Convective/Thunderstorm Discussion: Autumn/Winter 2016-17

Oscar Bravo

Bang! loud thunder west of Castlebar just now

Dollseyes

Thought I heard thunder. I'm just outside Ballina town

mountainy man

Oscar Bravo wrote: »

Bang! loud thunder west of Castlebar just now

I saw a big blue flash of lightning from your direction but heard no thunder.

Oscar Bravo

Plenty of strikes to the north west of Ireland now, perhaps a few in Donegal will see some sparks after

Oscar Bravo

Recent strikes around the Bundoran area

Pangea

A Lightning strike which done considerable damage in Donegal Town on Christmas night.
https://www.facebook.com/donegalonline/posts/398659000466802

Meteorite58

I wonder will we see some natural Fireworks early Sunday morning into Sunday behind the front in the brisk Northerly unstable airflow. Looks like plenty of wintry showers on high ground with cold uppers.

Meteorite58

A few sferics about today.

ninebeanrows

Surely errors ? Very little instability today in broad warm sector

Meteorite58

Weathercheck wrote: »

Surely errors ? Very little instability today in broad warm sector

Was wondering that, been checking uppers and upper winds to see what was going on ?

Using the same detector ? http://brunnur.vedur.is/athuganir/eldingar/i_dag_na.html




EDIT: Yea same one from the Met Office

Hal1

Met E has the same info: http://www.met.ie/climate/lightning.asp

Meteorite58

Reading the Met Eireann page shows their data is sourced from UK Met Office as well.

Rikand

Had a few lightning strikes over lanzarote last night

PukkaStukka

Rikand wrote: »

Had a few lightning strikes over lanzarote last night

Would I be right in saying that lightning in the Canaries is a rare occurrence?

Iancar29

A strong, negatively titled trough is forecast to push through from the Atlantic midday Friday leading to some good convective potential.


If skies are clear enough for limited diurnal heating, a few hundred joules of CAPE is expected to form.


Strong mid level shear of up to 40knts means cells will last longer and could possibly merge into a squall line.


With upper temps down to -35c a strong lapse rate will result and give the potential for some decent sized hail.


Low level shear is in the range of 15-20knts so small chance of funnel clouds perhaps a weak tornado.


Main threat will be Munster for thunderstorms up until just after dark, however a squall line system is probable, heading NE giving us all something to look out for.


Will be interesting to see if things continue to be favourable when the hi res model comes into range.

Iancar29

So with lack of good clear spells today nothing really interesting fired off, all seems to be high based stuff, you know that when its showing showers over you on radar but hardly even raining out. Showers are evaporating before the reach the ground.

Anyways. Without having the time to post of the charts, tomorrow looks better for convection to fire pretty much anywhere across the country. All variants are pretty much similar to what i expected today (if there had of been good clearance).
Lets hope things go well and we will see some good Cbs at long last!!

Iancar29

Keep an eye on radar the next few hours for cells to fire down the spine of the country and move east. Conditions are favorable for hail/snow (high ground) and even the odd funnel cloud.

JCX BXC

Quite nice cloud formations here in West Clare, very sunny too, temperature climbing too 7.1c now.

If only it was a day in June, I could imagine the convection would be very nice.

Iancar29

Towering CBs now around us here in D11:)

pad199207

Light Hail in Naas

vickers209

pad199207 wrote: »

Light Hail in Naas

same in wicklow short time ago

Wise Old Elf

Hail in Limerick city just now as well

Awaaf

Heavy mixed rain and hail shower in Dun Laoghaire at about 3.45pm. Felt quite cold.

Meteorite58

Thurs and Fri look like potential days for lightning. Thurs possible for squall lines , lot of convergence in that storm system , very cold 500hpa temperatures and sufficient wind sheer in my amateur and learning opinion

Meteorite58

No show. Only got a smattering of sferics well off the SW coast in the early hours.

Oscar Bravo

Recent lightning near Dingle

Iancar29

Conditions look good for some convective showers in the east over the next few hours. Some nice CBs should be visible like last week. Hail and sleet/snow (high ground) possible.

Iancar29

What looks like a hook echo feature just passed over Ennis just now.

weisses

5 nice flashes with proper rumbles here in W Kerry .. lovin it

Meteorite58

Was just looking up the charts weisses as I thought I heard a rumble here near Tralee also and just had a big hail shower, could be getting more into the night perhaps ? and tomorrow looking half decent.