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A.J

Wales/Cymru Regional Weather Discussion

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Was woken up at about 12:30 by the worst rainstorm I have ever experienced anywhere.  Absolutely torrential, tropical monsoon type rain accompanied by strong wind, thunder and lightning.  It was hitting my south facing windows with the force of a pressure hose and I was worried for my roof.  I then heard the dripping water above the bedroom so I rushed up to the loft to find two leaks 😩.  Managed to put bowls under the leaks but the noise up there was deafening - I’m just glad the roof is still on.  It’s all passed away to the north towards Cardigan and the coast so I’m now recovering with a cup of tea.  As I live on a hill I don’t have to worry about flooding too much but anyone living in a valley by a stream in the path of that storm must have had a worrying time.  Please don’t let this become the new normal.....

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It was a decent week for us taking into account the forecast and warnings though I still think it could have been better for the country as a whole.

The first bit of storms happened in the morning of last Monday where it was very cloudy but there was some rumbles of thunder that got closer from the north. I wen't inside to say to my parents that there was thunder, and then was looking out one of the front upstairs windows with them closed. Then I saw a faint flash in the sky, but 3 to 4 seconds later there was a loud thunder clap which surprised me and caused my heart rate to rise quite high as that meant it was under a mile away '(Later found out by neighbours who saw it that it hit the ground so could have been a positive cloud to ground strike).' I wen't downstairs to say how close it was and my parents were also surprised at it, they said the electric wen't out for a few seconds as the strike happened.

Then there were a few more fairly close strikes before it cleared up, and we then wen't outside to have a look around and could hear really deep rumbles of thunder in the distance to our southeast. There was just rain and distant thunder for a bit, until the afternoon where another load of lightning came in. It was mostly cloud-cloud and intra-cloud, until I heard powerful deep rumbling thunder. I wen't in the landing to look out the window, and could see cloud to ground strikes in the distance to the NorthEast. Then I wen't downstairs to wait it out, and there were a few fairly close but not too loud strikes along with heavy rain until the thundery weather moved away and it brightened up into the late afternoon and evening.

There was nothing then on Tuesday until Wednesday came along, where most of the morning and early afternoon was thunder less, but me and my parents could tell that the sky looked unstable with loads of unstable AltoCumulus clouds and some Cumulus ones.

Here are a load of pictures I took of some storm clouds that then formed to our north on the late afternoon of last Wednesday.

IMG_0109.thumb.JPG.d7f5411a30fab61bdd5ac5eaa3687b14.JPGIMG_0110.thumb.JPG.9e00e688236628041dc84cbefbc697b6.JPGIMG_0111.thumb.JPG.dfc59d0a57d8375c263829a95a6316ba.JPGIMG_0112.thumb.JPG.1803abc3860e1cd077f8ca0c282be7bb.JPGIMG_0113.thumb.JPG.dc38d7c47fb5aefb0bc71cbd7421cd54.JPGIMG_0114.thumb.JPG.6cd026dd4fd2dde4cd5cdf07fa8d4965.JPGIMG_0115.thumb.JPG.5e241c7556eb3f0154bd2686b069a242.JPGIMG_0116.thumb.JPG.94ab13242a8c147642b81fe00a9abc0b.JPGIMG_0117.thumb.JPG.01ef4df3d2bc590cab14e581480a7770.JPG

 

This was the last proper day of thunder that we had here, and there was a bit more around us and in the distance that formed later that evening and into the night that produced some nice displays. One or two storms in particular in the distance to the South and SouthWest were producing a lightning strike rate of 20 to 30 strikes in just 30 seconds!

There was some nice intra cloud lightning a long way in the distance then from the South to the West, which got closer as the night went on, but it started to die down in intensity. It got to a certain distance then quite quickly completely died out, and I have to say that my heart sank when this happened around 2:00am to 3:00am that night.

That was it then for the rest of the early hours, I stayed up for an hour or two just to be cautious, but nothing was happening so I made the decision to go to bed.

We also had some late evening storms sometime in June or July I think that produced some lightning and thunder which was closer but wasn't as frequent, and I wasn't able to report it, as well as some distant loud rumbles of thunder to our Northwest that wasn't forecast or reported by anyone on here a few weeks ago back in July.

 

 

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We had a bit more lightning here on Thursday night along with probably the most heaviest rain I have ever seen.

I could tell something was up that night as there was faint heat lightning going on at 10:00 to 12:00PM. And then later some brighter fairly close sheet lightning occurred with distant rumbles.

There was a lull in the lightning but then a massive downpour happened and by the end of it there was a very large and deep puddle of water outside our back door which thankfully slowly seeped down our soak away to the bottom of the garden. And as the rain moved away an intra-cloud strike occurred as the light was on in the kitchen which I saw light up the ground outside the window above the house which produced a closer rumble of thunder.

Then there were a few more distant strikes around the area with distant rumbles until the lightning and heavy rain moved away leaving the winds to arrive and normal showers. 

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It’s stayed very windy in the west but at least it’s dry now.  Can’t quite believe we’re getting this kind of weather in August but I guess it must have happened before...   Now we’ve got another lovely Atlantic storm to look forward to mid week..     I feel very sorry for all the holiday makers who did the right thing and stayed in the UK - a lot of them have come to Pembrokeshire to be greeted by gales, rain and cloudy skies.  When you consider what a wonderful Spring we had during the period when most of us couldn’t leave the house, it’s a great shame that the good weather couldn’t continue through the peak holiday period.  I’m pretty sure we’ll get lovely weather back again after everyone’s gone back to work and school....

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Lake Vyrnwy near Llanfyllin saw gusts of 75mph, equalling the Welsh August gust record at Milford Haven in August 1979.

Sustanted was 48mph so an all time record,not surprised after what I saw the other day.

 

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3 hours ago, Snowyowl9 said:

Lake Vyrnwy near Llanfyllin saw gusts of 75mph, equalling the Welsh August gust record at Milford Haven in August 1979.

Sustanted was 48mph so an all time record,not surprised after what I saw the other day.

 

Its funny because the highest I got that day was a gust of 40mph, and that was up a large hill in Wales!

Must be sheltered from Westerly winds here at Brongest I guess.

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3 hours ago, wimblettben said:

Its funny because the highest I got that day was a gust of 40mph, and that was up a large hill in Wales!

Must be sheltered from Westerly winds here at Brongest I guess.

Reminded me of a winter storm very unusual to see small boughs blowing sideways halfway across a field counted around 40 twigs and boughs all straddled everywhere,10 broke off one tree,very exposed just there.

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4 pictures I took of some quite large mid level clouds this morning at Brongest.

Altocumulus are not normally as thick as that so it was interesting to see.

IMG_0121.JPG

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September 2020.JPG

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Hello Wales! We are visiting next week and I have just had a look in the model output discussion. Looks like we could be escaping a South East heatwave and enjoying some very pleasant conditions on the welsh coast - here's hoping I haven't jinxed things by posting in here!

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A calm and mostly clear evening here and dry at the minute but we’ve had some hefty showers today.  Looking at the radar we might have some more rain before midnight.  The low pressure system bringing windy and wet weather expected tomorrow looks like it might just move a little further south than forecast and affect Cornwall and Devon more than this area, but we’re still in for some prolonged rain and strong winds later in the day.  At least it’s not a serious named storm - I won’t mind if we don’t see any more of them this Autumn but not placing any bets....

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