Jet Stream January 2014 (Birak in Sth)

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Re: Jet Stream January 2014 (Birak in Sth)

Postby schofield12 » Fri Jan 24, 2014 9:27 pm

Storm Wolf wrote:Anyone remember those amazing storms with the fireworks and the comet? That was Australia Day, right? A few years ago. I remember an Australia Day with lots of lightning, Metallica and alcohol on my balcony...good times.


Indeed it was Australia Day!

What was up with the E/NE gusty wind all day and into the evening? Not the norm?

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Re: Jet Stream January 2014 (Birak in Sth)

Postby Fu Manchu » Fri Jan 24, 2014 9:55 pm

No sea breeze is more common than we think, though the synoptic situation lends itself well to a strong easterly flow at the moment. A strong high in the bight but the area of low pressure in the north set up in a way we don't see everyday.
I'm just some pseudo amateur enthusiast when it comes to sea breezes, that's for sure.

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Re: Jet Stream January 2014 (Birak in Sth)

Postby Fu Manchu » Fri Jan 24, 2014 9:59 pm

Perhaps with recent cooler wet weather inland the air was not warm enough?

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Re: Jet Stream January 2014 (Birak in Sth)

Postby schofield12 » Fri Jan 24, 2014 10:05 pm

Also (clearly) not a pro myself, but given that I'm out training or whatever in the early evening most nights, I take notice of the wind direction constantly. Of course the howler sea breeze is the norm at this time of year, and whilst in the midst of a high pressure system its not unusual to get no sea breeze at all (or a very light one), this is the first time in a long time I've noticed such a strong and gusty E/NE at that time of afternoon. Weird :/

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Re: Jet Stream January 2014 (Birak in Sth)

Postby Fu Manchu » Fri Jan 24, 2014 10:11 pm

The rule is that 900m wind directions from offshore tend to favour sea breeze development, whilst those onshore tend to either complicate the sea breeze or make sure that we don't get a sea breeze at all.

Wind speeds either at the surface or at 900m in excess of 20 kt will generally keep a sea breeze out, providing that speeds don't drop out over the late morning or early afternoon period.

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Re: Jet Stream January 2014 (Birak in Sth)

Postby Fu Manchu » Fri Jan 24, 2014 10:11 pm

I have put the question to Neil Bennet.
In the mean time here is some links on sea breezes
http://www.bom.gov.au/nsw/amfs/Sea-Breeze.shtml

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Re: Jet Stream January 2014 (Birak in Sth)

Postby Fu Manchu » Fri Jan 24, 2014 10:14 pm


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Re: Jet Stream January 2014 (Birak in Sth)

Postby Fu Manchu » Fri Jan 24, 2014 10:41 pm

In the spirit of Australia Day, a classic skit by the D Gen guys back in the day.
http://www.youtube.com/watch?v=Da1OBE2dmeo

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Re: Jet Stream January 2014 (Birak in Sth)

Postby chartphred » Fri Jan 24, 2014 11:16 pm

Fu Manchu wrote:In the spirit of Australia Day, a classic skit by the D Gen guys back in the day.
http://www.youtube.com/watch?v=Da1OBE2dmeo


OMG bring on the thunderies... the heat must be getting to us!
nothing like a bit of cringeworthy classic Oz comedy! :mrgreen:
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Re: Jet Stream January 2014 (Birak in Sth)

Postby silvercloud » Sat Jan 25, 2014 8:00 am

Yeah that was about 4 or 5 years ago I think. Hmm can't really remember which one haha. Wow talk about extremes for you. There was storms forecast for tomorrow here but now it's only clearing shower :(

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Re: Jet Stream January 2014 (Birak in Sth)

Postby mackerelmauler » Sat Jan 25, 2014 8:29 am

I performed a P.E.A. this morning by washing my 4WD. It was dirty and needed a wash so I thought I would perform two activities at once rain making and washing my 4WD.

(P.E.A.) Precipitation Enhancement activity.
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Re: Jet Stream January 2014 (Birak in Sth)

Postby Fu Manchu » Sat Jan 25, 2014 12:57 pm

Pretty bloody hot, but it really isn't. Dew points are up a bit making it feel hotter or i should say stickier.

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Re: Jet Stream January 2014 (Birak in Sth)

Postby Benni.G. » Sat Jan 25, 2014 1:23 pm

Fu Manchu wrote:In the spirit of Australia Day, a classic skit by the D Gen guys back in the day.
http://www.youtube.com/watch?v=Da1OBE2dmeo

Lol, unbeleevable, was a top show The late Show
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Re: Jet Stream January 2014 (Birak in Sth)

Postby Storm Wolf » Sun Jan 26, 2014 12:48 pm

mackerelmauler wrote:I performed a P.E.A. this morning by washing my 4WD. It was dirty and needed a wash so I thought I would perform two activities at once rain making and washing my 4WD.

(P.E.A.) Precipitation Enhancement activity.


So, uh...buddy...while we're on the topic of car cleaning, how about you come over and clean my car for me too :P
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Re: Jet Stream January 2014 (Birak in Sth)

Postby floppy » Sun Jan 26, 2014 4:36 pm

Severe thunderstorm warning
A severe thunderstorm warning has been issued for a section of the State including the Gascoyne, Goldfields and Central Wheatbelt.

http://au.news.yahoo.com/thewest/a/2105 ... m-warning/
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Re: Jet Stream January 2014 (Birak in Sth)

Postby Fu Manchu » Mon Jan 27, 2014 8:58 am

Some quite nasty storms in the Pilbara yesterday.

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Re: Jet Stream January 2014 (Birak in Sth)

Postby Fu Manchu » Mon Jan 27, 2014 9:27 am

Image

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Re: Jet Stream January 2014 (Birak in Sth)

Postby Fu Manchu » Mon Jan 27, 2014 12:39 pm

IDW28201

Severe Thunderstorm Warning
for damaging wind, large hail and heavy rainfall
for the Gascoyne, Goldfields, Eucla, South Interior, South East Coastal and Central Wheat Belt forecast districts
Issued at 10:43 am WST on Monday 27 January 2014.
For people in parts of WA south of a line Esperance to Southern Cross to Three Rivers to Carnegie to Eyre. This includes people in or near Kalgoorlie. This does not include Esperance or Southern Cross.

People are advised that there is a risk of SEVERE THUNDERSTORMS from noon today and continuing into the evening.

Thunderstorms may be accompanied by

- HEAVY RAINFALL which may lead to FLASH FLOODING

Thunderstorms south of Kalgoorlie (including Kalgoorlie) may also be accompanied by

- DAMAGING WINDS

- LARGE HAIL

Thunderstorms could cause DAMAGE TO HOMES AND PROPERTY.

The overall weather pattern is not unusual for this time of year, but severe weather may occur in some parts of the warning area.

The Department of Fire and Emergency Services advises that people should:

If outside find safe shelter away from trees, power lines, storm water drains and streams.
Close your curtains and blinds, and stay inside away from windows.
Unplug electrical appliances and do not use land line telephones if there is lightning.
If there is flooding, create your own sandbags by using pillow cases filled with sand and place them around doorways to protect your home.
If boating, swimming or surfing leave the water.
Do not drive into water of unknown depth and current.
Slow down and turn your headlights on.
Be alert and watch for hazards on the road such as fallen power lines and loose debris.
If it is raining heavily and you can not see, pull over and park with your hazard lights on until the rain clears.

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Re: Jet Stream January 2014 (Birak in Sth)

Postby i.like.weather » Tue Jan 28, 2014 4:29 pm

Just a question: was it raining in the Busselton area last night from around 7 pm? I was on a cruise and it was quite choppy and very rough. I knew it was windy because we were eating outside but after that we went back to our rooms.

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Re: Jet Stream January 2014 (Birak in Sth)

Postby mackerelmauler » Tue Jan 28, 2014 10:22 pm

i.like.weather wrote:Just a question: was it raining in the Busselton area last night from around 7 pm? I was on a cruise and it was quite choppy and very rough. I knew it was windy because we were eating outside but after that we went back to our rooms.


I don't think there was any rain in the Busselton region last night. There was a fresh to strong Southerly sea breeze blowing from the data supplied from the Busselton Jetty AWS.
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