ,
1) what do i need to be looking for ,sea temp &
satallite info?
2) what's a dew point?
you could say I am very green at this,
but i what to learn more to make my weather watch more fun
any help would be appreciated.
Cheers
some help please !
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colin manson
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Manukau heads obs
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Hi
i have some links here
http://www.weather-display.com/windy/links.htm
that you might find handy
the dew point is a good thing to watch
it tells you where an air mass originated from
its the temperature at which if you cooled the air to that temperature, cloud would form
warmer air can hold more moisture, and so the dew point is high in the tropics, say 23oC
in the sub polar area though, the dew point is close to the air temperature, say 8oC
but when that polar air mass moves north, the dew point only slowly increases
so the air actualy "dries out", and then relative humidity drops
i.e the air mass might warm to 18oC by the time it reaches northern NZ, but the dew point si still 8 or 9oC
and the relative humidity will be low, and the cloud base will be high
and so the shower activity "fizzles" up
the oposite happens with an air mass moving down the from the north, especialy when it is forced to rise up over rising ground (e.g the bay of plenty)
note that the relative humdity is just that...relative the temperature and dew point
as the day warms up, the dew point stays the same, and so the relative humidity drops
note
a sea breeze will increase the humidity
also, air masses of different dew points dont mix easily,which is what causes a font!
i have some links here
http://www.weather-display.com/windy/links.htm
that you might find handy
the dew point is a good thing to watch
it tells you where an air mass originated from
its the temperature at which if you cooled the air to that temperature, cloud would form
warmer air can hold more moisture, and so the dew point is high in the tropics, say 23oC
in the sub polar area though, the dew point is close to the air temperature, say 8oC
but when that polar air mass moves north, the dew point only slowly increases
so the air actualy "dries out", and then relative humidity drops
i.e the air mass might warm to 18oC by the time it reaches northern NZ, but the dew point si still 8 or 9oC
and the relative humidity will be low, and the cloud base will be high
and so the shower activity "fizzles" up
the oposite happens with an air mass moving down the from the north, especialy when it is forced to rise up over rising ground (e.g the bay of plenty)
note that the relative humdity is just that...relative the temperature and dew point
as the day warms up, the dew point stays the same, and so the relative humidity drops
note
a sea breeze will increase the humidity
also, air masses of different dew points dont mix easily,which is what causes a font!
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NZstorm
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I found this URL good for brushing up on meteorology.
http://www.theweatherprediction.com/habyhints/
http://www.theweatherprediction.com/habyhints/
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colin manson
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