Thunderstorm/Convective Watch: Summer 2010

BEASTERLY

Rain/Thunder being reported by Met Eireann at Belmullet , has anybody on here seen/heard anything? Some beefy showers over Connaught by the looks of the radar.

Su Campu

That was a comma system that clipped the northwest earlier, linked to an upper shortwave trough passing through. It didn't turn out quite as potent as I had highlighted on Thursday above, maybe next time!

skipz

Thunderstorm warnings for Irealnd today on meteoalarm.eu
http://www.meteoalarm.eu
Any chance?

Oscar Bravo

Im sure there had to be thunder in some of the showers about the country today,that said,i didnt hear any and there was some severe downpours here today.might be some tonight too,from Met update at 1608 "Rain or showers will become widespread tonight with heavy falls in many areas, especially in parts of the west and north later in the night with a risk of local thunder."

snowjon

A few rumbles of thunder here from a shower at about 7pm yesterday. Quite a heavy shower just about to hit now - almost exactly 24 hrs later - although it doesnt look as nasty as yesterday's

Graces7

Thundery here an hour or more; collie freaking out... we have moved so are south now.

Su Campu

7 strikes registered in the Limerick area in the last 7 minutes....

http://andvari.vedur.is/athuganir/eldingar/elding.txt?

Iancar29

Some suspicious little cell coming onto the Galway coast right Now people , the shape to it like.

dexter647

an interesting nite ahead maybe:)

Oscar Bravo

There sure is.has to be lightening in that!! Grew since the 2215 image too.

Su Campu

There are lots of stirkes this morning in the the midlands and west being reported in this list but not showing up on the corresponding map below. I assume the map only shows cloud-ground strikes?

Su Campu

OK I've just copped on that the longitude (Lengd) in the strikes list is actually negative for EAST, not west, as is normal, so all those strikes are actually the ones over the continent, east of the 0° meridian.

There's alsways a simple explanation :rolleyes:

SeaFields

Ok ye might have seen this already ... It is feckin' class tho ... lightning hitting the church in Sneem, Co. Kerry this summer.

https://www.youtube.com/watch?v=bIL0gyo1J2s

Deep Easterly

SeaFields wrote: »

Ok ye might have seen this already ... It is feckin' class tho ... lightning hitting the church in Sneem, Co. Kerry this summer.

https://www.youtube.com/watch?v=bIL0gyo1J2s

Tome capture!

Su Campu

ESTOFEX have a chance of thunderstorms for southwestern Ireland tomorrow night, with a mention of a possible upgrade to a level 1.

Storm Forecast
Valid: Fri 03 Sep 2010 06:00 to Sat 04 Sep 2010 06:00 UTC
Issued: Thu 02 Sep 2010 17:50
Forecaster: TUSCHY


A level 2 was issued for parts of Tunisia, the Tyrrhenian Sea, Sicily and S-Italy mainly for excessive rainfall amounts, large to giant hail, severe to damaging wind gusts and tornadoes.

A level 1 surrounds the level 2 with a limited severe risk.

SYNOPSIS

Omega pattern over Europe persists. A weakening trough traverses the western/central Mediterranean and sparks numerous organized thunderstorms over the highlighted area. A few non-severe storms are forecast over far NE-Europe and along the coast of NE-Germany.

DISCUSSION

... N-Tunisia, Sicily, S-Italy and the Tyrrhenian Sea ...

A weakening upper trough affects the area during the forecast. This feature becomes absorbed by an extensive upper vortex to the north, so forcing weakens betimes.

A pool of extremely moist air is present south of Sicily, which advects northwards. As the upper wave draws near, surface pressure drops constantly and a LLJ evolves to its east, e.g. over Sicily. A sharp baroclinic zone is present with capped 3000 J/kg MLCAPE to its south and weakly capped 1000-2000 J/kg MLCAPE to its north. Persistent influx of high moisture content from the south beneath PVA maximum yield a favorable set-up for long-lived and large thunderstorm clusters with an excessive rainfall risk over a broad area. Life-threatening rainfall amounts beneath training/slow moving storms are forecast in a very efficient environment for prolific rainfall producers.

Further to the south, where CIN increases, more discrete storm structures are forecast with giant hail, tornadoes and damaging wind gusts. Storm coverage becomes more isolated in nature, but either discrete storms or a "tail-end charlie" (if a V-shaped cluster evolves) could produce extremely severe events.

The exact path of highest rainfall amounts remains quite unclear, as models have significant problems in handling the amount of latent heat release/convection. Hence, the level 2 still remains coarse.

...Ireland...

Slowly eastward propagating cold front affects Ireland during the night. A few storms are possible and moist inflow may assist in a few storms with heavy rainfall, but core of LLJ shifts rapidly to the north, so no focused severe risk is forecast for now. Nevertheless, conditions are prime for potentially backbuilding clusters west of Ireland. If this line builds far enough to the south, a level 1 may be issued for locally heavy rainfall amounts.

dexter647

cool.. hopefully something to look forward 2..:)

Su Campu

Some rich convection's been brewing just southwest of the Kerry coast this evening, moving NNE'wards, as the upper trough to the west deepens and becomes more negatively tilted. There have been some sferics in this. Extreme western fringes have a chance of seeing something tonight.

Su Campu

Lightning rate is getting higher now....

http://andvari.vedur.is/athuganir/eldingar/elding.txt?

DOCARCH

Got woken up by a huge clap of thunder a few minutes ago! Now it's bucketing down.

http://andvari.vedur.is/athuganir/eldingar/i_dag_na.html?

Birdnuts

Just had a "dry" T-Storm @0740. Feeling muggy in 16C and alot of Altocumulus Floccus/castellanus about - first time this year I reckon!!

DOCARCH

Some more thundery stuff/lightning strikes showing up now over west Waterford. http://andvari.vedur.is/athuganir/eldingar/i_dag_na.html?

Not

DOCARCH wrote: »

Got woken up by a huge clap of thunder a few minutes ago! Now it's bucketing down.

http://andvari.vedur.is/athuganir/eldingar/i_dag_na.html?

Yep, woke up this morning, looked out the back (to the east), seemed to be a fine bright sunny day with just some gathering high white wisps of cloud, next thing boom and it started raining seemingly from nowhere with the sun still splitting the skys :eek:

Su Campu

It's mostly elevated convection. Lower levels are fairly stable, shown by the numerous wave clouds south of Dublin this morning. Upper level instability from the sharp upper trough is causing convection at higher levels. Baldonnel's METAR at 07Z reported recent thunder and Broken CBs at 4000ft, and Dublin had Scatttered at 5000ft - hairly high bases for us.

DOCARCH

Some nice cloud heights moving up from the south http://www.sat24.com/gb

Su Campu

SIGMET out for thunderstorms for the southeast:

EISN SIGMET 03 VALID 040830/041130 EINN- EISN SHANNON FIR/UIR EMBD TS FCST E OF W00800 S OF N5300 TOP FL320 MOV NE AT 20KT NC=

"Valid 0830-1130Z. Embedded thunderstorms forecast east of 8W south of 53N, tops 32,000ft, moving northeastwards at 20 knots"

DOCARCH

Just heard a distant rumble of thunder. And another!

Garseys

Nice big rumbles here in Tallaght. Fairly close together aswell. one or two flashes!

DOCARCH

And another again. Something brewing to the south west. Very fragmented skies.

*eadaoin

was awoken by an almightly thunder clap in dublin 14 this morning at around 8am, woke both me & the hubby up looking bleary eyed and confused at each other cause it souded different to thunder we've heard before - i thought it might be an explosion lol.

there's a couple of peals after rolling out in the last few minutes, is it the beginning of a storm?

peanuthead

Yeah, just got woken up by it there too, was supposed to be going out for a run, will hit the gym instead I think. A bit childish I know, but thunder frightens me!! lol