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Discussion: Valleys

in: biddy; biddy > 2018-01-19

Jan 18, 2018 9:15 PM # 
Robin:
First thing in the morning the temperature is always lower in the valleys!
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Jan 18, 2018 9:48 PM # 
biddy:
It felt like it was 15 degrees
Jan 18, 2018 10:40 PM # 
jennycas:
Long Gully was lovely last night, Zara even jumped in the dam :)
Jan 18, 2018 10:48 PM # 
Robin:
So she couldn't wait to get home and jump in her own pool!
Jan 19, 2018 5:44 AM # 
blairtrewin:
Today's conditions were especially favourable for big valley-hill differences (dry air, not much wind). Certainly quite plausible for valley floors to be 10 degrees or more cooler than more exposed sites under the right conditions - I've seen differences of up to 15 degrees at some NSW locations.
Jan 19, 2018 12:44 PM # 
Zed:
Robin I did both :)
Jan 20, 2018 12:48 AM # 
blairtrewin:
In fact there are a few nice examples today in NSW and eastern Victoria - in east Gippsland, Omeo (in a valley) and Combienbar (on a hill) are at around the same altitude, but Combienbar's minimum today was 26.6 and Omeo's 13.3. (The Omeo site is by no means ideally positioned to capture the maximum valley cooling, so it was probably sub-10 in places on the valley floor). Also 11-degree differences between the NSW pairs of Cabramurra/Perisher, and Moss Vale/High Range.

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