#thundersnow — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #thundersnow, aggregated by home.social.
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#ThunderSnow is coming to #MadisonWI
Edit: I guess it's #ThunderFreezingRain or #ThunderSleet, but that doesn't have quite the same ring to it.
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Swansea escapes Storm Goretti snow – but Wales still hit by thundersnow, travel chaos and power cuts
While South West Wales’ main urban centres saw rain instead of the heavy snow forecast, conditions elsewhere deteriorated sharply, with parts of Pembrokeshire even experiencing rare thundersnow as schools shut, rail lines suspended, mountain roads closed and hundreds of homes left without power.
Mountain routes shut as blizzards hit higher ground
The Bwlch mountain road (A4107) was closed at 7pm on Thursday after conditions became unsafe. The joint decision by Neath Port Talbot, Bridgend and Rhondda Cynon Taf councils followed reports of drifting snow and falling temperatures. The route reopened shortly after 8am today.
Pembrokeshire saw some of the worst conditions, with heavy snow, sleet and strong winds creating hazardous driving on higher ground. The B4329 between Haverfordwest and Cardigan, which crosses the Preseli Hills, remained closed for long periods as blizzards hit the route.
Issues were also reported on the B4313 between Fishguard and Narberth, where drifting snow made conditions treacherous across the northern foothills.
Further south, the A478 from Clunderwen to Cardigan saw significant snow in places, with drivers warned to avoid higher ground as accumulations built up.
Council teams worked through the night to clear fallen trees, deal with surface water flooding and keep primary routes open.
Thundersnow caught on camera in Pembrokeshire
A dramatic burst of thundersnow was captured in Pembrokeshire overnight, with lightning illuminating heavy snowfall as Storm Goretti swept across the county.
Local resident Harvey Harbour filmed the moment and shared it on X, showing bright flashes lighting up the sky as snow fell across the area.
You can watch the video here:
Thundersnow!⚡❄️
— Harvey Harber (@HarberHarv7128) January 8, 2026
Pembrokeshire
Never experienced anything like this…😰#uksnow #walesnow
#thundersnow #lightning#pembrokeshire #snow pic.twitter.com/OXONFBBzFMWhat is thundersnow?
Thundersnow is a rare weather phenomenon where a thunderstorm produces snow instead of rain.
It happens when a strong, unstable weather system forms above very cold air at ground level. The storm still generates lightning and thunder, but the precipitation falls as snow.
The lightning often appears brighter because it reflects off the snowflakes, while the thunder sounds quieter because the snow absorbs the sound.
Thundersnow can bring sudden heavy downpours of snow, reduced visibility and rapidly worsening road conditions.
Rail disruption continues across Wales
Transport for Wales services remain heavily affected, with suspensions and reduced timetables on several lines following snow, ice and fallen trees.
Routes impacted include:
- Craven Arms to Swansea (Heart of Wales Line)
- West of Carmarthen
- Maesteg to Ebbw
- Wrexham to Bidston
- Llandudno Junction to Blaenau Ffestiniog
CrossCountry services between Cardiff and Birmingham are not running, and passengers are being urged to check before travelling.
Your earlier Swansea Bay News reporting highlighted “do not travel” warnings issued yesterday as rail operators shut lines ahead of the storm.
Schools shut and power cuts reported
Across Wales, at least 150 schools are closed today, with Powys, Blaenau Gwent and Wrexham among the worst affected.
Around 600 homes were without power this morning, with further outages reported in north and mid Wales. Pembrokeshire also saw power cuts around Clunderwen and Bridell, alongside burst water mains in Haverfordwest.
Emergency services across Ceredigion and Powys reported “numerous incidents” overnight, with police urging people to avoid all but essential travel.
Swansea spared – but warnings remain in force
Despite fears of thundersnow and blizzard conditions reaching Swansea Bay, the city avoided the worst of the storm, with rain and sleet falling instead of snow.
However, Amber and Yellow warnings for snow, rain and wind remain in place across much of Wales, and forecasters say conditions may continue to change through the day.
Bridgend Council said all routes in the county borough remain open after crews dealt with fallen trees and blocked drains overnight.
What happens next
The Met Office says Storm Goretti remains a “multi‑hazard event”, with snow, strong winds and heavy rain still expected to bring disruption in parts of Wales.
Gusts of up to 70mph are forecast along the south coast, while higher ground in mid and north Wales may see further snow and ice as temperatures fluctuate.
Swansea Bay News will continue to update readers as the situation develops.
Related stories from Swansea Bay News
Storm Goretti: ‘Do not travel’ warning as rail lines shut and Wales braces for blizzard conditions
Rail operators issued severe travel warnings as Storm Goretti brought widespread disruption across Wales.Storm Goretti: Amber and Yellow warnings split South West Wales as Met Office updates forecast
#AmberWeatherWarning #blizzard #BwlchMountain #featured #heavyRain #lightning #MetOffice #Pembrokeshire #PembrokeshireCountyCouncil #snow #StormGoretti #StrongWind #Swansea #SwanseaCouncil #thundersnow #walesnow #YellowWeatherWarning
Updated Met Office alerts warned of snow, rain and strong winds across the region. -
#KnowledgeBit: #Thundersnow, also known as a winter thunderstorm or a thundersnowstorm, is a kind of thunderstorm with snow falling as the primary #Precipitation instead of rain.
It is considered a rare and unusual phenomenon. In addition to snow, graupel or hail may fall as well.
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2am Thunder Snow!
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Now brainstorming: one Christmas in the Shenandoah brings the blizzard of a lifetime for my character Georgia...and the love of a lifetime?
Read more at my #blog: https://www.adamasnemesis.com/2023/09/05/a-christmas-blizzard-romance-in-the-shenandoah/
This post's featured image is my own from a December 8, 2018 storm in Asheville.
#weather #blizzard #snowstorm #meteorology #history #weatherhistory #worldbuilding #alternatehistory #story #writer #writing #author #romance #romancestory #lovestory #thundersnow #noreaster #hurricane #superstorm #storm
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Het komt niet vaak voor, maar in Lelystad net sneeuw met onweer. #Thundersnow
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RT @brown_wenden
Sneeuw en onweer ❣️
#Lelystad #sneeuw #onweer #bliksem #januari #bijnaweekend #proost
https://twitter.com/brown_wenden/status/1616154172969345024 -
Oh hell ya tea is on its friggin #ThunderSnow out there eww
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Thundersnow (Storm 🌪️)
Thundersnow, also known as a winter thunderstorm or a thundersnow storm, is a thunderstorm in which snow falls as the primary precipitation instead of rain. It is considered a rare phenomenon. It typically falls in regions of strong upward motion within the cold sector of an extratropical cyclone. Thermodynamically, it is not different from any other type of thunderstorm, but the top of the...
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There was thunder and lighting in Toronto tonight which doesn’t normally happen in February.
It took me a moment to figure out what on Earth was going on.
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It was not technically a blizzard, but it was a mess for many days. Many calls for people with 4WD vehicles to transport medical people to and from hospitals.
Lightning during thundersnow is bizarre.
Interestingly, they are saying that the models today would have been a lot closer to what happened.
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#KnowledgeBit: #Thundersnow, also known as a winter thunderstorm or a thundersnowstorm, is a kind of thunderstorm with snow falling as the primary #Precipitation instead of rain.
It is considered a rare and unusual phenomenon. In addition to snow, graupel or hail may fall as well.
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CW: US Weather
Currently experiencing #thundersnow
Awesome.
#nova #manassas -
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Winter's first big swipe
Thundersnow after midnight
Snowy morning glaze#Haiku #OneHaikuADay #WritersCollective #writingcommunity #BackToHaiku #Akron #Ohio #USA #December #Winter #Ice #Snow #Frost #Icy #Cold #Thunder #Thundersnow #Snowy
December 5, 2024
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Thundersnow (Storm 🌪️)
Thundersnow, also known as a winter thunderstorm or a thundersnow storm, is a thunderstorm in which snow falls as the primary precipitation instead of rain. It is considered a rare phenomenon. It typically falls in regions of strong upward motion within the cold sector of an extratropical cyclone. Thermodynamically, it is not different from any other type of thunderstorm, but the top of the...
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Two feet of thundersnow is cool to watch.
Driving days later, not so cool.
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Thundersnow (Storm 🌪️)
Thundersnow, also known as a winter thunderstorm or a thundersnow storm, is a thunderstorm in which snow falls as the primary precipitation instead of rain. It is considered a rare phenomenon. It typically falls in regions of strong upward motion within the cold sector of an extratropical cyclone. Thermodynamically, it is not different from any other type of thunderstorm, but the top of the...
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Thundersnow! (sound on)⚡ Mostly graupel but some snow and hail mixed in an hour ago in Denver #COwx #thunderSnow #FediWx
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I was pretty sure there was more moisture than the models thought. There was thundersnow yesterday to my south. Even though I did not hear any thunder, it dumped more snow than expected.
If you get #ThunderSnow, it will be dumping on you.
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Worldbuilding and plotting for the perfect storm has taken some fun and winding turns, which I'm now delighted to share with you.
Read more at my #blog: https://www.adamasnemesis.com/2023/09/15/christmas-blizzard-more-brainstorming/
This post's featured image is "The Blizzard" by Joseph Farquharson.
#weather #blizzard #snowstorm #meteorology #history #weatherhistory #worldbuilding #alternatehistory #story #writer #writing #author #thundersnow #noreaster #hurricane #superstorm #storm #scifi #sciencefiction
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Now brainstorming: a perfect storm on the East Coast, and a Christmas of unprecedented extreme winter weather.
Read more at my #blog: https://www.adamasnemesis.com/2023/09/10/the-ultimate-storm/
This post's featured image is Józef Chełmoński's "Cross in a Blizzard".
#weather #blizzard #snowstorm #meteorology #history #weatherhistory #worldbuilding #alternatehistory #story #writer #writing #author #thundersnow #noreaster #hurricane #superstorm #storm #tornado #scifi #sciencefiction #stormchasing
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#Sunrise in Les 3 Elephants, #Kochi to keep the #Thundersnow people warm 🌞
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Interesting #weather in south central #Nebraska in the Grand Island-York area:
“Thundersnow, thundersleet, thunder-freezing rain. You name it, we’ve probably had it in the area circled in blue. Expect a transition to mostly #snow from west to east over next few hours. Areas along/W of Hwy 281 are already snow, heavy at times.”
Post by NWS Hastings, Nebraska
#NEwx #thundersnow #thundersleet -
Interesting #weather in south central #Nebraska in the Grand Island-York area:
“Thundersnow, thundersleet, thunder-freezing rain. You name it, we’ve probably had it in the area circled in blue. Expect a transition to mostly #snow from west to east over next few hours. Areas along/W of Hwy 281 are already snow, heavy at times.”
Post by NWS Hastings, Nebraska
#NEwx #thundersnow #thundersleet -
Interesting #weather in south central #Nebraska in the Grand Island-York area:
“Thundersnow, thundersleet, thunder-freezing rain. You name it, we’ve probably had it in the area circled in blue. Expect a transition to mostly #snow from west to east over next few hours. Areas along/W of Hwy 281 are already snow, heavy at times.”
Post by NWS Hastings, Nebraska
#NEwx #thundersnow #thundersleet -
Interesting #weather in south central #Nebraska in the Grand Island-York area:
“Thundersnow, thundersleet, thunder-freezing rain. You name it, we’ve probably had it in the area circled in blue. Expect a transition to mostly #snow from west to east over next few hours. Areas along/W of Hwy 281 are already snow, heavy at times.”
Post by NWS Hastings, Nebraska
#NEwx #thundersnow #thundersleet -
Interesting #weather in south central #Nebraska in the Grand Island-York area:
“Thundersnow, thundersleet, thunder-freezing rain. You name it, we’ve probably had it in the area circled in blue. Expect a transition to mostly #snow from west to east over next few hours. Areas along/W of Hwy 281 are already snow, heavy at times.”
Post by NWS Hastings, Nebraska
#NEwx #thundersnow #thundersleet
