TimS
  • TimS
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29 June 2022 08:41:35

Originally Posted by: Lionel Hutz 


According to one of the Italian papers today, five Italian cities managed record June temperatures. Florence was the highest at 40.2, followed by Viterbo at 39.8 and Rome at 39. 



Worth noting that these records have been broken (and a string of them yesterday including Rome equalling its all time high) with an upper air pattern that ended up much less intense than was modelled when I started the thread. The models downgraded the heat by 2-3C at least as pressure built over Eastern Europe.

This was a downgraded heatwave, that still managed to break records. 


Look out for Spain in about 10 days’ time.


Brockley, South East London 30m asl
TimS
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30 June 2022 13:04:01

I've renamed this thread so we can continue with the next one, which is looking particularly juicy for Spain and Portugal. 


Andalusia, Estremadura and Alentejo are going to absolutely bake from mid next week onwards, possibly for as long as a week. Bear in mind places like Seville, Cordoba, Caceres, Beja and so on are the hottest places in European summer anyway. Look at these 850hPa anomalies:


 


And look at these max temperatures:



Folks, that's a 48C. And if you look on the slighter higher res meteologix for the same run there's a little 49C shown in Alentejo.


Current GFS shows 44C+ maxes in the region running from next Thursday to the following Tuesday, including 5 days in a row with somewhere at 46C or more.


I have never seen temperatures like this modelled on a European map before even for one day. They also show minima of 29C deep, deep inland in Estremadura next Saturday night.


At least it won't be muggy. Here are the 2m dewpoints for that hot Saturday:



You heard it here first.


 


Brockley, South East London 30m asl
Hungry Tiger
30 June 2022 14:35:22

Originally Posted by: TimS 


I've renamed this thread so we can continue with the next one, which is looking particularly juicy for Spain and Portugal. 


Andalusia, Estremadura and Alentejo are going to absolutely bake from mid next week onwards, possibly for as long as a week. Bear in mind places like Seville, Cordoba, Caceres, Beja and so on are the hottest places in European summer anyway. Look at these 850hPa anomalies:


 


And look at these max temperatures:



Folks, that's a 48C. And if you look on the slighter higher res meteologix for the same run there's a little 49C shown in Alentejo.


Current GFS shows 44C+ maxes in the region running from next Thursday to the following Tuesday, including 5 days in a row with somewhere at 46C or more.


I have never seen temperatures like this modelled on a European map before even for one day. They also show minima of 29C deep, deep inland in Estremadura next Saturday night.


At least it won't be muggy. Here are the 2m dewpoints for that hot Saturday:



You heard it here first.


 



If this intense heat takes a hold it will spread to other places and we could tap into this at some point. This is well worth keeping a close eye on.


 


Gavin S. FRmetS.
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South Cambridgeshire. 93 metres or 302.25 feet ASL.


Gusty
30 June 2022 15:34:45

Sevilla 850's...staggering brutal.


Builds from the 5th, peaks around the 9th.


https://www.wetterzentrale.de/en/show_diagrams.php?geoid=31543&model=gfs&var=2&run=6&lid=ENS&bw=1


 


Steve - Folkestone, Kent
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TimS
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30 June 2022 16:53:31
As if on cue the 12z GFS downgrades the peak to a mere 43C.
Brockley, South East London 30m asl
TimS
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01 July 2022 09:33:46

Originally Posted by: TimS 

As if on cue the 12z GFS downgrades the peak to a mere 43C.


But then later runs quickly upgrade again. Notably the absolute highest temperatures are forecast for Southern Portugal rather than Spain.


Latest max temps across Iberia from next Wed onwards per 00z GFS:


Wed: 41C


Thurs: 43C


Fri: 46C


Sat: 47C (48C on the high res)


Sun: 46C


Mon: 45C


Tues: 44C


Wed: 41C


 


Brockley, South East London 30m asl
Perthite1
01 July 2022 10:34:22

After 14 days of over 40c here last Summer, hopefully this gets downgraded for Spain and Portugal. It’s not just the heat, but in combination with such low dew points the fire danger is catastrophic. The wind speeds are not expected to be too strong which is a good thing. 

TimS
  • TimS
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01 July 2022 11:18:39

Originally Posted by: Perthite1 


After 14 days of over 40c here last Summer, hopefully this gets downgraded for Spain and Portugal. It’s not just the heat, but in combination with such low dew points the fire danger is catastrophic. The wind speeds are not expected to be too strong which is a good thing. 



It's a good point considering the location of the heat. Much of Andalucia especially around the usual hotspots like Seville and Cordoba there isn't much to burn as it's all deforested / semi-desert except in some of the mountains, but in Southern Portugal there are vast Eucalyptus plantations and some pretty large areas of forest and bush.


Brockley, South East London 30m asl
TimS
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02 July 2022 11:02:42

Originally Posted by: TimS 


 


But then later runs quickly upgrade again. Notably the absolute highest temperatures are forecast for Southern Portugal rather than Spain.


Latest max temps across Iberia from next Wed onwards per 00z GFS:


Wed: 41C


Thurs: 43C


Fri: 46C


Sat: 47C (48C on the high res)


Sun: 46C


Mon: 45C


Tues: 44C


Wed: 41C


 



Latest - starts a little later and goes on longer:


Thurs: 43


Fri: 44


Sat: 45


Sun: 45


Mon: 47


Tues: 46


Wed: 47


Thurs: 47


Fri: 46


And it goes on. Core of the heat definitely in Portugal.


 


Brockley, South East London 30m asl
TimS
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04 July 2022 06:26:04

First 50C on a model run in Europe:



Northern Estremadura. A few 49s around too.


Brockley, South East London 30m asl
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