Sunday 23rd: Potential Storm Discussion

Kermit.de.frog · 19-09-2018 05:41AM #1

This developing system overnight Saturday and for Sunday looks to catch the northern side of the Jet Stream which explosively winds it up as it approaches our shores.

This could go either way - still not complete model agreement and the depth and strength of this is up for grabs. What makes it somewhat different is the potential for disruption in the east due to onshore winds here.

gfs-0-108.png?0

This needs to be watched particularly for the southwest and east of the country. This is, of course, track dependent so the precise impact areas would change.

This is not only a potential storm/wind event - but a rain one too.

gfs-2-102.png?0

Keep up to date as this is an evolving situation.

igCorcaigh · 19-09-2018 10:36AM

https://twitter.com/CarlowWeather/status/1042344586218221568?s=19

daydorunrun · 19-09-2018 12:25PM

♫One storm at a time, sweet kermit, thats all I'm asking from yoooou♫

Liffey4A · 19-09-2018 12:53PM

Can we get a dedicated technical thread for this potential storm please?

average_runner · 19-09-2018 01:18PM

Hi All,
Running a race in Cork on Sunday morning, is there a risk of winds like today?

Thanks

DOCARCH · 19-09-2018 01:18PM

Liffey4A wrote: »

Can we get a dedicated technical thread for this potential storm please?

We'll see....more likely to have a separate dedicated weather warning moan discussion thread!

Just wondering might there be a chance of another storm on Friday first (before Sunday)?

pauldry · 19-09-2018 01:22PM

The Sunday storm goes further South on every run.

Maybe we in Sligo might dodge Bronas wrath

SleetAndSnow · 19-09-2018 01:34PM

Further south is worse for us cork people I’m assuming! This will be interesting

YFlyer · 19-09-2018 01:38PM

As long as it misses Limerick city. Ali didn't even give us a glancing blow.

Vinnie222 · 19-09-2018 01:39PM

YFlyer wrote: »

As long as it misses Limerick city. Ali didn't even give us a glancing blow.

Up for a windy run ?

YFlyer · 19-09-2018 01:45PM

Vinnie222 wrote: »

Up for a windy run ?

I'll probably go down the riverbank

Luckycharms_74 · 19-09-2018 03:00PM

average_runner wrote: »

Hi All,
Running a race in Cork on Sunday morning, is there a risk of winds like today?

Thanks

If its a tailwind you might break the record, if not then you're in for a tough day

All joking aside, its impossible to tell until closer to the time. Anything now is bordering on the FI charts.

average_runner · 19-09-2018 03:13PM

Luckycharms_74 wrote: »

If its a tailwind you might break the record, if not then you're in for a tough day

All joking aside, its impossible to tell until closer to the time. Anything now is bordering on the FI charts.

Sadly its an out and back course:mad:

SleetAndSnow · 19-09-2018 03:20PM

GFS still showing the storm

Looks to be mainly during the night though / 8am and moved on during the afternoon which could be a good thing.

Kermit.de.frog · 19-09-2018 03:49PM

Pardon the jargon but that's the parallel run...but it does show the uncertainty with the track of the system. Need a couple of more days with this one.

Here is the operational.

Nothing nailed down yet.

odyboody · 19-09-2018 03:57PM

Kermit.de.frog wrote: »

Pardon the jargon but that's the parallel run...but it does show the uncertainty with the track of the system. Need a couple of more days with this one.

Here is the operational.

Nothing nailed down yet.

Think everything should be nailed down if that happens

Pretzill · 19-09-2018 04:21PM

Sailing to France Sunday evening - is it going to be bad out as sea do you think?

Kermit.de.frog · 19-09-2018 04:45PM

SleetAndSnow · 19-09-2018 04:49PM

12z GFS rollin out now. Lets see!

spookwoman · 19-09-2018 04:57PM

Pretzill wrote: »

Sailing to France Sunday evening - is it going to be bad out as sea do you think?

https://www.youtube.com/watch?v=D5iTNRPNHKE

SleetAndSnow · 19-09-2018 04:58PM

Here we have the 12z gfs at 2am Sunday:

vs the 6z:

Also the 12z at 8AM:

It has weakened a bit and takes longer to form. we will see what the other models have to say later.

MJohnston · 19-09-2018 05:05PM

ARPEGE still showing potential for severe coastal gusts in the south and east tomorrow night, so we shouldn't overlook that in the rush to Sunday:

This system could also bring a significant amount of rain for those same areas (this is the most extreme, but all models are showing at least 20mm rain tomorrow for the east):

ICON is showing us just dodging an intense system of extremely high winds, but only by a scant 100km or so:

D9Male · 19-09-2018 05:09PM

The storm potential has definitely reduced for Sunday, but a lot can change.

Pretzill · 19-09-2018 05:12PM

You are funny people

M.T. Cranium · 19-09-2018 05:37PM

If the Sunday storm track stays near or off the south coast, the worst potential would be for strong northeast backing to north winds in Leinster and east Munster, and peak gusts likely under 110 km/hr on current charts.

This could change back to a more severe outlook if the storm track lifts by 1-2 deg.

Thursday evening potential is probably worst in southern Britain but could be some scattered yellow alert type conditions in Ireland.

SleetAndSnow · 19-09-2018 05:39PM

According to the UKMO there won't even be a storm.

DOCARCH · 19-09-2018 05:46PM

SleetAndSnow wrote: »

According to the UKMO there won't even be a storm.

Met Eireann guy (....just can't remember his name off the top of my head....) on radio a few minutes ago saying they had tele conference with UKMO this afternoon and UKMO worried about potential storm tomorrow night/Friday and Sunday.

Storm 10 · 19-09-2018 05:47PM

Gerry on RTE Radio said they just had a conference call with the UK Met about Sundays storm and it's going to be watched and warnings issued if required

M.T. Cranium · 19-09-2018 05:48PM

Some of the energy for this event, wherever it tracks, comes from now dissipated Florence which was last located heading east through the Gulf of Maine (since 00z analysis keeps that wave moving east and develops a new centre that is further south and likely to break away to remain in the central Atlantic ... if that got tropical again it's possible the NHC would consider it reborn Florence, but watching satellite imagery it appears that a lot of the energy is with the leading wave).

SleetAndSnow · 19-09-2018 05:48PM

DOCARCH wrote: »

Met Eireann guy (....just can't remember his name off the top of my head....) on radio a few minutes ago saying they had tele conference with UKMO this afternoon and UKMO worried about potential storm tomorrow night/Friday and Sunday.

Meant their model, it shows nothing regarding a storm in their 12z update.

M.T. Cranium · 19-09-2018 05:51PM

If the current GFS maps verified, it would be orange alert conditions around Channel Islands and possibly Thames estuary which could get a surge with overnight high tides Sunday-Monday with the very strong northerly winds that follow this low (as depicted). Full moon only 24h after this portion of the storm (at 25th 03z).

The main thing for Ireland would be a very chilly and unpleasant, raw sort of day especially given that it's Sunday with outdoor events more likely. 8 to 10 degrees with a strong wind and a bit of rain blowing sideways is going to feel like mid-winter.

Sunday 23rd: Potential Storm Discussion

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