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

squarecircles

phenomenal,the midwest on fire. 33 not out of the question later,
i think i may screen print these graphics iv screen grabbed the past few days onto
t shirts and sell them to fellow weather nerds.

[IMG][/img]

DickSwiveller Returns

sryanbruen wrote: »

Cooler, low to mid 20s (high 20s on Saturday for some) compared to mostly mid to high 20s and localised 30s.

Thanks. I don't mind the odd bit of nice weather but I've found the last few days unbearable. Not suited to this kind of heat.

Ms2011

Inviere wrote: »

Disaster of a night trying to sleep, so humid, sticky and warm Fan on constantly through the night but was like having a hairdryer on given how warm the air was!

Put a bowl of ice or a frozen bottle of water in front of the fan to blow out cold air

Golden Horde

Would be interested to know what the expectation is for those thundery showers over the weekend and if they'll reach Kildare.

The roof is off part of my house for building works and I'm worried about heavy rain showers - will tell roofers to cover it up in case.

sryanbruen

28th June 2018 vs 19th July 2006

28th June 2018 data

Station|Maximum temperature|Minimum temperature|Daily mean
Athenry|30.2|12.1|21.2
Ballyhaise|28.8|10.6|19.7
Belmullet|27.2|14.7|21.0
Casement Aerodrome|26.6|13.6|20.1
Claremorris|30.2|12.5|21.4
Cork Airport|25.1|14.8|20.0
Dublin Airport|26.2|9.0|17.6
Finner Camp|28.5|14.4|21.5
Dunsany|27.5|10.9|19.2
Gurteen|29.9|7.8|18.9
Johnstown Castle|23.1|14.8|19.0
Knock Airport|28.9|16.6|22.8
Mace Head|29.2|15.9|22.6
Malin Head|20.0|13.2|16.6
Markree Castle|27.7|9.7|18.7
Moore Park|30.1|9.4|19.8
Mt. Dillon|30.3|8.1|19.2
Mullingar|28.6|9.4|19.0
Newport Furnace|29.8|14.7|22.3
Oak Park|29.8|10.2|20.0
Phoenix Park|27.2|11.3|19.3
Roches Point|23.4|14.5|19.0
Shannon Airport|32.0|12.4|22.2
Sherkin Island|24.0|13.0|18.5
Valentia Observatory|28.4|10.9|19.7
Overall|32.0|7.4|20.0


19th July 2006 data

Station|Maximum temperature|Minimum temperature|Daily mean
Belmullet|29.9|15.3|22.6
Birr|28.2|15.2|21.7
Casement Aerodrome|31.0|15.1|23.1
Claremorris|28.3|13.9|21.1
Clones|28.7|14.9|21.8
Cork Airport|21.4|17.0|19.2
Dublin Airport|26.5|13.6|20.1
Dunsany|27.7|12.3|20.0
Elphin|32.3|14.6|23.5
Kilkenny|28.1|12.9|20.5
Knock Airport|27.5|15.5|21.5
Mace Head|26.9|17.5|22.2
Malin Head|25.9|15.5|20.7
Moore Park|24.2|14.8|19.5
Newport Furnace|27.3|16.4|21.9
Oak Park|29.4|13.0|21.2
Phoenix Park|27.9|13.3|20.6
Rosslare|23.3|15.5|19.4
Shannon Airport|25.9|18.0|22.0
Sherkin Island|22.5|16.7|19.6
Valentia Observatory|26.8|18.4|22.6
Overall|32.3|12.3|21.2


As can be seen by the data given, 19 July 2006 was 1.2c warmer than 28 June 2018. There are two possible reasons for this: 19 July 2006 featured higher minimums generally and there were only 21 stations in the calculation compared to 25 stations for 28 June 2018. Still interesting to see the comparison of two very warm or hot days in Ireland.

Data comes from Met Éireann.

anoble66

Really hoping we do get the showers on Sunday and into next week. I have a lot of grass seed that will fail if this weather continues and no showers.

met.ie 7 day rain forecast showing showers sunday, mon and a few days next week. It will be interesting to see if they happen.

Cork Boy 53

irishrover99 wrote: »

I blame the government and Leo. What are they going to do about this heat.

What does the independent alliance have to say about it ��

Well it`s true that politicians do generate a lot of hot air.

Amirani

sryanbruen wrote: »

28th June 2018 vs 19th July 2006

As can be seen by the data given, 19 July 2006 was 1.2c warmer than 28 June 2018. There are two possible reasons for this: 19 July 2006 featured higher minimums generally and there were only 21 stations in the calculation compared to 25 stations for 28 June 2018. Still interesting to see the comparison of two very warm or hot days in Ireland.

Data comes from Met Éireann.

The average and median high is higher on 28 June 2018 though.

June 2018 Average Maximum = 27.7
July 2016 Average Maximum = 27.1

June 2018 Median Maximum = 28.5
July 2016 Median Maximum = 27.5

Really depends which way you want to look at these things. As you say, 2016 was higher in terms of average daily mean. There's no way to really blanket say that one day was hotter or colder than the other.

newholland mad

Ultimate Seduction wrote: »

Wife picked the perfect time to go in to labour. No air conditioning in the maternity hospital wtf

My wife was in the coombe in July 2006 it was 30 degrees and the heating was stuck on in her ward .The next day I solved it with a vice grips the valve was stuck. I was a hero with patients and nurses. You'd wonder what sort of mutts were the maintenance men.

amandstu

What is the larger picture on such a long hot dry spell (we had one a couple of weeks back that was only broken by a heavy downfall of rain before this longer repetition)

Not talking about global warming , just wondering has there been some temporary rebalancing of the weather systems in the N hemisphere for the time being?

What are the technical details on this long stretch of sunny weather around us?

pauldry

Apart from technical details what I notice most Summers is whatever pattern the weather is in at the middle to end of June it doesnt much change for the rest of the season.

Lots of years its rain and were stuck with rain

Some years showers and wer stuck with them

One year it was cool and temperature of 22c on July 1st was as high as Sligo got.....beaten at least 20 times already this Summer

With Climate change I think our weather will always be variable. Theres no doubt about that.

But what I am noticing is whatever weather we do get it is getting more extreme isnt it?

Like Snow ...Emma
Wind ....Ophelia
This ....Boiling

Should we name heatwaves too?

How about Heatwave Kermit? Since when he set up this thread I laughed but Ive nearly finished all my humble pie now.

squarecircles

amazing year

last summer,torrential rains that flooded donegal thanks to an ex hurricane
continental style thunderstorms as the atlantic air clashed with heat,a car smashing through someones kitchen in a mud slide,

hurricane ophelia... THIS IS ...HAPPENING!

frontal snow event in mid december



numerous wind storms,one particulary violent,with explosive cyclogenesis

severe cold and blizzards storm Emma,frequent frosts/ice days

delayed spring

3 week fine spell with sporadic burst of high summer temperatures in late may

2 orange alert thunderstorm warning in the space of a week.

heatwave in june,near drought conditions,

prospects of continuing heat

Slashermcguirk

amandstu wrote: »

What is the larger picture on such a long hot dry spell (we had one a couple of weeks back that was only broken by  a heavy downfall of rain  before this longer repetition)

Not talking about global warming , just wondering has there been some temporary rebalancing  of the weather systems  in the N hemisphere  for the time being?

What are the technical details on this long stretch of sunny weather around us?

Not sure to be honest. What I find so unusual about all this is people seem to be focusing on this as like a warm spell that has only happened for a week or so. Since the very start of May, I think I can recall seeing rain maybe 2-3 times in total in almost 8-9 weeks in Dublin. Even at that I think one of those showers was heavy but nothing major.
The Met eireann monthly data for Dublin backs this up (I cant speak for the rest of Ireland) with approx. 23mm of rain from 1st May - 28th June in Dublin. That must be close to a record even for Dublin, which is statistically the driest place in Ireland based on 30 year averages. that works out at 0.3mm per day over a 2 month period!

sryanbruen

giveitholly wrote: »

Sryanbruen do you think we will get these showers from the south on Sunday and if we do how far north will they come

Sunday is only two days away and there still seems to be uncertainty and or disagreement with the low of unstable air over Biscay.

Met Éireann seems keen on showers pushing up from the south on Sunday afternoon affecting mainly Munster with the heaviest in Kerry, Cork and Limerick of up to 5-8mm perhaps if the showers are prolonged. These showers go in a southeast to northwest trajectory so barely reaching Kildare and Wicklow with some very little amounts here but nothing elsewhere. The issue with showers is that they fall and pass through quite quickly so it's quite problematic to tell where exactly and when showers will occur. After Sunday on Met Éireann's rainfall forecast, the showers continue over the southern part of Ireland (Munster mainly) but not as heavy as Sunday's. I wouldn't take that for certain at all though.

In terms of the models, GFS wants to bring well scattered showers into the south later Sunday and perhaps a more organised blob of showery rain into the east (Wicklow, Dublin, Louth, Meath) Sunday night into Monday morning. Met Éireann does not show this so I don't really know. Looking at the isobars on the ECM, it looks like the ECM keeps the showers mainly over Munster close to the Biscay low.

For a time, ECM wants to push the low back southwards mid-week (Tuesday, Wednesday) and build the high pressure back over us until Thursday when the low pushes back up and brings more showers. However, as Donegal Storm showed, the ECM builds the Azores High well and truly over us again afterwards.

It's still all to play for I'm afraid. The favoured position though for the showers is Munster counties and some of south Leinster. Small chance of convection taking place early in the evening on Sunday around Cork, Limerick and Tipperary going by the latest GFS run.

amandstu wrote: »

What is the larger picture on such a long hot dry spell (we had one a couple of weeks back that was only broken by a heavy downfall of rain before this longer repetition)

Not talking about global warming , just wondering has there been some temporary rebalancing of the weather systems in the N hemisphere for the time being?

What are the technical details on this long stretch of sunny weather around us?

Very related to this post.

sryanbruen wrote: »

The reason for the jet stream slowing down is courtesy of a few things. Firstly, the Sudden Stratospheric Warming event that occurred in February can be to blame because it gave away to record breaking zonal wind reversions and this can be shown by the Scandinavian block retrogressing to Greenland and then North America giving away to record breaking March/April snow and cold to them. The zonal winds did not reassert themselves and intensify to back above average before the time of year (mid-April) when they start to reverse anyway and become weak. The zonal winds could not do much thanks to the time of year and going back to the SSW event in February which caused a very early severe (more like May to June standards) reversion in our normal zonal winds.

The reversion in zonal winds has also led to an unusual Atlantic SST profile since February with a cold pool of SSTs in the shape of a horseshoe. These cold SSTs include out to the west of Ireland, south of Greenland, west of Iberia and through the tropics. Why is this? When the high pressure is over Scandinavia and sending easterlies to us, the Atlantic circulation causes the winds to come down from the Arctic in the Atlantic which is why this has happened. These cold SSTs in the way they're aligned in the North Atlantic promote blocking over us and or Scandinavia along with the fact that solar activity is at very low levels, solar activity could be promoting the blocking too (just happens we're on the right side of the block this time).

As we get into Autumn, the Polar Vortex will start to reintensify and this will continue into Winter. It's a matter of will the cold SSTs continue to be able to fend off the normal zonal flow and blocking will still occur over Scandinavia or us? I have a feeling that Autumn might be much more unsettled but I also have a hunch that the pattern will end up in our favour for cold for Winter helped by solar activity.

MJohnston

Gaoth Laidir wrote: »

On the question of the heating of Shannon carpark, darker surfaces are worse than lighter ones and will heat up to much higher temperatures (50-60 °C, as mentioned). This certainly does heat the air above it very efficiently. That's how the air warms up in general anyway. The ground absorbs solar shortwave radiation, warming up and emitting longwave (IR), which heats the air. Even a station surrounded by grass still warms up due to the heating of the ground, it's just that with a tarmac surface, that heating is much greater.

This problem is so great that Los Angeles is painting its roads a white colour to try to combat daytime urban heat islands.

https://www.cbsnews.com/news/los-angeles-is-painting-some-of-its-streets-white-and-the-reasons-why-are-pretty-cool/

Tomorrow when you're walking by parked cars, touch the bonnets and see how much hotter the dark ones are than the light ones.

I suppose the real question for comparing Shannon with Shannon is whether the environs of the station have changed much over the last X years? I mean, we can still try and compare it with itself rather than use it as a yardstick for the entire country.

Rebelbrowser

Gurteen at 28c on 12z reports

Station Temperature (ºC) Weather Wind Speed (Kts) Wind Gust (Kts) Wind Direction Humidity (%) Rainfall (mm) Pressure (hPa)
Athenry 27 Fair 5 NE 51 0 1023
Ballyhaise 25 Fair 5 E 42 0 1024
Belmullet 21 Fair 10 NE 69 0 1024
Casement 24 Sun/Clear sky 9 E 31 0 1024
Claremorris 26 - 2 SW 46 0 1023
Cork 23 Sun/Clear sky 10 E 59 0 1022
Dublin 23 Sun/Clear sky 11 E 31 0 1024
Dunsany 24 - 10 E 26 0 1024
Finner 25 Fair 4 SE 52 0 1024
Gurteen 28 Fair 7 E 35 0 1023
Johnstown Castle 20 Fair 6 E 67 0 1023
Knock 25 Sun/Clear sky 3 NE 50 0 1023
Mace Head 23 Fair 5 S 60 0 1023
Malin Head 13 Fog thinning 3 N 98 0 1026
Markree Castle 26 - - - 53 0 1024
Moore Park 26 - 6 SE 51 0 1022
Mt Dillon 26 - 4 NE 52 0 1023
Mullingar 26 Fair 7 E 34 0 1023
Newport Mayo 26 - 3 N 49 0 1023
Oak Park 27 Fair 6 E 36 0 1023
Phoenix Park 23 - - - 30 0 1024
Roche's Point 22 Fair 11 E 64 0 1023
Shannon 26 Sun/Clear sky 5 S 49 0 1022
Sherkin Island 22 Fair 11 E 65 0 1022
Valentia 23 Fair 6 W 61 0 1022

sryanbruen

Slashermcguirk wrote: »

Not sure to be honest. What I find so unusual about all this is people seem to be focusing on this as like a warm spell that has only happened for a week or so. Since the very start of May, I think I can recall seeing rain maybe 2-3 times in total in almost 8-9 weeks in Dublin. Even at that I think one of those showers was heavy but nothing major.
The Met eireann monthly data for Dublin backs this up (I cant speak for the rest of Ireland) with approx. 23mm of rain from 1st May - 28th June in Dublin. That must be close to a record even for Dublin, which is statistically the driest place in Ireland based on 30 year averages. that works out at 0.3mm per day over a 2 month period!

I'll look at the driest May/June combinations if you want.

Meanwhile, I've done a post on the driest Junes on record at Cork Airport and Dublin Airport:

sryanbruen wrote: »

I thought it'd be fun here to look at the driest Junes on record at Cork Airport and Dublin Airport because both stations' totals for June 2018 are running well below average with 8.3 and 4.5mm respectively.

Dublin Airport's driest Junes on record (records go back to 1941). So June 2018 currently ranks as the second driest June on record here.

Rank|Year|Rainfall total (mm)
1.|1942|4.0
2.|1967|11.4
3.|1995|11.6
4.|2015|14.1
5.|1975|14.9
6.|1973|20.2
7.|1996|20.8
8.|1994|21.2
9.|1949|22.3
10.|1976|22.5


Cork Airport's driest Junes on record (records go back to 1962). June 2018 currently ranks as the driest June on record here, following its second wettest April on record.

Rank|Year|Rainfall total (mm)
1.|2006|14.6
2.|1975|20.2
3.|1974/1995|21.3
4.|1973|25.1
5.|1992|26.4
6.|1972|34.2
7.|1999|35.4
8.|1967|35.9
9.|1977|36.4
10.|1994|45.9


Data comes from Met Éireann.

CeilingFly

Harry Palmr wrote: »

The fan trick as mentioned by Cherryghost does seem to work not sure how much energy I'm consuming though

Fans use very little electricity - its the cooling/heating of aircon/heaters that use.

Most fans (even powerful domestic ones) will be under 100w - so 10 hours will be one unit of electricity.

The more standard domestic fans are about 50w - so just 20c a full 24 hour day in electricity cost.


For those who want to know what cherryghost said, it was that when its cooler at night, (prob after 9pm) point the fans TOWARDS the open window and it will suck warm air from the house and push it out.

If you have an extractor fan in the kitchen / bathrooms, put these on too.

SleetAndSnow

26 degrees in Cork currently and still rising. Sunbathing again, may aswell get a base colour before Spain! No more blinding milky white!

_Dara_

According to Met Éireann’s 12pm report, temperatures seem down on yesterday’s everywhere.

Cantona's Collars

Johnstown Castle getting a sea breeze and 20c. Just up the road in Enniscorthy it's hit 27c. It was 25c at 10.30am. This is the hottest it's been this early in the day so far in this hot spell.

mickmackey1

Rebelbrowser wrote: »

Malin Head 13

Poor b***tards

crossmolinalad

CeilingFly wrote: »

Fans use very little electricity - its the cooling/heating of aircon/heaters that use.

Most fans (even powerful domestic ones) will be under 100w - so 10 hours will be one unit of electricity.

The more standard domestic fans are about 50w - so just 20c a full 24 hour day in electricity cost.


For those who want to know what cherryghost said, it was that when its cooler at night, (prob after 9pm) point the fans TOWARDS the open window and it will suck warm air from the house and push it out.

If you have an extractor fan in the kitchen / bathrooms, put these on too.

Cheaper is Just open al your windows and doors after 9pm and a draft will blow out the heat , that's how I doing it here
left the windows open for the whole night

Cork Boy 53

mickmackey1 wrote: »

Poor b***tards

A paradise though for anyone who doesn`t like the heat.

MJohnston

crossmolinalad wrote: »

Cheaper is Just open al your windows and doors after 9pm and a draft will blow out the heat , that's how I doing it here
left the windows open for the whole night

The last few nights have been nearly dead calm though, so the natural breeze isn't enough.

MyStubbleItches

Ultimate Seduction wrote: »

Wife picked the perfect time to go in to labour. No air conditioning in the maternity hospital wtf

Bit unfair of her to pick this weather as the time to go into labour. Poor child will have very high expectations of Irish weather!!

Hope all goes well.

CeilingFly

crossmolinalad wrote: »

Cheaper is Just open al your windows and doors after 9pm and a draft will blow out the heat , that's how I doing it here
left the windows open for the whole night

Can take an awful lot longer - fine if you sleep after midnight, but for earlier sleepers and kids, the fan is better as it takes about an hour.

redsteveireland

_Dara_ wrote: »

According to Met Éireann’s 12pm report, temperatures seem down on yesterday’s everywhere.

I've only done Athenry here but looks on par with yesterday.

Gaoth Laidir

Kerry Airport the warmest at the moment on 29 degrees.

Gaoth Laidir

Hourly synops for the past 3 days for the Big Four