Bangladesh has a long history of deadly and costly storms. Among the most worrisome are kalbaishakhi, small but powerful storm cells that tend to affect the country in the spring. Kalbaishakhi were responsible for a 1989 tornado that is believed to be the deadliest in world history, as well as a lightning strike at a wedding party in 2021 that caused 17 deaths. Because these storms are so localized, they can be notoriously difficult to forecast, especially without access to the most advanced weather prediction technology.