Tempest Claudia Brings Additional Inundation to the Portuguese nation and the Spanish territory

Portugal and Spain are once more recovering from extensive flooding following Storm Claudia delivered torrential downpours and strong winds the previous week.

Claudia's Formation and Trajectory

This weather system originated from a region of depressed atmospheric pressure that had beforehand ushered in unseasonably early cold and snowy conditions through eastern parts of Canada and the American north-east at the start of November.

The system journeyed east across the Atlantic during the second weekend of November before decelerating and halting to the northwestern area of the Iberian region, caught in the trough of an progressively more wavy atmospheric river.

Effects in the Iberian Peninsula

Spain's Galicia area in the northwest was hit first, with three to six inches of rain falling along its Atlantic coast in just a single day up to the evening of Wednesday as a leisurely moving system of rain pushed across the western sectors of the peninsula.

Additional rainfall and electrical storms on the following Thursday caused inundations to parts of Portugal where an older couple lost their lives in the capital Lisbon after rising waters from the bursting Tagus River flooded their dwelling as they rested.

Stormy conditions continued into the weekend, with a twister tearing through a camping ground and a adjacent hotel in Albufeira in southern Portugal on Saturday last week, claiming the life of an British woman aged 85 and harming 28 people.

Extended Consequences across the European continent

Claudia had broader repercussions across Europe's western part. By drawing warm air from the warmer regions, the system helped temperatures in France's south-west to 85.6 degrees Fahrenheit, the country's highest recorded November temperature.

By the following Friday, this warm and humid air mass clashed with a chilly atmospheric body across the northern regions of the continent, forming a band of rain stretching from western Ireland to the Russian Federation.

In the United Kingdom, this halting system of rain brought record-breaking rain accumulations, causing severe flooding in the principality of Wales.

As the storm loses strength early this week, the cold air mass will move towards the south, delivering to Europe its initial glimpse of winter.

Parallel Events in California

The US state of California experienced a so-called atmospheric river last week, bringing heavy rain and strong winds that led to sudden inundations and debris flows in zones affected by blazes in the recent past.

Over two inches of rain was recorded in California's southern part on the week's end, with a another 50 millimetres widely across the state on the subsequent Saturday.

In excess of 100 millimetres of rain accumulated over shoreline regions of southern California in aggregate, attaining 200mm overall in locations at higher elevations.

This meteorological feature is a plume of warm, moist air coming from the tropics or subtropics.

Regions previously burned including Palisades and Altadena endured the most severe the flash flooding and landslides, leading to evacuations.

In other parts of the state, a 71-year-old man lost his life after his automobile was washed off a flooded bridge, and a young girl aged seven and her dad were dragged into the sea by large waves on the the state's central shoreline.