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SAB

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Posted
  • Location: Melbourne, Australia
  • Location: Melbourne, Australia

First week of summer will start off on a horrible note here. Putrid cold southwesterlies with cloud and showers expected for the next 5 days with

max temps as low as 18-19C. Posted Image Today kicked off this extended run of filth with a cloudy high of 20C. Only two days of 30C forecast late week before returning to freaking 19C wintry tripe again. Typcial Melbourne Posted Image

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Posted
  • Location: Hobart, Tasmania
  • Location: Hobart, Tasmania

First week of summer will start off on a horrible note here. Putrid cold southwesterlies with cloud and showers expected for the next 5 days with

max temps as low as 18-19C. Posted Image Today kicked off this extended run of filth with a cloudy high of 20C. Only two days of 30C forecast late week before returning to freaking 19C wintry tripe again. Typcial Melbourne Posted Image

15 maximum for Hobart on Tuesday and Wednesday, with mountain snowfalls to 800 metres. That is as refreshing as a cold beer after a hard day after 2 consecutive 30+ days here..beautiful!

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Posted
  • Location: Beccles, Suffolk.
  • Weather Preferences: Thunder, snow, heat, sunshine...
  • Location: Beccles, Suffolk.

First week of summer will start off on a horrible note here. Putrid cold southwesterlies with cloud and showers expected for the next 5 days with

max temps as low as 18-19C. Posted Image Today kicked off this extended run of filth with a cloudy high of 20C. Only two days of 30C forecast late week before returning to freaking 19C wintry tripe again. Typcial Melbourne Posted Image

Blimey guys, just when all us poms are complaining coz it ain't cold enough!Posted Image

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Posted
  • Location: Bratislava, Slovakia
  • Location: Bratislava, Slovakia

First week of summer will start off on a horrible note here. Putrid cold southwesterlies with cloud and showers expected for the next 5 days with

max temps as low as 18-19C. Posted Image Today kicked off this extended run of filth with a cloudy high of 20C. Only two days of 30C forecast late week before returning to freaking 19C wintry tripe again. Typcial Melbourne Posted Image

Hvae you already forgotten the 39C you received on Thursday? Or is that too hot? Edited by AderynCoch
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Posted
  • Location: Melbourne, Australia
  • Location: Melbourne, Australia

Yes we had that 39C on Thurs, but was a work day so not at all enjoyable, although the beer after that bloody 11 hour shift was!!! Had a 24.1C overnight low the following night.

High dewpoints with that heat aswell, Essendon Airport recorded 37C/20C at one point in the afternoon. Lot of dewpoints above 20C with 30+ temps aswell throughout Melbourne during the day, which is quite unusual.

First week of December looks like the first week of September in the forecast, no storms, no warmth, just stratus and drizzly showers with constant southwesterlies. Absolutely disgusting. Posted Image

Edited by SAB
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Posted
  • Location: South West Rocks, New South Wales, Australia
  • Location: South West Rocks, New South Wales, Australia

Some decent storms in the west of the region at the moment, including quite a severe storm at Tamworth which has got a special mention in the current Severe Storm Warning:

SEVERE THUNDERSTORM WARNING for LARGE HAILSTONES and DAMAGING WIND

For people in the Northern Tablelands and parts of the Northern Rivers, Mid North Coast, Hunter, Central Tablelands and North West Slopes and Plains Forecast Districts.

Issued at 3:45 pm Monday, 3 December 2012.

Severe thunderstorms are likely to produce large hailstones and damaging winds in the warning area over the next several hours. Locations which may be affected include Grafton, Scone, Armidale, Tenterfield, Glen Innes, Inverell, Tamworth, Casino, Tabulam, Maclean, Dorrigo and Glenreagh.

1. Maximum gust recorded at Tamworth automatic weather station was 53kt (98km/h).

2. Storm spotter from Tamworth area reported hail of size 3.5cm.

3. Storm spotter reported cricket ball sized hail from Tamworth.

4. Reports of window and roof damage in Tamworth.

~~~~~~~~~~~~~~

Cricket ball sized hail!!!!!!! Yikes. Posted Image

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Posted
  • Location: Melbourne, Australia
  • Location: Melbourne, Australia

Not sure why the cicadas are blaring when tomorrow's forecast is a pathetic 18C with an overnight low of 12. Posted Image

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Posted
  • Location: Whitkirk, Leeds 86m asl
  • Weather Preferences: Anything but mild south-westeries in winter
  • Location: Whitkirk, Leeds 86m asl

Some decent storms in the west of the region at the moment, including quite a severe storm at Tamworth which has got a special mention in the current Severe Storm Warning:

SEVERE THUNDERSTORM WARNING for LARGE HAILSTONES and DAMAGING WIND

For people in the Northern Tablelands and parts of the Northern Rivers, Mid North Coast, Hunter, Central Tablelands and North West Slopes and Plains Forecast Districts.

Issued at 3:45 pm Monday, 3 December 2012.

Severe thunderstorms are likely to produce large hailstones and damaging winds in the warning area over the next several hours. Locations which may be affected include Grafton, Scone, Armidale, Tenterfield, Glen Innes, Inverell, Tamworth, Casino, Tabulam, Maclean, Dorrigo and Glenreagh.

1. Maximum gust recorded at Tamworth automatic weather station was 53kt (98km/h).

2. Storm spotter from Tamworth area reported hail of size 3.5cm.

3. Storm spotter reported cricket ball sized hail from Tamworth.

4. Reports of window and roof damage in Tamworth.

~~~~~~~~~~~~~~

Cricket ball sized hail!!!!!!! Yikes. Posted Image

Not Tamworth in Staffordshire then. Posted Image

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Posted
  • Location: South West Rocks, New South Wales, Australia
  • Location: South West Rocks, New South Wales, Australia

Lol. It was actually named after the UK's Tamworth though (http://en.wikipedia.org/wiki/Tamworth,_New_South_Wales)

Several storms here since yesterday afternoon, including quite a lightning active storm in the early hours of this morning (Dec 4th). Summer is off to a stormy start. Posted Image

Already a couple of short videos uploaded onto YouTube of the Tamworth storm:

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Posted
  • Location: Melbourne, Victoria
  • Location: Melbourne, Victoria

Personally i'm loving this Melbourne summer. Have only moved to Oz from London in the last month, mind you. I quite like that we get sunny days of 20 degrees, then warmer, then belting hot ones, then back down to cool again! Now looking forward to the forecast 37 degrees on Saturday! bonkers!

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Posted
  • Location: Hobart, Tasmania
  • Location: Hobart, Tasmania

Already 26 degrees here at 0830 today..... low of 22 last night. blustery hot northerly wind getting up - perhaps we could reach 38 today.

Welcome to Australia. Hope everything works out well for you! Better get used this heat, it only gets hotter from here on in!

But perhaps never like Jan-Feb 2009!

Posted Image

http://en.wikipedia.org/wiki/Early_2009_southeastern_Australia_heat_wave

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Posted
  • Location: South West Rocks, New South Wales, Australia
  • Location: South West Rocks, New South Wales, Australia

Summary here over the past week (Date/Min/Max/MaxWindGustDirection&Time/24hrRainfall):

Dec 2nd - 21.2ºC/29.1ºC - NE 44km/h @ 10:47am - 1.0mm

Dec 3rd - 21.6ºC/26.3ºC - SW 37km/h @ 3:14am - 34.4mm

Dec 4th - 20.0ºC/27.9ºC - NNW 41km/h @ 11:14pm - Nil

Dec 5th - 14.2ºC/29.8ºC - SSW 35km/h @ 8:42am - Nil

Dec 6th - 14.0ºC/25.2ºC - S 28km/h @ 9:27am - Nil

Dec 7th - 17.3ºC/25.7ºC - NNE 35km/h @ 3:01pm - Nil

Dec 8th - 19.6ºC/26.3ºC - NE 46km/h @ 11:25am - 5.0mm

Past week:

A trough brought thunderstorms to the area during the 2nd, 3rd and into the early hours of the 4th, with some severe storms occurring across the region. One of the storms we received was quite lightning active and occurred in the early hours of the 4th (before 9am, so rainfall attributed to the 3rd). The trough moved through during the 4th bringing drier and stable air behind it. The dry air persisted on the 5th and for most of the 6th, before the wind turned NE'ly and very quickly brought an increase in humidity. The 14ºC minimums on the 5th and 6th are quite cool for this time of year. A trough approached the region yesterday (8th), with some thundery rain in the afternoon.

This week (Dec 9th to Dec 15th):

A trough is sitting near the region, with storms currently firing on the ranges and faint distant thunder here. The wind shear this afternoon is not favourable for storms to reach the coastline, but a slight chance does remain.

From late tonight and through until Tuesday night, a trough will sit offshore of the coast and combine with humid winds to bring some showers over this period, mainly during the evening/night. Slight chance of a storm during this period too.

Weak onshore winds during Wednesday and Thursday bring the risk of a light shower or two, but overall, it should be mostly fine. A ridge of high pressure is expected to bring fine conditions through Friday and Saturday.

Edited by NorthNSW
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Posted
  • Location: Hobart, Tasmania
  • Location: Hobart, Tasmania

Got the following information from this site http://webdev.earthsci.unimelb.edu.au/~blair/extremes/extpage.html and for data after 1998, consulted the weather bureau's website.

Coldest Christmas Days

( Highest temperature 9am Christmas day-9am Boxing day )

Brisbane 23.8 ( 1909 )

Perth 19.6 ( 1945 )

Adelaide 17.4 ( 1922 )

Sydney 16.7 ( 1926 )

Canberra 14.5 ( 1957 )

Melbourne 14.5 ( 2006 )

Hobart 12.6 ( 1984 )

Hottest Christmas Days

Adelaide 42.1 ( 1888 )

Melbourne 40.7 ( 1907 )

Perth 40.4 ( 1968 )

Brisbane 39.2 ( 1972 )

Sydney 38.6 ( 1896 )

Canberra 37.1 ( 1957 )

Hobart 34.3 ( 1945 )

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Posted
  • Location: South West Rocks, New South Wales, Australia
  • Location: South West Rocks, New South Wales, Australia

Great link Styx. I always wondered if there was a database somewhere for daily records, rather than trawling through each individual year on BOM, lol.

For the site nearest to me available on that Uni Melbourne database:

Coffs Harbour (60kms north of here):

Hottest Christmas Day - 38.2ºC (1957)

Coldest Christmas Day - 22.7ºC (1995)

It is quite rare to get a day below 20ºC here from around right now (mid Dec) until the end of March. A max below 20ºC has never occurred in February (record low Feb max: 20.1ºC).

Just realised you forgot Darwin Posted Image

Hottest Christmas Day: 34.9ºC (1961)

Coldest Christmas Day: 27.9ºC (1997)

Edited by NorthNSW
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Posted
  • Location: Bratislava, Slovakia
  • Location: Bratislava, Slovakia

Got the following information from this site http://webdev.earths...es/extpage.html and for data after 1998, consulted the weather bureau's website.

Coldest Christmas Days

( Highest temperature 9am Christmas day-9am Boxing day )

Brisbane 23.8 ( 1909 )

Perth 19.6 ( 1945 )

Adelaide 17.4 ( 1922 )

Sydney 16.7 ( 1926 )

Canberra 14.5 ( 1957 )

Melbourne 14.5 ( 2006 )

Hobart 12.6 ( 1984 )

Hottest Christmas Days

Adelaide 42.1 ( 1888 )

Melbourne 40.7 ( 1907 )

Perth 40.4 ( 1968 )

Brisbane 39.2 ( 1972 )

Sydney 38.6 ( 1896 )

Canberra 37.1 ( 1957 )

Hobart 34.3 ( 1945 )

There's a mistake in there somewhere - Canberra is listed as having both records in the same year.
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Posted
  • Location: South West Rocks, New South Wales, Australia
  • Location: South West Rocks, New South Wales, Australia

There's a mistake in there somewhere - Canberra is listed as having both records in the same year.

Canberra's coldest Christmas Day was in 1947 (and the hottest in 1957). Posted Image
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Posted
  • Location: Bratislava, Slovakia
  • Location: Bratislava, Slovakia

Thanks!

It's worth noting that 1945 saw both Perth's coldest Christmas Day and Hobart's warmest (unless it's another mistake Posted Image ). It would be interesting to see a chart for that day, as I suspect there was a large low over Australia drawing hot northerly air on its eastern fringe and cold southerly air to the west.

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Posted
  • Location: South West Rocks, New South Wales, Australia
  • Location: South West Rocks, New South Wales, Australia

I reckon the Perth cold / Hobart hot Christmas day synoptic map would have looked somewhat similar to this synoptic chart from Dec 1st 1999 Posted Image

Posted Image

The stereotypical setup for heatwaves in Southeastern Australia is for a High to sitting in the Tasman Sea helping to direct winds into an approaching frontal/trough system, and funnelling these often hot and dry air over the southeast of the continent from the interior (the moist E/NE'lies blown onto the east coast tend to dry out by the time they reach the interior). Most of the country experienced dry conditions from around 1940 to 1945, which would have aided in creation of heatwaves to an extent (in Central Australia: little/no cloudcover + low humidity = heat buildup).

A temp below 20 degrees is quite cool for Perth in December, and it probably suggests that a cold front passed through the region with thick cloudcover. A good chance it had precipitation accompanying it too, which would have helped keep temperatures down so low. It probably would have come through in the morning, around 8-9am with the peak of the system passing through during daylight hours.

It would be cool if there were an archive somewhere for synoptic charts for Australia. You'd be able to check the past synoptic patterns with extreme events.

BOM only has the maps publically available back to 1999.

Edited by NorthNSW
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Posted
  • Location: Hobart, Tasmania
  • Location: Hobart, Tasmania

Thanks for the correcetion, my error! Everthing else is good.

There is often an inverse relationship between temperature extremes in Perth and Hobart. I think the 1999 synoptic chart is a good example, but in relation to Christmas 1945, I would hazard a guess that the High in the west would be much further south, allowing it to direct a deeper pulse of cold air over SW Western Australia.

Interestingly, 1972 was a special Christmas in Hobart. I remember reading an old newspaper article about it in the library archives. Heavy snow descended to the foothills around Hobart, as the temperature dropped to 4.1 degrees Christmas Eve night, with 30mm of rain in the city. Many elevated roads were blocked by snow the next day.

This incidentally was the Christmas that Brisbane had its record high temperature for the date.

Would love to see the synoptics for that day, all accounts it was an historic event!

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Posted
  • Location: South West Rocks, New South Wales, Australia
  • Location: South West Rocks, New South Wales, Australia

There is often an inverse relationship between temperature extremes in Perth and Hobart. I think the 1999 synoptic chart is a good example, but in relation to Christmas 1945, I would hazard a guess that the High in the west would be much further south, allowing it to direct a deeper pulse of cold air over SW Western Australia.

I agree, that would help to give the cold pulse of air that extra bit of edge.

Btw, I looked up the maximum temps for the southern capitals on the day of the synoptic above (1/12/1999):

Perth - 21.7ºC

Adelaide - 34.8ºC

Melbourne - 35.2ºC

Hobart - 35.2ºC

Canberra - 30.1ºC

Sydney - 25.3ºC

I think Sydney would probably be the pick of the bunch on that day. Posted Image

~~~~

A light shower yesterday has pushed us up to exactly 1400mm for the year so far, so even if we don't quite reach 1484.6mm by the end of the year, I think you could still call it an average year of rainfall.

Edited by NorthNSW
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Posted
  • Location: South West Rocks, New South Wales, Australia
  • Location: South West Rocks, New South Wales, Australia

Summary here over the past week (Date/Min/Max/MaxWindGustDirection&Time/24hrRainfall):

Dec 9th - 19.9ºC/28.8ºC - NE 59km/h @ 1:50pm - 0.6mm

Dec 10th - 19.5ºC/24.5ºC - SSE 31km/h @ 11:48am - 12.0mm

Dec 11th - 18.3ºC/25.1ºC - SE 46km/h @ 5:02pm - 2.0mm

Dec 12th - 16.5ºC/25.2ºC - S 48km/h @ 12:57pm - 0.6mm

Dec 13th - 16.3ºC/25.1ºC - E 31km/h @ 1:25pm - Nil

Dec 14th - 15.0ºC/25.4ºC - NE 31km/h @ 1:36pm - Nil

Dec 15th - 16.1ºC/26.4ºC - NE 52km/h @ 12:27pm - 0.4mm

Past week:

Overall the week was a bit on cool side for summer thanks to S/SE'ly winds. Some showers earlier in the week from an onshore flow. A little bit of rain last night as a decaying rainband clipped the region.

This week (Dec 16th to Dec 22nd):

A trough will approach the region overnight, and is currently expected to stall across the north of the state all week. There is a low to moderate risk of a shower or storm from tomorrow onwards. The main area of instability is expected to sit near the ranges and the wind shear will also slacken as the week progresses, which makes things a bit unfavourable for us on the coast. Definitely one of those weeks where you could get nothing at all.

This week is looking warm and quite humid. We've had a maximum (so far) today of 30.5ºC. It may cool a little bit as we near the weekend though.

Edited by NorthNSW
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