Turning very warm/hot, heatwave conditions likely; Sunday 24th -->

sryanbruen

Zerbini Blewitt wrote: »

Cheers, thanks for all the answers.

That’s a pity that that met document was taken down but hopefully it’s not totally gone.

It is interesting that nobody has memory or data of a heatwave in the 1960’s. That’s borderline incredible if it turns out to be true (some of the monkey deities must have been angry about all the free love and LSD in them times )

There’s a lot of agreement so far even about long ago eg. Jul 1955.

I’ll tot up a total & near total over the next few days.

Disappointing that 32.5C wasn’t broken this event but this summer looks like it has plenty of firepower left yet.

The 1960s decade was known for its poor Summers and cold Winters. The "decent" Summers didn't occur 'til the last two of the decade, 1968 and 1969. These Summers for Ireland stand out for how sunny they were, especially 1968 in the northwest. However, they weren't remarkable at all for warmth and 1968 was in fact quite a cool Summer which is strange because usually dry and cool Summers would be rather dull.

I have not looked at 1969 in detail yet bar the fact that it was quite a sunny Summer (with more than 600 hours of sunshine) at Dublin Airport.

There weren't any heatwaves in the 1960s that I know of.

Gaoth Laidir

igCorcaigh wrote: »

Is it caused by warm air rising over land?

It's just the drop in air density due to the daytime heating. Read more here.

Meteorite58

Very uncertain the amount of rain in the South later Sun /Mon. Models seem to be backing away from rainfall with very little amounts been shown at this stage by the ECM and others.

jd

Zerbini Blewitt wrote: »

Cheers, thanks for all the answers.

That’s a pity that that met document was taken down but hopefully it’s not totally gone.

Could be somewhere at
http://archive.met.ie/

Gaoth Laidir

Over the past three days, Shannon has had a total of 11 hourly reports above 30 C! Four on Wednesday, 5 yesterday and 4 today. That's some going.

munsterlegend

Meteorite58 wrote: »

Very uncertain the amount of rain in the South later Sun /Mon. Models seem to be backing away from rainfall with very little amounts been shown at this stage by the ECM and others.

Yep a few hours ago on the Hirlam there seemed a lot more rain forecast but now only very little.

Kermit.de.frog

Next week looks dry throughout now for most of us. All models have pulled back on anything really noteworthy at this stage.

Meteorite58

Not as warm in the S and SW tomorrow being under the influence of more cloud , humidity should be higher there too. Much sunnier in the mid W and midlands where the highest temperatures will likely occur. High 20's again.

Gaoth Laidir

Shannon's taken a large drop of 4.6 degrees in the past hour. Here are the last three days' hourly readings from the Big Four synop hotspots.

munsterlegend

Kermit.de.frog wrote: »

Next week looks dry throughout now for most of us. All models have pulled back on anything really noteworthy at this stage.

And here was I hoping for a night off watering them flowers!

sryanbruen

Gaoth Laidir wrote: »

Shannon's taken a large drop of 4.6 degrees in the past hour. Here are the last three days' hourly readings from the Big Four synop hotspots.

Keep up these awesome graphs and charts, I'm loving them (including the snow depth charts you did for both beasts)!

Mars Bar

I'm feeling a bit more of a chill in it this evening than yesterday evening.

Rougies

Gaoth Laidir wrote: »

Shannon's taken a large drop of 4.6 degrees in the past hour. Here are the last three days' hourly readings from the Big Four synop hotspots.

Have they been the hottest 4 over the 3 days do you know?

Gaoth Laidir

Mars Bar wrote: »

I'm feeling a bit more of a chill in it this evening than yesterday evening.

I'm sitting in my garden right now and I'm actually feeling a bit cold. Nearby Casement's "only" 19.1 C but there is enough of a breeze to take the edge off it.

Gaoth Laidir

Rougies wrote: »

Have they been the hottest 4 over the 3 days do you know?

Of the synops, yes. I don't know about the likes of Athenry, Mt. Dillon, etc. as they don't report synops.

hbhook

I'm hoping all of this heat rewards me with an epic day and night of thunderstorms down the road.

Rougies

Distinctly chilly in the local park walking the dog half an hour ago especially down by the river, but back in the housing estate still feeling warm.

degsie

hbhook wrote: »

I'm hoping all of this heat rewards me with an epic day and night of thunderstorms down the road.

There's always one :rolleyes:

Oscar Bravo

degsie wrote: »

There's always one :rolleyes:

2 actually

Meteorite58

https://twitter.com/simon_sat/status/1012647237934026752

SleetAndSnow

Definitely much colder at the coast. Temps dropped a lot faster here on the south cork coast and the breeze is cold, you’d have to have a jacket. Still was roasting during the day though, slightly cooler then the city.

Calibos

sdanseo wrote: »

Was still 30° at Shannon at 8pm. Most recently 29 degrees at 8.30pm.

pro tip I just discovered - the ° symbol is got by holding ALT and typing 0176. Who knew

Mines bigger than yours!!

Alt and 0186 º°

Oneiric 3

Gaoth Laidir wrote: »

It's just a surface heat low, formed by the heating of the airmass over the land. These are common in the warm season, and Iberia has one most days. If you look at the hourly Met.ie mesoscale charts you can see the low forming hour-by-hour during the morning, peaking by late afternoon, then filling again overnight. At higher levels, however, there is actually a high the whole time. Look at 925, 850, 500 hPa charts, etc.

Thanks. I am aware of local scale heat lows etc, but the low in the chart above is part of a larger trough that ECM has sitting over the greater part the NW Europe region:




The whole set up on the original chart with regards prep potential does not seem right with me.

For what it is worth, here is a chart from July 2014 with a broadly similar surface profile and that the 500 hPa.



Maybe other levels had more 'triggering' aspects to them on this day though..

Oneiric 3

Locally, today was the 3rd day in a row that I recorded a temp of over 30.0 deg.C. Overall, very slightly cooler than yesterday, but only by n'ths.

Rougies

Oneiric 3 wrote: »

The longer term prospects from the ECM is for the weather to become gradually more unsettled from mid-July onwards. There is a popular belief around these parts that we will always be 'punished' for getting weather like this (which is a genuine form punishment as far as I am concerned), and I sincerely hope that this belief holds true.

We're getting rewarded after the extremely cold/snowy/wet spring. We've already taken the punishment (even though lots of us love snow, but mother nature doesn't know that, shhhhh). Let it be a long hot dry summer and if we go over our credit limit we can take punishment in late August in the form of severe thunderstorms.

sryanbruen

Rougies wrote: »

we can take punishment in late August in the form of severe thunderstorms.

Like 1976

Come back 20 degrees! All is forgiven!



:pac:

Comhrá

There's always one

Oscar Bravo wrote: »

2 actually

Make that 3.

Comhrá

Originally Posted by hbhook.

I'm hoping all of this heat rewards me with an epic day and night of thunderstorms down the road.

There's always one

Oscar Bravo wrote: »

2 actually

Make that 3.

Comhra

Comhra wrote: »

Make that 3.

4