By Jordan Root, AccuWeather meteorologist
September 11,2017, 11:38:48AM,EDT
As quickly as Monday’s windstorm exits, another one will arrive across the United Kingdom on Tuesday night and across Germany on Wednesday, threatening more wind and rain.
Low pressure will zip across Northern England Tuesday night and will intensify as it does so, bringing a gust of wind with it, mostly to areas south of the storm's path.
Strong gales are expected across Wales and Southern England where occasional gusts of 50 to 60 mph are expected. However, locally higher gusts up to 70 mph will be possible, especially near the coast.
"The strongest winds will be across southern and western coastal locations and high terrain of northwestern England and Wales," AccuWeather Meteorologist Tyler Roys said.
These gusts will spread into Germany on Wednesday morning and will continue throughout the day. As the storm tracks across the North Sea and the pressure lowers, strong and damaging wind gusts will blast the northern coast.
Gusts greater than 70 mph will be possible in a small area near and along the northern coast of Germany, Netherlands and Denmark.
Across the United Kingdom and Germany, the strong gusts will be able to knock down some trees and power lines, leading to hazardous conditions and sporadic power cuts. Some areas may be in the dark for a period of time. Some buildings could attain minor damage as well.
"One thing that is concerning is that trees still have many leaves on them which will add weight and bring an increased risk for damage," Roys said.
Cities that will face strong and damaging gusts include Cardiff, London, Norwich and Hamburg.
Blustery showers will occur across Southern England Tuesday night into Wednesday and can contain some of the strongest gusts. Downpours may accompany the showers during this time.
The steadiest and heaviest rain will fall near and north of the storm’s track, putting Northern England, Scotland and Northern Ireland at risk.
Rainfall of 15 to 30 mm (0.60 to 1.20 inches) will occur over this area, but there can be pockets of higher amounts to 50 mm (2.00 inches). This will raise the risk for isolated flooding, especially in any low-lying areas. Motorists will need to watch out for any ponding on road surfaces for the Wednesday commute.
By Wednesday morning, heavier rain will begin to move into northern Germany with wet conditions continuing through the day.
The wind and rain will be disruptive to all travel services, so longer commutes should be expected, especially on Wednesday morning.
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In Germany, the storm has been tagged with the name Sebastian. However, a name has not been assigned by the U.K. Met Office. If one were to be assigned, it would be Aileen, the first name on the list.
While the area of low pressure will quickly leave on Wednesday, blustery and showery conditions will continue across the entire United Kingdom. This pattern will continue through the rest of the week, although showers will become more isolated with sunny spells as the end of the week approaches.
Steadier rain will soak parts of southern Germany on Wednesday night, but showers can be expected along near the northern coast through the rest of the week.
Temperatures will lower behind this low pressure through the rest of the week, making it feel a bit more autumnal.