A 500-year flood means such an event has a 1 in 500 chance, or 0.2%, of occurring in a year. Another concept scientists use is how frequently an event of a certain intensity is expected.

Weather forecasters sometimes warn of storms that unleash rains so unusual they are described as 100-year or even 500-year floods. Here’s what to know about how scientists determine how extreme ...

Weather forecasters sometimes warn of storms that unleash rains so unusual they are described as 100-year or even 500-year floods. Here’s what to know about how scientists determine how extreme a ...

A "100-year flood" means a 1% chance of that level of flooding happening each year. Houston saw three 500-year flood events within three years from 2015 to 2017, including Hurricane Harvey.

(AP Photo/Alexander Zemlianichenko, File) Updated [hour]:[minute] [AMPM] [timezone], [monthFull] [day], [year] Soprano Anna Netrebko will return to London’s Royal Opera after a six-year absence to ...

She has continued to sing at most top houses and made her first U.S. appearance in six years at a Palm Beach Opera recital in February. Hrůša, who succeeds Antonio Pappano, also will conduct the ...

Soprano Anna Netrebko will return to London’s Royal Opera after a six-year absence to open the 2025-26 season in a new production of Puccini’s “Tosca” that starts Jakub Hrůša’s tenure ...