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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Tue Apr 07, 2009 5:34 am 
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I'll post this evening again. Patience everyone ...

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Tue Apr 07, 2009 5:52 am 
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(Sneaking a quick post during lunch :twisted: ) OWN, a 50 foot drop is not unrealistic in relatively high winds if you are not on the ball - when you are only a couple of hundred feet of the ground it can be a little bit hair raising.

We get a fairly hefty onshore breeze (Fremantle doctor - much like the Cape Doctor) here during spring which can be blowing at 30 knots at 500 foot and drop of to a "mild" 15 knots at about 150 foot - it feels like the bottom has fallen out underneath you and you have to pop the throttle quite a bit to maintain altitude.

Some of the downbursts from a thunderstorm can also be classified as wind shear, but I was thinking more of the angled front when a thunderstorm is approaching.

Have fun :tongue:

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Tue Apr 07, 2009 6:36 am 
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Thanks TP! Fascinating information. Have a great one! Chat soon ...

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Wed Apr 08, 2009 4:22 am 
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Air revolves around high pressure systems in a particular direction. Which direction, and why is this so?

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Wed Apr 08, 2009 4:51 am 
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Clockwise in the northern hemisphere and counterclockwise in the southern hemisphere. Both cases the wind blows from the centre outwards. The rotation is caused by the coriolis effect.

could'nt help myself :tongue:

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Wed Apr 08, 2009 5:55 am 
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SPOT ON, TIMEPILOT! :clap: :clap:

By the way, is that counterclockwise or clockwise as viewed from above looking downwards in the direction towards the earth that the air is moving?

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Wed Apr 08, 2009 7:00 am 
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Thanks OWN :big_eyes: :tongue: put me on the spot!!

Put it this way, winds from a high pressure system turn in the opposite direction to the earths rotation so if you were looking from above the poles it would show as a clockwise, but the clockwise / counterclockwise would be viewed from above the north pole only :hmz: :pray:

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Thu Apr 09, 2009 4:15 am 
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Yes, it is indeed in the opposite direction to the earth's spin, and I do believe it must be viewed as seen from above the high pressure system. :clap:

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Thu Apr 09, 2009 4:15 am 
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Anyone else wish to post .... anything at all, anyone at all?

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Thu Apr 09, 2009 5:22 am 
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Okay, describe the difference between a gust and a squall.

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Thu Apr 09, 2009 6:23 am 
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Okay, my try. :hmz:
A squall can be a broken or solid line of thunderstorms which can spread out over many miles?
A gust is the leading edge of a thunderstorm that flows out of the base of a thunderstorm and spreads along the ground before the actual storm hits?

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Thu Apr 09, 2009 7:01 am 
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Good try Skillie, but not the answer I was looking for. :hmz:

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Thu Apr 09, 2009 9:27 am 
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Had to look up the definition of them on the PC here and still not really sure.

Squall is sudden, violent winds, sometimes accompanied by rain.

Gusts are also strong wind with bursts of speed at times.

I think the difference is that squalls are accompanied by rain (I actually always understood it to be rain storms :redface: ) whereas gusts are just wind.

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Thu Apr 09, 2009 10:32 am 
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Bishop, fairly close.

I'll provide the answer (sorry OWN, I know your kipping and would like to have answered :tongue: ) as I'm not going to be online until Tuesday again - away fly fishing for the weekend.

Gust are short increases in wind speed - usually a few seconds
Squalls are also increases in wind speed but they last much longer - several minutes.

Rain does not necessarily come into play as you can have squalls without rain and gusts are pretty normal in any windy conditions.

Have a fantastic Easter weekend all

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Fri Apr 10, 2009 1:58 am 
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No probs, Timepilot; we all have to kip sometime. Nice question. :thumbs_up: Enjoy fishing for flies!

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