FI Charts ( T120+ onwards) Summer 2026 **READ MOD NOTE IN FIRST

UKMO day 6

Never seen cape like this over ireland, severe thunderstorms if that were to happen.

ECM 6z continues with hot hot hot potential. Fascinating period of model watching, plumes can be so fickle and end up drifting to our east time and time again. But we are still on track for a whack.

Dew points on Thursday above 20c in parts on the charts.

Irish people often overplay our humidity (not all high relative humidity = humid, notably so when your dealing with sub 20 degree air temperatures and the air doesn't have the same water holding capacity), but dew points over 20c?

That is utterly humid, the type of chewy soupy oppressive air that wouldn't be out of place somewhere tropical.

AIGFS 120hrs nearly the entire island under 20c 850pHa. 22c close to the east coast.

During the heat in May I found it was the best at predicting the max temperature.

I don't usually find it exaggerates too much, this evenings temps for example.

26c both forecasted and recorded. Unless things change it should easily beat their June record of 35.6.c anyway.

Atlantic now spoiling things as soon as Friday, so we essentially extract about 1 proper hot day from the European heatwave, then back to where we were at the start of June, with summer on hold.

Ohhh what could have been, or what could be if the Atlantic could just F off for more than a few days.

Hi all, thanks for all the info.

Is it currently looking like a breakdown on Friday ish? But that outlook could change in the coming days?

Extremely unstable air aloft over Ireland during the week, hopefully its the heat rather than severe thunderstorms/tornadoes making the headlines by the end of the week !

Looks quite uncomfortable some of the days with such high wet bulb tems. Clammy.

Edit: meant to post in under +120hrs thread...