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Old 02-12-2019, 12:30 AM
 
Location: Sydney, Australia
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Our version of 'polar vortex' in Australia today, with snow falling in the Tasmanian highlands (above 800m):



Meanwhile, it's hot, windy and dry here with a high of 37C and possible raised dust in the evening.
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Old 02-12-2019, 09:11 PM
 
Location: Buenos Aires and La Plata, ARG
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BA in Melbourne mode these last days:



And speaking about snow, they had some in the mountains of Mendoza today:

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Old 02-12-2019, 10:54 PM
 
Location: Anglers Reach, NSW (Australia)
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Maximum today seems to have topped at 13.4 C, as it has plummeted since the last half-hour; Cabramurra managed 11.7 C as its maximum.

Diurnal range = 1.7 / 13.4 C; 2 / 13 C (rounded).

Farther eastwards and leeward, Cooma AP scored itself a staggering 17.9 C
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Old 02-13-2019, 02:06 AM
 
Location: Edmonton, Canada
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Quote:
Originally Posted by Adaminaby Angler View Post
Maximum today seems to have topped at 13.4 C, as it has plummeted since the last half-hour; Cabramurra managed 11.7 C as its maximum.

Diurnal range = 1.7 / 13.4 C; 2 / 13 C (rounded).

Farther eastwards and leeward, Cooma AP scored itself a staggering 17.9 C
Meanwhile pretty hot and humid in SEQ today. At 12:00 noon Gold Coast Seaway was 31.9C with a dew point of 28.0C.

Latest Capital City Observations Gold Coast Seaway
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Old 02-14-2019, 10:12 PM
 
Location: Edmonton, Canada
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Here's a good summary of the recent epic rainfalls in North Queensland. More than 6 feet in just 12 days in places.

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Old 02-15-2019, 03:01 AM
 
Location: Top of the South, NZ
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Quote:
Originally Posted by RWood View Post
We will be in the region a few days later this month, prefer any rain to be before or after then

In other news, I have been catching up on detailed data for Cropp Waterfall. It has been a bit "drier" this decade but I note that NIWA's table of extreme rainfalls on their website is out of date. There was a fall of 864.5mm in a 24-hour period starting 1200 on 1 January 2013 (this rain event caused significant damage in S Westland and knocked out a few cell towers), easily beating their cited record of 758mm in 1989 at Cropp. Also, the cited 1049mm for a 48-hour period (again at Cropp) was exceeded by 1062.0mm from 0400 on 1 Jan 2013.


I doubt if there are any accredited rainfall sites outside the tropics that can beat Cropp's numbers (until we set up something suitable in NZ at some point). Apart from the 24-hour and 48-hour records, the calendar month record of 2927mm and 31-day record of 3813mm are worth noting.

All the more interesting is that there has also been a period of 679 hours (28 days and 7 hours) ending at 0200 on 28 July 2001 when no rainfall was recorded there. This event started at the end of June 2001 and came close to producing a rainless calendar month. An intense frosty anticyclone was located over the southwestern 1/3 of the South Island for about 3 weeks.
I somehow missed this post -some pretty serious rainfall, and would be good to see NIWA update it. January 1st is an easy date to remember. One certainly has to consider that the highest annual rainfall worldwide, might be somewhere along that stretch of mountains.

I remember the July 2001 event -the first winter back in Motueka, and the sustained high pressure caused some interesting effects, like accumulated frost in the shadows (even on the beach), with a strong sun and maximums up to 14C -a ground level inversion layer perhaps? Also had frost heave around the wetter areas on the property up to around 9 inches deep.
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Old 02-15-2019, 02:37 PM
 
Location: Edmonton, Canada
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Quote:
Originally Posted by Joe90 View Post
I somehow missed this post -some pretty serious rainfall, and would be good to see NIWA update it. January 1st is an easy date to remember. One certainly has to consider that the highest annual rainfall worldwide, might be somewhere along that stretch of mountains.

I remember the July 2001 event -the first winter back in Motueka, and the sustained high pressure caused some interesting effects, like accumulated frost in the shadows (even on the beach), with a strong sun and maximums up to 14C -a ground level inversion layer perhaps? Also had frost heave around the wetter areas on the property up to around 9 inches deep.
Speaking of heavy rainfall, the remnants of the tropical depression that flooded North Queensland have reorganized themselves over the Coral Sea to form tropical cyclone Oma. This system could cause big trouble for New Caledonia in the days to come. Here's the guidance from JTWC:

Source: Joint Typhoon Warning Center (JTWC)

One she clears New Caledonia there's a lot of uncertainty in her path. One possibility is a continued southwest track to make landfall over South East Queensland. However, a more likely scenario is to curve southeast and acquire extratropical characteristics as she wreaks havoc on New Zealand. Here's GFS for next weekend:

Source: https://www.tropicaltidbits.com/analysis/models/

Hang on tight wherever you are!
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Old 02-16-2019, 07:32 PM
 
Location: Buenos Aires and La Plata, ARG
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New heat wave ongoing in Patagonia.

Some maxs today around there:

Trelew 41C (43S) New monthly record
Comodoro Rivadavia 37.7C (45S)
Maquinchao 37C (41S)

And yesterday Esquel set a new record with 35.6C! while El Calafate tied it with 28.4C.

The heat will come here this upcoming week. So, the summer is long as always...
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Old 02-17-2019, 06:59 PM
 
Location: Top of the South, NZ
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Quote:
Originally Posted by Ed's Mountain View Post
Speaking of heavy rainfall, the remnants of the tropical depression that flooded North Queensland have reorganized themselves over the Coral Sea to form tropical cyclone Oma. This system could cause big trouble for New Caledonia in the days to come.

One she clears New Caledonia there's a lot of uncertainty in her path. One possibility is a continued southwest track to make landfall over South East Queensland. However, a more likely scenario is to curve southeast and acquire extratropical characteristics as she wreaks havoc on New Zealand.


Hang on tight wherever you are!
Yes, it's certainly a case of be careful what you wish for. It's been dry in Motueka lately (6mm for the last 8 weeks), but ex-cyclones aren't the best way to end a dry spell -more landslides and storm surges, we can do without.

Chance of an Aussie dust cloud crossing NZ during the coming week. It might make for some good photos.
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Old 02-17-2019, 08:02 PM
 
Location: Edmonton, Canada
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Quote:
Originally Posted by Joe90 View Post
Yes, it's certainly a case of be careful what you wish for. It's been dry in Motueka lately (6mm for the last 8 weeks), but ex-cyclones aren't the best way to end a dry spell -more landslides and storm surges, we can do without.

Chance of an Aussie dust cloud crossing NZ during the coming week. It might make for some good photos.
Still a lot of uncertainty in the forecast models with this one but most of them still calling for an eventual turn to the SE with subsequent transition to extratropical. This is reflected in the latest JTWC warning.


Source: Joint Typhoon Warning Center (JTWC)

Interesting that the main outlier is the Euro operational which has a very near approach to SEQ before turning right and heading back north just before landfall. I say interesting because the Euro has recently had the best forecast skill for these systems.


Source: https://www.tropicaltidbits.com/analysis/models/
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