20.4mm

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In stark contrast to the rest of the year, it has been a dry month here so far with a cumulative total of 7.3 mm to date.

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Last 24 hours: 27.2 mm
This month: 53.1 mm
This year: 370.2 mm

The deluge continues 😞

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BH weekend especially the Monday looks like a washout for the south 

Just passed an Inch since midnight, 10mm added from yesterday so 35mm so far. Its been raining on and off for nearly 24 hours 🌧☂️☔️

Pretty much non-stop rain now for the last 24 hours. It was heaviest yesterday evening and overnight but is still going and I notice that nearby Rothamsted Park has now recorded 62mm since 13.00 yesterday!

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29mm so far here from this rain event.  Brings my May total to 64mm, already well past the average here of 42mm.

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57mm from all this. Yesterday's thunderstorm accounting for half that. 98.6mm for the month. Very wet indeed.

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The latest rainfall data for Edinburgh Gogarbank is as follows:

Data For Recent Days

24 total up to 10AM BST (09:00 UTC yesterday morning: 1.0 mm
Total since 10AM BST (09:00 UTC yesterday morning: 35.8 mm (as at 07:00 AM BST (06:00 UTC) this morning on Thursday
23 May 2024)

This makes yesterday our wettest day of this year so far.

Monthly Data

Total for this month so far: 53.6 mm (106.8% of 1991-2020 May average)
Number of rain days during this month so far: 6 (55.8% of 1991-2020 May average)
Number of dry days during this month so far: 12

This means that more rain has now fallen during this month than the 1991-2020 May average and so regardless of what happens between now
and the end of this month, this month will now go down as being wetter than average in terms of the actual rainfall amounts.

Just a few days ago, that was looking very unlikely to be the case but this now means that all three months during this spring have been wetter than average in terms of the actual rainfall amounts.

In addition to that, only at least another 5 official rain days now need to be recorded between now and the end of this month in order for this month to go down as being wetter than average in terms of the number of rain days.

Seasonal Data

Total for this spring so far: 266.0 mm (179.1% of 1991-2020 spring average)
Number of rain days during this spring so far: 32 (105.8% of 1991-2020 spring average)
Number of dry days during this spring so far: 33

This means that more official rain days have now been recorded during this spring than the 1991-2020 spring average and so regardless of what happens between now and the end of this month, this spring will now go down as being wetter than average in terms of the number of rain days.

Annual Data

Total for this year so far: 392.2 mm (50.0% of 1991-2020 annual average)
Number of rain days during this year so far: 59 (42.9% of 1991-2020 annual average)
Number of dry days during this year so far: 50

Note

This data has been obtained from https://www.ogimet.com  in raw BUFR format, and then converted into a more readable form
by my own python script.
 

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40mm yesterday brings the total to 120mm for the month so far. Very wet for May. 

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SEPA is showing 54.8 mm for Swanston (last 36 hours but nearly all since lunchtime yesterday, and we know SEPA totals underreport)

Bush not far away is showing 73.8mm for the same timespan

My kitchen roof knows about it. What are the magic words to actually get a roofer to turn up when they promise 😢

Still exactly halfway through the average for the year, nice

For Edinburgh Gogarbank, the data from SEPA shows a total of just 49.2 mm for this month, 230.4 mm for this spring and 352.2 mm for this year. That amounts to a discrepancy of 4.4 mm for this month, 35.6 mm for this spring and 40.0 mm for this year.

Those are quite big discrepancies, especially for the monthly and annual data, and that makes me pleased that I moved away from using the SEPA data for these reports some time ago, and switched to just using the raw BUFR data for that to keep that consistent with the data for other aspects of our weather such as the temperature and sunshine totals which I report on various other threads here on a regular basis.

For the record, the SEPA data for the botanic gardens in Edinburgh shows a total of 37.2 mm for this month, 204.0 mm for this spring and 304.2 mm for this year.

The botanic gardens in Edinburgh are slightly drier on average than Edinburgh Gogarbank, but I wouldn't be surprised even with that, if the SEPA data was under-recording that as well. In this case though, I have no other data to go by and so I have no way of knowing how inaccurate that particular data actually is.

Here, you mentioned Jerry's local station at Swanston (he mentioned yesterday in another thread that he had just travelled down to Nottingham) and you also mentioned Bush which is actually a part of Penicuik.

Swanston is a part of the south of Edinburgh whereas Bush as a part of Penicuik is in Midlothian, so both of those locations are in different council areas.

However, these locations are close enough to each other to show just how localised rainfall amounts can be.

Indeed, I have even witnessed that at first hand on a number of occasions both here in NW Edinburgh and at my Mum's house down in Hawick when I have experienced quite a big downpour of rain, only for that to be so localised that absolutely nothing is actually recorded from that in terms of any actual rainfall totals at any of the nearby major stations.
 

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Ah it's Comiston not Swanston on Sepa I'm looking at

Anyways it's up to 65.8 mm now, minus the <1mm of drizzle that happened before lunchtime yesterday and that's 65mm in 24hr

Bush is up to 89.2 with a similar sub-mm deduction for wed morn drizzle

 

I thought as much.

It's normally Jerry who mentions Swanston as that's his local station, but it's always been Comiston which you have referred to although those two stations are very close to each other within the south of Edinburgh and more so compared to either of those two stations in comparison with Bush.

It's looking as though we might get quite a big total for today as well because the rain has got heavier here once again, and is forecast to be on for the rest of the day.

As I write, this has already led to a further 5.8 mm at Edinburgh Gogarbank along with 6.8 mm at the botanic gardens in Edinburgh since 10am BST (09:00 UTC) this morning with probably quite a bit more to come.

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Comiston now up to 75mm since noon yesterday

 

Not surprisingly, it's also just been reported that the Edinburgh City Bypass has been closed due to flooding and that a number of rail services between Scotland and England have been cancelled.

In addition to that, our official Met Office yellow warning which was originally due to expire this evening has now been extended unto 4am BST (03:00 UTC tomorrow morning).

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Up to 59.2mm now after 36.5mm yesterday

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124mm and another very wet month here. The bulk of it has fallen on two very wet days and actually we've also had lots of nice days too so I'm not complaining. 

I'm away but watching! Up to 9am this morning Swanston recorded 64mm which is the wettest day recorded since the station set up in 2014. It's rained all day apparently so tomorrows 9am 48hr total will be impressive!

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Comiston on 100.8 mm for 36 hours so minus wed morns drizzle that's bang on the 100mm since noon yesterday

Never seen the total get that high

 

Wow! Thats incredible!

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The feature that brought this rain - a vigorous low that formed over Central Europe then moved NNW'wards up the UK's East Coast/North Sea before veering more WNW'wards - strokes me as being extremely unusual.

Have I got that right?

If so, can any of our experts explain the mechanisms that created this set-up? (I obviously have zero idea)

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108mm

Pic --> https://ibb.co/gS2Xprx 



Bypass has been flooded and the traffic is backed up through out southern edinburgh

Braidburn is about 3cm off hitting its record high - https://www2.sepa.org.uk/waterlevels/default.aspx?sd=t&lc=14876

https://www.dailyrecord.co.uk/news/scottish-news/flood-chaos-hits-edinburgh-areas-32880570 


Still raining

I've just read this  report from a local newspaper about the Water of Leith (a river which has its source in the Pentland Hills and which then flows through the centre of Edinburgh to Leith before flowing into the Firth of Forth at the old Leith Docks) which has now burst its banks close to the city centre here in Edinburgh.

The last time I can remember that happening was away back in the autumn of the year 2000 when this same river burst its banks in the SW of Edinburgh causing Murrayfield Stadium (which is famous as being the home of Scottish rugby, and which is situated right next to this river) to be flooded out.

That shows just how remarkable this event has been.

As I write, a total of 27.8 mm of rain has now fallen at Edinburgh Gogarbank since 10am BST (09:00 UTC) this morning and as it's still raining even now, today is now looking set to take over from yesterday as our wettest day of the day of the year so.

That would also be very remarkable because in itself it's not very often that this happens on two or more successive back to back days, especially when the total to beat for that is already at a very high level. 

It's therefore clear that the Met Office have badly underestimated the impacts of this particular event in this part of the world and how long it was last for so rather than the yellow warning which we're still under for that, I reckon that this probably merited at the very least, an amber warning instead.

EDIT:

Here  is another report on this same event from another Scottish newspaper.
 

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BBC News - Drivers trapped for hours in Edinburgh flooding
https://www.bbc.com/news/articles/ckrr9949epeo 

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