On Monday, a series of storms hit the parking brake in northwestern Italy, after raining more than 29 inches (742 mm) of rain in just 12 hours at a rate never-before-seen across Europe. In Oman, a rare tropical cyclone dropped years of rainfall, causing deadly flooding in a desert landscape that rarely receives much rain throughout the year.
Italy’s Genoa province, known for its natural beauty and rugged beaches, became the epicenter of the recent heavy rains.
A series of slow-moving storms lashed the region from Sunday to Monday, bringing more than 36 inches (925 mm) of rain to the city of Rossiglione, about 60 miles (100 km) southwest of Milan.
For some context, 36 inches is roughly equal to the average rainfall that is expected in Seattle in a year. It would take London an average of 15 months to match such rainfall. Dozens had to be rescued after reports of mudslides and flooding caused a bridge to collapse in the city of Quiliano, according to a Milan news outlet. Corriere della Sera
Wet weather is not uncommon in this part of Italy, as the region receives an average of over 50 inches (1,200 mm) of rain per year. However, the storm dropped about 30 inches (750 mm) in just 12 hours, setting a new European mark for Highest
12 hours of rain on record, according to climatologist and extreme weather expert Maximiliano Herrera.
In the nearby town of Cairo Montenote, about 20 miles (32 km) west of Rossiglione, the weather record continued to drop on Monday. Italy received about 20 inches (500 mm) of rain in contrast to the 6-hour deluge, which bested the national 6-hour record for the whole of Italy, Herrera noted
Just a few miles to the east, mind-boggling rain also filled the nearby town of Vicomoraso, after falling more than 7 inches (180 mm) in just one hour. flood list
, an organization that documents important flood events from around the world.
By comparison, the remnants of Hurricane Ida slashed Central Park in just 1 hour of a record 3.15 inches in early September, breaking the previous 1-hour record 11 days earlier when Tropical Storm Henry soaked the area. Had given.
rain in the desert
Less than 2 days later and a little more than 3,000 miles to the southeast, Cyclone Shaheen made landfall in far northern Oman with the winds of a Category 1 hurricane.
The storm drenched the normally dry city of Al Khaburah with more than 14 inches (300 mm) of rain in a matter of hours, according to time of oman
This is roughly equivalent to over 3 years of rainfall in 24 hours. In the nearby city of Suwaik, it rained for over a year in just 6 hours
. According to Oman’s Meteorological Department, the storm produced a remarkable 4.57 inches (116 mm) of rainfall over a 6-hour period, which is more than is typically seen throughout the year.
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A warming globe gives room for more rainfall
The significant increase in heavy rain storms seen around the world is becoming more apparent.
As global temperatures rise, extreme rainfall events will drop more water, as shown by A. According to report good
by the Intergovernmental Panel on Climate Change. The report states that for every 1 °C (1.8 °F) increase in air temperature, the atmosphere can retain about 7% more water vapor.
In the Americas, the summer of 2021 exemplified this, as tropical systems such as Ida and Henry rewrote the record books several times over the span of weeks.
In August, Tennessee broke its previous state record. 17 inches of rain
McEwen in the city in just 24 hours. A little more than a week later, the remnants of Hurricane Ida brought rain showers across the Northeast, setting daily and all-time records from New Jersey to New England.
Scientists say the rate of extreme rainfall is becoming more common because of human-caused global warming. According to the United Nations Report on Climate Change, “most of the land area has increased in frequency and intensity of heavy rainfall events since the 1950s.”
Deadly floods also made headlines around the world this summer, including deadly flooding in July in Western Europe, after several months of rain fell in hours, turning city streets into torrents of water in Belgium and Germany.
Heavy rainfall in central China in July also caused flooding, killing more than 300 people. Zhengzhou, the provincial capital of 12 million people, was one of the hardest-hit areas, with entire neighborhoods submerged and commuters trapped in flooded subway cars.