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Thunderstorm/Convective Watch - Spring/Summer 2012
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Moderators, Home & Garden Moderators, Science, Health & Environment Moderators Posts: 17,724 Mod ✭✭✭✭
Join Date:Posts: 17498
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TORRO TORNADO WATCH 2012/008 AND CONVECTIVE DISCUSSION 2012/016
A TORRO TORNADO WATCH AND CONVECTIVE DISCUSSION have been issued at 0800GMT on Wednesday 29th August 2012
Valid from/until: 0800GMT – 2359GMT on Wednesday 29th August 2012 for the following regions of the United Kingdom & Eire:
TORNADO WATCH:
Far eastern Eire
N England
Midlands
SW England
Wales
CONVECTIVE DISCUSSION
Much of Scotland
IoM
Central Eire
N Ireland
THREATS
TOR WATCH: Tornadoes; hail to 30mm diameter; wind gusts to 60mph, CG lightning
DISCUSSION: Wind gusts to 50mph; isolated tornadoes; hail; CG lightning
SYNOPSIS
Large upper trough to the west of the British Isles will drift eastwards today. Ahead of this, a cold front is moving eastwards, followed by a well-mixed polar maritime airmass. A mixture of shear and curvature vorticity is enhancing shower activity within this airmass, with thunderstorms already detected.
Along the cold front, some line convection has developed around SW England, and this may continue eastwards today, bringing some gusty winds and a small risk of a tornado.
Behind the front, numerous showers and a few thunderstorms are expected across most of the rest of the discussion area. Across central and south-western parts of the area wind shear will be sufficient for storms to organise into lines and perhaps supercells, with an associated wind threat. Reasonable low-level shear suggests isolated tornadoes will be possible too.
Elsewhere, whilst shear will be weaker, reasonable low-mid level buoyancy means strong storms are possible, although more of a pulse nature. Isolated tornadoes where low-level convergence develops will be possible.
Forecaster: RPK.0 -
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average_runner wrote: »Wexford always does well on thunder front. Remember many a summer storm down there in 90's. 3-4 hour storms.
Is Dublin going to see much ? Why did i move to Dublin:mad:
Later on this afternoon is our best shot
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Updated ALert Discussion From Net Weather
*UPDATE 0930Z WEDS 29TH AUGUST*
Have issued a broad SLIGHT risk area to cover Eire, England, Wales and S Scotland. Linear convection has developed along cold front, risk of isolated lightning along with strong wind gusts and perhaps an isolated tornado exists with this convection.
Unstable polar maritime airmass following front will be conducive for numerous showers and thunderstorms to move northeast across much of the UK through the day. Organised band of storms are noted near/along short-wave trough approaching western mainland UK - pronounced dry slot overspreading western UK along with sufficient deep layer and low-level shear suggests organised bands of storms capable of producing strong wind gusts, hail to 2cm or more in size, flash flooding and also a threat of tornadoes where surface winds back ahead of troughs.0 -
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Moderators, Home & Garden Moderators, Science, Health & Environment Moderators Posts: 17,724 Mod ✭✭✭✭ Join Date:Posts: 17498
Sferics to my West and NW ..
... heard nothing when i was at the window!
Heard nothing either....so it didn't happen!
Getting fed up now with everybody elses thunder reports. :mad:
Some recent sferics (well) to the west and north west of Dublin (edit: as IanC reported above). More recent sferics around Drogheda and south of Dundalk.0 -
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All I've got this summer was two distant rumbles on Aug 21st. This discussion has been closed.
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