Torro - the UK's Tornado and Storm Research Organisation
Bericht van: Gianni (Izegem, W-VL) , 26-07-2013 14:12
The situation today and tomorrow across portions of N France, BeNeLux, and Germany is very interesting, and potentially nasty. A Spanish Plume of steep mid-level lapse rates will overspread a very moist and warm airmass through the next 24 hours, as several short wave troughs approach. The most significant of these will be through tomorrow aftenoon, but today, one is currently approaching NW France, evidenced by cirrus across that area, and into S England.
This afternoon, widely scattered supercells are likely across N France, with hail 5-10cms in diameter with the more dominant cells, along with damaging winds and perhaps a couple of tornadoes.
Tomorrow, with a W-E (ish) orientated warm front, 2000-3000J/Kg of CAPE, dewpoints of 21-22C, and deep layer shear ~50 knots, intense supercells capable of very large hail (>8cms) and strong tornadoes seem possible across NE France into the BeNeLux. This may be modulated by any development of a nocturnal MCS tonight.
Part of the moisture and steep lapse rate plume will cross SE England on Saturday. Elevated thunderstorms look possible across this area, perhaps with some hail, and heavy rain - further west, embedded thunderstorms are possible in a more general area of heavy rain.
En, het toppunt is, REED TIMMER poste volgende reactie op de tekst hierboven op Facebook:
'Keep an eye out across the pond!!! Strong tornadoes are possible!'
This afternoon, widely scattered supercells are likely across N France, with hail 5-10cms in diameter with the more dominant cells, along with damaging winds and perhaps a couple of tornadoes.
Tomorrow, with a W-E (ish) orientated warm front, 2000-3000J/Kg of CAPE, dewpoints of 21-22C, and deep layer shear ~50 knots, intense supercells capable of very large hail (>8cms) and strong tornadoes seem possible across NE France into the BeNeLux. This may be modulated by any development of a nocturnal MCS tonight.
Part of the moisture and steep lapse rate plume will cross SE England on Saturday. Elevated thunderstorms look possible across this area, perhaps with some hail, and heavy rain - further west, embedded thunderstorms are possible in a more general area of heavy rain.
En, het toppunt is, REED TIMMER poste volgende reactie op de tekst hierboven op Facebook:
'Keep an eye out across the pond!!! Strong tornadoes are possible!'
