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Everything posted by Another Kent clipper
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Holiday advice
Another Kent clipper replied to Flash bang flash bang etc's topic in Storms & Severe Weather
I read from some pdf about European lightning distribution that the Mediterranean in general is the place for autumn storms https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.nat-hazards-earth-syst-sci.net/14/815/2014/nhess-14-815-2014.pdf&ved=2ahUKEwicrfL125HjAhVai1wKHcOMBYMQFjAAegQIAhAB&usg=AOvVaw2wiTUidh_24oGzP18yM2e7 -
Well, tomorrow could be another June 28th. But for Ireland only. First time I've seen a "severe" on convective weather in a long time. Day 2 Convective Outlook VALID 06:00 UTC Fri 28 Jun 2019 - 05:59 UTC Sat 29 Jun 2019 ISSUED 20:19 UTC Thu 27 Jun 2019 ISSUED BY: Dan Upper ridge persists across western Europe, although as it slowly pivots slightly to the east, it allows the EML (elevated mixed layer) that has lingered over the Celtic Sea south of Ireland for the past few days to eventually lift northwards through Friday. A corridor of strong instability (1,500 - 2,000 J/kg elevated CAPE) will ultimately move across S / SW Ireland on Friday morning, which may phase favourably with a ribbon of shear vorticity, and shortwave impulse embedded within the strong southeasterly flow on the forward side of the approaching Atlantic upper vortex. Forecast profiles are fairly saturated between 800-900mb, suggesting that low cloud may be rather extensive, with drizzle in places. An EML will be located above this layer, from which air parcels may be able to rise and lead to deep elevated convection - assuming some moistening of the profile occurs. Most model guidance is reluctant to develop much in the way of convection, and hence confidence is rather low for this scenario. However, the ECMWF and AROME have consistently, run-on-run, signalled the development for elevated thunderstorms over SW Ireland on Friday morning before moving offshore to the NW. Given the magnitude of CAPE available, and the strongly-sheared environment, any storms that do manage to develop could become severe - with the main threat being large hail 2-3cm in diameter, and localised surface water flooding. As such, we have issued a conditional SVR area. There could also be a few elevated showers drifting across NW Ireland towards W Scotland on Friday night, as the EML plume continues to shift gradually northwards and eastwards with time. Subtle forcing and rather dry profiles results in low confidence over how much, if any, lightning activity may occur. A stronger signal exists late in the night, towards Saturday morning, for a new round of elevated thunderstorms to develop as the upper trough axis sharpens and approaches from the south. Primary interest would be over the Celtic Sea and eventually spreading northwards towards eastern Ireland. Confidence is not particularly high at present, so have refrained from including a SLGT here for now.
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How hot will it be? Temperature Competition
Another Kent clipper replied to Paul's topic in Spring Weather Discussion
Friday 30th June, bury st Edmunds, 33.5c -
No storms club 2019 'season'
Another Kent clipper replied to Another Kent clipper's topic in Storms & Severe Weather
Does it count as leaving if I drove 90 minutes to get to the action?