Mountain Ash and the broader Rhondda Cynon Taf area are bracing for significant rainfall as the Met Office has issued a yellow weather warning for the region. The warning, which covers much of South Wales, is active from 9 PM on Tuesday, 18th June, extending through to 6 PM on Wednesday, 19th June. Residents are advised to prepare for potential disruption, including localised flooding and challenging travel conditions.
The Met Office forecasts heavy rain to develop across the area, leading to accumulations of 20 to 30 millimetres (mm) quite widely. On higher ground, particularly over the Welsh mountains, rainfall totals could reach between 50 and 60 mm. This volume of precipitation over a relatively short period raises concerns about surface water flooding, especially in areas prone to such events, and could impact smaller rivers and streams.
The expected weather conditions may lead to difficult driving conditions, with reduced visibility on roads due to spray and standing water. Public transport services, including bus and train routes, could experience delays or cancellations. Residents are encouraged to check local travel updates before making journeys and to allow extra time for travel. The wind speeds are expected to be moderate, generally between 10-15 mph, but could gust higher in exposed areas, exacerbating driving difficulties.
Across the wider UK, while parts of Wales and the South West of England will bear the brunt of this rain system, other regions are set to experience varied conditions. Northern Ireland and Scotland are generally expected to see a mix of sunshine and scattered showers, with temperatures ranging from 12-18°C. In England, areas further east and north may experience a drier outlook, though some western parts could see an extension of the wet weather, albeit less intense than in South Wales. Temperatures across England are generally predicted to be in the range of 15-20°C.
Safety advice from authorities includes never attempting to drive or walk through floodwaters, as even shallow depths can be dangerous. Homeowners in flood-prone areas are encouraged to secure outdoor items and consider preparing flood kits. The Met Office will continue to monitor the situation and update warnings as necessary. The current temperatures in the Mountain Ash area are expected to hover around 14-16°C during this period of heavy rain, feeling cooler due to the wet and breezy conditions.
Source: Met Office