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Old 01-11-2011, 10:15 PM
 
Location: Mildura, Vic Australia
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Don't know what what the record dewpoint in Melbourne is, but this can't be too far off:

Wednesday Jan 12, 4pm obs


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Old 01-11-2011, 11:13 PM
 
Location: Bangkok, Thailand
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I noticed that earlier and thought it must be pretty unusual. Melbourne could almost pass for Brisbane right now.
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Old 01-11-2011, 11:26 PM
 
Location: Mildura, Vic Australia
102 posts, read 146,499 times
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certainly an uncommon weather pattern. Same sort of dewpoints here, I'm enjoying it, love the smell of humidity and that tropical feeling not to mention the warm rain
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Old 01-12-2011, 06:20 PM
 
Location: Mildura, Vic Australia
102 posts, read 146,499 times
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some cracker dewpoints in Melbourne atm, the highest I've ever seen!

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Old 01-12-2011, 07:10 PM
 
Location: London, UK
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I don't know much about dewpoints but is 23°C that high? It's just like 23°C with full humidity right? What's special about it ?
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Old 01-12-2011, 07:26 PM
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Location: Western Massachusetts
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It's rather sticky, but not that extreme. Maybe it is for Melbourne though.
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Old 01-12-2011, 07:31 PM
 
Location: Mildura, Vic Australia
102 posts, read 146,499 times
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Quote:
Originally Posted by dhdh View Post
I don't know much about dewpoints but is 23°C that high? It's just like 23°C with full humidity right? What's special about it ?
Well, if you knew the slightest thing about Melbourne's climate you'd understand why it's special

Firstly, Melbourne lies between a dry-semi arid region to the north and a freezing cold ocean to the south, at lat 38 deg south. Is that conductive to high dewpoints? No. Now, I know places in USA and Asia at that latitude get dewpoints that high easily, keep in mind they have oceans with SSTs of ~25-30C in the form of the Gulf of Mexico, the Gulfstream and the warm seas of the north Pacific and South China seas, which are not only at comparitively higher latitudes than their southern counter parts, but with strong currents that draw these warm waters right up deep into temperate latitudes.

Southern Australia lies at the boundary of a freezing ocean with SSTs under 20C even in mid summer, and a dry inland area with normally little rainfall. The nearest Ocean to Melbourne with SSTs inexcess of 25C lies 1000km away. Such warm waters tend to stay around the northern half of the country, as ocean currents here are not strong enough to draw this water far south, and furthermore, even if that was the case, Melbourne's location would mean that this water would bypass the area entirely. It is no small feat to get dewpoints like this in this location, and in my 20 years living in this region this is the first time I can remember prolonged dewpoints this high. We don't get monsoon troughs coming down this far, and most airmasses that even originate in the tropics tend to dry out by the time they get this far south.

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Old 01-12-2011, 07:40 PM
 
Location: London, UK
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I told you I knew little about dewpoints and what they represented. No need for this slightly agressive remark about my supposed ignorance about Melbourne's climate.
My question was not why it is so rare there but rather what feels so special about these conditions. Right now here it is 27°C with 85% RH, so a dewpoint of around 24°C I guess, and it feels like nothing special at all, thus I didn't really understand your point. That's it.
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Old 01-12-2011, 07:53 PM
nei nei won $500 in our forum's Most Engaging Poster Contest - Thirteenth Edition (Jan-Feb 2015). 

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Location: Western Massachusetts
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How do the locals react?

I was at an outdoor concert near my town when the dewpoint was 24°C. It was evening, and starting to fog over. If it has hot it would have been gross, but instead just very moist and kinda relaxing. Everyone seemed to enjoying themselves, and one of the performers (who was from a hotter climate) comment on the "beautiful evening". Local news called it a steambath.

@dhdh

If you live in a place without a high humidity, a high dewpoint might feel like a shock.
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Old 01-12-2011, 08:50 PM
 
Location: Mildura, Vic Australia
102 posts, read 146,499 times
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Quote:
Originally Posted by nei View Post
How do the locals react?

I was at an outdoor concert near my town when the dewpoint was 24°C. It was evening, and starting to fog over. If it has hot it would have been gross, but instead just very moist and kinda relaxing. Everyone seemed to enjoying themselves, and one of the performers (who was from a hotter climate) comment on the "beautiful evening". Local news called it a steambath.

@dhdh

If you live in a place without a high humidity, a high dewpoint might feel like a shock.
Some people on the aus weather forums seem to overreact, but really it is not as bad or as "steamy" as it otherwise would appear. I'm actually getting use to it now. But the air has that tropical smell, and your skin tends to get slimey.

temp 25.1C / dewpoint 24.2C here atm.

This takes the freakin cake though, this town on the south coast of Victoria just reached a dewpoint of 27C!!!!!!!!!

http://img411.imageshack.us/img411/7848/dp2.gif (broken link)




This town in northwest Vic is also getting dewpoints close to 26C
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