Big Fat High to round out May
Forum rules
These topics are a read-only archive and may be subject to out-of-date information.
For today's weather discussion head to: New Zealand Weather & Climate
These topics are a read-only archive and may be subject to out-of-date information.
For today's weather discussion head to: New Zealand Weather & Climate
-
- Moderator
- Posts: 5121
- Joined: Fri 10/02/2006 15:14
- Location: Halswell, Christchurch
- Has thanked: 717 times
- Been thanked: 923 times
Big Fat High to round out May
With all the doom and gloom threads of massive lows its very pleasing to report that a massive anticyclone looks set to dominate porceedings from an extended period from later this week.
Good news, there are areas around the place that really need to dry out!
Good news, there are areas around the place that really need to dry out!
Last edited by Razor on Wed 20/05/2009 09:25, edited 1 time in total.
Christchurch Rocks
Re: Big Fat High to round to round out May
Inland South Island will barely dry out at all with something like that. Low sun angle, pretty much no wind, all it's going to do is lock a lot of cold air in near the surface. The result will likely be crisp sunny days at first, with hard frosts and daytime highs struggling around single digits. I imagine it would get increasingly dirty as it hangs around, meaning there could be a fair bit of fog or low cloud.
Well, much of that is speculative forecasting, but it's hardly a good situation for drying out the high country.
Well, much of that is speculative forecasting, but it's hardly a good situation for drying out the high country.
-
- Posts: 9907
- Joined: Sun 29/06/2003 22:39
- Location: Mt Eden Auckland
- Has thanked: 839 times
- Been thanked: 866 times
Re: Big Fat High to round to round out May
Will allow river flows to drop, save the likes of Qtwn from another flood.but it's hardly a good situation for drying out the high country.
- Storm Struck
- Posts: 4859
- Joined: Wed 17/11/2004 21:25
- Location: Belfast Christchurch
- Has thanked: 23 times
- Been thanked: 373 times
Re: Big Fat High to round to round out May
Your a weather enthusiast and at a time like this you are looking forward to a High , how boring.
Cheers
Jason.
Cheers
Jason.
Canterbury, home of good rugby and severe storms
-
- Posts: 339
- Joined: Sun 12/08/2007 15:48
- Location: Invercargill / Dunedin / Queenstown
- Has thanked: 0
- Been thanked: 0
Re: Big Fat High to round to round out May
Frosts are quite inefficient at drying things out. It is often said that frosts "dry out" snow, all that is happening is the liquid water in the snow matrix is being refrozen...melja wrote:And frosts are very good at drying things out to.
There was never any real risk of flooding in Queenstown (although the shotover was looking good on Sunday morning).
-
- Moderator
- Posts: 5121
- Joined: Fri 10/02/2006 15:14
- Location: Halswell, Christchurch
- Has thanked: 717 times
- Been thanked: 923 times
Re: Big Fat High to round to round out May
Jason- I work with a lot of high country farmers whose income streams are at the mercy of severe weather events. So after all this water charging through up there over the past month a good dry out is well and truly in order, for the sake of the economic well being of a great many familiesJasestrm wrote:Your a weather enthusiast and at a time like this you are looking forward to a High , how boring.
Cheers
Jason.
Christchurch Rocks
-
- Banned
- Posts: 87
- Joined: Tue 08/07/2008 19:12
- Location: Lake Tekapo
- Has thanked: 0
- Been thanked: 0
Re: Big Fat High to round to round out May
Dont worry later the farmers will be complaining about a drought or snow falls.Razor wrote:Jason- I work with a lot of high country farmers whose income streams are at the mercy of severe weather events. So after all this water charging through up there over the past month a good dry out is well and truly in order, for the sake of the economic well being of a great many familiesJasestrm wrote:Your a weather enthusiast and at a time like this you are looking forward to a High , how boring.
Cheers
Jason.
- Storm Struck
- Posts: 4859
- Joined: Wed 17/11/2004 21:25
- Location: Belfast Christchurch
- Has thanked: 23 times
- Been thanked: 373 times
Re: Big Fat High to round to round out May
Fair enough i see your point and know what it means to farmers etc, even with winter crops it can be a tough time so settled weather can be welcome sometimes.
Shouldnt have said that sorry .
They might want to be watching for the hail in any thunderstorms that could occur tomorrow, preparing to cover crops if necessary.
Cheers
Jason.
Shouldnt have said that sorry .
They might want to be watching for the hail in any thunderstorms that could occur tomorrow, preparing to cover crops if necessary.
Cheers
Jason.
Canterbury, home of good rugby and severe storms
-
- Moderator
- Posts: 5121
- Joined: Fri 10/02/2006 15:14
- Location: Halswell, Christchurch
- Has thanked: 717 times
- Been thanked: 923 times
Re: Big Fat High to round to round out May
Indeed- I know sites like this are a useful monitoring forum for them.
I laughed when someone referred to this as a snow church!
I laughed when someone referred to this as a snow church!
Christchurch Rocks
-
- Posts: 339
- Joined: Sun 12/08/2007 15:48
- Location: Invercargill / Dunedin / Queenstown
- Has thanked: 0
- Been thanked: 0
- tgsnoopy
- Posts: 3653
- Joined: Fri 25/03/2005 21:17
- Location: Tauranga, NZ (Curse you COVID-19 :-( )
- Has thanked: 816 times
- Been thanked: 283 times
Re: Big Fat High to round to round out May
Gee, why does everyone seem to like bashing Gary so much?
Poor blokes not even here to upset anyone or defend himself even.
Poor blokes not even here to upset anyone or defend himself even.
- Michael
- Posts: 7210
- Joined: Thu 27/03/2003 12:04
- Location: Rainy Manurewa, Auckland - "City of Gales"
- Has thanked: 0
- Been thanked: 1 time
- Contact:
Re: Big Fat High to round to round out May
Dont mean much better here unless the high is pushed south by a sub tropical low.
-
- Posts: 18488
- Joined: Wed 12/03/2003 22:08
- Location: Raukapuka Geraldine
- Has thanked: 1769 times
- Been thanked: 1412 times
Re: Big Fat High to round to round out May
Oh a Big fat high, that's nice
..better up and sign on with the NZAAA, they're looking for members
JohnGaul
NZAAA
..better up and sign on with the NZAAA, they're looking for members
JohnGaul
NZAAA
JohnGaul
NZThS
NZThS
-
- Posts: 241
- Joined: Tue 13/06/2006 15:21
- Location: Dunedin
- Has thanked: 0
- Been thanked: 0
- Michael
- Posts: 7210
- Joined: Thu 27/03/2003 12:04
- Location: Rainy Manurewa, Auckland - "City of Gales"
- Has thanked: 0
- Been thanked: 1 time
- Contact:
Re: Big Fat High to round to round out May
not an exciting high yet,just horrible and windy and if not SW it will be Bee bop while it stalls in the tasman all week.
- Vertigo
- Posts: 1184
- Joined: Sun 09/12/2007 23:50
- Location: Henderson, Auckland
- Has thanked: 0
- Been thanked: 12 times
Re: Big Fat High to round to round out May
highs are never really exciting, unless they are moving away
-
- Posts: 2202
- Joined: Sun 11/06/2006 20:57
- Location: Waikawa, Picton
- Has thanked: 0
- Been thanked: 74 times
Re: Big Fat High to round to round out May
Frosts bring moisture to the surface of the ground were it can be removed better by wind and sun.southernthrash wrote:Frosts are quite inefficient at drying things out. It is often said that frosts "dry out" snow, all that is happening is the liquid water in the snow matrix is being refrozen...melja wrote:And frosts are very good at drying things out to.
There was never any real risk of flooding in Queenstown (although the shotover was looking good on Sunday morning).
-
- Posts: 339
- Joined: Sun 12/08/2007 15:48
- Location: Invercargill / Dunedin / Queenstown
- Has thanked: 0
- Been thanked: 0
Re: Big Fat High to round to round out May
That effect is very minor (some doubt whether it happens at all). Almost all the moisture that freezes during a frost is condensed out of the air. Even if that water was being drawn up through the soil, my own experience tells me that evaporation is minimal. Even on a bright, fine, sunny day following a frost (in Southland at least) there is barely enough energy for much evaporation to occur. Dew (thawed frost in this case) may persist through to the following evening, adding to the total water available to freeze, and creating some very interesting conditions.
I mean, if frosts bring moisture to the surface, how would you explain the fact that cars are often the first objects to develop a dew coating and freeze? It is because they undergo faster radiative cooling than the adjacent ground surfaces, promoting more rapid condensation.
I mean, if frosts bring moisture to the surface, how would you explain the fact that cars are often the first objects to develop a dew coating and freeze? It is because they undergo faster radiative cooling than the adjacent ground surfaces, promoting more rapid condensation.
-
- Posts: 12305
- Joined: Mon 10/03/2003 16:30
- Location: West Coast Road, Manukau Peninsula, North Island
- Has thanked: 0
- Been thanked: 0
- Contact:
Re: Big Fat High to round to round out May
one thing, cold polar outbreaks bring low dew point air
i.e low humidity as the day warms up ,i.e in fact good drying
i.e low humidity as the day warms up ,i.e in fact good drying
-
- Posts: 339
- Joined: Sun 12/08/2007 15:48
- Location: Invercargill / Dunedin / Queenstown
- Has thanked: 0
- Been thanked: 0
Re: Big Fat High to round to round out May
The two main requirements for evaporation are heating and mixing. Mixing being the wind, so yes, but accompanied by lower amounts of solar radiation (less energy), although this no longer relates to frosts... Diffusion is, again, a minor effect.
- gllitz
- Posts: 1335
- Joined: Wed 04/01/2006 11:45
- Location: Perth, Western Australia
- Has thanked: 0
- Been thanked: 0
Re: Big Fat High to round to round out May
So a question, then (I'm not stirring, here, I *am* actually curious)...Would the above, then, explain why washing tends to dry faster on warm + windy dry days as opposed to cold + windy dry days? Or maybe not...?southernthrash wrote:The two main requirements for evaporation are heating and mixing. Mixing being the wind, so yes, but accompanied by lower amounts of solar radiation (less energy), although this no longer relates to frosts... Diffusion is, again, a minor effect.
"Saru mo ki kara ochiru"
- CHCH Weather Chaser
- Posts: 3460
- Joined: Thu 26/06/2008 16:10
- Location: Halswell / Hoon Hay Christchurch
- Has thanked: 0
- Been thanked: 0
Re: Big Fat High to round to round out May
The high doesnt look as if it is going to help eastern areas too much with this showery weather looking to last till Sunday now.
Reporting Live from Southern Christchurch
Leighton Thomas
2014 Rainfall: Jan: 21mm Feb: 76mm March: 170mm April: 201mm YTD: 468mm
Leighton Thomas
2014 Rainfall: Jan: 21mm Feb: 76mm March: 170mm April: 201mm YTD: 468mm
-
- Posts: 339
- Joined: Sun 12/08/2007 15:48
- Location: Invercargill / Dunedin / Queenstown
- Has thanked: 0
- Been thanked: 0
Re: Big Fat High to round to round out May
Yes exactly. Washing will dry more quickly on a windy warm day than a still warm day too.gllitz wrote:So a question, then (I'm not stirring, here, I *am* actually curious)...Would the above, then, explain why washing tends to dry faster on warm + windy dry days as opposed to cold + windy dry days? Or maybe not...?southernthrash wrote:The two main requirements for evaporation are heating and mixing. Mixing being the wind, so yes, but accompanied by lower amounts of solar radiation (less energy), although this no longer relates to frosts... Diffusion is, again, a minor effect.