** Boaties Test No. 2 ** (A tuff one!)

[Mudcrab]

Q1. A strong Cold Front has been forecast to pass through Brisbane. The weather
associated with it’s frontal passage most probably will be:

a) Strong SE winds with heavy rain
b) Storms, rain and squalls
c) Cold westerly winds followed by severe storms
d) Calm and still conditions followed by steady rain for several days

Q2. A Sea Breeze invariably comes from which direction in SE Queensland:

a) South West
b) South East
c) North East
d) North West

Q3. A high pressure system is over Brisbane. Associated weather will usually be:

a) Clear days with moderate south easterly winds
b) High overcast cloud coverage with moderate south easterly winds
c) Low overcast cloud coverage with moderate south easterly winds
d) Clear and calm conditions

Q4. Fog is normally associated with which type of weather system:

a) The centre of a High Pressure System over Brisbane and extensive overcast
b) The centre of a High Pressure System over Brisbane and winds more 15 kts
c) The centre of a High Pressure System over Brisbane with dead calm winds
d) The centre of a High Pressure System over Brisbane with very light winds

Q5. Most (not all) weather systems in Australia move from:

a) West to East tending to drift north
b) East to West tending to drift south
c) West to East tending to drift south
d) East to West tending to drift north

Q6. A Sea Breeze generally lasts:

a) All day
b) All night
c) Night only
d) Afternoons to late evenings

Q7. The forecast is for a ridge of high pressure along the Qld Coast. Winds in the
Moreton Bay and SE Qld areas will most probably be:

a) West to south west
b) North to north west
c) South east to east
d) North east to north

Q8. The forecast wind is 25 knots. The maximum most likely can therefore be:

a) 30 knots
b) 25 knots
c) 50 knots
d) 35 knots

Q9. An intense LOW Pressure system has suddenly formed off northern NSW. Weather
in Moreton Bay may be:

a) Gale force south westerly winds but little rain
b) Very little affect but a few showers possible
c) Strong north easterly winds, storms and heavy rain
d) Strong south easterly winds, storms and heavy rain

Q10. As a generalization, HIGH and LOW pressure systems produce:

a) Poor weather – good weather
b) Good weather – good weather
c) Good weather – poor weather
d) Poor weather – poor weather






ANSWERS: 1B 2C 3C 4D 5C 6D 7C 8D 9D 10C

Q4: Without light winds to stir the surface layer of air you will only get Dew not fog!
Any cloud overcast will reduce the cooling affect and prevent fog formation

[nofrills]

good stuff VMR
cheers scott

[Kerry]

Ok can I ask the tuff questions?

I'm not of the area but knowing a little about the generic pattern of a high sitting right overhead Ques 3 & 4 appears to conflict. I could convince myself the answers are switched ??? as one isn't going to get moderate SE's and low cloud from smack bang in the middle of a high (over Brisbane).

Also Ques 9 and realizing things can be rather variable just depending where (and how far out) this low formed but the norm for a low (especially in winter) forming just off the coast gives Brisbane the traditional westerlies.

Cheers, Kerry.

[Big_Kev]

Well I got 50%.
Should send it to the BOM and see how good they do, LOL.
Cheers Kev.

[Fisherman02]

ROFLMAo
they wouldn't do it!
Too many big words
cheers jack

[Lucky_Phill]

I'm with you Kev.

I got the Q's mostly right allowing for cusp conditions.................

Last weekend was a doozey for the BOM.

Friday forecast ( light winds & showers )...actually ...10 knots and a freekin storm.

Saturday forecast ( 15-20knt sw/s and 1.7 seas )... actually 5knot sw and less than 1mtr.

DOH !

I think the BOM should stop taking notice of their computer forecasts and stick their head out the window more often.......... ;D ??? ::)

Phill

[webby]

Hi, Im no wx expert, but i've found if a big high parked over Brisbane usually produces clear days possible high cloud and variable winds, which in turn during winter due to warm days and cool night produces patchs of fog.

And i would say 99.9% of wx fronts move from west to east rotating anti clock wise.
The 1 % would be lows pressure systems with the intent of turning into a cyclone.
Correct me if im wrong
regards

[Surfwx]

I think the secret to questions 3 & 4 is the word centre?
Question 3 is more than likely talking about a setup like this:

http://www.users.bigpond.com/surf_wx/images/msl_small.gif (http://www.users.bigpond.com/surf_wx/images/bigmsl.gif)

I'm with Kerry on question 9, a is more like the right answer?

[Kerry]

High over brisbane, I was thinking more about this situation

http://www.bom.gov.au/difacs/archives/2003/07/IDX0102.20030701.gif

Cheers, Kerry.

[SteveCan]

50% mark for me too Kev.

Bit more subjective these questions - but keep it up VMR :)

Cheers
Steve

[Lucky_Phill]

Isn't the H for High expectations of fish, and the L for Low expectations ?

Put a high of 1020 right on top of Brisvegas and you won't find me at work........... 8) 8)

Phill

[PinHead]

I agree..a high over Brisbane would give great conditions..similar to the centre of a cyclone in that respect...the winds radiate out from the centre of a pressure system and circulate dependent on the pressures...anti clockwise for a high..clockwise for a low.
The centre of the weather pattern is quite calm.

Q3 and Q4 contradict each other..you cannot have moderate south eat winds as in Q3 and have fog forming. Fog will only form with very little or no wind.

The tests are good but let's get em right. I work on this idea..I look outside..the leaves on the mango tree aren't moving..the sun is shining..FISHING TIME...then keep an eye out from there..I have given up on forecasts..I have taken notice of them before..rain storms etc..stayed home and what happens..I end up mowing the lawn in bright sunshine. Not any more.