The Main Development Region for Atlantic hurricanes has been at record warm levels in 2024. (Top) Map showing where sea surface temperatures across the North Atlantic on June 16, 2024, were warmer (red) or cooler (blue) than the 1971-2000 average (white). (Bottom) The daily time evolution of Atlantic sea surface temperatures in the hurricane Main Development Region (10–25°N, 80–20°W) in 2024 (red) compared with all other years from 1982-2023 (grey) and the 1982-2023 average (black). Surface temperatures in the Main Development Region during May and June of 2024 were comparable to what we typically experience in July and August when we approach the peak of the hurricane season. Image by NOAA Climate.gov, based on NOAA's OI SST V2 High Resolution Dataset.