Convective Outlook: Sat 09 Apr 2016 |
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What do these risk levels mean? |
VALID 06:00 UTC Sat 09 Apr 2016 - 05:59 UTC Sun 10 Apr 2016
ISSUED 19:53 UTC Fri 08 Apr 2016
br> br>ISSUED BY: Dan
Notably cold airmass spreads across most of the British Isles behind a northwards/eastwards-moving occlusion, as a broad upper low slides SEwards from the Atlantic towards west of Biscay. In a deeply unstable airmass, especially so to diurnal heating, numerous showers are expected with a few thunderstorms, especially across Ireland where low-level convergence and very steep lapse rates will aid in shower/thunderstorm development. One precluding factor across Ireland is the lack of any significant shear, with pulse-type showers/storms the most likely mode, but also scope for shower-training and some local surface water issues given the rather slack setup.