”During Thursday and Friday, rain and showers will pass with a risk that large amounts can fall in areas in Västernorrland that have already been severely affected", writes SMHI.
In total, 30-50 millimeters of rain may come, and locally even more.
These are large amounts of rain in a short time, in the same areas that are already vulnerable, says Hilda Westberg and continues:
The ground is already very saturated since the rain over the weekend, so the risk of watercourses overflowing increases.
High flows
The warning applies from September 11 at 00 to September 12 at 12.
At present, SMHI does not think it is relevant to issue an orange warning, the higher warning level.
But I should not say that it will not happen, the warning watch will follow up on this during the morning, says Westberg.
Behind the new storm is a low-pressure system from Poland and Germany that will move up over the Baltic Sea.
SMHI's warning comes at a time when several authorities are already working with the consequences of the weekend's rain. Up to 100 millimeters of rain fell in a short time on Sunday and mainly affected Härnösand, Kramfors, Sollefteå, and Örnsköldsvik.
Roads were washed away and a man died when the road under the car he was traveling in cracked. About 40 roads have been damaged so badly that they are completely closed or have limited accessibility.
No prognosis
Two trains derailed on the Ådalsbanan and Norra stambanan, respectively, and the Swedish Transport Administration has also stopped train traffic on the Botniabanan due to the fact that certain sections are under water.
It is clear that it will take a long time to clear and ensure safety after the derailments, and the Swedish Transport Administration has no prognosis on when traffic on the Botniabanan can resume.
There is water against the embankment and rail, therefore we cannot make assessments at present, states Henrik Lundqvist, unit manager for maintenance at the Swedish Transport Administration.
