Storm that sent US temperatures plunging triggers
yellow weather warning for heavy rain over Scotland on Friday
PA Media
Wed 28 Dec
2022 21.03 GMT
The deadly
bomb cyclone that has sent temperatures plunging in the US is also causing the
UK to experience wet and windy weather, the Met Office has said.
On
Wednesday, the forecaster issued a yellow weather warning for heavy rain from
3am on Friday for 15 hours for much of Scotland, including Edinburgh, Glasgow
and Stirling. The Met Office said heavy rain could bring some flooding and travel
disruption.
Simon
Partridge, a meteorologist, said the wet and windy weather was being caused by
the bomb cyclone in the US. “The UK weather is going to remain unsettled with
further spells of wet and windy weather due to the strengthening of the jet
stream because of the weather in the US,” he said.
Partridge
added that the impact on the UK would be “nowhere near” as significant as it
was on the US. “The effect it’s having on the UK is nowhere near as dramatic
because that system has brought up a lot of cold air farther south, across the
US,” he said.
Indeed, the
cyclone is only having an effect on the UK due to its impact on the North
Atlantic jet stream.
“What
effect (the bomb cyclone) has had is to strengthen the jet stream because the
jet stream is basically driven by temperature differences, Partridge added. “So
the starker the difference in temperature between the northern edge of it and
southern edge, the stronger the jet stream becomes.”
He said the
knock-on effect for the UK is spells of wet and windy weather over the next
seven to 10 days.
Thursday is
forecast to be colder than Wednesday, with sunshine and some heavy showers in
northern Scotland and western England, as well as a risk of hail and thunder.
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