This cold pool, atop SSTs and daytime temperatures inland, will generate a few hundred Jkg^-1 CAPE with scattered showers expected to develop, some weakly electrified. Given cold air aloft and steep lapse rates, the most intense showers will be capable of producing quite a bit of small hail. The exact forecast evolution is complicated somewhat by a post-cold front occlusion which may provide an area of cloud and showery precipitation over SW Britain, the detail of which varies from run-to-run amongst NWP - this might inhibit convection to a certain extent. Nonetheless, a broad LOW threat level has been issued, not quite high enough to warrant a SLGT, with the best potential likely to be over Wales and SW England.