Storm Ciara - Strong Winds & Potential Snow **TECHNICAL DISCUSSION**

Mortelaro

Speak Now wrote: »

I was thanking it had ramped up in last half hour but report from 8 to half 8 only showed 47 and 49kts. When was 57kts recorded?

It'll be in the metar as opposed to half hour reports

Gaoth Laidir

Live Mace Head webcam.

http://140.203.204.250:8650

Gaoth Laidir

Mortelaro wrote: »

It'll be in the metar as opposed to half hour reports

Those figures were from the metars.

MJohnston

Gaoth Laidir wrote: »

Live Mace Head webcam.

http://140.203.204.250:8650

Weirdly boards seems to cut off the 8650 port suffix on that URL

Supercell

Squall line passing through just gave a rain rate of 100.2mm/hr, a new station record here, impressive stuff.

Planet X

That was a ripper alright!!!

Meteorite58

AROME is showing winds to have more or less peaked along Atlantic coasts. Showing some of the strongest winds to occur in parts of the Eastern half of the country this morning, more convective in nature perhaps.

HARMONIE nothing of significance in the E.

HIRLAM showing strong winds running along the South this morning for a time.

Gaoth Laidir

MJohnston wrote: »

Weirdly boards seems to cut off the 8650 port suffix on that URL

That's annoying. Went to edit the post and the 8650 is still there. Not the only thing wrong with this site, but that's for another day.

kalkat2002

Happy it was a short hell here in blessington...
Dont remember such intensity ever

Gaoth Laidir

Meteorite58 wrote: »

AROME is showing winds to have more or less peaked along Atlantic coasts. Showing some of the strongest winds to occur in parts of the Eastern half of the country this morning, more convective in nature perhaps.

HARMONIE nothing of significance in the E.

HIRLAM showing strong winds running along the South this morning for a time.

The gradient is slightly less tight than predicted. The 996 and 1024 isobars are still in the correct locations (south Wales and northwest Iberia, respectively) as forecast, but with Ciara's centre 4 hPa higher it's diluted the low-level jet slightly. Still the windiest few minutes in a long time here in Celbridge but I'd imagine still only gusting about 100 km/h.

pad199207

kalkat2002 wrote: »

Happy it was a short hell here in blessington...
Dont remember such intensity ever

Indeed. I’ve never seen such a squall like it before. Trees have come down with it, and gutters came off houses up the road.
Horrific conditions for this part of the country. It’s a pity I didn’t have a trampoline to throw out into it 🙄

Oh and a 295mm/hr rain rate to go with it.

corsav6

Clear skies here outside Newport, Mayo. Max gust recorded on my cheap weather station was 98kph.

SleetAndSnow

Torrential downpour in cork city at the moment, heaviest I've seen in a while! (Was whiteout but rain whiteout? Haha) Strong gusts of wind hitting the house too. Was woken up a few times during the night with them

She's making herself known anyway

Gaoth Laidir

That squall only produced a gust of 48 knots at Casement in the past hour.

Valentia reporting gust 62 kt at 9 am but obviously earlier in that hour as current 10-minute mean is only 27 kt.

PsMETAR VALE 090900Z AUTO 25027G62KT 9000NDV FEW023/// BKN060/// BKN120/// 12/07 0981 MSL RERA=

FastFullBack

SleetAndSnow wrote: »

Torrential downpour in cork city at the moment, heaviest I've seen in a while!

It's was mad. Wildest 5 minutes of rain I've seen in a long while

EDIT: This was it https://twitter.com/Alanpbarry/status/1226433864245170176?s=19

Speak Now

Squall line just reaching Waterford now.

Goldfinch8

Looking at radar and satellite images, I find the clearly defined squall lines a particularly interesting feature of this system. Another incoming one lining up off the west coast now.

Gaoth Laidir

Strictly speaking these are not squall lines in the true sense of the term. It's become common to throw this term around (even Joanna Donnelly last night) but it really refers to a line of thunderstorms along or ahead of a cold front and has a certain mechanism to it. What's coming behind is a showery trough.

DOCARCH

Valentia gusting 115 km/h in 0900 reports.

Casement recorded 13.1mm between 8 and 9.

spookwoman

Goldfinch8 wrote: »

Looking at radar and satellite images, I find the clearly defined squall lines a particularly interesting feature of this system. Another incoming one lining up off the west coast now.

Looks like another may be forming off Donegal

Meteorite58

Nice convective line feature along the S /SE



https://twitter.com/CorkSafetyAlert/status/1226442002318925824?s=20

Meteorite58

https://twitter.com/flightradar24/status/1226395432252780544?s=20

Mortelaro

Meteorite58 wrote: »

Nice convective line feature along the S /SE



https://twitter.com/CorkSafetyAlert/status/1226442002318925824?s=20

https://twitter.com/Arklowweather/status/1226437460076482562?s=19

Graces7

Strong intermittent gusts and some more sustained wind out here and the sun keeps trying to break through.

Meteorite58

nacho libre

Think the story of this storm has been the rain rate- i am seeing places flooded that have not been for a long time. Hopefully we get some heavy snow showers over night that accumulate- the wetness of the ground won't be an issue, if the air temperature is low enough.

redsteveireland

SleetAndSnow wrote: »

Torrential downpour in cork city at the moment, heaviest I've seen in a while! (Was whiteout but rain whiteout? Haha) Strong gusts of wind hitting the house too. Was woken up a few times during the night with them

She's making herself known anyway

Sounds like a down burst or micro burst?

Gaoth Laidir

Everywhere well down on gusts in the 10 am reports except Malin Head and Sherkin, 61 and 58 kt, respectively. Malin Head looks horrible, 1.4 km visibility in heavy rain, mean wind 46 kt. It may top 70 kt gust in the next couple of hours but then it's up to convection to give us gusts.

PsMETAR MALI 091000Z AUTO 25046G61KT 1400NDV +RA BKN026/// 07/06 0962 MSL=

JanuarySnowstor

Well by Monday night and Tuesday in particular we will have -8 upper temperatures over us so it should feel really bitter. Snow looks a certainty but how much and will it lie is the issue. I would think it will mainly lie on high ground but considering much of Cork is hilly it looks like an interesting commute home on Monday night. Met Eireann have already said they will issue warnings later today for the event. If Mondays disturbance were to fall primarily as snow we could be looking at an orange snow warning for the South?!......though I guess Met Eireann will deem yellow as being sufficent. It's not often that Ireland will be colder than Scotland but the next 48hours the coldest place in Western Europe is ourselves!!

burren

Wind really starting to pick up now here in The Netherlands. First coastal stations reporting gusts over 100km/h. Ciara will peak here late afternoon early evening. Models showing a good bit of purple and tight gradients over the North sea. Wouldn't surprise me if somewhere in the NW a 150km/h gust will be reported later today. Will be out to the beach this afternoon. Might send some live storm update later.

https://oud.weerplaza.nl/gdata/10min/GMT_FXFX_latest.png