Watch out overnight, the stars come out to play

otorongo
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Re: Watch out overnight

Post by otorongo » Tue Mar 18, 2014 10:04 am

Looking cold Sat-Tue with frost possible in the SE excepting the coast and London.


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Adam D
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Re: Watch out overnight

Post by Adam D » Tue Mar 18, 2014 1:16 pm

Yorkshire Kris wrote:
cordyman wrote:my bamboos are going crazy, new culms everywhere, was snapping a load off yesterday which were too close to the wall :cry:

The Fargesias that I planted last year are also shooting like crazy.
No movement on any of my Fargesia yet, and it is normally my rufa or scabrida that start first.


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Yorkshire Kris
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Re: Watch out overnight

Post by Yorkshire Kris » Tue Mar 18, 2014 6:25 pm

Adam D wrote:
Yorkshire Kris wrote:
cordyman wrote:my bamboos are going crazy, new culms everywhere, was snapping a load off yesterday which were too close to the wall :cry:

The Fargesias that I planted last year are also shooting like crazy.
No movement on any of my Fargesia yet, and it is normally my rufa or scabrida that start first.

That's surprising. Mine poked up in the first week of March, if not before.


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stephenprudence
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Re: Watch out overnight

Post by stephenprudence » Tue Mar 18, 2014 7:31 pm

otorongo wrote:Looking cold Sat-Tue with frost possible in the SE excepting the coast and London.
Only the southeast? Probably worst in the west, as usual in these type of frosts.
Heswall, Wirral, UK
USDA equivalent average temperature zone: 9a/RHS zone 3
AHS Heat Zone: 1
Last 5 winter minimums:
2007: -0.1C, 2008: -4.2C, 2009: -5.7C, 2010: -10.5 (record), 2011: -4.9C, 2012: -5.3, 2013: -4.5C (so far)


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Re: Watch out overnight

Post by Nigel » Tue Mar 18, 2014 9:53 pm

stephenprudence wrote:
otorongo wrote:Looking cold Sat-Tue with frost possible in the SE excepting the coast and London.
Only the southeast? Probably worst in the west, as usual in these type of frosts.
You need clear skies and either easterlies or north easterlies for it to be worst in the west.
Hardypalms is now open http://www.hardy-palms.co.uk Discounts for HTUK members on request.


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stephenprudence
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Re: Watch out overnight

Post by stephenprudence » Tue Mar 18, 2014 9:59 pm

Any combination which results in high pressure often results in west having a harder frost in Winter/Spring due to the shelter afforded by the Welsh Mountains and Pennines respectively. Frost hollows not withstanding of course.

It takes a particular scenario for southern/southeastern areas to get colder than western areas in a stagnant high pressure set up, and it's usually light NW airflows.

Fortunately for the last 20 years, most scenarios have been westerly/southwesterly so western areas have had it cosy.

The frosts next week don't look too bad though, just a little chilly by day.
Heswall, Wirral, UK
USDA equivalent average temperature zone: 9a/RHS zone 3
AHS Heat Zone: 1
Last 5 winter minimums:
2007: -0.1C, 2008: -4.2C, 2009: -5.7C, 2010: -10.5 (record), 2011: -4.9C, 2012: -5.3, 2013: -4.5C (so far)


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cordyman
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Re: Watch out overnight

Post by cordyman » Tue Mar 18, 2014 10:13 pm

The Cosy West icon_salut :lol:


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Re: Watch out overnight

Post by Nigel » Thu Mar 20, 2014 5:28 pm

The west always gets the worst frosts with easterly or north easterly setups as air travelling from that direction cools as it travels over land, and by the time the air arrives in the west its at its coldest.
When air travels from south or west directions it arrives here after crossing the sea and is warmer. In that scenario north and south east is always colder .
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otorongo
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Re: Watch out overnight

Post by otorongo » Thu Mar 20, 2014 5:38 pm

Nigel wrote:The west always gets the worst frosts with easterly or north easterly setups as air travelling from that direction cools as it travels over land, and by the time the air arrives in the west its at its coldest.
When air travels from south or west directions it arrives here after crossing the sea and is warmer. In that scenario north and south east is always colder .
But the westerlies are milder than the easterlies, so they're not a problem here icon_thumleft


otorongo
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Re: Watch out overnight

Post by otorongo » Fri Mar 21, 2014 11:29 am

Sunday night looking scary, it would be very unfortunate to have a frost now after a completely frost-free winter. A frost, even a mild one (say -0.3C) can cause a lot of damage to the leaves and rollers of cannas, alocasias etc., perhaps even nanas. And it may kill off the premature spring growth on deciduous things, e.g. kiwi and grapevines. It won't help the brugmansias wake up either. Get all your fleece out!


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stephenprudence
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Re: Watch out overnight

Post by stephenprudence » Fri Mar 21, 2014 7:38 pm

Yes models are showing the potential for -6 or -7C in frost hollows on Sunday night into Monday, and -3C to -5C widespread.. if that occurs it'll be a shock, but it's really too soon to tell, and it could be that it turns out much less frosty than the models are making out.
Heswall, Wirral, UK
USDA equivalent average temperature zone: 9a/RHS zone 3
AHS Heat Zone: 1
Last 5 winter minimums:
2007: -0.1C, 2008: -4.2C, 2009: -5.7C, 2010: -10.5 (record), 2011: -4.9C, 2012: -5.3, 2013: -4.5C (so far)


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cordyman
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Re: Watch out overnight

Post by cordyman » Fri Mar 21, 2014 8:21 pm

stephenprudence wrote:Yes models are showing the potential for -6 or -7C in frost hollows on Sunday night into Monday, and -3C to -5C widespread.. if that occurs it'll be a shock, but it's really too soon to tell, and it could be that it turns out much less frosty than the models are making out.
Stephen any tips for manc, which nights should I chuck on some fleece?


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stephenprudence
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Re: Watch out overnight

Post by stephenprudence » Fri Mar 21, 2014 8:46 pm

cordyman wrote:
stephenprudence wrote:Yes models are showing the potential for -6 or -7C in frost hollows on Sunday night into Monday, and -3C to -5C widespread.. if that occurs it'll be a shock, but it's really too soon to tell, and it could be that it turns out much less frosty than the models are making out.
Stephen any tips for manc, which nights should I chuck on some fleece?
Sunday to Monday seems to be the big one, but most days next week will have frost of some description, it'll probably be mostly light though apart from a few days. The only issue, is daytime highs won't recover very far, probably not reaching 10C outside of London?
Heswall, Wirral, UK
USDA equivalent average temperature zone: 9a/RHS zone 3
AHS Heat Zone: 1
Last 5 winter minimums:
2007: -0.1C, 2008: -4.2C, 2009: -5.7C, 2010: -10.5 (record), 2011: -4.9C, 2012: -5.3, 2013: -4.5C (so far)


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Dave Brown
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Re: Watch out overnight, the stars come out to play

Post by Dave Brown » Sat Mar 22, 2014 10:10 am

I haven't been reading this as seemed another weather blog talking about temps people had had, I had assumed all the forecasting had stopped.
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cordyman
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Re: Watch out overnight

Post by cordyman » Sat Mar 22, 2014 7:12 pm

stephenprudence wrote:
cordyman wrote:
stephenprudence wrote:Yes models are showing the potential for -6 or -7C in frost hollows on Sunday night into Monday, and -3C to -5C widespread.. if that occurs it'll be a shock, but it's really too soon to tell, and it could be that it turns out much less frosty than the models are making out.
Stephen any tips for manc, which nights should I chuck on some fleece?
Sunday to Monday seems to be the big one, but most days next week will have frost of some description, it'll probably be mostly light though apart from a few days. The only issue, is daytime highs won't recover very far, probably not reaching 10C outside of London?

I've chucked a couple of fleeces on the echium and recovering Phoenix canariensis_CIDP icon_thumright


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