Superstition and St Swithin's Day

explorersweb.com/discovery-of-jet-streams/

For those nerds who don't do normal things 😂

It's due to rain here again tomorrow and Thursday.

School holidays!

Wow! What a clever lot GNers are. Thanks everyone
It's stopped raining and it is lovely and sunny here now.But there is a big black cloud in the South east!!!

Thank you Foxygloves . Every day is a school day on GN.

If you’re more sensible and do normal things, just ignore it 🙂

No, I'm not, I've downloaded it, thank you Jaxjacky!

It is fascinating to see how country lore is so often borne out in our modern scientific age!

It really is, Foxygloves, thank you for that information.

Did we know about the jetstream years ago? I don't remember it being mentioned in weather forecasts years ago.
And I certainly heard a lot of weather forecasts, shipping forecasts and much discussion about the weather from DF!

Lovely today, the washing dried outside and I enjoyed the sunshine in the garden!

However, there has been no need to do any watering.
Is there still a hosepipe ban in the South-East?

If you are a weather geek, like me, there is an global interactive jet-stream map here.

www.netweather.tv/charts-and-data/jetstream

If you’re more sensible and do normal things, just ignore it 🙂

I can’t remember when we last had a day when it didn’t rain, though (hushed tones) it’s rumoured that tomorrow may be dry. The garden is running amok! (But I don’t like it hot either, impossible to satisfy!)
I’m seriously impressed by Foxy’s knowledge. It’s fascinating that there is science behind the superstition. You can learn so much here! Thanks Foxy, I must learn that in order to impress people!

That’s brilliant Foxy!
Such wisdom then

Apparently the reason behind it is all to do with the jet stream.
Around the middle of July, the jet stream settles into a pattern which, in the majority of years, holds reasonably steady until the end of August This is the “science” behind the St Swithun’s Day tradition..
When the jet stream lies north of the British Isles then continental high pressure is able to move in, (maybe last summer?) but when it lies across or south of the British Isles, we experience Arctic air and Atlantic weather as has happened this summer with scorching temperatures south of the Jet Stream.
The jet stream is a fast-moving flow of air in the atmosphere which largely dictates the weather in the UK.
If we get stuck with continental high pressure then the weather will be sunny and warm, while Arctic or Atlantic weather systems will bring us wind and rain.
It is fascinating to see how country lore is so often borne out in our modern scientific age!

No rain today (yet, but forecast for later) and none at all yesterday, so not quite the 40 days of rain, but boy, it sure feels like it with all we have had 😂.

Rain pretty much every day here in Derby. I can’t actually remember a day when it hasn’t rained in about three weeks.
Either showers or torrential.
Thunderstorms too

Lovely sunny day here in the South

So far seems like rain every other day, sunny/cloudy and just pleasantly warm in between.

Much rain in South Wales