A slow-moving storm system will bring days of downpours to parts of eastern Spain this week.
The storm will arrive on Tuesday, unleashing heavy rain and thunderstorms from northeast Spain into southern France and the Balearic Islands.
Downpours can unleash 25-50 mm (1-2 inches) of rainfall in a short time period causing flash flooding and heightened risk for mudslides.
Locations at the greatest risk for these impacts on Tuesday and Tuesday night include Marseille and Montpellier in France and Barcelona, Tarragona and Palma in Spain.
As the storm drifts southward and stalls on Wednesday, thunderstorms and downpours will be possible from Barcelona to Murcia and across the Balearic Islands.
Aside from the continued risk for flash flooding and mudslides, these thunderstorms will also be capable producing hail.
On Thursday, the heaviest rainfall will shift southward giving some reprieve to Palma and Barcelona; however, downpours will continue to target Valencia to Murcia.
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Downpours will also expand farther south and west reaching Almeria with a few showers and thunderstorms as far west as Malaga.
The core of the heaviest rainfall will shift back northward slightly on Friday putting Murcia, Valencia and Palma at greatest risk for additional flooding and travel disruptions.
These downpours will continue to expand northward into the weekend once again putting Barcelona at risk for impacts. The Balearic Islands and coastal locations as far south as Valencia will also be at risk for additional downpours.
Total rainfall through this weekend across eastern Spain and the Balearic Islands will average 50-100 mm (2-4 inches) with an AccuWeather Local StormMax™ of 200 mm (8 inches).
Normal rainfall for the entire month of September ranges from 25-75 mm (1-3 inches) across eastern Spain.
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