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Heavy Weather 2013
17 July 2022 19:02:57

In keeping with a long held tradition a bespoke thread for tomorrows historic heat watch. In keeping with a long held tradition.


Does anyone have hourly observations from 2019 and 2003 that they can post here in preparation.


I suggest we then have a fresh one for Tuesday for record keeping purposes.


Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
Rob K
17 July 2022 19:30:19

Hourly readings from Heathrow on 25 July 2019 (not the record-breaking site but as close as I can get).


 



Decoded synop data. (17:58 mean solar time)
Time interval: 2 days before 2019/07/25 at 18:00 UTC.
























































































































































































































































































































































DateT
(C)
Td
(C)
Hr
%
Tmax
(C)
Tmin
(C)
dddff
kmh
P0
hPa
P sea
hPa
P
Tnd
Prec
(mm)
Inso
D-1
Vis
km
WW
07/25/201918:0034.216.93637.9-----S11.11005.11007.9-0.9Tr/12h---29.0Rain. Daylight. At 07/25/2019 18:00 UTC
07/25/201917:0034.315.633----------SE20.41005.11007.9-1.1-------30.0 
07/25/201916:0034.817.135----------SE20.41005.41008.2-1.3-------29.0 
07/25/201915:0036.715.528----------S20.41005.91008.7-1.1-------30.0 
07/25/201914:0036.717.132----------SSE20.41006.21009.0-1.1-------27.0 
07/25/201913:0037.217.732----------SSE18.51006.71009.4-0.8-------27.0 
07/25/201912:0034.317.838----------SE14.81007.01009.8-0.90.0/6h---27.0 
07/25/201911:0033.717.638----------SSE11.11007.31010.1-1.0-------26.0 
07/25/201910:0033.117.339----------ESE13.01007.41010.2-0.9-------28.0 
07/25/201909:0031.616.941----------SE13.01007.91010.8-0.6-------30.0 
07/25/201908:0028.813.639----------E11.11008.31011.2-0.6-------35.0 
07/25/201907:0026.511.840----------E9.31008.31011.2-0.8-------45.0 
07/25/201906:0024.013.753-----19.7E9.31008.51011.4-0.70.0/24h
0.0/12h
12.240.0 
07/25/201905:0020.815.170----------E7.41008.91011.8-0.8-------30.0 
07/25/201904:0020.315.775----------E11.11009.11012.1-0.8-------35.0 
07/25/201903:0020.214.972----------E7.41009.21012.2-1.1-------35.0 
07/25/201902:0020.113.867----------E3.71009.61012.6-1.3-------45.0 
07/25/201901:0020.214.068----------E5.61010.01012.9-1.4-------45.0 
07/25/201900:0020.612.861----------E3.71010.31013.3-0.80.0/6h---35.0

 


 


Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome
Rob K
17 July 2022 19:31:21

And from Gravesend in 2003:


 


Decoded synop data. (18:01 mean solar time)
Time interval: 2 days before 2003/08/10 at 18:00 UTC.





























































































































































































































































































































































































DateT
(C)
Td
(C)
Hr
%
Tmax
(C)
Tmin
(C)
dddff
kmh
P0
hPa
P sea
hPa
P
Tnd
N
t
N
h
H
Km
Vis
km
WWW1W2
08/10/200317:5029.019.25538.1-----N13.01015.11015.7+0.2662.020.0Overcast. Daylight. At 08/10/2003 17:50 UTC Overcast. Daylight. Before 13 UTC Overcast. Daylight. Before 16 UTC
08/10/200316:5033.015.134----------SSE7.41014.31014.9-0.5---------   
08/10/200315:5036.311.222----------SSW16.71014.81015.4-0.2---------   
08/10/200314:5037.412.122----------S16.71014.91015.5-0.50----18.0Sky clear. Daylight. At 08/10/2003 14:50 UTC Sky clear. Daylight. Before 10 UTC Sky clear. Daylight. Before 13 UTC
08/10/200313:5037.411.922----------SSE14.81014.81015.4---------10.0   
08/10/200312:5037.413.925----------SSE13.01015.01015.6-1.1---------   
08/10/200311:5036.313.826----------S13.01015.41016.0-0.7---------   
08/10/200310:5033.115.034----------N5.61015.71016.3---------10.0   
08/10/200309:5031.217.544----------NNE5.61016.11016.7-0.3---------   
08/10/200308:5029.818.450----------E5.61016.11016.7-0.2---------   
08/10/200307:5026.417.960----------E3.71016.21016.8-0.1---------   
08/10/200306:5021.416.373----------CAL0.01016.41017.0+0.5---------   
08/10/200304:5016.413.885----------S5.61016.31016.9+0.1---------   
08/10/200303:5017.613.476----------SSE7.41015.91016.5-0.3---------   
08/10/200302:5017.714.280----------SSE9.31015.91016.5-0.30----24.0Sky clear. Night. At 08/10/2003 02:50 UTC Sky clear. Night. Before 22 UTC Sky clear. Night. Before 01 UTC
08/10/200301:5017.915.284----------SE7.41016.21016.8-0.4---------   
08/10/200300:5018.816.184----------W5.61016.21016.8-0.5---------   
08/09/200323:5019.216.283----------W5.61016.21016.8-0.50----24.0Sky clear. Night. At 08/09/2003 23:50 UTC Sky clear. Daylight. Before 19 UTC Sky clear. Night. Before 22 UTC

 


Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome
scillydave
17 July 2022 20:22:50
So we're looking for, very roughly, temperatures above 32c at 9am as an early indication of the direction of travel.
Currently living at roughly 65m asl North of Cowbridge in the Vale of Glamorgan.

Formerly of, Birdlip, highest village in the Cotswolds and snow heaven in winter; Hawkinge in Kent - roof of the South downs and Isles of Scilly, paradise in the UK.
johncs2016
17 July 2022 20:25:44

Edinburgh Gogarbank on the day that Edinburgh had its hottest day on record:




















































































































































































































































































































































































































































































































Synop decoded. (17:46 mean solar time)
Period: 1 days from 2019/07/25 at 18:00 UTC .
DateTTdhrTmaxT mindddffkmSpeedP0PseaPTndPriceInsoViswww
(C)(C)%(C)(C)/h​​km/hhPahPa_(mm)D-1km
07/25/201918:0023187231.6-----N5.6----999.81006-0.40.0/12h---13 
07/25/2019five pm302055----------I KNOW9.3----999.91006-1-------28 
07/25/201916:00301848----------I KNOW16.7----10001007-1.1-------30 
07/25/201915:00281752----------I KNOW11.1----10001007-1.7-------22 
07/25/201914:00311641----------yes16.737.110011007-1.9-------30 
07/25/201913:00261966----------NNE11.1----10011008-2-------21 
07/25/201912:00271960----------JAN18.5----10021009-1.80.0/6h---40 
07/25/201911:00251762----------AND14.8----10031009-1.5-------35 
07/25/201910:00231873----------NE11.1----10031010-0.9-------35 
07/25/20199:00221771----------NE9.3----10041011-0.6-------35 
07/25/20198:00211675----------AND9.3----10041011-0.3-------35 
07/25/20197:00201679----------AND13----10041011-0.6-------30 
07/25/20196:00171689-----13AND7.4----10041011-0.60.0/12h3.328 
07/25/20195:00151597----------THAT9.3----10051011-0.5-------16 
07/25/20194:00131395----------SSW1.9----10051012-0.1-------10 
07/25/20193:00141393----------THAT3.7----100510120-------16 
07/25/20192:00151489----------THAT9.3----10051012-0.2-------25 
07/25/20191:00181582----------yes9.3----10051012-0.1-------45 
07/25/20190:00161589----------NE3.7----100510120.30.0/6h---35 
07/24/201923:00171483----------AND1.9----100510121.2-------35 
07/24/201922:00171481----------yes5.6----100510121.4-------35 
07/24/20199:00 PM181477----------yes9.3----100510111.4-------35 
07/24/201920:00191369----------SSW9.3----100410111.1-------40 
07/24/201919:00211465----------SSW14.8----100410100.6-------35 

The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.
johncs2016
17 July 2022 20:38:56

According to the above data which I have posted for Edinburgh Gogarbank, it had looked for a while as though we weren't going to get that record. The temperature got to around 27°C at around 12 noon on that day and it then looked as though it was refusing to rise any further than that as it then dropped slightly during the following hour.

However, there was then quite a sharp rise in the temperature at around 2pm on that afternoon up to around 31°C and it looks as though the record was then beaten at some point on either side of that hour. The temperature then dropped back to around 28°C but then went back up again to around 30°C by the end of that afternoon before the 18z SYNOP then confirmed that the record had been beaten as shown in the TMax column in the above table.

Given the up and down nature of the temperature at that time of the day, it would have been interesting to see what might have happened had it not been for those brief periods when the temperature kept dropping back, and that gives me a lot of belief that this was a record which is more than capable of being beaten.


Before then, I didn't actually know anything about SYNOP codes and therefore, couldn't understand why the actual record was higher than the highest temperature which was being recorded on that day.


Luckily though, a few very good members of this forum then taught me all about that and it was thanks the help which I got back then, that I was then able to use the various tools which I use on here today for all of my various reports on here.


 


The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.
Zubzero
17 July 2022 22:23:10
Here's one for Cambridge 25th of July 2019.

https://www.cl.cam.ac.uk/research/dtg/weather/daily-text.cgi?2019-07-25 

I remember the temp drop in the early evening from a shower it felt lovely



Rob K
17 July 2022 22:26:31
Looks like the unforecast rain and cloud could put a dampener on tomorrow’s high temperatures.
Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome
The Beast from the East
18 July 2022 01:22:17

Looks like the unforecast rain and cloud could put a dampener on tomorrow’s high temperatures.

Originally Posted by: Rob K 


Not sure. you can feel the hot air now after the shower we had at about 11.40


 


"We have some alternative facts for you"
Kelly-Ann Conway - special adviser to the President
james
18 July 2022 04:56:55

Here's how the record was set at Cambridge Botanic Garden:


 



 


Details here:


 


https://www.metoffice.gov.uk/binaries/content/assets/metofficegovuk/pdf/research/library-and-archive/library/publications/historical-weather-factsheets/cambridgebgrecordtemperature25july2019.pdf

Polar Low
18 July 2022 05:15:24

Just started to turn 17c at 0600 rising steadily 


Midnight 18.2


Clear sunny


https://cm2weather.co.uk/gauges


Thanks all for the data very interesting!


 

hobensotwo
18 July 2022 05:31:53
21.8 and rising fast already. The overnight low was 21.0.
Polar Low
18 July 2022 05:33:39

Guernsey Airport currently  leads 23c


https://www.netweather.tv/live-weather/top-20/maxt

Tim A
18 July 2022 05:34:53
Layer of high level cloud here this morning. Low 19.9c, currently 20.4c , looks to be thinning from the west thankfully looking at radar.
Tim
NW Leeds
187m asl

 My PWS 
LeedsLad123
18 July 2022 05:42:11

Layer of high level cloud here this morning. Low 19.9c, currently 20.4c , looks to be thinning from the west thankfully looking at radar.

Originally Posted by: Tim A 


Even with that high cloud the temperature has already shot up quite a bit. 21c here 


Whitkirk, Leeds - 85m ASL.
Heavy Weather 2013
18 July 2022 05:51:29
Good starting Temperatures in some parts. I’d have been happier if we were in the twenties already in the south.
Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
Polar Low
18 July 2022 06:01:43

Good Sat looks clear France Southern England, closing in at 20c at 0700 


https://www.metcheck.com/SEASONAL/thunderstorm_satellite.asp


 

Heavy Weather 2013
18 July 2022 06:02:19


Good Sat looks clear France Southern England, closing in at 20c at 0700 


https://www.metcheck.com/SEASONAL/thunderstorm_satellite.asp


 


Originally Posted by: Polar Low 


Excellent. No illegal clouds today please.


Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
Col
  • Col
  • Advanced Member
18 July 2022 06:08:53

Layer of high level cloud here this morning. Low 19.9c, currently 20.4c , looks to be thinning from the west thankfully looking at radar.

Originally Posted by: Tim A 


Said clearance is pretty much overhead for me though it's not sunny as the sun is obviously in the east. However it is moving pretty slowly so you will have to be a little patient over there in Leeds.


Col
Bolton, Lancashire
160m asl
Snow videos:
http://www.youtube.com/channel/UC3QvmL4UWBmHFMKWiwYm_gg
Polar Low
18 July 2022 06:11:00

Alderney current leader at 0700 24c


 


 

Heavy Weather 2013
18 July 2022 06:13:59
Does anyone have the link to reported temperatures please.
Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
hobensotwo
18 July 2022 06:14:34
23c now.. Not a breath of wind absolutely still.. Today is gonna be like a furnace.
Jiries
18 July 2022 06:14:57


 


Said clearance is pretty much overhead for me though it's not sunny as the sun is obviously in the east. However it is moving pretty slowly so you will have to be a little patient over there in Leeds.


Originally Posted by: Col 


Quite cloudy in the midlands here so temps are suppressing now and no rise.

Rob K
18 July 2022 06:20:33

Good starting Temperatures in some parts. I’d have been happier if we were in the twenties already in the south.

Originally Posted by: Heavy Weather 2013 


This isn’t really going to be a south event. I think the Midlands and even further north will be beating the usual suspects today. Almost completely clear blue skies here FWIW. 


Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome
Retron
18 July 2022 06:24:55

One hell of an increase in temperatures here. It may have been unexpectedly cool here, but I think that was due to a very shallow inversion under dead calm conditions. As soon as even the lightest of puffs of wind comes along... bam, it mixes out.



Unsurprisingly my station is now only a degree or two below neighbouring ones.


Leysdown, north Kent

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