Hurricane Isaias became the latest-forming first hurricane in the Atlantic Basin, breaking the previous record set by Hurricane Four in 1905.

Hurricane Isaias now holds the record as the latest forming first hurricane in the Atlantic Basin, breaking the previous record set by Hurricane Four in 1905 by 3.5 hours last night. https://www.accuweather.com/en/hurricane/isaias-breaks-121-year-record-as-the-atlantics-latest-first-hurricane/1943110

Hurricane Isaias just set a new record for Atlantic storms Isaias just became the latest-forming first hurricane of the Atlantic storm season since reliable records began, meteorologists say https://www.scientificamerican.com/article/hurricane-isaias-just-set-a-new-record-for-atlantic-storms/