It’s not unusual to have snow on the
mountains at this time of year but it did come as a surprise after the recent
mild weather. Some of you also had to scrape the frost off the car windscreen
this morning, and there's more frost to come tonight and tomorrow night before
it turns milder, wetter and windier on Thursday.
The air over us has come from the Arctic. As it es over the warmer seas it becomes very unstable, producing towering
clouds and heavy showers. That was the case yesterday evening with a sharp
upper trough of torrential rain, hail and thunder in south Wales.
Today the wind has turned more into the north
with a line of heavy showers forming over the Irish Sea. This is known as a Pembrokeshire Dangler, which extends from Pembroke to Cornwall.
Further downpours are likely in Pembrokeshire
tonight with a risk of hail and thunder. Elsewhere it will be largely dry and
cold with a slight frost.
Tomorrow will be much drier and more settled
than today, with sunny spells and the wind will fall light.
Bonfire night will be dry, clear and cold
with a few mist and fog patches forming. Also a widespread ground frost and
some air frost. It could go down to -2°C in Powys but temperatures will start to rise
after midnight.
On Thursday it’s all change, turning wet and windy; 20 to 40mm
in the south and west with strong to gale force winds. The rain will clear to
blustery showers on Friday with temperatures climbing a few degrees higher
reaching 11 to 13ºC. Saturday will be unsettled and windy with showers
and a longer spell of rain.
