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of intense rainfall, which will not always have an official rain gauge. One example is the extremely localised flooding in Coverack in Cornwall. The very far eastern edge of the Lizard peninsular experienced intense rainfall and hail however just half a mile away it remained dry. Reports from a voluntary

to identify aspects of the model simulations that need improving in order to produce more accurate lightning forecasts, which would help save lives and protect livelihoods around the world.   “There is still limited understanding in the link between the evolution of ice crystals and graupel (soft hail

; a limitation of the encoding and data transfer method. The empirical relationship between radar reflectivity and rainfall rate is fixed whereas in reality this is highly dependent on precipitation type and is very different for rain and hail. Synoptic Chart For the 7 May 2000 1800 (UTC). Lightning

and northern England later on Wednesday night and into Thursday morning. “In addition, scattered heavy showers and thunderstorms may break out on Thursday afternoon and evening across parts of central, southern and eastern England, along with perhaps south Wales, which may produce gusty winds, large hail

said: “Over the coming days we’ll be transitioning to a more unsettled regime for the UK, though temperatures will remain high and it’ll feel very humid for many. “Heavy showers and thunderstorms are likely to become more frequent through the weekend, with the potential for associated hail, lightning

today. 2 to 5 cm of snow accumulations are expected above 200 meters. Sunny spells and scattered showers are expected elsewhere. The showers will be heaviest and slow moving across south west England and Wales, where hail and thunder are likely too. Deputy Chief Meteorologist Dan Harris said: “The band

be widespread and torrential in places. Whilst rainfall totals will vary considerably from places to place, up to 100mm of rain could build up in some locations with potential impacts including the chance of some flooding as well as poor travel conditions due to surface water. Lightning and hail

, Northern Ireland and around Irish Sea coasts, but eastern coasts will also be affected at times on Friday and Saturday. There will be gales which could lead to temporary blizzard conditions as well as a risk of hail and thunder in some locations. Although the south of the UK is likely to avoid

. Meanwhile in the north there are thundery showers moving eastwards across the country today, bringing intense showers in places with the potential for hail too. A band of heavy thundery showers will move across parts of the south east and East Anglia on Thursday morning, not everywhere will see

a potential for surface-water flooding.  “Within the warning areas, potential impacts include the chance for some power cuts, difficult travelling conditions thanks to sudden changes in driving conditions and possible flooding of travel routes, homes and businesses. Hail and lightning could also