Meteorology B

[srsvball95]

Ok so I want to make sure that I'm understanding this correctly:

If your dewpoint depression lowers, then there is a smaller difference between the temperature and dewpoint and therefore the air cools.

But I don't really understand how if the air becomes cooler then the relative humidity increases?

[brobo]

Not quite. The Dewpoint is the temperature that the air would have to reach in order to lose its ability to hold any moisture (100% humidity). So, if the dewpoint is the same as the temperature, then that air has 100% reletive humididty. If the dewpoint is much lower then the temperature, then the humididty is low.
I really hope that made sense

[doctor]

i have a question
what does it mean on the rules about water and its states and properties as related to the weather
what shud you study for that?

[soobsession]

i just took a met test for regionals yesterday.

we didnt do well, but thats besides the point...

it was a well made test. pretty challenging too. it had everything from hurricanes, air pressure, fronts, air masses, three cell model, surface weather maps, vernal/autumnal equinox, summer/winter solstice, greenhouse gasses and a buch of other stuff...

[srsvball95]

Can someone please explain upper level lows? I've read about them in several places but I'm still not completely understanding them...

[smarticle13]

Upper level lows are the same as troughs (height contours bending strongly to the south). It is the upper level extension of a surface low pressure center, which is why troughs are also called upper level lows. Troughs are typically preceded by stormy weather and cold air at the surface.

http://ww2010.atmos.uiuc.edu/(Gh)/guide ... /trgh.rxml

[srsvball95]

Sorry for all the questions but could you also explain troughs? I understand that they are a depression in the atmosphere but I'm not really making the connection between them and upper level lows....

[brobo]

Sorry, but it seems I'm having a mental block on this one subject.
As stated before, I'm not of full understanding of the difference between SLP and millibars.
On a meteogram, it displays air pressure in SLP. How would I convert that to inches in millibars?

[icyfire]

What exactly are we supposed to know or should know for the sunsets, green flash, etc.?

[brobo]

There is a list of everything you kneed to know on the Rules. Ask your coach for them.
Also, read this thread. It has a lot of info on it, or try the Meteorology Wiki or the [wiki][/wiki]