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UK first ground and air frost watch season 2018-2019


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http://en-gb.topographic-map.com/places/Saint-Harmon-5844176/

Looks to be around 270m asl, that link above is a good site to visualize the land and see where hollows may be.

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I've started this thread a bit earlier than usual, namely due to the forecasted chilly nights expected Friday and Saturday with an outside chance of ground frosts in frost prone spots, who knows Highl

http://www.markvoganweather.com/2017/09/17/visit-to-katesbridge-weather-station-northern-irelands-icebox/

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49 minutes ago, NPUK said:

We had a ground frost this morning, just outside Pocklington. Don't know what temps got down to but there was a pretty good covering on the surrounding fields.

First ground frost here near Malton too, low of 3.2c. Around 3-4 weeks ahead of normal .

Your nearest station to Pock is Yapham which fell to 2c.

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12 hours ago, vizzy2004 said:

First ground frost here near Malton too, low of 3.2c. Around 3-4 weeks ahead of normal .

Your nearest station to Pock is Yapham which fell to 2c.

I'm nearer to Yapham than Pock and just lower down so it's possible that we could have dropped a touch lower then.

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Another low min for September - Tackley must in a frost hollow, to think in some winters, many places struggle to achieve a lower mins. I'm always quite surprised at how low mins get get too at this time of year given the right conditions, you'd think they should conversely be much lower in similiar synoptics in depths of winter - but quite often comparatively speaking not the case.

Little chance of air/ground frost the foreseeable though as we import very humid muggy uppers in a tropical maritime airstreams, might be talking about local high min records next week.

Could be quite a topsy turvy September if we then see an anticylonic spell with further likelihood of frost.

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1 hour ago, Interitus said:

Curious to where that Tackley reading has come from. There is an amateur site in Tackley which recorded 1.6°C https://www.themcintyres.dnsalias.net/weather/tables.html while the official UK min was 1.3°C at South Newington about 8.5 miles away 

 

Yes -2°C for England does sound awfully low or the time of year, more what you'd expect in the Arctic.

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  • 2 weeks later...

Frost watch time over the next 2 nights, could be quite a few first grass frosts/ground frosts of the season at least. Looking further ahead, early October could bring first widespread air frosts.. 

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Looking good for lots of frosts tonight all over. Farnborough 8.3C at 20:00. 4.2C at 21:00.

A few of the usual low-lying northern spots made it last night:

 

Minimum Temperature Last 24h - 09/23/2018 at 21:00 UTC
No. Location Station ID Amount
1 Eskdalemuir (United Kingdom) 03162 -1.7°C
2 Cairngorm (United Kingdom) 03065 -1.3°C
3 Aboyne (United Kingdom) 03080 -1.2°C
4 Strathallan (United Kingdom) 03144 -1.2°C
5 Cairnwell (United Kingdom) 03072 -0.2°C
6 Altnaharra (United Kingdom) 03044 -0.1°C
7 Shap (United Kingdom) 03225 0.3°C
8 Tulloch Bridge (United Kingdom) 03047 0.5°C
9 Bealach Na Ba No2 (United Kingdom) 03039 1°C
10 Redesdale (United Kingdom) 03230 1°C
11 Great Dun Fell (United Kingdom) 03227 1.1°C
12 Spadeadam (United Kingdom) 03224 1.4°C
13 Castlederg (United Kingdom) 03904 1.6°C
14 Charterhall (United Kingdom) 03158 1.6°C
15 Lough Fea (United Kingdom) 03911 1.7°C
Script courtesy of  Michael Holden of Relay Weather. Data courtesy of Ogimet

 

Edited by Aleman
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We had 3.8C at dawn but have a lot of leaf cover in our garden so probably slightly colder nearby. Farnborough only made it to 1.6C but there were quite a few spots nearly there around the UK.  Benson actually made it with -0.6C. Many will have woken up to frosty cars and the odd rooftop. Our neighbours' roof turned a little white for the first time this season but did not last two seconds in this lovely sunshine.

https://www.ogimet.com/cgi-bin/gsynres?lang=en&state=United+K&osum=no&fmt=html&ord=REV&ano=2018&mes=9&day=24&hora=10&ndays=1&Send=send

 

North Atlantic temperatures bode well for more early frosts. When is the last time it got this cold?

ncep_cfsr_globe_t2m_week_anom.png

 

 

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1 hour ago, Aleman said:

North Atlantic temperatures bode well for more early frosts. When is the last time it got this cold?

ncep_cfsr_globe_t2m_week_anom.png

 

2015 SST was colder.

Now -

244908803_2018coldblob.thumb.gif.6aab3948dfb408b4955ae46c28612219.gif

2015 -

1475454735_2015coldblob.thumb.gif.f4754cc8285bd074ca2e8e09d1cb0a41.gif

This was followed by the 3rd warmest November CET, and the warmest December (by a whopping 1.6°C).

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2.9c this morning with a ground frost, our 2nd so far this month.

Quite a contrast to last year when we had our first ground frost on the 29th October!

Potential for another tonight :)

I counted around 7 stations at 0c this morning across North Yorkshire, with only Settle in the Yorkshire Dales reading an air frost.

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8 hours ago, Frost HoIIow said:

Got down to -0.3C here this morning, first air frost of the Autumn.?

Amazing,just over the hill from here but only made 4 deg here!

8 hours ago, Frost HoIIow said:

Got down to -0.3C here this morning, first air frost of the Autumn.?

 

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