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File image of a dirty window. Shutterstock

Were your windows coated in dust after the storm? Two experts explain the phenomenon

Now that the dust is finally settling following Storm Éowyn – what is the dust?

IF YOU’RE CURRENTLY admiring a new coating of grime on your windows, or questioning the powder substance covering your car and windowsills, fear not – it’s an expected occurrence after storms like Éowyn.

Several concerned Irish people took to social media this afternoon to question the powder deposits left on various surfaces outside following Storm Éowyn, which brought high-speed winds and destruction to many parts of the country.

Coastal areas were hit particularly hard, with gusts reaching speeds of up to 183km/h.

These high-speed winds deposited a off-coloured powder, which has covered a number of outdoor surfaces.

The ‘powder’ is nothing to worry about – it’s a a simple concoction of salt, dust and dirt, experts say.

Peter Thorne, a professor of Physical Geography (Climate Science) at Maynooth University, said there’s no need for alarm regarding the ‘dusting’, explaining that a major storm (such as Éowyn) will usually cause this to happen.

“The dust and salt were picked up from the sea and local area by the strong winds, and were deposited by the winds onto a range of vertical surfaces, including windows,” Prof. Thorne said.

“The reason it is so visible on windows is simply down to the fact that windows are clear,” he added.

Thorne added that the record waves along the west coast caused by the stormy conditions meant that the wind “was able to pick up large amounts of fine matter and carry it as far as the midlands”.

Met Éireann explained that while it may not be the most common occurrence in Ireland, the public has had previous experience with the weather phenomenon before, following deposits of dust carried by strong winds from the Sahara Desert.

90335792_90335792 A car in Dublin covered in Sahara dust following strong winds over North Africa in 2014. Sasko Lazarov / Rolling News Sasko Lazarov / Rolling News / Rolling News

The national forecaster reiterated that the “dusting” was “nothing to panic about”.

“We would be more familiar with Saharan dust,” Met Éireann meteorologist Rebecca Cantwell explained.

“People might recognise the red coating that appears on our cars that we sometimes wake up to in the mornings, and that’s brought in by strong southerly wind from the Sahara, after dust and sand is brought up.

“In this case, westerly winds from Storm Éowyn picked up salt and dust deposits from coastal areas with tall waves, and pushed it all inland”.

For those still in doubt, take a page out of Carlow Weather’s book and give it a taste:

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    Mute larry smith
    Favourite larry smith
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    Jan 21st 2025, 9:26 PM

    “Dad what’s that flower called ?
    “Well son that’s a rhododendron”
    How do you spell that ?
    On second thought, i think that’s a rose

    60
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    Mute P. V. Aglue
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    Jan 21st 2025, 10:11 PM

    @larry smith: there’s a richie Kavanagh song to be written about that plant,if he’s still alive

    9
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    Mute Ronan Mc
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    Jan 21st 2025, 9:35 PM

    Great series. People have gone mad for Cherry Laurel too and it’s choking out woods. They create dead zones. Birds don’t land on them or use them for cover and there’s nothing to forage on underneath.
    Ever one off house in my area has it planted at their boundary in the last 10 years. Should be illegal.

    49
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    Mute Freda Peeple
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    Jan 21st 2025, 9:45 PM

    @Ronan Mc: People should plant native hedges, cherry laurels contain cyanide so the birds are probably wise

    30
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    Mute smatrix mantra
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    Jan 21st 2025, 11:33 PM

    @Ronan Mc: fwiw All our forest plantations are dead inside. With or without cherry Laurel. Forests are so densely planted not a bird inside. Anyway, cherry Laurel not banned by NPWS but probably should, yes.

    14
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    Mute Bryan
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    Jan 21st 2025, 9:25 PM

    Isnt Michael Healy Rae being made the super junior minister of rhododendrons?

    36
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    Mute Ann Kennan
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    Jan 21st 2025, 9:56 PM

    I saw a garden centre advertise Rhododendron for sale on their social media. I called them out and it was removed, but I am sure it happens elsewhere.

    27
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    Mute Brian Hunt
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    Jan 21st 2025, 9:59 PM

    @Ann Kennan: Apparently there are 200 types of Rhododendrons, and the only pest is Rhododendron Ponticum!

    27
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    Mute Oh Mammy
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    Jan 22nd 2025, 6:39 AM

    @Ann Kennan: good woman yourself Karen. You should be in government

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    Mute Donna Fallon
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    Jan 21st 2025, 10:26 PM

    Does anyone on here ever regret opening up this site/ app as it’s getting so depressing?? But yet we somehow always seem to back for more.

    14
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    Mute Chop Chop
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    Jan 21st 2025, 10:39 PM

    @Donna Fallon: Personally, I’m just here for Larry’s dad jokes.

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    Mute Larry Betts
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    Jan 21st 2025, 10:42 PM

    @Donna Fallon: Only you,my dear. Only you. But it’s nice to chat and mingle in a cesspit of filth every now and again. Nothing brings us back down to earth again as quickly as a malfunctioning Temu parachute.

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    Mute Larry Betts
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    Jan 21st 2025, 10:45 PM

    @Chop Chop: For that comment,I sentence you to ten Hail Mary’s and two Our Father’s. It used to be one Our Father. Times have changed.

    2
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    Mute Donna Fallon
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    Jan 21st 2025, 10:49 PM

    @Larry Betts: Only youuu can make the darkness bright…

    4
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    Mute Donna Fallon
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    Jan 21st 2025, 10:50 PM

    @Chop Chop: We all need a bit of that… lol!!

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    Mute Larry Betts
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    Jan 21st 2025, 11:17 PM

    @Donna Fallon: Awww thanks Madonna.

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    Mute Paul Gorry
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    Jan 22nd 2025, 12:38 AM

    @Dave f Doe: Pri ck.

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    Mute Bren
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    Jan 22nd 2025, 3:06 PM

    @Donna Fallon: but you seem to be commenting on every article possible so I don’t think you’re sick of it to be honest possibly addicted to commenting

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    Mute Chop Chop
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    Jan 21st 2025, 9:48 PM

    Bindweed is a divil in my garden. The flowers are pretty nice though and at least it dies back in winter.

    12
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    Mute Brian Hunt
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    Jan 21st 2025, 9:56 PM

    @Chop Chop: I saw bindweed in Italy a few years back, the flowers weren’t white but a kind of electric blue, beautiful!

    7
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    Mute Larry Betts
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    Jan 21st 2025, 9:59 PM

    @Chop Chop: If you have bindweed in your garden,Chop Chop,do you know what you should do? You should chop and chop,Chop Chop,and don’t stop chopping til the chopper chops the lot.

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    Mute Brian Hunt
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    Jan 21st 2025, 10:00 PM

    @Larry Betts: On a roll Larry!

    7
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    Mute Chop Chop
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    Jan 21st 2025, 10:20 PM

    @Larry Betts: You’ve got the makings of a Dr. Seuss book there!

    5
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    Mute Chop Chop
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    Jan 21st 2025, 10:22 PM

    @Brian Hunt: Maybe I’ll get some seeds… it would like nice and also give the journal something to write about next year :-)

    4
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    Mute Larry Betts
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    Jan 21st 2025, 10:23 PM

    @Brian Hunt: The Greens tried to outlaw bindweed imported from Italy a few years ago. They said the electric blue flowers were bad for the environment. They preferred solar powered bindweed that gave off a yellow hue,or wind powered white bindweed.

    3
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    Mute Larry Betts
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    Jan 21st 2025, 10:30 PM

    @Chop Chop: Don’t plant them until after The Journal poll. “Have you ever planted an invasive species? Leave your answers in the comments below”

    5
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    Mute Peter Conry
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    Jan 21st 2025, 11:21 PM

    Maybe instead of poisoning the Japanese Knotweed, we could do like the Japanese and eat it – ideally as young sprouts (before it flowers). It tastes a slight bit rhubarby but when cooked is more like asparagus. It’s rich in plant bioactives like resveratrol, flavonoids and some of the beneficial antioxidant chemicals from green tea. It could and should be kept in check in this way rather than our current approach. The poisons don’t work. Eating does. Obviously not an option right now as they’re laden with weedkiller.

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    Mute Chop Chop
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    Jan 21st 2025, 11:37 PM

    @Peter Conry: Shit. I just ate some before I’d finished reading your comment.

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    Mute JoeJoe Kilbride
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    Jan 22nd 2025, 12:41 AM

    @Peter Conry: it’s held in check in Japan by native fungi and insects.

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    Mute Peter Conry
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    Jan 22nd 2025, 2:41 PM

    @JoeJoe Kilbride: yep, they’re important, along with other plants that compete for the same space.

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    Mute Oh Mammy
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    Jan 22nd 2025, 1:30 AM

    Invasive species are indeed a problem……

    9
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    Mute PhiBo
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    Jan 21st 2025, 11:13 PM

    Tipperary. Sure it can’t be that bad if someone’s going to make a few quid then. God help us.

    8
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    Mute Kilian MacRocosm
    Favourite Kilian MacRocosm
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    Jan 21st 2025, 9:36 PM

    We’re having a festival, Its called “Watch Your House Burn to the ground”, sure it’s very destructive and the tickets cost a lot but the flames are so pretty

    10
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    Mute Dean Carroll
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    Jan 22nd 2025, 10:43 AM

    The vee should be turned into a national park. (All mountain ranges IMO) Then let Parks & Wildlife & local volunteers start clearing this invasive species. In years to come the mountains could be purple with native heather.

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    Mute Ned
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    Jan 21st 2025, 11:42 PM

    Might as well ban everything that grows out there then , next it will be spuds etc

    4
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    Mute Hotirish
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    Jan 21st 2025, 10:13 PM

    I’ve got three beauties in my back garden but they never recreate!

    3
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    Mute Larry Betts
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    Jan 21st 2025, 10:24 PM

    @Hotirish: Nuns,Dougal. They’re called nuns.

    13
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    Mute Nick Bowie
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    Jan 22nd 2025, 9:29 AM

    Laurel also a problem!

    3
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    Mute Polly Barrett
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    Jan 22nd 2025, 7:36 PM

    If it is such a problem why are garden centres allowed to sell it?

    1
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