Intense rain and lightning despite temperatures climbing to 17 degrees
Along Ireland's southeastern counties, an autumn storm arrived this week carrying a quiet paradox: the same system that brought lightning, flooding rains, and Status Orange warnings also held temperatures at a mild 17 degrees Celsius — warmth more befitting early September than late October. Met Éireann's alerts stretched across Waterford, Wexford, Wicklow, Kilkenny, and beyond, reminding communities that nature's disruptions do not always arrive in the forms we expect. The week ahead offers brief respite before further rain returns, leaving the southeast to reckon with a weather pattern that is at once familiar in its danger and strange in its gentleness.
- Status Orange warnings — Ireland's second-highest alert level — are active across multiple southeastern counties, signalling a genuine risk of localised flooding and lightning strikes through Thursday.
- The storm's oddest quality is its warmth: temperatures reaching 17°C during severe thunderstorms create an unsettling contradiction that catches both forecasters and residents off guard.
- Communities from Munster to Leinster are navigating embedded thunderstorms, heavy downpours, gusty easterly winds, and the possibility of hail through Wednesday night and into Thursday morning.
- A brief window of drier conditions is expected to emerge from the south on Thursday, but heavy rain is forecast to return by late afternoon, extending disruption well into the weekend.
- By Saturday and Sunday, the system begins to fragment — yet wet weather persists, leaving little true relief for affected counties before the working week resumes.
Ireland's national weather service issued its most serious storm alerts on Wednesday as heavy rain and thunderstorms swept the southeast — yet the forecast carried a striking contradiction: even as lightning threatened and flooding loomed, temperatures would climb to an unusually mild 17 degrees Celsius.
Status Orange Rain warnings covered Waterford, Wexford, and Wicklow through midnight Thursday, while the same high-level alert applied to Kilkenny, Limerick, and Tipperary for thunderstorms until Wednesday evening. A wider Status Yellow Thunderstorm warning stretched across much of Munster, Leinster, and parts of Connacht through Saturday. Across the country's eastern and southern reaches, people braced for embedded thunderstorms, intense lightning, heavy downpours, and significant disruption — all of it arriving in air that felt far too warm for late October.
The sharpest threat fell on Wednesday evening and Thursday morning, with intense showers hammering north Leinster and east Ulster, thunderstorms embedded in the rain bands, and hail a possibility. Despite the severity, temperatures held between 12 and 17 degrees throughout.
A brief reprieve was forecast for Thursday, with drier skies developing in the south before heavy rain returned by late afternoon. Thursday night would turn wet across most of the country, with only much of Ulster escaping the worst. Friday would bring further heavy spells, and while Saturday offered some brighter intervals, rain was expected to spread northward overnight. Sunday looked wet again across most areas.
What made the week's forecast most remarkable was not its intensity but its warmth. The mild air mass driving the system kept temperatures well above seasonal norms even as thunderstorms and flooding threatened — an atypical autumn pattern that would test infrastructure and communities alike through the week's end.
Ireland's weather service issued its most serious storm alerts on Wednesday as heavy rain and thunderstorms swept across the southeast, yet the forecast carried an odd contradiction: even as lightning crackled overhead and flooding threatened, temperatures would climb to a mild 17 degrees Celsius.
Met Eireann placed Status Orange Rain warnings across Waterford, Wexford, and Wicklow, with the alert set to remain in effect until midnight Thursday. The same level of warning—the second-highest on Ireland's weather alert scale—covered Kilkenny, Limerick, Tipperary, and Waterford for thunderstorms, expected to persist until 9 p.m. Wednesday. A broader Status Yellow Thunderstorm warning extended across Munster, Leinster, Cavan, Leitrim, and Roscommon through Saturday afternoon. The combination meant that across much of the country's eastern and southern reaches, people were bracing for embedded thunderstorms with intense lightning, heavy downpours capable of triggering localized flooding, and significant disruption to daily life.
The immediate threat centered on Wednesday evening and Thursday morning. Intense showers were forecast to hammer the north of Leinster and east Ulster, with thunderstorms embedded within the rain bands and hail a possibility. As evening fell, further waves of thundery rain would push northward from the south, bringing fresh lightning strikes and gusty easterly winds. Conditions would remain breezy and blustery, with fresh to strong gusts expected. Despite the severity, temperatures would hold between 12 and 17 degrees—unusually warm for late October in Ireland.
By Thursday morning, the worst of the overnight rain would begin to clear from the south, leaving largely dry and partly cloudy skies in southern counties, though a few showers would linger along the coast. The respite would be brief. Heavy rain would return to the south late in the afternoon and evening, with moderate southeast winds strengthening to fresh gusts in the southwest. Temperatures would climb again to between 15 and 17 degrees. Thursday night would turn wet across much of the country, with outbreaks of rain and the possibility of heavy falls, though much of Ulster would escape the worst. Overnight lows would dip only to between 11 and 13 degrees.
Friday would bring a mostly cloudy day with spells of rain turning heavy at times, with temperatures between 14 and 16 degrees. Rain would continue in Connacht and Ulster Friday night, though other areas would dry out and clear. By Saturday, the system would begin to break apart. Northwestern areas would see rain gradually clear, and most of the country would experience dry and bright spells, though showers would develop in the south later in the afternoon before rain spread northward overnight. Highs would reach 14 to 17 degrees. Sunday was shaping up to be wet again, with rain expected across most places and temperatures between 14 and 16 degrees.
The unusual warmth persisting through the severe weather was the forecast's most striking feature. Even as thunderstorms threatened flooding and lightning strikes posed danger, the air mass driving the system kept temperatures well above what October typically delivers. This combination—intense precipitation and electrical activity paired with mild conditions—created an atypical autumn pattern that would test both the infrastructure and the patience of communities across the southeast through the week's end.
Notable Quotes
Intense showery rain will continue to affect north of Leinster and east Ulster with embedded thunderstorms, leading to localised flooding and a chance of hail— Met Eireann forecast
The Hearth Conversation Another angle on the story
Why does a Status Orange warning exist if temperatures stay so mild? Doesn't that seem contradictory?
The warnings aren't about temperature—they're about what the rain and lightning will do. Seventeen degrees doesn't stop a thunderstorm from dumping water faster than drains can handle it. The mildness is almost beside the point.
So the warmth is just... coincidental to the danger?
Not quite coincidental. The same weather system bringing the rain is also keeping the air warm. It's the structure of the storm itself that matters for flooding and lightning risk. Warmth doesn't make those things safer.
What does a Status Orange actually mean for someone living in Waterford?
It means take it seriously. Don't drive through flooded roads. Stay away from exposed areas during the lightning. It's not a suggestion—it's the second-highest alert level the service issues.
And by Thursday it clears up?
Not entirely. The south gets a break Thursday morning, but heavy rain comes back in the afternoon. It's not until Saturday that you really see improvement, and even then showers return by evening.
So this is a multi-day event, not a single storm.
Exactly. It's a system moving through, and different parts of the country get hit at different times. The southeast bears the brunt first, but the rain keeps cycling back through the weekend.