Convective/Thunderstorm Discussion: Autumn/Winter 2016-17

Course they do, Current sodium lights pollute everything in a dirty orange colour, hideous. LED's are efficient and reflect light where needed not scattered everywhere including the sky.

LED's also allow police and security cameras identify colours because everything isn't seen a dirty yellow orange colour. You can see proper colour. So from a security aspect led's are much better.

You can also see lightning better without so much light pollution, not to mention the night sky in general.

JCX BXC

In the forecast for Waterford airport there is a chance of Thunderstorm small hail/snow pellets from 7pm-10pm this evening.

Edit: Also in the Cork Airport forecast until 3am.

Calina

Carnacalla wrote: »

In the forecast for Waterford airport there is a chance of Thunderstorm small hail/snow pellets from 7pm-10pm this evening.

Will Waterford keep it all?

JCX BXC

Calina wrote: »

Will Waterford keep it all?

Also in the Cork Airport forecast!

Calina

Carnacalla wrote: »

Also in the Cork Airport forecast!

Still no good.

DOCARCH

From here, looks like an anvil/CB developing over the Dublin/Wicklow Mountains, but, cloud looks more dramatic than the radar return!

Hal1

Probably the build up ahead of the front (trough) orographic lifting I suspect.

Meteorite58

Looks like good potential again tonight in the SE and up along the E Coast



Day 1 Convective Outlook
VALID 06:00 UTC Sat 15 Oct 2016 - 05:59 UTC Sun 16 Oct 2016

ISSUED 07:16 UTC Sat 15 Oct 2016

ISSUED BY: Dan

Broad upper low will reside to the southwest of the British Isles, but with various forcing elements pivoting around its main centre of gravity to bring renewed pulses of (a messy mix of) dynamic/convective precipitation northeastwards at various stages through Saturday and Saturday night. All of these features have the potential to produce some sporadic/isolated lightning activity, most likely over open waters and on windward coasts where relatively warm SSTs beneath cold mid-levels will increase instability.

One such feature will arrive across S/SW coastal areas this afternoon, and already has a history of producing some sporadic lightning near the Brest peninsula so far this morning, but is expected to weaken as it moves further inland through Saturday evening. Nonetheless, squally gusts of wind and some small hail will be possible from the most intense embedded cells.

Attention then turns more to the overnight hours as the upper trough advances from the southwest, a sharpening shortwave rounding the base and running north across Ireland/Irish Sea later. An increase in shower coverage/intensity is expected here through Saturday night, and given some marginal instability have issued a low-end SLGT where slightly better environmental conditions look likely to develop to produce lightning. Again, some small hail and gusty winds will be possible with the strongest cells.

Later in the night, another showery feature approaches the south coast from the English Channel. Given slightly better instability and stronger wind shear, this will need monitoring for the potential for a waterspout/tornado. This is considered very low risk in any one location, but similar setups in the past have yielded some tornadic activity, which is climatologically most likely along coastal areas between Gosport and Brighton

In reality, other local-scale SLGTs could be issued, but it is near-impossible to be any more precise as to where the best ingredients could (briefly) come together to increase lightning potential on a local scale.

JCX BXC

Yay west Clare is in that! The whole of Ireland infact.

We really don't get our fair share of thunder here.

Meteorite58

Looks like there could be plenty of activity overnight along coastal areas, and maybe some here around Kerry / Clare also

Waterford /Wexford looks like the hotspot again

Oscar Bravo

Met Eireann 1629 update

Bands of heavy showers with some embedded thunderstorms will spread from the south over the country this evening and tonight. The showers are likely to be heaviest and most prolonged in southern and eastern counties, with a risk of spot flooding. Southeasterly winds will increase fresh to strong in many places overnight. Lowest temperatures 5 to 9 degrees Celsius.

Hal1

A new batch of sferics being detected off Rosslare.

Oscar Bravo

1600 ,Status Yellow update

STATUS YELLOW

Weather Advisory for Dublin, Kilkenny, Louth, Wexford, Wicklow, Meath, Cork and Waterford
Risk of localised spot flooding due to heavy thundery downpours.

Issued:Saturday 15 October 2016 16:00
Valid:Saturday 15 October 2016 16:01 to Sunday 16 October 2016 12:00

pad199207

Hal1 wrote: »

A new batch of sferics being detected off Rosslare.

Don't see any

JCX BXC

pad199207 wrote: »

Don't see any

I dont even see percip off Rosslare.

Where are you seeing this?

Oscar Bravo

Nor do i, however directly south of Cork and Kinsale ,a good bit off shore, there is some recent strikes, with a further clump out to the SW

Hal1

Apologies, I was looking at the graph since midnight . This, http://brunnur.vedur.is/athuganir/eldingar/

But fear not, they will come and they will be heavy showers with frequent cg strikes! yaaayyyyyyy .

Oscar Bravo

lots of sparks gathering to the south and south west of ireland now.... will they make it to the coast...

Meteorite58

17.57

pedigree 6

Carnacalla wrote: »

Yay west Clare is in that! The whole of Ireland infact.

We really don't get our fair share of thunder here.

I'll send some thunder and lightning on to you by e-mail.
An post might be too slow.

Check out http://en.sat24.com/en

Might be some action as the low system moves over.

JCX BXC

A chance of Thunderstorm Rain/Hail in the forecast in Cork airport from 7pm-3am, to 4am in Waterford airport and from 1am-9am in Dublin Airport

JCX BXC

Looks like a fairly intense shower will be heading right up through Cork City soon.

Oscar Bravo

Cork could be right in the firing line

pad199207

Things starting to become a lot more busier now off the south coast . Munster and Leinster could see a fair bit of activity tonight! Coastal areas favoured of course.

Meteorite58

pad199207 wrote: »

Things starting to become a lot more busier now off the south coast . Munster and Leinster could see a fair bit of activity tonight! Coastal areas favoured of course.

Yea Heavy rain corresponding with recent Sferics coming into view just off the Cork coast now.

Meteorite58

JCX BXC

Angry cell heading towards Youghal, Co.Cork

ArKl0w

Carnacalla wrote: »

Angry cell heading towards Youghal, Co.Cork

There's much angrier lurking off the SW coast which will impact cork and Kerry later tonight by the colours on the UK met radar page
On the Irish one it has a colour for less than 2mm/hr
On the Uk bright red purple and bits of white i.e. 15 to north of 30mm/hr