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#1423054 - 10/05/2017 15:49 Re: What's happening in Tassie? [Re: yep]
orangeroughy Offline
Weather Freak

Registered: 14/08/2012
Posts: 640
Loc: Orange, NSW
Originally Posted By: yep
.

Weekend in Hobart was calm cloudy and cool...typical weather for most Mays I would suggest...Rose Bay High has updated its website presentation of the webcam view, they have added a daily time lapse view via youtube...and zoomed in a bit to remove the ugly view of the highway expansions at the front!


Yep, a handy webcam/site upgrade that one. Its one of my favourites. If I'm not mistaken the camera angle seems to have been tweeked to take in a bit more of the SW side of the mount.
_________________________
NW Orange NSW 860m asl

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#1423056 - 10/05/2017 16:15 Re: What's happening in Tassie? [Re: duckweather]
DaveM Offline
Meteorological Motor Mouth

Registered: 21/05/2001
Posts: 9501
Loc: Bathurst NSW about 700 m asl
Looking at the time lapses just really hits the heart strings - would really truly love to live back there!!!

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#1423153 - 12/05/2017 10:31 Re: What's happening in Tassie? [Re: duckweather]
DaveM Offline
Meteorological Motor Mouth

Registered: 21/05/2001
Posts: 9501
Loc: Bathurst NSW about 700 m asl
West coast looks wet again today.

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#1423157 - 12/05/2017 11:30 Re: What's happening in Tassie? [Re: Homer]
payshense Offline
Weather Freak

Registered: 06/03/2013
Posts: 875
Loc: West Coast, TAS, 310m ASL / Bu...
Originally Posted By: Homer
Does that mean it's been SnOwen? smile


Good onya Homer smile



Originally Posted By: DaveM
West coast looks wet again today.



That would be a big YES DM.

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#1423174 - 12/05/2017 15:21 Re: What's happening in Tassie? [Re: duckweather]
DaveM Offline
Meteorological Motor Mouth

Registered: 21/05/2001
Posts: 9501
Loc: Bathurst NSW about 700 m asl
Currently about 8 at Strahan, 6 at Mt Read.

About 15mm at Strahan so far.

Mmmmm nice n toasty - NOT

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#1423189 - 12/05/2017 20:54 Re: What's happening in Tassie? [Re: duckweather]
Snowies Offline
Weatherzone Addict

Registered: 16/10/2001
Posts: 1835
Loc: Westbury
Had 14mm today, some heavy showers earlier, might see a few more mm later tonight.

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#1423261 - 14/05/2017 10:12 Re: What's happening in Tassie? [Re: duckweather]
payshense Offline
Weather Freak

Registered: 06/03/2013
Posts: 875
Loc: West Coast, TAS, 310m ASL / Bu...
Hi all

Had a minimum of 2.5 last night. However on the southern side of the house we had a good frost/frozen dew. Apparently, there is a difference? My thermometer is in a sheltered position on the back porch, out of the wind and 1.5m above the ground. There is about 10m between my thermometer and where the frost/dew settled.

I dont quite get how there can be such a variation in temperature within such close proximity, or the difference between frost and frozen dew? Can anyone explain this please? smile

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#1423271 - 14/05/2017 10:51 Re: What's happening in Tassie? [Re: duckweather]
snowbooby Offline
Cloud Gazer

Registered: 11/05/2016
Posts: 39
I wouldn't be sure but only thing I can think of is damming of cold air against some sort of barrier - like vegetation or a structure though I imagine there would have to be a slope of some sort. Such close proximity though seems a bit unlikely..there may be some other explanation...did you notice frost on adjoining properties?

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#1423321 - 14/05/2017 20:58 Re: What's happening in Tassie? [Re: duckweather]
yep Offline
Weather Freak

Registered: 04/07/2013
Posts: 315
Loc: Hobart
I think the difference is, frost forms when the air layer near the surface is close to freezing, so the moisture in the air near the surface freezes and forms a layer on the ground. Frozen dew is when moisture droplets on the grass freeze from the surface/ground temperature alone.

You probably had frozen dew, considering what your thermometer was telling you. And you probably had a lot of dew forming if it was very noticable and frosty looking. Maybe your house was also radiating a little bit of heat, not much but enough to show a bit of a discrepancy. And if it was a very still night, add a surface inversion layer to the picture...the cold layer hugged the ground and didn't elevate because there was no mixing.

My explanation is just an attempt, not based on knowing a great deal about the technical aspects

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#1423322 - 14/05/2017 21:18 Re: What's happening in Tassie? [Re: duckweather]
snowbooby Offline
Cloud Gazer

Registered: 11/05/2016
Posts: 39
sounds pretty good to me

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#1423346 - 15/05/2017 10:32 Re: What's happening in Tassie? [Re: duckweather]
snowbooby Offline
Cloud Gazer

Registered: 11/05/2016
Posts: 39
...there's an old thread in the General Weather section "Grass Minimum Temperature" might provide more background


Edited by snowbooby (15/05/2017 10:33)

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#1423361 - 15/05/2017 15:09 Re: What's happening in Tassie? [Re: duckweather]
payshense Offline
Weather Freak

Registered: 06/03/2013
Posts: 875
Loc: West Coast, TAS, 310m ASL / Bu...
Hi all,

0.0 minimum this morning. Good frost.

Thanks for your thoughts guys.

"Frost" was very localised yesterday. Narrow corridor between house and heavily wooded fence line. SE slope. No neighbours to compare to.

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#1423395 - 16/05/2017 08:19 Re: What's happening in Tassie? [Re: duckweather]
Snowies Offline
Weatherzone Addict

Registered: 16/10/2001
Posts: 1835
Loc: Westbury
Cold up your way DM? Bathurst -1 this morning. We were down to 0.6 when I left home, despite a warm evening last night - was still 9 at 10pm.

Looks like substantial rain for the north this weekend and into early next week. Most places could see upwards of 100mm if latest model runs are anywhere near correct. Still a fair way out, so we'll see what the rest of the week brings.

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#1423400 - 16/05/2017 09:00 Re: What's happening in Tassie? [Re: duckweather]
DaveM Offline
Meteorological Motor Mouth

Registered: 21/05/2001
Posts: 9501
Loc: Bathurst NSW about 700 m asl
Yes Mate quite chilly because we have a very thick fog at that temp, vis less than 100m. No sign of lifting yet.

Toes feeling it this morning in the office. We were around 6 or 7 around 10pm last night.

I have a friend doing the Overland track, started either yesterday or today. He might need to be out by the weekend given your thoughts above re the rain grin And I reckon you're pretty close to the mark smile

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#1423402 - 16/05/2017 09:05 Re: What's happening in Tassie? [Re: duckweather]
Snowies Offline
Weatherzone Addict

Registered: 16/10/2001
Posts: 1835
Loc: Westbury
Yep, can already see it building over SA. Guess he has 4-5 days of good clear weather and frost nights to get through the track.

The fog always makes it feel colder, no sun on the face.

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#1423411 - 16/05/2017 10:50 Re: What's happening in Tassie? [Re: duckweather]
DaveM Offline
Meteorological Motor Mouth

Registered: 21/05/2001
Posts: 9501
Loc: Bathurst NSW about 700 m asl
Fog now cleared - lovely and sunny smile

Frosty mornings up on the O/T lovely. smile

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#1423455 - 16/05/2017 20:10 Re: What's happening in Tassie? [Re: duckweather]
BrightonBreeze Offline
Weather Freak

Registered: 12/07/2016
Posts: 147
Loc: Brighton, Tas 55m ASL
Evening all,

Been very quiet weather wise the past week, however looking better this weekend and mid next week going by the models!

Had the day off today so spent a bit of time cleaning and performing maintenance on the weather station, also lowered the mast and installed a Inspeed Vortex D2 Anemometer alongside the Davis anemometer, bit more accurate readings compared to the Davis!

Going to be a cold one tonight, bit worried about the forecast of cloud tomorrow! Could be a cold average day.. frown

Currently 2.3C and calm. smile

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#1423469 - 16/05/2017 23:13 Re: What's happening in Tassie? [Re: duckweather]
BrightonBreeze Offline
Weather Freak

Registered: 12/07/2016
Posts: 147
Loc: Brighton, Tas 55m ASL
Bit fresh outside atm, it's hovering just over zero, 0.1C to be precise! grin actually colder than the mountain! However not as cold as Liawenee which is currently -2.9C Icy!! grin

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#1423486 - 17/05/2017 09:20 Re: What's happening in Tassie? [Re: duckweather]
DaveM Offline
Meteorological Motor Mouth

Registered: 21/05/2001
Posts: 9501
Loc: Bathurst NSW about 700 m asl
That is fresh smile

Sat pickie shows that you may have that cloud cover today, certainly a good stream of it from the NW. smile

Thin cloud only so far?

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#1423494 - 17/05/2017 10:06 Re: What's happening in Tassie? [Re: duckweather]
Stale fish Offline
Weatherzone Addict

Registered: 23/06/2001
Posts: 2021
Loc: Leslie vale 310m asl
Cold and cloudy down at Blackmans Bay.
Around 7 degrees

Looking wet up North this weekend.

Also snow to sea level later this week for NZ South Island.

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